Third Sphere is a venture capital firm and venture debt provider. Based in New York, United States. Among the 20 companies in the known portfolio are Shellworks, CYCLE, Near Space Labs, Nevoya, AccessGrid and ChargeLab.
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Investment focus
Contacts
Who to pitch at Third Sphere
Third Sphere portfolio companies (20)
- Shellworks
- CYCLE
- Near Space Labs
- Nevoya
- AccessGrid
- ChargeLab
- Loamist
- SOS
- wasted
- Earth Force Technologies
- Phuc Labs
- Renewell Energy
- Resonant Link
- Sention Technologies
- Sonic Fire Tech
- Domatic
- Forest3 AI
- Merino Energy
- Singularity Energy
- Swellcycle
Co-investors
Funds that share portfolio companies with Third Sphere.
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About Third Sphere
The firm's listing covers sectors AI, Climate, Commerce and Hardware, and focus areas Autonomous Vehicles, Clean Energy, Clean Tech and Clean and Renewable Energy; known deals cluster at Pre-Seed, Seed and Series A.
Shaun Abrahamson (Managing Partner), Stonly Blue (Managing Partner) and Shilpi Kumar (Board Partner) are listed as the contacts to pitch at Third Sphere.
Across the known portfolio, 20 co-investors appear alongside Third Sphere, including Spice Capital, JamJar Investments and For Later.
Frequently asked questions
What is Third Sphere?
Third Sphere is a venture capital firm and venture debt provider based in New York, United States, with a known portfolio of 20 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Third Sphere invest in?
Listed sectors include AI, Climate, Commerce and Hardware; listed focus areas include Autonomous Vehicles, Clean Energy, Clean Tech and Clean and Renewable Energy. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Third Sphere invest at?
The known deals of Third Sphere include Pre-Seed, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Third Sphere?
All 3 people on file at Third Sphere are listed as contacts for the firm, each with their own profile page.
How do I contact Third Sphere?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 3 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal