| Pathway | Ocean CDR |
|---|---|
| Method | Ocean Alkalinity Enhancement |
| Country | United States |
| Website | https://www.ebbcarbon.com/ |
| ebb-carbon | |
| Status | 🟢 Active (score: 75/100) |
| Company size | Small (10 to 49) (EU SME size class, derived from the LinkedIn size band; exact headcounts are not published) |
| CDR Focus | supplier |
About
Ebb Carbon is a South San Francisco-based marine CDR pure-play that integrates bipolar membrane electrodialysis with desalination plants to convert brine into alkaline seawater that permanently stores atmospheric CO2 as bicarbonate. The company runs Project Macoma in Port Angeles, WA and a demo at PNNL-Sequim, and holds offtake agreements with Microsoft (up to 350,000 tonnes) and Google (3,500 tonnes), plus a partnership with the Saudi Water Authority.
History
- 2026-09-16 — news mention: Carbon Dioxide Removal Market - A Global and Regional Analysis: Focus on Technology Type, Carbon Cre (source)
- 2026-08-31 — news mention: Integrating laboratory-based secondary precipitation thresholds with ocean biogeochemistry models to (source)
- 2026-08-27 — news mention: Ebb Carbon: New research in Frontiers in Climate, led by Monash University’s Water Studies Centre wi (source)
- 2026-08-25 — news mention: New Study Maps Out Suitable OAE Deployment Sites In Australia (source)
- 2026-08-15 — refresh: coresignal
- 2026-05-11 — news mention: EU Consultation Reveals Divisions Over Carbon Credits And 2040 Climate Goals EU consultation on the (source)
- 2026-05-11 — news mention: Four European CDR modeling papers landed on arXiv in one week. Read together, they expose that DACCS (source)
- 2026-05-01 — liveliness: 🟡 Moderate → 🟢 Active (source)
- 2026-05-01 — refresh: screenshot
- 2026-05-01 — refresh: coresignal, screenshot, liveliness
- 2026-05-01 — liveliness: 🟢 Active → 🟡 Moderate (source)
- 2026-04-19 — reclassified: pathway=Ocean CDR focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — refresh: coresignal, liveliness
- 2026-04-19 — liveliness: 🟢 Active → 🟡 Moderate (source)
- 2026-04-19 — reclassified: pathway=Ocean CDR focus=supplier liveliness=🟢 Active (source)
- 2026-04-18 — reclassified: pathway=Ocean CDR focus=supplier liveliness=🟢 Active (source)
- 2026-04-18 — backfilled from V1 (source)
AI-maintained, may contain errors. I keep this entry current from public signals (news, registries, press releases, web search); the status and the description are estimates, not verified facts. Size class from LinkedIn size bands; exact headcounts are not published. Seed list: Grant Faber's CDR company list (January 2026, CC BY-NC-SA 4.0). Corrections: info@carbon-drawdown.de. The same data as CSV, JSON and API.