for Overseas Investors

About us

A one-of-a-kind
Community
where Entrepreneurs
aim for the Stars.

Chiba Dojo is an entrepreneurial community with the capabilities of a venture capital firm. Around 100 visionary entrepreneurs actively collaborate and push each other to achieve ambitious goals — true to our mission, “Catch The Star.” This exclusive community is open only to entrepreneurs backed by the Chiba Dojo Fund. Established in 2019 to foster and grow this vibrant entrepreneur community, the Chiba Dojo Fund has raised around JPY 6 billion in each fund with support from a diverse range of LPs. We actively invest in a broad spectrum of startups and are committed to supporting visionary founders who will shape the future.

千葉道場ファンドと起業家、そしてコミュニティの関係を表した図

mission and vision

Mission

Catch The Star.

Vision

Creating a brighter, happier future
through technology that solves
the world’s greatest challenges.

our team

千葉 功太郎の写真

Kotaro Chiba

General Partner, Chiba Dojo Fund

石井 貴基の写真

Takaki Ishii

General Partner, Chiba Dojo Fund

廣田 航輝の写真

Koki Hirota

General Partner, Chiba Dojo Fund

百瀬 聡美の写真

Satomi Momose

Fund Controller, Chiba Dojo Fund

岡本 亮太の写真

Ryota Okamoto

Associate, Chiba Dojo Fund

牧田 恵里の写真

Eri Makita

fellow, Chiba Dojo Fund

General Partner, Chiba Dojo Fund

Kotaro Chiba

After graduating from Keio University’s Faculty of Environment and Information Studies, he began his career at Recruit Co., Ltd., later holding key roles at Cybird Co., Ltd. and K Laboratory Co., Ltd. In 2009, he joined Colopl Inc., becoming Executive Vice President the same year. He led talent acquisition and organizational development, helping guide the company through its IPO on the Tokyo Stock Exchange Mothers market in 2012 and its TSE First Section listing in 2014, before stepping down in 2016. An active angel investor, He has personally invested in over 60 startups and 40 venture capital funds worldwide, with a focus on internet and real-tech sectors. In 2017, he founded Drone Fund, serving as Founder & General Partner. He has been a Visiting Professor at Keio University SFC since 2019. In July 2019, he launched Chiba Dojo Fund to merge the power of a founder-led community with venture capital. In 2021, he became an Outside Director of the SPAC Pono Capital, which listed on NASDAQ that same year. He is also the owner and pilot of Japan’s first HondaJet.

General Partner, Chiba Dojo Fund

Takaki Ishii

He began his career in 2009 at Recruit Co., Ltd., working in real estate advertising sales, before joining Sony Life Insurance Co., Ltd. in 2011 as a financial planner, where he advised households across regional Japan. Witnessing the challenges of declining local economies and the heavy burden of education costs, he founded Aoi Co., Ltd. in March 2012, launching Aoi Zemi, a free online learning platform. In 2014, alongside fellow entrepreneur Daisaku Harada of Zawatt Inc., and with the support of angel investor Kotaro Chiba, he envisioned Chiba Dojo—a community where founders could openly share and support each other. Since the inaugural gathering, he has participated in every Chiba Dojo event. In November 2017, Aoi was acquired by the Z-kai Group. Remaining as CEO, he developed multiple joint ventures within the group before stepping down in March 2019. He joined Chiba Dojo Fund as a Partner and Director in August 2019, and in 2023, he was appointed Co-CEO and General Partner.

General Partner, Chiba Dojo Fund

Koki Hirota

Born in 1993, he graduated from Osaka City University with a degree in Commerce and joined SBI Investment in 2017. As a lead investor, he worked across seed to later-stage deals, focusing on IT and deep tech sectors. His responsibilities included sourcing, due diligence, portfolio support, and executing exits. In November 2020, he joined Chiba Dojo Fund, where he is engaged in fund formation, sourcing new investment opportunities, supporting portfolio companies, and managing reporting activities.

Fund Controller, Chiba Dojo Fund

Satomi Momose

She began her career at Nippon Life Insurance Company, where she was involved in sales operations and the design of training programs. She later joined HERP, Inc., gaining experience in customer success for SaaS products. In April 2022, she joined Chiba Dojo Fund, where she is responsible for fund administration and management.

Associate, Chiba Dojo Fund

Ryota Okamoto

He earned a Master’s degree in Urban Engineering from the Graduate School of Engineering at the University of Tokyo. In 2022, he joined Mori Building Co., Ltd., working in the Overseas Business Division on real estate investments, portfolio management, and urban redevelopment planning, with project responsibilities in Shanghai, Jakarta, and New York. In 2025, he joined Chiba Dojo Fund as a venture capitalist, focusing on sourcing new investment opportunities and providing hands-on support to portfolio companies.

fellow, Chiba Dojo Fund

Eri Makita

While studying at Tokyo University of Science, she co-founded and served as CEO of a joint venture with a Southeast Asian company. In April 2013, she joined a venture capital firm led by Taizo Son. In 2015, she founded tsumug Inc., the developer of the accessibility control system TiNK, and launched TiNK Desk, a spatial service utilizing underused spaces. She also serves as a part-time lecturer at Kyoto University of the Arts, teaching a course on startup thinking.

investment policy

Investment Stage

Chiba Dojo Fund primarily invests in startups at the Seed, Early (Pre-Series A), and Later stages. We actively support our portfolio founders from the moment they join the Chiba Dojov community through to a successful exit (including IPO). We also provide follow-on funding beyond the initial investment, often making significant later-stage investments to accelerate growth and maximize impact.

Investment Sectors

We invest across a wide range of industries and business models without setting rigid boundaries. Our scope extends beyond Japan, with active consideration for opportunities in North America, Southeast Asia, and other international markets. The only exception is the drone sector, which lies outside our investment scope. For drone-related ventures, please contact Drone Fund.

Investment Amount

For Seed to Early-stage (Pre-Series A) rounds, our typical initial investment ranges from a few million yen to roughly JPY 300 million. For later-stage rounds, we generally invest from tens of millions up to JPY 600 million . ※This is the maximum amount we may invest in a single round

Investment Approach

In Seed to Early-stage rounds, we usually serve as the lead investor (though we can also co-invest alongside other lead investors). In later-stage financings, we typically participate as a follow-on (non-lead) investor.

Investment Philosophy

We are a venture capital fund built on the foundation of an entrepreneurial community. Beyond conventional investment decisions, we invest with the aim of welcoming founders into our community.

investment process

Our standard investment process takes about
one month from the initial meeting to a final investment decision.