Third Sphere (formerly Wireframe Ventures)
VC
San Francisco, CAWebsite
How to approach: cold outreach ok
Stage
Pre-Seed, Seed
Check Size
$200K – $2.0M
Portfolio
2+ companies
Team
1 partner
Investor activity
Investments in last 12 months: 0Investment Thesis
Invests in early-stage startups solving the climate crisis through new energy, sustainability, and waste solutions.
Meet the Team
JP
Joshua Posamentier
Managing Partner
Climate
Clean Energy
Impact
Industry Focus
Invests In
Other
Climate / Energy
Does Not Invest In
Consumer goods
Entertainment
Portfolio Companies (2)
Other
RE
Redaptive
Energy Efficiency
BR
Brightwheel
Education/Impact
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Frequently Asked Questions
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