Sean McArthur is an angel investor and operator angel based in Seattle, Washington, United States. The known portfolio counts 10 companies: Accellion, SintecMedia, Spoken Communications, Virtana, Aptina, Liquid Robotics, Supply Chain Resources Group, UGSI Solutions Inc., Virtual Instruments and iFLY Indoor Skydiving.
Is Sean McArthur a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Stage
- Seed
- Focus
- Aerial PhotographyCloud ComputingDefenseEnterprise SaaSGISGeospatial DataLiDARMapping
Contacts
Sean McArthur portfolio companies (10)
- Accellion
- SintecMedia
- Spoken Communications
- Virtana
- Aptina
- Liquid Robotics
- Supply Chain Resources Group
- UGSI Solutions Inc.
- Virtual Instruments
- iFLY Indoor Skydiving
Investor Profile
The known portfolio sits in sectors AI, Hardware and SaaS, and focus areas Aerial Photography, Cloud Computing, Defense and Enterprise SaaS.
Stage-wise, the known deals cluster around Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Similar investors
Showing 20 of 100
Mark Scianna
angel investor and operator angel
San Francisco, United States
John McEleney
angel investor and operator angel
Winchester, United States
Bill McCullen
angel investor
Acton, United States
Oleg Rogynskyy
angel investor and operator angel
Washington, United States
T. A. McCann
Managing Director
Seattle, United States
Adam Doppelt
angel investor and operator angel
Seattle, United States
Matthew Cowan
General Partner
San Francisco, United States
Brian Vierra
General Partner
Bend, United States
Michael Marquez
Founding Partner
San Francisco, United States
Stephen Marcus
Co-Founder & General Partner
Los Angeles, United States
Ian McNish
Partner & Mentor
Mountain View, United States
Chris MacFarland
angel investor and operator angel
Plano, United States
Scott Roza
Senior Advisor
Seattle, United States
David Aronchick
angel investor and operator angel
Seattle, United States
Keith J. Masback
angel investor
New York, United States
Michael E Marks
Founding Managing Partner
San Francisco, United States
Sean M.
angel investor and operator angel
Aspen, United States
Scott Faber
operator angel
San Francisco, United States
Emlyn Scott
Managing Partner
Sydney, Australia
Simon Anderson
angel investor and operator angel
Henderson, United States
Frequently asked questions
Who is Sean McArthur?
Sean McArthur is an angel investor and operator angel based in Seattle, Washington, United States with 10 known investments on file, among them Accellion, SintecMedia and Spoken Communications. The sections above list the sectors and stages attached to that record.
What does Sean McArthur invest in?
Listed sectors include AI, Hardware and SaaS; listed focus areas include Aerial Photography, Cloud Computing, Defense 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 Sean McArthur invest at?
The known deals of Sean McArthur include Seed 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.
How do I contact Sean McArthur?
An email address, a phone number and a LinkedIn page are on file for Sean McArthur. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal