Investor profile
Nathan McDonald
Angel, Operator angel, Syndicate / Angel group & CEO & Managing Partner at Keiretsu Capital, Chairman at Keiretsu Forum
Nathan McDonald is an angel investor and operator angel based in Seattle, Washington, United States with 6 known investments: Joylux, TranscribeMe, UnaliWear, Alyte, OtoSense and Theo Chocolate.
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Investment focus
- Sector
- AIHardwareHealthcareSaaS
Contacts
Nathan McDonald portfolio companies (6)
- Joylux
- TranscribeMe
- UnaliWear
- Alyte
- OtoSense
- Theo Chocolate
Affiliated funds' portfolios
CEO & Managing Partner at Keiretsu Capital, whose known portfolio counts 10 companies
- Clensta
- NuvOx Therapeutics
- Another Tomorrow
- Tenzr Health
- CurvaFix
- Healionics
- MiClient
- Buoy
- EarthGrid PBC
- Hotel Communication Network
Chairman at Keiretsu Forum, whose known portfolio counts 10 companies
- AiM Medical Robotics
- Apriority Financial
- Motion Gestures
- Swisspod
- ALM Ortho
- BatteryPool
- Kibus Petcare
- Bliss
- ActuatedMedical
- Kisaan Se Kitchen Tak
Investor Profile
The known portfolio sits in sectors AI, Hardware, Healthcare and SaaS, and focus areas Biotech, Data Analytics, Diagnostics and Enterprise SaaS.
Nathan McDonald appears in Seed and Series A rounds across the known deals.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues
Showing 20 of 47
Matthew Le Merle
Managing Partner
San Francisco, United States
Mansyij Das
Member
United States
Theodore Stearns
Entrepreneur
San Diego, United States
Byron McCann
Member
Seattle, United States
Ira Wallace
Angel Investor
Philadelphia, United States
Ajay Mihani
Senior Portfolio Manager
India
David Hildebrandt
Investor
San Francisco, United States
Randy Williams
Founder and CEO
San Francisco, United States
Kevin Sterling
Keiretsu Forum Chapter President
Vaughan, Canada
Greg Hill
Director
Victoria, Canada
Mahinder Chugh
President
Orange County, United States
Russell Hinds
Member
Austin, United States
Lauren Anderson
Entrepreneur Director
Washington, United States
Christian Haller
Investor
Richmond, United States
Eric Gabrys
Investor
San Francisco, United States
Jordan Walla
Investment Associate
Jakarta, Indonesia
Erkan Başboğa
Accredited Angel Investor / Akredite Melek Yatırımcı
Istanbul, Turkey
Bryan Brewer
Executive Director
Seattle, United States
Trey Natherson
Angel Investor Forum Member
Camas, United States
Robin Bisarya
Investor
San Diego, United States
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Frequently asked questions
Who is Nathan McDonald?
Nathan McDonald is an angel investor and operator angel based in Seattle, Washington, United States with 6 known investments on file, among them Joylux, TranscribeMe and UnaliWear. The sections above list the sectors, stages and firms attached to that record.
What does Nathan McDonald invest in?
Listed sectors include AI, Hardware, Healthcare and SaaS; listed focus areas include Biotech, Data Analytics, Diagnostics and Enterprise SaaS. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Nathan McDonald invest at?
The known deals of Nathan McDonald include Seed and Series A rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Nathan McDonald listed at?
Nathan McDonald is listed as CEO & Managing Partner at Keiretsu Capital. 47 other people in the database share a firm with Nathan McDonald.
How do I contact Nathan McDonald?
An email address, a phone number and a LinkedIn page are on file for Nathan McDonald. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal