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Keiretsu Capital LLC

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Investment thesis

Keiretsu Capital is the exclusive worldwide fund partner of Keiretsu Forum, the world's largest angel investor network. The firm manages co-investment, blockchain, and real estate funds that enable limited partners and accredited investors to access proprietary deal flow generated by Keiretsu Forum's 3,000+ angel members across 50+ chapters on four continents. As stated on its LinkedIn page: 'Keiretsu Capital aims to provide significant capital appreciation through investment in high quality emerging companies that have been funded by the world's largest angel investor network, Keiretsu Forum, as well as other top tier angel groups.' The firm focuses on impact, IT, health-tech, fintech, and cleantech industries, investing alongside angels to complete rounds and source follow-on capital, while leveraging its syndication network of family offices, institutional investors, and crowdfunding partners.

Notable quotes

Nathan McDonald currently manages over $24M across four funds with over 200 investors and 165 investments to date. Keiretsu Forum and Keiretsu Capital are ranked as the most active venture investors in the USA according to PitchBook.

Nathan McDonald · Keiretsu Forum Northwest blog – 'The Art and Science of Startup Valuation'

Keiretsu Capital provides its investors access to proprietary deal flow by investing alongside the angels, providing additional capital to complete rounds and acting to source follow on capital where appropriate.

Nathan McDonald · LinkedIn company page – Keiretsu Capital

We have built a strong network headquartered in Seattle with a powerful investor network across the globe. Since its inception, we believe in investing in diverse opportunities and helping scale early-stage companies.

Nathan McDonald · Keiretsu Capital website – About Us

Recent investments

CompanyRoundSizeDate
Skip TechSeed2025-12-15
AprioritySeed2025-10-23
TympanogenSeed2025-02-17
HealionicsSeries A$6m2024-02-22
OtoNexus Medical TechnologiesLater Stage VC2024-04-01
EarthGridSeed2024-04-01
HaptXSeed
Mission BioSeed
iCan Be WellSeed
ZiveSeed$3m2024-09-01

Frequent co-investors

VC firmDeals together
Keiretsu Forum31
Alliance of Angels10
K2X5
TCA Venture Group5
To Life! Capital4
Indian Angel Network3

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