RealTech Fund Completes Final Closing of 4th Fund at Approximately 12.5 Billion Yen

Japan's largest-ever fund dedicated to bringing deep tech to social implementation begins operations

UntroD Capital has completed the final closing of the "RealTech Fund 4 Investment Limited Partnership (RTF4)," which specializes in supporting seed and early-stage deep tech startups, reaching a total investment of approximately 12.5 billion yen. RTF4 is the largest RealTech Fund to date and one of the largest venture capital funds in Japan specializing in deep tech.

RealTech Fund celebrated its 10th anniversary in 2025. Over these 10 years, it has launched more than 100 deep tech startups in collaboration with researchers and entrepreneurs, contributing to solving social issues both domestically and internationally. With RTF4, the challenge of creating "the next 10 years" is now in full swing. Leveraging new technologies along with the knowledge and networks accumulated over time, the fund will accelerate social implementation more deeply and broadly.

Strengthening Collaboration with Nationwide Bases to Create Regional Deep Tech

RTF4 has strengthened its access to and support system for regional technology seeds more than ever before, promoting the commercialization of high-potential deep tech dormant in regional areas. The fund has established bases for discovering and nurturing technology seeds throughout Hokkaido and Kyushu at "EZOHUB SAPPORO" in Sapporo City (reference) and "Fukuoka Growth Next" in Fukuoka City (reference), with "Region Managers" at each base strengthening collaboration with universities and research institutions nationwide.

Through this close collaboration with regional bases, the fund is expanding the reach of technological innovation across all of Japan, rather than concentrating solely on Tokyo, and is accelerating the creation of globally-oriented startups originating from regional areas.

New Participation from Japan Investment Corporation and Decarbonization Fund

RTF4 implemented a second close in July 2024, and for this final closing, new participants include Japan Investment Corporation and the Decarbonization Venture Support Fund of Funds operated by MCP Asset Management.

With the participation of institutional investors aligned with national agendas for nurturing Japan's critical technologies and realizing a decarbonized society, the fund aims for further development as an independent venture capital fund.

Aiming for Japanese-originated Social Implementation — RealTech Fund's Achievements and Mission

Since its establishment in 2015, RealTech Fund has specialized in investing in deep tech startups that aim to solve social issues through research and technology in fields such as energy, materials, space, ocean, and biotechnology, consistently providing support with social implementation as the ultimate goal. To date, the fund has invested in 85 companies in Japan across more than 25 prefectures, with approximately 70% being startups originating from universities and research institutions, establishing itself as a foundation supporting deep tech startups throughout Japan.

RTF4 represents both the culmination of knowledge, networks, and achievements cultivated over the past 10 years and the starting point for creating the next 10 years. Beyond mere funding, the fund has built systems to help startups solve social issues and create impact through hands-on support from a professional team optimized for the deep tech sector and global expansion support.

Additionally, the fund has focused on forming an ecosystem that bridges large corporations, government agencies, and research institutions, establishing a support scheme that considers social implementation from the initial stages of business development.

RealTech Fund will continue to root the deep tech ecosystem in regional areas, connect technology seeds from across Japan with global social issues, and accelerate social transformation through deep tech.

RTF4 Partner Companies

• Organization for Small & Medium Enterprises and Regional Innovation

• Japan Investment Corporation

• Mizuho Bank

• MCP Asset Management

• Shinnippon Denko

• Honda Motor

• Mitsuboshi Belting

• The Senshu Ikeda Bank

• Okasan Securities Group

• The Kyoto Shinkin Bank

• The Kyoto Chuo Shinkin Bank

• Tokyo Century Corporation

• Kanamori Sangyo

• KOBASHI HOLDINGS

• Sintotoyo

• Nishimoto Wismettac Holdings

• Nihon Kotsu

• Fuji Electric

• Matsui Securities

• Sumitomo Mitsui Trust Bank

• Yamada Shokai Holding

Overview of RTF4

• Investment Target: Deep tech startups across Japan that contribute to solving global and human challenges through superior technology

• Investment Areas: Biotechnology, aerospace, electronics, agriculture/marine, environment/energy, new materials, etc.

• Investment Stage: Focusing on seed and early stages, with some investment in middle stages

• Investment Stance: Providing hands-on support as a lead investor

• Operation Period: Approximately 10 years from October 2023 (with the possibility of extension up to 3 years)

About UntroD Capital Japan

UntroD Capital Japan established the "RealTech Fund" in 2015 with the aim of social implementation of deep tech startups with innovative technologies for solving global and human challenges, providing lead investment and hands-on support to seed and early-stage startups. To date, the company has managed RealTech Funds 1-4 (Japan Funds), RealTech Global Funds 1-2 (Global Funds), RealTech Growth Fund 1 (Japan Fund), and the Crossover Impact Fund (Japan Fund), with total assets under management exceeding 40 billion yen. To better embody its will to be the first to step into uncharted territories that society needs but where capital is difficult to flow, proving their economic viability to ensure continuous supply of capital and talent, the company relaunched in June 2024 under the name "UntroD," meaning "uncharted."