United States · 
Who invested in OpenSolar?
OpenSolar's investors include Google, Titanium Ventures and 2150 Sustainability Fund.
United States · Venture startup
Who invested in OpenSolar
One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Funding summaryUpdated 5 Nov 2026
$20Mraised across 1 round since 2025, from 2 sources
- Latest round
- Venture, $20MOct 2025
- Investors
- 3
The rounds
- Oct 2025
Founders and team
From OpenSolar's own website: 2 founders, 8 on the team.
Andrew BirchCEO and Co-founder
Adam PryorCTO and Co-founder
- Andy RoseGlobal Head of Commercial
- Joe AbelGlobal Head of Finance & Monetization
- Lavinia DavisonGlobal Head of Operations
- Louise ButterworthGlobal Head of User Success
- Oz WilksGlobal Head of Product
- Patrick CraneGlobal Head of Growth
- Tom ByrneGlobal Head of Software
- Tom KaremacherGlobal Head of Sales
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 4 firms list OpenSolar as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about OpenSolar
How much has OpenSolar raised?
OpenSolar has raised $20M across 1 round since 2025.
When did OpenSolar last raise?
OpenSolar's most recent round was a Venture of $20M in Oct 2025.
What was OpenSolar's biggest round?
Its most recent round, $20M in Oct 2025, is also its largest on record.
Who backed OpenSolar first?
OpenSolar's first round on record, in Oct 2025, was backed by Google, Titanium Ventures and 2150 Sustainability Fund.
What stage is OpenSolar at?
OpenSolar's latest named round is a Venture, in Oct 2025.
Where is OpenSolar based?
OpenSolar is based in the United States.
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