Seed VC
Third Sphere
Check size: $150K to $250K
What they invest in
We support founders who turn theory into action as they work to build a better world for everyone. We fundamentally reshape broken global systems by connecting the best people reimagining our world to resources and each other, using early stage capital to upgrade systems.
Who they back
Geography
US
Recent investments
- Onewheel
- Plentify
- Chargelab
+ 3 more deals. Score your deck to see the full investment history.
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Why this firm matters for fundraising founders
Third Sphere writes first institutional checks where the founder + early product matter more than traction. The seed market is the most dispersed segment of venture; matching to thesis (sector, stage, geography) is where most cold outreach succeeds or fails. VC Boom tracks Third Sphere alongside 47,000+ other active investors, ranked weekly by recent-deal momentum, sector concentration, and partner activity.
At a glance
- Portfolio last checked
- Oct 22, 2026
- Website
- thirdsphere.com ↗
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Is Third Sphere the right fit for your deck?
Drop your pitch. VC Boom scores it on the 8 dimensions VCs read for and ranks the 47,000+ active investors in the database by fit. Third Sphere is one of them, and we'll tell you exactly where they sit in your top 100.