William Riggs is an operator angel with 5 known investments: American Battery Technology Company, Atmos Financial, Heex.io, Hydra Energy and OppSites.
Is William Riggs a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Focus
- AcademicAutonomous VehiclesBankingBattery TechEntrepreneurHydrogenMachine LearningPropTechRobotics
Contacts
William Riggs portfolio companies (5)
- American Battery Technology Company
- Atmos Financial
- Heex.io
- Hydra Energy
- OppSites
Investor Profile
The known portfolio sits in sectors AI, Climate, FinTech and Hardware, and focus areas Academic, Autonomous Vehicles, Banking and Battery Tech.
Stage-wise, the known deals cluster around Pre-Seed and Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Similar investors
Showing 20 of 100
Alexander Rittweger
angel investor
Munich, Germany
Jonathan B. Miller
angel investor and operator angel
Pittsburgh, United States
Ross Wightman
angel investor
Canada
Anders Fauerskov
angel investor and operator angel
Glasgow, United Kingdom
Richard Little
Angel Investor
United Kingdom
Rich Pleeth
angel investor and operator angel
London, United Kingdom
Thomas Rory Stone
angel investor and operator angel
London, United Kingdom
Alex Wyatt
operator angel
Michael Girdley
operator angel
Orlando Saez
angel investor and operator angel
Palm Beach, United States
Eliran Keren
angel investor and operator angel
Tel Aviv-Yafo, Israel
Yuquan Wang
angel investor and operator angel
New York City, United States
Siraj Khaliq
angel investor
Switzerland
Eric Di Benedetto
angel investor
San Francisco, United States
Ross Haghighat
angel investor and operator angel
West Newbury, United States
Thomas Wilke
GP
Munich, Germany
Tom Rice
EIR
Los Gatos, United States
Irwan B.
angel investor
United States
SB Serg Bell
angel investor and operator angel
Singapore
Rick Berry
angel investor
San Francisco, United States
Frequently asked questions
Who is William Riggs?
William Riggs is an operator angel with 5 known investments on file, among them American Battery Technology Company, Atmos Financial and Heex.io. The sections above list the sectors and stages attached to that record.
What does William Riggs invest in?
Listed sectors include AI, Climate, FinTech and Hardware; listed focus areas include Academic, Autonomous Vehicles, Banking and Battery Tech. 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 William Riggs invest at?
The known deals of William Riggs include Pre-Seed and 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 William Riggs?
A LinkedIn page is on file for William Riggs. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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