COLUMN

[Founder Interview #3] Ayumi Fujimoto (Startup Ecosystem Association) – Part 3

  • Interview
2026.04.07

From Startup to Scale-up:
Mutual Growth and Realization of an Advancing Ecosystem

For this article, we interviewed the Startup Ecosystem Association’s President Ayumi Fujimoto, a leader who shares our vision for Japan’s entrepreneurial future. (This interview was conducted in January 2026.)

See Part 1 and Part 2 of the interview here.

◆The Joy of Creating Something from Zero Learned at Google

Sugihara:
Let’s take a step back into the past for a moment. we actually joined Google in the same year—2007. Back then, Google still felt like a true startup. If a problem arose, people from different departments would huddle together to solve it. We were the pioneers…there wasn’t an atmosphere of an established, incumbent corporation yet.

Later on, we both left Google at close to the same time. You moved on to Money Design (a fintech startup), and then to Plug and Play Japan, but the whole time, you’ve stayed in the startup world.

I have to ask…what has driven you to consistently choose this career path?

Fujimoto:
Once you experience that Google era like we did, you never forget the joy of building something from scratch. It becomes much more addictive than working on something that is already established.

When I first joined Google, I used to wonder why some of my senior colleagues were leaving so early in their careers. But they told me, “You’ll understand one day. Different phases of a company require different types of people, and I personally love the launch phase.” Now, I understand exactly what they meant.

Sugihara:
What is your favorite phase in a company’s lifecycle?

Fujimoto:
For my seniors, it might have been when the company was completely unknown. For me, my specialty lies in the phase where something has just started to sprout, but doesn’t quite have a clear identity yet. I love the process of giving it a name and helping it grow.

I tried to replicate that at Money Design, but I eventually ran into a dilemma: a single company cannot keep up with the sheer speed of change in the world today. That’s when I decided to pivot. Instead of running a business myself, I chose to build and steer an ecosystem that could support multiple innovators in order to achieve a lot more.

◆Resolving the Gender Gap

Sugihara:
So, you chose your current path out of a desire to deepen the role of scale-ups (the growth phase following the initial creation of something from nothing).

I also remember you being in charge of the Women Will project back in the Google era. Many of my friends were involved in that fantastic initiative. Could you explain for our readers what that project was about? Additionally, the startup world tends to be male-dominated. How do you view the current lack of female entrepreneurs, and what is your approach to changing this?

Fujimoto:
Women Will was an initiative that started even before women’s empowerment became a buzzword. The core idea was to use the power of technology to empower women. Startups are inherently places where people use technology to drive change, so there should be immense opportunities for anyone to succeed, regardless of gender or age.

While the number of female entrepreneurs and investors has grown steadily over the last decade, the lack of balance remains an issue that’s shared across the world.

One specific factor is the bias in fundraising. Female founders are often asked questions that men are not, such as “Do you plan to get married?” or “What about children?” While this could be considered as risk-hedging, we must create an environment where we face the business itself, flatly and without bias.

Our association is currently working with the Financial Services Agency (FSA) on a survey regarding the gender gap in the ecosystem. Following the increased attention on harassment issues over the last couple of years, the industry’s sense of crisis is very high. Recognizing that unfair practices are unacceptable is the first step toward improvement.

Sugihara:
In a single company, you can manage this with rules and KPIs, but changing the culture of an entire ecosystem is a massive challenge.

Fujimoto:
That is the hardest part. Since an ecosystem isn’t managed by one single person, it’s not enough to just chase a quota like “30% women”. We have to ensure true diversity where more people have access to opportunities.

Lately, more event organizers are paying attention to the balance of gender, age, and nationality among speakers. This is a great first step. The supporters of international accelerator programs are now being held strictly accountable for the diversity of their cohorts. I hope to see this approach take root in Japan as well.

Sugihara:
In the past, female entrepreneurs were often “invisible” unless you were intentionally trying to find them.

Fujimoto:
Exactly. However, from an innovation standpoint, the data is clear: diverse teams grow significantly faster. There was once an unwritten rule in Japan that a homogeneous team with shared values could move faster in the early stages. Recent studies have debunked this. If you don’t build a diverse organization from the very beginning, you won’t be able to scale the company later.

Success in scaling up depends entirely on the organizational environment. It’s no longer just a binary of male vs. female. Broad diversity, including nationality, is an essential element for Japanese startups to leap forward.

Sugihara:
That is a vital perspective. I’ve seen research showing that companies with diverse public relations and branding are more highly valued.

Fujimoto:
Our gender gap survey showed something interesting: while women feel they are at a disadvantage, men also expressed feeling a sense of suffocation or an inability to speak their minds in the current culture. It’s not about one side or the other being bad. It’s about mutual understanding.

When I think back on our time at Google, we were told not to assume that we fully understood the other person. We made sure never to operate under any kind of unspoken understanding, and we communicated clearly through dialogue to move things forward correctly.

In Japan, we often proceed with the assumption that others know what we need, and when things go wrong, we get frustrated. We need to move toward a culture where we communicate under the premise that we don’t automatically understand each other.

◆Japan’s Future Strength: Turning Technology into Business and Communicating It

Sugihara:
Indeed, it is precisely because a diverse range of personalities come together that we can create exceptional services that reach a global audience.

On that note, I’d like to ask a final question about the future. From the perspective of entrepreneurship and new business development, which domains do you believe will hold the key to Japan’s growth moving forward?

Fujimoto:
I’ve traveled the world, and thought about what Japan’s future strength will be. At this point, I am convinced the answer lies in “deep tech”.

Japan’s R&D, technical capabilities, and ideas are world-class. However, our ability to turn that into viable businesses hasn’t caught up. Japan’s big opportunity lies in bridging that gap.

A supporter in South Korea once told me: “Japanese people think if they make something good, it will be recognized. But you have to tell people it’s good, or else no one will know its value.” That might be Japanese modesty, but it doesn’t work in startups.

If we can strengthen our ability to convey our products and our business acumen, we have enormous potential.

The same applies to SaaS. Japanese services tend to stay domestic. But if we can break through the international wall and focus on scaling globally, we have a real chance.

Sugihara:
To break through that wall, it seems crucial to have a multinational team from the early stages so that launching simultaneously in multiple countries becomes the standard mindset.

Fujimoto:
I completely agree. In many other countries, that’s already the norm. We must have a sense of urgency—if we spend too much time thinking “Japan first”, we’ll end up falling a full lap behind the rest of the world.

I don’t believe every single service has to expand overseas, but there is simply too much you cannot see if you remain closed off within Japan. When a team includes members of diverse nationalities, your speed and perspective naturally shift, and you begin to notice global changes. I feel that this kind of organizational structure will ultimately dictate the growth of Japanese startups moving forward.

Sugihara:
That’s a very helpful perspective. Moving on to a question about current trends: we often see discussions in the news or in books about specific professions disappearing due to AI. What are your thoughts on this?

Fujimoto:
The impact of Generative AI is certainly obvious, but if you look back at history, there have always been certain roles jobs that disappeared and new ones that emerged. However, this time, the feeling of being robbed by AI or being replaced by something non-human is particularly strong, which is causing a lot of anxiety. But the most important premise to remember is that everything is always changing.

At the same time, isn’t the rise of AI giving us a chance to re-examine what it is that only humans can do? It’s a great time to realize our unique human value and figure out how we want to contribute and what skills we should master.

There’s really nothing to fear. It’s much more exciting to think about how to master these tools. Just try using them first!

This isn’t just about AI. We need to change our tendency to reject anything new. A mindset of “just try it, and if it doesn’t work, quit” is perfectly fine. The biggest waste of all is to limit your own potential by disliking something without having tried it first.

◆The Essential Quality of a Supporter: Outgrowing the Startups

Sugihara:
As the social environment shifts and the future is constantly being rewritten, both individuals and startups must adapt to survive. In this context, what is the role of the “scalerator”, a supporter who focuses on scaling up rather than just accelerating the early stage?

Fujimoto:
Whether you are an incubator or a “scalerator”, the most vital thing is to ensure you are growing faster than anyone else. If the person supporting a startup’s growth isn’t growing themselves, why would a founder want their help? Unfortunately, there are many “supporters” who have never touched a new tech tool or have stopped studying the latest global trends.

Being a supporter doesn’t make you superior or omnipotent. As business models and the nature of startups evolve, it is crucial that the supporter evolves at a speed that exceeds the startup itself. If you keep doing the same old thing, you’ll be seen as out of touch, or simply uncool, and startups will leave you behind. We often say that in three years, we’ll likely be talking about something completely different from today. That isn't flip-flopping, it’s positive evolution. To constantly reinvent oneself without fearing change…that is the essential quality of a modern ecosystem supporter.

◆Defining a Startup Ecosystem

Sugihara:
Finally, could you share your personal definition of a “startup ecosystem”?

Fujimoto:
By definition, an ecosystem involves the mutual interaction of organic and inorganic elements. Support often feels like a one-way street, from the supporter to the startup, but a true ecosystem requires reciprocity.

The startup should be at the center, but they shouldn’t be treated like a guest or a customer. Everyone must act as a stakeholder and a member of the ecosystem. As everyone influences one another, the ecosystem itself grows. The only way to enrich the ecosystem is for every single member to commit to continuous growth.

Sugihara:
That philosophy aligns perfectly with the vision of D-POPS GROUP. We aim to build a Venture Ecosystem where we aren’t just managing or investing, but growing together as peers. We reinvest the profits from our 25 group companies into the next generation and learn alongside them. Do you see synergy or potential for collaboration here?

Fujimoto:
I think it’s a fantastic approach. Whether we call them startups or ventures, we are all part of the same foundation of the Japanese ecosystem. The important thing isn’t who is the boss, but the shared attitude of contributing to society through business and developing together.

Ideally, this creates a chain of paying it forward, where those who were once supported by the ecosystem eventually become the ones who support it.

To be honest, now that government support in Japan has become quite generous, we are seeing cases where people build businesses solely to get subsidies, effectively capping their own potential. This is a massive information loss…a lack of awareness of the speed of the global market. That is why it’s so important for ecosystems to interact and for rich knowledge to spread.

When players with a strong philosophy like D-POPS GROUP join hands with us, that contagious mindset becomes the driving force that will truly keep Japan up to date.

Interview conducted by D-POPS GROUP’s advisor Genta Sugihara.

Startup Ecosystem Association

President: Ayumi Fujimoto
Address: 15F Toranomon Hills Business Tower, 1-17-1 Toranomon, Minato, Tokyo
Established: March 30, 2022
Website: https://startupecosystem.org/home-en

Related Articles

[Founder Interview #4] Tsuyoshi Tateishi (SpeakBUDDY) – Part 3
The Challenge for an AI English Conversation App: Creating a Language Acquisition Technology to Globalize Asia In this final part of our three-part series, we look back at the greatest crisis SpeakBUDDY faced in its 13-year history. President Tateishi shares how he navigated a dire situation, with only three months of runway left, by being brutally honest with his employees. We also discuss the company’s unique organizational culture, where a multinational team of over 10 nationalities balances autonomy with discipline, and explore his grand vision for leading Asia’s globalization. Finally, we reveal how their partnership with D-POPS GROUP is accelerating SpeakBUDDY’s ambition to become a unicorn company. (This interview was conducted in January 2026.) See Part 1 and Part 2 of the interview here. ◆Understanding How Long a Year Can Feel to an Entrepreneur Sugihara: It has been exactly 13 years since you founded your company. During that time, you’ve navigated various shifts, including the COVID-19 pandemic. Looking back over these 13 years, what were the major turning points or obstacles that you encountered, both personally and as a company? Tateishi: While the company was founded quite a while ago, for the first three years, I was developing non-AI English learning apps and operating solely on my own personal capital. The situation changed dramatically around 2016, when we pivoted fully to AI-driven English conversation and began receiving investment from venture capitalists. In that sense, it has been a long road. One thing that surprises you when you become an entrepreneur is that one year feels incredibly long. You’ve likely heard of Janet’s Law, which suggests that time feels like it passes faster as you get older. By my seventh year at the investment bank, my colleagues and I would often say, “This year is already almost over!” I think that happened because I had mastered most of my tasks, the work had become routine, and there were fewer new stimuli. However, when you start a business, new challenges appear one after another, day after day. Each time, you have to acquire new skills or come up with fresh solutions. This density of experience makes a single year feel exceptionally long. Doing that for over a decade has been a very lengthy, yet fascinating process. Regarding the COVID-19 pandemic, AI English conversation benefited a lot from the stay-at-home environment at first. However, as the period of restricted travel dragged on, Japanese people sadly stopped studying English. With no business trips, no international visitors coming to Japan, and no overseas vacations, their opportunities to think about English virtually disappeared. The entire English learning industry slumped, and it was a very difficult time for us. Fortunately, demand has now fully returned. ◆The Ultimate Crisis: An Honest Confession with 3 Months of Runway Left Sugihara: Of all the situations you’ve faced over the years, if you had to pick one, what was the biggest hurdle? And more importantly, how did you manage to overcome it? Tateishi: It was undoubtedly the period during the lead-up to our funding round, when our runway (the time left before we ran out of cash) was nearly gone. In a startup setting, you’re constantly accelerating hiring to fuel growth. When the pressure to raise capital hit at the same time as the need to keep the organization unified, it was incredibly intense. Developing AI services is a marathon. At first, the tech can’t quite match human performance, so you go through years of not being able to amount to much. But then, you hit a tipping point where the AI suddenly starts outperforming humans, and growth just takes off. 2019 was that turning point for us, and it was also our hardest year. We were right on the cusp of our Series A, but we only had about three months of cash left in the bank. I was running myself ragged trying to secure funding, while the team seemed—at least to my eyes—a bit too relaxed. Eventually, I couldn’t bear the stark contrast between my stress levels and their composure any longer. Until then, I had kept our financial numbers and cash flow concerns private because I didn’t want the team to worry, but I had finally hit my limit. I called everyone together and told them honestly, “This is exactly how much cash we have left, and this is how much we burn every month. If you do the math, we have three months. Our payday is the 25th, so I can pay you this month, but three months from today, I won’t be able to pay you any more.” I knew the risk that everyone might jump ship. But I couldn’t keep going with that emotional disconnect, so I decided to put all the cards on the table. While one person did choose to leave, the remaining ten members said, “Let’s find a way to push through this together,” and they really worked hard. That moment erased the inconsistency I had been feeling, and seeing them commit gave me the courage to keep going myself. First, I went to my former boss and humbly asked for a bridge loan to extend our runway by another three months. Then, during those three months, a new feature we developed became a massive hit. Our KPIs skyrocketed, and revenue went up as well. People started telling me, “Since you’ve come this far, I’ll throw in my investment.” We successfully raised about 300 million yen in our Series A. That was the most grueling time of my life. Since then, I’ve made it a point to share the details of our company’s expenses and exactly how much cash we have on hand. Sugihara: By doing that, I imagine the employees feel like they are truly in the same boat. Tateishi: Exactly. At the end of the day, you can’t reach the same decision if you don’t have the same information. I believe that if you make that information open to others, you’ll eventually reach a shared understanding. ◆A Team of 10+ Nationalities: The Strength and Struggle of True Diversity Sugihara: SpeakBUDDY is a remarkably global company. About a third of your employees are non-Japanese, representing over ten different countries. What are the benefits of this multinational team, and what challenges have you faced? Tateishi: It’s a bit of a chaotic mix, ha ha. ‘Diversity’ sounds great as a buzzword, but in reality, managing it is incredibly difficult. Everyone has different perspectives and values. It’s a constant challenge to keep everyone aligned. However, the upside is that it naturally brings in ideas we never would have had otherwise. We can flexibly adopt global best practices and viewpoints that aren’t bound by Japanese common sense. Plus, since we are a language company, many of our Japanese hires join specifically because they studied English and want to work in an international environment. For them, working in a cross-cultural team is a source of genuine professional fulfillment. From a management standpoint, it’s a huge strength. For specialized roles where the domestic talent pool is small, such as engineers and designers, widening our search to include global talent allows us to hire elite performers. Although, running all-hands meetings in both English and Japanese with simultaneous interpretation can be rough, ha ha. ◆Encountering D-POPS GROUP Sugihara: You recently attended our business briefing and social gathering. What were your impressions? (Click here to read more about the event.) Tateishi: I was primarily struck by the sheer number of people in attendance, since they were all executives! It made a deep impression to see leaders of that caliber listening so intently to our story, asking sharp questions, and offering collaboration ideas on the spot. During the formal briefing, I felt a bit of a distance, but once the drinks started flowing at the social gathering and we got into our personal stories, I felt like I was immediately accepted as a companion. I really felt that D-POPS GROUP is a company with a strong family vibe. Actually, we have a new feature currently in the R&D stage that hasn’t been released yet. When I shared the idea at the briefing, the reaction from the audience was overwhelming. Afterward, our Executive Officer Morimoto and I were talking about it, and we’re pretty sure that idea is going to be a hit. Having that kind of validation from a room full of entrepreneurs gave us the confidence that we’re heading in the right direction. Sugihara: SpeakBUDDY already has many supporters and investors. Why did you decide to accept our investment, and what has the experience been like so far? Tateishi: The biggest reason was that President Goto, and you as well, really listened to us with such sincerity. It made us really want to grow alongside you. D-POPS GROUP is a very unique organization, and there are many elements of your company that make me think, “This is the kind of company I want to build.” When we were raising the funds, I told my team, “I want entrepreneurs whom I truly respect to become our shareholders. I want us to aim to become a company like D-POPS GROUP, so I absolutely want to accept their investment.” My thoughts at the time were, “I want us to learn from you, so please invest in us!” ◆Building a Great Company that Balances Autonomy and Discipline Sugihara: Regarding our company’s aim of realizing a Venture Ecosystem, are there any parts of that vision that resonate with you? Tateishi: Above all, I deeply resonate with your commitment to developing unicorns. To be honest, I’ve never been the type of person to put stickers on my laptop, since I always felt, “I don’t want to ruin a machine that I’m trying to keep clean!” However, since the D-POPS GROUP unicorn sticker has a genuinely cool design, and more importantly, it serves as a constant reminder of your ambition for us to reach unicorn status, I decided to put that sticker on my laptop. Sugihara: We really appreciate that, especially since you don’t even put your own company’s stickers on it, ha ha! Now, where do you see SpeakBUDDY in 5 to 10 years? Tateishi: Over the next five years, our vision is “to become the AI language acquisition startup driving Asia’s globalization”. And in ten years, we want to fully realize our mission: “Open a world of opportunities by achieving true language acquisition.” Lately, one thing I’ve been consciously trying to pursue is “to build a truly great company”. This may be an abstract goal, but I want SpeakBUDDY’s very existence to make people say, “I’m glad this company exists.” To achieve that, I feel like we really need to return to the roots of our mission, vision, and values. Organizationally, we spent the last year significantly strengthening our discipline. Startups are often free-spirited, autonomous environments, and we ourselves operate on a hybrid model centered on full-remote work. I’m personally someone who didn’t originally like to create rules, but as we grew past 60 employees, errors and accidents inevitably started to occur. So, I decided to steer us toward a culture that strongly asks for discipline and accountability. I recently read that “only by balancing autonomy and discipline can one create a great company”, and it struck a chord. Autonomy without discipline is chaos, but discipline without autonomy is stagnation. I want both at a high level. Sugihara: Autonomy and discipline seem like opposites, but they are actually two sides of the same coin. At companies like Google, the environment looks free, but the governance and the focus on achieving goals are incredibly intense. You are free to choose how you work, but you are also held totally responsible for the mission. Both aspects co-exist. Tateishi: Very true. That’s directly related to the recent moving of our office and us paying closer attention to the culture we’re building. ◆From Asia to the World: Leading Global Integration Sugihara: Do you have concrete plans or an outlook for expanding into the market in Asia and the rest of the world? Tateishi: We do. While we’ve temporarily paused our efforts to enter the Taiwanese market, we’re looking at opportunities to move into East Asia first, followed by Southeast Asia. Ultimately, we want to expand to Europe and the rest of the world. Sugihara: Right, since Southeast Asia alone has a population of over 600 million. Tateishi: It is a remarkably attractive market. There are billions of people worldwide struggling with English, so we want to provide our services to them, for sure. First, we’ll focus on succeeding in Japan, and then scale up from there. ◆A Message to Readers: “A New Way to Master English” Sugihara: Finally, do you have a message for our readers? This column is read closely by executives, entrepreneurs, and investors who have a real eye for professionalism. Tateishi: Everyone can feel the staggering pace of AI evolution every day. In an era like this, I believe we are being asked to question traditional methods and try something new. For English learning, too, I encourage everyone to try different methods from what you’ve done before. At the risk of sounding biased, I believe English is only going to become even more important for business professionals as AI makes international collaboration easier. We are seeing an increasing number of young people for whom English fluency is a given. We hope the professionals currently leading our industries will also take advantage of SpeakBuddy to brush up on their language skills, develop their own unique English style, and not get left behind by the younger generation. Interview conducted by D-POPS GROUP’s advisor Genta Sugihara. SpeakBUDDY, Ltd. President and CEO: Tsuyoshi Tateishi Address: 3F +SHIFT Nihonbashi Sakuradori, 3-14-3 Nihonbashi, Chuo-ku, Tokyo Established: May 2013 Website: https://www.speakbuddy.com/en
  • Interview
2026.04.28
[Founder Interview #4] Tsuyoshi Tateishi (SpeakBUDDY) – Part 2
Design Concept that Combines SLA Theory and a Sense of Companionship to Truly Teach Japanese People to Speak In Part 1, President Tateishi shared the story of how 5,000 hours of studying led to his mission of utilizing technology to tackle the challenge of learning English. In Part 2, we delve into the core of SpeakBUDDY’s rapidly growing AI English conversation service, which has been adopted by over 300 companies. What is the decisive difference between SpeakBUDDY and major competitors like Duolingo or Speak? Beyond simply being available anytime, anywhere, for anyone, President Tateishi discusses their unique Second Language Acquisition (SLA) theory and meticulous design philosophy that enables Japanese learners to achieve true fluency. (This interview was conducted in March 2026.) ◆The Four Pillars of SpeakBUDDY’s Competitive Advantage Sugihara: Now that we’ve heard the particulars of how SpeakBUDDY came about, could you explain to our readers about your company’s AI English conversation service that has come this far? Tateishi: SpeakBUDDY is an English conversation service where you practice with AI characters, which we call “Buddies”, rather than human instructors. It’s not just a back-and-forth exchange with these Buddies, though. The service is designed so you learn essential expressions through immersive storylines. These expressions are categorized by level, allowing users to master key phrases suited to their specific proficiency in each lesson. There are four key reasons why this approach is superior to face-to-face lessons. The first is that you can learn anytime, anywhere. The second is that it is significantly more affordable than hiring human tutors. The third is particularly relevant for Japanese learners, who often feel embarrassed about making mistakes or intimidated by talking to foreigners. With an AI, those barriers vanish, so you can make mistakes and learn with total confidence. The final reason is learning efficiency. AI-driven analysis allows for a more effective learning cycle than a human teacher can provide. AI English conversation excels in these four places. Sugihara: The anytime, anywhere aspect is a big one. How long does a typical lesson take? Tateishi: A single lesson is completed in about 15 minutes. We’ve heard from many users that even online video lessons can be a hassle because they feel they have to dress up, do their hair, put on makeup, etc., before jumping into a call with a human instructor. Our app eliminates that friction, allowing people to learn whenever they have a spare moment without any preparation. ◆Where SpeakBUDDY Differs from Duolingo and Speak Sugihara: Recently, we’ve seen a rise in similar services like Duolingo and Speak. Could you walk us through where SpeakBUDDY excels and what makes it unique compared to those other players? Tateishi: We have immense respect for Duolingo as a service. However, we view them more as a comprehensive learning platform focused on vocabulary and grammar rather than specialized for speaking. Because they prioritize gamification, they are an excellent entry point for beginners to engage with a new language as if they were playing a game. In contrast, we are hyper-focused on speaking. For the Japanese people who have studied English to some extent in middle and high school but still find themselves unable to speak, SpeakBUDDY is the more effective fit. Regarding Speak, the US-based AI app that also focuses on verbal expression, I believe we have the edge in two areas. The first is ease of use. Our UI and UX are meticulously crafted to be intuitive, making it easier for users to build a daily habit. The second is our scientific foundation. We’ve integrated rigorous Second Language Acquisition (SLA) theories into the very core of our design to ensure users achieve actual fluency. The fusion of these two elements is where we stand out. Sugihara: I’ve noticed the app can be quite persistent with having me review expressions right when I’m about to forget, ha ha. Tateishi: That’s the idea! Our review system is based on Ebbinghaus’ “forgetting curve”. We ensure that learning is reinforced through spaced repetition to guarantee retention. Packaging such high-level pedagogical expertise into an app is one of our greatest strengths. The other differentiator is in the name itself: the “Buddy”. While apps like Speak can feel like you’re talking to a somewhat mechanical interface, SpeakBUDDY is built on storytelling and rich character development. We’ve created a world where you interact with human-like IP (original characters) within realistic scenarios, and that fundamental philosophy sets us apart. Sugihara: The character design is certainly distinct. You encounter characters like a boss with a realistic Indian accent, which makes the conversation feel grounded in the real world. The entire app feels like one cohesive universe. Is this design aesthetic a point of particular focus for you? Tateishi: Absolutely. We are a company that is obsessed with design, and I take great pride in our incredibly talented design team. We even received the Good Design Award in 2021. Actually, our entire design team currently consists of international talent. I’ve always personally loved the type of UI/UX aesthetics found in the West, so having international designers lead the creative process is a defining characteristic of our product. At our core, we believe that consistency is key to language acquisition, and the key to consistency is enjoyment. Internally, we often use the terms ‘Buddy-ness’ or ‘Buddy sense’ to describe how we want every aspect of our app experience, from the characters to the interface, to embody a sense of companionship and rapport. ◆Over 300 Clients: Rapid Growth in the Corporate Market Sugihara: Have you been putting a lot of effort into developing your corporate client base? What kind of companies are adopting your services, and what are their primary objectives? Tateishi: We have focused heavily on corporate expansion over the last three years. Due to the increasing need for communication driven by corporate globalization, we have now surpassed 300 corporate clients. Most companies implement the service as part of their self-improvement programs or employee benefit packages. In terms of industries, while we naturally serve global enterprises, we’ve seen a recent surge across all sectors due to a recent trend towards management of human capital. More companies want to support their employees’ self-development through paying for our services. After all, there are people who genuinely want to improve their English in every company. We see a particularly high rate of adoption in the IT, manufacturing, and customer service industries. We already provide sector-specific content, and we plan to further strengthen our corporate-oriented curriculum moving forward. Sugihara: What kind of feedback are you getting from these companies? Tateishi: It’s incredibly rewarding to hear from HR managers that their employees no longer feel a resistance to speaking English or that they have begun participating proactively in international meetings. We often hear from HR and training coordinators that they have never seen such a positive internal response to an English training program before. Sugihara: I see, so the employees themselves are reporting their satisfaction back to the HR department. Tateishi: Right, and then the number of applicants for the program is often multiple times higher than the original estimated number of applicants. Apparently, the turnout has been up to ten times higher than for in-person English conversation training. I’m pretty sure the fact that you can start so casually, with such a low barrier to entry, must be a big factor. We’re also seeing significant adoption in the hospitality sector, such as hotels. With the rise in inbound tourism, SpeakBUDDY is proving very effective in lowering the so-called “English allergy” barrier for staff when international travelers drop by their shops or hotels. ◆More Employee-Friendly than Traditional English Training Sugihara: In many large Japanese corporations, English training often comes with rigid requirements, like having to achieve a specific TOEIC score. Tateishi: That’s true. Traditional corporate English training usually felt like a burden…you had to hit a certain score, or you might even have to pay for it yourself if your attendance was too low. SpeakBUDDY’s greatest strength is its ability to be offered to a wider range of people at a lower cost. Instead of a mandatory chore, it becomes an employee benefit that people want to take advantage of. Sugihara: That approach is only possible because so many of your customers study consistently. Is the corporate segment still growing at this point? Tateishi: Yes, it’s continuing to grow very rapidly. If there are any companies out there struggling with their English training programs, please do introduce them to us, ha ha! ~To be concluded in Part 3~ Interview conducted by D-POPS GROUP’s advisor Genta Sugihara. SpeakBUDDY, Ltd. President and CEO: Tsuyoshi Tateishi Address: 3F +SHIFT Nihonbashi Sakuradori, 3-14-3 Nihonbashi, Chuo-ku, Tokyo Established: May 2013 Website: https://www.speakbuddy.com/en In the third and final part of the interview, we discuss: ・Gathering all employees together for an honest confession of short funding ・Building a great company that balances autonomy and discipline ・Creating an AI language learning startup that will drive globalization in Asia ・And other topics Be sure to check it out here: https://d-pops-group.co.jp/en/column/speakbuddy-part3/
  • Interview
2026.04.21
[Founder Interview #4] Tsuyoshi Tateishi (SpeakBUDDY) – Part 1
From 280 Points on TOEIC to a Perfect Score and 5,000 Hours of Studying, Forming a Belief in the Necessity of AI English Conversation In December 2025, D-POPS GROUP invested in SpeakBUDDY Ltd., the developer and operator of the “SpeakBuddy” AI English conversation app. (Read more about it here.) How did someone who was once considered the worst English student in his grade go on to build a cutting-edge, AI-powered English conversation service? In this three-part series, we look into the entrepreneurial journey of SpeakBUDDY’s founder Tsuyoshi Tateishi and the future he envisions for language learning. In Part 1, we explore his incredible transition from a low TOEIC score of 280 to 5,000 hours of dedicated study, his experiences at a foreign investment bank, and how a trip around the world sparked the idea for AI-driven English conversation. (This interview was conducted in March 2026.) ◆“Worst at English in the Entire Grade” Sugihara: To start off, could you tell us what gave you the initial push to develop the SpeakBuddy app? Tateishi: First of all, the biggest reason I chose the field of English was because I was actually terrible at it during my student years. English requires consistent, cumulative effort, but I hit a wall in my first year of junior high school and just couldn't keep up with my classes after that. By high school, my teacher told me I was "the worst at English in the entire grade." Sugihara: So the student who was the worst in his grade became the CEO of an English conversation app company, ha ha! Tateishi: Exactly. That was my reality in high school, but the turning point came during my job hunt in university. I received a tentative offer from a foreign investment bank, and starting my career there was what finally forced me to start learning. Sugihara: It was a foreign-owned firm, so didn't they interview you in English? Tateishi: Oh, they did. The final interview was in a boardroom with the then-CEO of Citigroup Global Markets Japan and a row of executives from various departments. At the time, they were testing whether candidates could handle that kind of pressure. Since investment banking is a business where people are the only real assets, they were looking for character. That 10-on-1 interview was mostly in Japanese, but at the very end, the HR Director said, “Alright, I’m going to ask you a question in English, so please answer in English.” Up until that point, all the interviewers were Japanese, so they were probably assuming, “He graduated from Keio University, so he can probably handle it.” But in fact, my English was non-existent. My TOEIC score was only 280, so I knew I wouldn’t be able to understand any questions if they asked me in English, so I had prepared exactly one response in my head: “I can’t speak English. But I will study hard. So, no problem!” I said it with total confidence, but in fact, that single sentence was the only English I had learned. Back at that time, just memorizing that one phrase had been a struggle for me! The entire room of interviewers froze. Everyone was like, “Wait, what? You applied here with that level of English? This is a foreign firm…what are you expecting to do?” However, this was during my third year of university, so I told them, “I still have one year until I graduate.” At the time, I had just become the youngest person that year to pass the CPA exam at age 20. I was studying 14 hours a day…other than study and sleep, I would spend only two hours a day to shower, eat, and commute. I was used to finishing an entire textbook in a single day. So, I truly believed it when I told them, “I have a year, and that’s enough time for me, seriously.” At the time, I figured if I could get a 750 on the TOEIC, I would be basically fluent. Compared to the CPA exam, where if you fail, you have to wait another year, I felt no pressure at all. When I said, “I’ll start tomorrow”, they looked at me and said, “You do look like the type of guy who would actually do that.” Still, I walked out thinking I had definitely failed the interview, since it was a global firm and I couldn’t speak a word of English. But later that day, someone from their HR called me. Apparently, the CEO had been my biggest advocate. He told them, “Hire that guy.” The HR worker asked me, “What on earth did you say to the CEO?” Now, what I had told the CEO was this: “I might not speak English now, but through my CPA studies, I realized there isn’t that much difference in the capacity of human brains. It’s all about having grit. I know for sure that if I put my mind to something, there’s nothing I can’t achieve, and I will absolutely get this done.” The CEO decided, “Let’s hire one interesting guy like this”, and that’s how I got the job. ◆The Problem for Japanese Who Study English for 5,000 Hours Tateishi: Over the following years, I reached a perfect score on the TOEIC, passed the Eiken Grade 1 (the highest level of Japan’s most popular English proficiency test), and logged a cumulative total of approximately 5,000 hours of English study. Through those 5,000 hours, I had a painful realization: learning English would be far more difficult than I thought it would be when I was job hunting. I realized that this might be the single greatest challenge facing the Japanese people. I struggled with it while at that foreign-owned firm, and even after I moved to a Japanese brokerage, I was stationed in Hong Kong where I had to use both English and Chinese. If you can't use the language, you simply cannot do the job. I learned enough Chinese in Hong Kong to handle daily conversation, but if people ultimately can't understand what you're saying, you can't conduct business. Japanese people are excellent workers, but just because their English isn't great, my compatriots were being looked down on by people from headquarters or other overseas branches, and I couldn't stand it. During global training sessions and such, Japanese participants may not be able to speak English at all, but when it comes to the actual work output, they are consistently the best. Changing the reality that Japanese people are brilliant but are dismissed because they can’t communicate in English became my core motivation. I spent 5,000 hours to get there, but that’s not a realistic path for everyone. I want to use the power of technology to drastically shorten that time. This is the fundamental reason I chose the field of English education and began developing SpeakBuddy. ◆Making a “Doraemon” Who Can Speak English at Home Sugihara: Did you always have the desire to be an entrepreneur, even as a student? Tateishi: I did. I remember asking during my job interviews, “If I work at this investment bank, will it help me when I start my own company later?” But after seven years of intense, high-pressure work, I had completely forgotten that dream. However, as my desire to create a service that truly helps society grew stronger, I remembered, “Oh right, I actually wanted to start a company!” So, I quit as soon as I returned from my overseas assignment. I decided to quit first, and think of a business plan later. So, with my back against the wall, I finally went on the world tour I had always wanted to do, and I mapped out my business plan while traveling. While hopping from country to country, I was also teaching myself app development. The English learning app I built during that trip actually reached number 1 in the overall App Store rankings. Sugihara: Hitting an overall ranking of 1 is incredible! Was that app the prototype for what SpeakBuddy is today? Tateishi: Yes, I’d say that was the prototype. During my world tour, I also did a short-term study abroad program. Even when you are overseas, you find yourself wanting someone to practice English conversation with. But making friends in English out of thin air is incredibly difficult. People always say, “Just get a foreign boyfriend or girlfriend”, and I actually tried to do that while I was abroad, but it’s not as easy as it sounds, ha ha! While I was abroad, I thought, “If only I had a Doraemon* at home who could speak English with me, that would be enough.” That desire to create a Doraemon who speaks English was the starting point of our service. *Note: ‘Doraemon’ is a beloved character from a Japanese children’s cartoon who always helps the other characters with their various problems. I included a voice recognition feature in that first app, and I’m proud to say it was likely the first app in Japan to feature English voice recognition. However, back in 2014, the accuracy was still quite low. But over the next year or two, I felt the technology improving at an exponential rate. I became convinced that in the future, I would be able to create a real AI English conversation partner. In 2016, I stopped everything else I was working on and focused all my resources on AI English conversation. ◆The Problem with AI-related Branding in 2016 Sugihara: When you released the precursor to your current app back in 2016, were you already using the word ‘AI’? Tateishi: Yes. Even at the 2016 launch, we were calling it ‘AI English Conversation’. Since we had no capital at the start, we began with a crowdfunding campaign. It went surprisingly well—we raised about 4 million yen—and we were already positioning it as an AI-driven service even then. Sugihara: The speed of AI adoption and evolution lately is staggering. While language models have developed explosively in the last year or two, you were really at the forefront. Tateishi: We were the only ones in that space back then. But honestly, the immediate aftermath of the release was a struggle. People in 2016 were very vocal with their skepticism, asking, “Where exactly is the AI in this?” They’d complain, “I’m talking, but this doesn’t recognize my voice at all!” Back then, AI conversation meant little more than speaking to a character with an electronic voice. The conversational AI was still in its infancy, with a simple tree structure where we programmed specific responses to specific phrases. You couldn’t engage with it via truly free conversation like we have now. In the end, because we were getting so many reviews asking “Where’s the AI?”, we actually removed the word ‘AI’ from our branding around 2017. Having AI in the title seemed to raise expectations so high that it led to people leaving 1-star reviews, so we decided to take it out for a while. Then, around 2019, speech recognition technology started to improve dramatically. We also built our own proprietary speech recognition engine, which boosted our accuracy significantly. From that point on, the quality of our conversational AI was able to truly shine. Sugihara: When I try using features like BuddyChat now, the AI responds naturally even if I say something completely random or trivial. It clearly isn’t just simple pattern recognition anymore. Tateishi: Yes, it can handle tangents and keep the conversation going. I feel like I can finally say “This is AI” with my head held high. Back in 2015 and 2016, we were right in that peak of inflated expectations on the hype cycle, which was followed by a valley of disillusionment. During that valley, people kept telling me, “AI is a joke; it’ll never work.” But gradually, it became the real deal. Sugihara: For someone who has been working on this for a decade, do you feel like it's about time for the AI boom to finally sweep across the world? Tateishi: In a way, yes. It feels like things are moving exactly as I expected, though there’s a bit of a time lag in terms of when the world finally noticed. To be honest, even with GPT, we were looking at GPT-2 and saying, “This is going to be incredibly useful.” So by the time GPT-4 arrived, our reaction was like, “Well, it’s already been impressive since the beginning.” It’s only been in the last few years that speech recognition, Natural Language Understanding (NLU), and Personalized Learning Logic have finally synced up. Because the level of inference has jumped so significantly recently, we can now provide high-level free talk like BuddyChat. It feels like the times have finally caught up with SpeakBUDDY. ~To be continued in Part 2~ Interview conducted by D-POPS GROUP's advisor Genta Sugihara. SpeakBUDDY, Ltd. President and CEO: Tsuyoshi Tateishi Address: 3F +SHIFT Nihonbashi Sakuradori, 3-14-3 Nihonbashi, Chuo-ku, Tokyo Established: May 2013 Website: https://www.speakbuddy.com/en Next, in the second part of the interview, we discuss: ・The four pillars of SpeakBUDDY's competitive advantage ・Where SpeakBUDDY differs from Duolingo and Speak ・Rapid growth in the corporate market and feedback from business clients ・And other topics Be sure to check it out here: https://d-pops-group.co.jp/en/column/speakbuddy-part2/
  • Interview
2026.04.15
Back to COLUMN