Billy Parish is an angel investor and operator angel based in Berkeley, California, United States. The known portfolio counts 2 companies: EarthAid and Motor Excellence.
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Investment focus
- Focus
- Clean EnergyClean TechnologyConcentrated Solar PowerHVACMarketplacesSolar Financing
Contacts
Billy Parish portfolio companies (2)
- EarthAid
- Motor Excellence
Affiliated funds' portfolios
Mentor at Unreasonable, whose known portfolio counts 2 companies
- Eneza Education
- Classcraft
Investor Profile
The listing covers sectors Climate, Energy and FinTech, and focus areas Clean Energy, Clean Technology, Concentrated Solar Power and HVAC. Startups operating in these areas may find Billy Parish relevant.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues at Unreasonable
Joel Wish
Angel Investor & Advisor
Austin, United States
Rafe Furst
Unreasonable Mentor
Boulder, United States
Mark Curtis
Unreasonable Mentor
London, United Kingdom
Soumitra Mishra
Unreasonable Fellow
San Francisco, United States
Peter Bruce-Clark
Mentor
London, United Kingdom
Kathryn Wortsman
Unreasonable Mentor
Toronto, Canada
Minchan Park
Director of Venture Selection & Investments
London, United Kingdom
Danny Kennedy
Unreasonable Mentor
Oakland, United States
Tayo Oviosu
Unreasonable Fellow
Nigeria
Sanu Desai
Mentor
San Francisco, United States
Mike Curtis
Unreasonable Mentor
Honolulu, United States
Andy Boyd
Mentor
Barcelona, Spain
Brendan Richardson
Unreasonable Fellow
Charlottesville, United States
Itaru Shiraishi
Unreasonable Mentor
Japan
Corinne Gray
Vice President
United Kingdom
Tony Guo
Portfolio & Investment Selection Principal
Toronto, Canada
Sophie Sandham
Director
Cape Town, South Africa
Brittany Mazal
Chief Executive Officer
San Diego, United States
Krating Poonpol
Founding Member
Bangkok, Thailand
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Frequently asked questions
Who is Billy Parish?
Billy Parish is an angel investor and operator angel based in Berkeley, California, United States with 2 known investments on file, among them EarthAid and Motor Excellence. The sections above list the sectors and firms attached to that record.
What does Billy Parish invest in?
Listed sectors include Climate, Energy and FinTech; listed focus areas include Clean Energy, Clean Technology, Concentrated Solar Power and HVAC. 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.
Which firm is Billy Parish listed at?
Billy Parish is listed as Mentor at Unreasonable. 19 other people in the database share a firm with Billy Parish.
How do I contact Billy Parish?
An email address, a phone number and a LinkedIn page are on file for Billy Parish. 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