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Examining Diverse Investors in the Clean Energy and Environmental Technology Sector: A Network Analysis from Japan

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  • Hiroyoshi Iwata

    (Department of Technology Management for Innovation, The University of Tokyo, Tokyo 113-8654, Japan
    Institute for Future Initiatives, The University of Tokyo, Tokyo 113-0033, Japan)

  • Kotaro Kubo

    (Department of Systems Innovation, The University of Tokyo, Tokyo 113-8654, Japan)

  • Hiroko Yamano

    (Institute for Future Initiatives, The University of Tokyo, Tokyo 113-0033, Japan)

  • Masahiro Sugiyama

    (Institute for Future Initiatives, The University of Tokyo, Tokyo 113-0033, Japan)

  • Kenji Tanaka

    (Department of Technology Management for Innovation, The University of Tokyo, Tokyo 113-8654, Japan)

Abstract

Startups in the clean energy and environmental technology (CEET) sector can develop sustainable innovations, but mobilizing private finance has been difficult. As the venture capital (VC) investment model was found to be not well-suited for the CEET startups, diverse types of investors have received more attention. However, since previous studies have been dominated by a VC-centric perspective in the US and have overlooked collaborative relationships, the roles of various CEET investors have not been systematically analyzed. This study aims to analyze the diverse investors in the CEET investor network formed through co-investment syndication, using Japan as an underexplored regional context. Based on Japan’s comprehensive data from 2008 to 2022, this study examines the evolution, structure, and communities of the network. The analysis identified the development stages of the investor network: the formation stage (2008–2012), the expansion and diversification stage (2013–2017), and the stable growth stage (2018–2022). The results confirmed the strong influence of VCs, while a community analysis suggested the bridging role of governmental venture capital. The findings based on the CEET investor network contribute to expanding both the theoretical understanding and practical implications for overcoming the financing difficulties of CEET startups to address the climate change crisis.

Suggested Citation

  • Hiroyoshi Iwata & Kotaro Kubo & Hiroko Yamano & Masahiro Sugiyama & Kenji Tanaka, 2025. "Examining Diverse Investors in the Clean Energy and Environmental Technology Sector: A Network Analysis from Japan," Sustainability, MDPI, vol. 17(10), pages 1-20, May.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:10:p:4258-:d:1651392
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    References listed on IDEAS

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    1. Du, Qunyang & Li, Zhongyuan & Du, Min & Yang, Tianle, 2024. "Government venture capital and innovation performance in alternative energy production: The moderating role of environmental regulation and capital market activity," Energy Economics, Elsevier, vol. 129(C).
    2. Anna Goldstein & Claudia Doblinger & Erin Baker & Laura Díaz Anadón, 2020. "Author Correction: Patenting and business outcomes for cleantech startups funded by the Advanced Research Projects Agency-Energy," Nature Energy, Nature, vol. 5(11), pages 937-937, November.
    3. Christian Hopp, 2010. "When do venture capitalists collaborate? Evidence on the driving forces of venture capital syndication," Small Business Economics, Springer, vol. 35(4), pages 417-431, November.
    4. Yael V. Hochberg & Alexander Ljungqvist & Yang Lu, 2007. "Whom You Know Matters: Venture Capital Networks and Investment Performance," Journal of Finance, American Finance Association, vol. 62(1), pages 251-301, February.
    5. van den Heuvel, Matthias & Popp, David, 2023. "The role of venture capital and governments in clean energy: lessons from the first cleantech bubble," Energy Economics, Elsevier, vol. 124(C).
    6. Shikhar Ghosh & Ramana Nanda, 2010. "Venture Capital Investment in the Clean Energy Sector," Harvard Business School Working Papers 11-020, Harvard Business School.
    7. Anna Goldstein & Claudia Doblinger & Erin Baker & Laura Díaz Anadón, 2020. "Patenting and business outcomes for cleantech startups funded by the Advanced Research Projects Agency-Energy," Nature Energy, Nature, vol. 5(10), pages 803-810, October.
    8. Gaddy, Benjamin E. & Sivaram, Varun & Jones, Timothy B. & Wayman, Libby, 2017. "Venture Capital and Cleantech: The wrong model for energy innovation," Energy Policy, Elsevier, vol. 102(C), pages 385-395.
    9. Jin, Yonghong & Zhang, Qi & Li, Sai-Ping, 2016. "Topological properties and community detection of venture capital network: Evidence from China," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 442(C), pages 300-311.
    10. Ruling Zhang & Killian J. McCarthy & Xiao Wang & Zengrui Tian, 2021. "How Does Network Structure Impact Follow-On Financing through Syndication? Evidence from the Renewable Energy Industry," Sustainability, MDPI, vol. 13(7), pages 1-23, April.
    11. Lockett, Andy & Wright, Mike, 2001. "The syndication of venture capital investments," Omega, Elsevier, vol. 29(5), pages 375-390, October.
    12. Michael Migendt & Friedemann Polzin & Florian Schock & Florian A Täube & Paschen von Flotow, 2017. "Beyond venture capital: an exploratory study of the finance-innovation-policy nexus in cleantech," Industrial and Corporate Change, Oxford University Press and the Associazione ICC, vol. 26(6), pages 973-996.
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