Key facts
- Capture6’s last known valuation is $117.5M (Mar 2025).
- It has raised $34.4M across 1 recorded rounds; the latest was Early Stage VC ($27.5M) in Mar 2025.
- Notable investors include Greentown Labs, Third Derivative, Elemental Impact, Urban Future Lab, Creative HQ — 17 tracked in total.
- Capture6 has filed 2 Form Ds with the SEC, most recently Oct 2023 ($6.8M sold to 45 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 1 rounds
- ·The complete investor list — 17 names
- ·Watchlist + deal alerts for Capture6
Funding rounds
1 roundsAbout Capture6
Developer of a carbon dioxide removal technology designed to reduce emissions of climate gases. The company's technology uses electrochemistry to convert seawater into an alternative that pulls carbon dioxide from the air and deposits it into the ocean with an ancillary benefit to ocean health, enabling businesses, governments, and communities to decarbonize operations through integrated direct air capture approaches.
- Sector
- Energy
- HQ
- San Francisco, CA, United States
- Founded
- 2022
- Employees
- 28
- Website
- capture6.org/
- Ownership
- Privately Held (backing)
Capture6 doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Capture6 shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Capture6 in its N-PORT filings yet. We sweep new filings monthly.