| Pathway | Mineralization |
|---|---|
| Secondary pathways | DAC |
| Method | Enhanced Rock Weathering |
| Country | United States |
| Website | https://travertinetech.com/ |
| travertine | |
| Status | 🟢 Active (score: 100/100) |
| Company size | Small (10 to 49) (EU SME size class, derived from the LinkedIn size band; exact headcounts are not published) |
| Open roles | 2 on cdrjobs |
| CDR Focus | supplier |
About
Travertine Technologies is a Boulder, Colorado-based CDR company that spun out of Laura Lammers’ lab at UC Berkeley in 2022 and received one of the first pre-purchases of CDR credits from the Frontier Climate Fund. Its electrochemical process combines sulfate-rich mining waste containing calcium, magnesium, or phosphogypsum with hydroxyl ions from water electrolysis, absorbing CO2 from air or point sources to form carbonate materials sold to the construction industry. The company closed an $8.5 million financing co-led by Holcim MAQER Ventures with Grantham Foundation, Clean Energy Ventures, and Bidra Innovation Ventures to commercialize the platform.
Registry Memberships
- Cdrjobsearth
History
- 2026-10-06 — news mention: Travertine: 📢 NEWS RELEASE: Arianne Phosphate has completed the production of purified phosphoric ac (source)
- 2026-09-15 — refresh: coresignal, screenshot
- 2026-07-30 — news mention: Travertine: 📢 NEWS RELEASE: Arianne Phosphate has completed the production of purified phosphoric ac (source)
- 2026-07-05 — news mention: Explainer: Mineralization is the CDR family that turns CO2 into solid carbonate rock. Once bonded in (source)
- 2026-07-05 — news mention: Good point. The airborne fraction has held near 44% for decades, but recent years show wobble. If la (source)
- 2026-05-01 — refresh: screenshot
- 2026-05-01 — refresh: coresignal, screenshot
- 2026-04-19 — reclassified: pathway=Mineralization focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — refresh: coresignal
- 2026-04-19 — reclassified: pathway=Mineralization focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — reclassified: pathway=Mineralization 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.