Seattle · Pre-Seed–Series A · 28 people tracked
Also known as Keiretsu Capital Blockchain of Funds
Find your way into Keiretsu Capital
1,004 people in our graph share verified history with the Keiretsu Capital team — schools, employers, funds. One of them is your warm intro.
Investment thesis
Keiretsu Capital offers high-net-worth and experienced investors exposure to early-stage growth startups, technology companies, and real estate opportunities sourced through the Keiretsu Forum angel investment network. It provides diversification via funds, direct co-investment opportunities including in blockchain technology, and syndication networks that connect portfolio companies and real estate principals with family offices, institutional investors, and crowdfunding partners. The firm draws on over 20 years of team experience backing early-stage companies and leverages one of the world's largest angel investor networks.
Source: firm website, verified Aug 3, 2026.
Team · 28 people
from the firm's website & curated & public directories
Founder mafia
2 people who came through Keiretsu Capital went on to found or lead other companies.
What they invest in
from 8 of 12 portfolio companiesHealthtech ×5Medical Devices ×5Biotech ×4AI & Machine Learning ×2Hardware ×2Cloud Computing ×1Cybersecurity ×1Deep Tech ×1
HQs:United States×10
Investments · 12 tracked
founders shown can be your intro pathBy year:2020 · 32018 · 12017 · 22016 · 22015 · 210 dated
Cloud ComputingCybersecurityEnterprise SoftwareFintechSaaSBoulder, US
Co-investorsNext Frontier CapitalTechstarsRockies Venture Club
Blaze Bioscience develops peptide-based fluorescent imaging agents and imaging systems that give surgeons real-time visualization of tumor tissue during cancer surgery.
BiotechHealthtechMedical DevicesSeattle, US
James M. Olson(Director)Steven R. Daly(Executive Officer, Director)inLudmila R. Lobanova(Executive Officer)Julia Novak(Executive Officer)Heather L. Franklin(Director)Dennis M Miller(Executive Officer)
Co-investorsKeiretsu Forum
CurvaFix develops the CurvaFix Low Profile intramedullary nailing system, curved implants for surgical stabilization of pelvic fractures.
HardwareHealthtechMedical DevicesBellevue, US
Jeffrey Poole(Executive Officer)Mark Foster(Executive Officer, Director)inSteven Dimmer(Executive Officer, Director, Promoter)Dong-Gun Kim(Director)
BoardEric Fritz(Director)inJack Tanaka(Director)in
Co-investorsAlliance of AngelsRockies Venture ClubSPRINGROCK VENTURESSwan Venture FundMVM Life Science PartnersSectoral Asset Management+1 more
INDIGO Biosciences is a life sciences company led by professionals with expertise in life sciences, business management, and operations.
AI & Machine LearningBiotechDeep TechMedical DevicesState College, US
Dr. Jack Vanden Heuvel(Chief Scientific Officer, Co-founder)inDr. Blake Peterson(Co-founder)Fred Marroni(President & Chief Executive Officer)in
Co-investorsBroad Street AngelsiNetworksLife Sciences Greenhouse Investments
LumiThera develops the Valeda Light Delivery System, an FDA-authorized photobiomodulation (PBM) device that applies multiple light wavelengths to treat early and intermediate dry age-related macular degeneration (AMD).
BiotechHealthtechMedical DevicesPoulsbo, US
Tracy Puckett(Executive Officer)Clark Tedford(Executive Officer, Director)inScott Bradley(Executive Officer)inDuane Morrison(Executive Officer)inCindy Croissant(Executive Officer)Ryan Montecucco(Executive Officer)
Co-investors3E Bioventures CapitalLife Sciences Greenhouse InvestmentsImagine Ventures
OtoNexus Medical Technologies is developing an ultrasound-based otoscope (Novoscope) that uses a miniaturized sensor in a single-use ear speculum tip to give clinicians objective, point-of-care data on middle-ear fluid and infection type.
AI & Machine LearningDigital HealthHardwareHealthtechMedical DevicesSeattle, US
Caitlin Cameron(Chair & CEO)in
Co-investorsGolden SeedsDellin InvestmentsFarvatn VentureKeiretsu ForumMindshift CapitalPortfolia+3 more
Albany, US
Carlo Morgantini(Executive Officer, Director)Benjamin Cooley(Director and Chief Executive Officer of the Issuer.)
Co-investorsKeiretsu Forum
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Embera NeuroTherapeuticsEternaTearOtoNexus Medical TechnologiesTextile-Based DeliveryVoyager Pacific Capital Management
Exits · 1
1 acquisitionsAlpinacq. by CoreView
Portfolio news
latest coverage across their companiesAlpin · forbes.com · Jul 17, 2026
Frequently asked questions
- How many investments has Keiretsu Capital made?
- Keiretsu Capital has 12 tracked investments, 1 of which have exited.
- What stage does Keiretsu Capital invest at?
- Keiretsu Capital invests at the Pre-Seed, Seed, Series A stages.
- What sectors does Keiretsu Capital focus on?
- Keiretsu Capital focuses on Crypto & Web3, Deep Tech, PropTech, Sector Agnostic.
- Where is Keiretsu Capital located?
- Keiretsu Capital is headquartered in Seattle, US.
- Does Keiretsu Capital lead rounds?
- Keiretsu Capital typically participates in rounds rather than leading them.
Media · Podcasts & interviews
featuring the teamNathan McDonald (CEO of Keiretsu Capital) interviews Keiretsu Member - Kelly Charlton
Keiretsu Forum · Nathan McDonald
REIMAGINE 2020 v2.0-Matthew Le Merle-Co-founder & Managing Partner of Fifth Era and Keiretsu Capital
REIMAGINE - Web3 Events and Media · Matthew Le Merle
Blockchain Interviews with Nathan McDonald, CEO of Keiretsu Capital
InvestmentPitch Media · Nathan McDonald
Matthew Le Merle, Managing Partner Keiretsu Capital #2019blockchaincrypto
FinTech Silicon Valley · Matthew Le Merle
Matthew Le Merle, Managing Partner Keiretsu Capital #2019bullorbearcrypto
FinTech Silicon Valley · Matthew Le Merle
Blockchain Disruption: Matthew Le Merle, Keiretsu Capital
FinTech Silicon Valley · Matthew Le Merle
Images
Co-investors · 8
Band of Angels is a formal organization of 150+ angel investors, primarily former and current technology executives, that conducts weekly member events and monthly deal pitch dinners. Since its founding in 1994 as the first organized high-tech angel investment group in the USA, it has invested in over 500 companies, achieving 97 profitable mergers and acquisitions and 17 IPOs.
Mayfield is a venture capital firm that invests in early-stage consumer and marketplace companies, backing founders from inception through IPO.
FundersClub is an online venture capital firm and startup investing platform that gives accredited investors access to vetted early-stage startups from Silicon Valley and beyond.
Social Starts is a group of early-stage venture funds that applies a data-driven, analytics-based methodology to identify and back promising companies in high-potential segments. Its current fund, Social Starts Health and Happiness, targets startups focused on helping people live longer and better.
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Renegade Partners is a founder-led early-stage venture firm that makes a small number of high-conviction investments each year, focusing primarily on Series A rounds with select seed and Series B deals, and providing hands-on partnership around people operations and strategy.
Brand Foundry Ventures is a consumer product-only seed investor that focuses exclusively on "things you can see, touch, feel, and interact with" rather than software, targeting sustainable $250M-$750M outcome brands instead of chasing billion-dollar unicorns. The firm was born from Andrew Mitchell's successful angel investments in Warby Parker, Birchbox, Harry's, and Peloton, and maintains an unusually hands-on approach through their "People/Product/Pipeline" framework that requires founders to think as deeply about supply chain and margins as they do about design and marketing.
Listen Ventures is a consumer-focused venture capital firm founded in 2010 that partners with founders to build disruptive brands amid shifts in consumer behavior.
True Wealth Ventures is a venture firm that invests in early-stage, women-led companies focused on improving human and/or environmental health.
Firms observed investing alongside Keiretsu Capital, from public investor directories. Shared companies are the overlap with Keiretsu Capital's recorded portfolio.
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