| Pathway | Biochar |
|---|---|
| Secondary pathways | Biomass Burial |
| Method | BiCRS (Other) |
| Country | United States |
| Website | https://carba.com/ |
| carbainc | |
| 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 |
| Registry-verified | Isometric |
About
Carba is a Minneapolis, Minnesota carbon removal company whose pyrolysis technology and burial method removes CO2, storing biochar underground in low-oxygen environments using a patented, highly efficient pyrolysis reactor. The company will deliver 44,000 CDR credits to Microsoft over 5 years, and its methodology is certified by carbon removal registry Isometric for 1000+ year durability. Carba also received a $7 million DOE Carbon Negative Shot Pilot grant and is backed by GigaClimate Builder.
Registry Activity
Independently verified by carbon-credit registries:
Isometric
- 1 project · Biochar ↗
Data from Puro.earth and CarbonPlan OffsetsDB (Verra, Gold Standard, ACR, CAR, ART, Cercarbono, Isometric). Refreshed monthly.
Registry Memberships
- Cdrjobsearth
History
- 2026-11-01 — news mention: U.S. Bank ↔ Carba — biochar (source)
- 2026-10-10 — news mention: Carba: Great news to share for the Carba team! Carba earned the largest allocation in Milkywire’s la (source)
- 2026-10-01 — news mention: Milkywire: 🌍 Milkywire has completed eight Salesforce-backed pre-purchases, securing 3,661 tonnes of (source)
- 2026-09-12 — news mention: As I understand it, Carba sold the biochar based CORCs to U.S. Bank for less than $100/tonne of CO2. (source)
- 2026-09-07 — news mention: Carba Inaugurates Molten Salt Reactor in Minnesota to Boost Biochar Efficiency and Yields – Bi (source)
- 2026-09-07 — news mention: U.S. Bank is one of our major banks that has pretty much divested from the fossil fuel industry. Ca (source)
- 2026-09-07 — news mention: U.S. Bank Makes Its First CDR Investment, Backing Carba’s Biochar Approach (source)
- 2026-09-05 — news mention: Carba: Carba is excited to share a carbon removal first with U.S. Bank . We are transforming urban w (source)
- 2026-09-05 — news mention: Carbon Removal Alliance: Carba is excited to share a carbon removal first with U.S. Bank . We are tr (source)
- 2026-08-15 — refresh: coresignal
- 2026-05-01 — refresh: screenshot
- 2026-05-01 — refresh: coresignal, screenshot
- 2026-04-19 — reclassified: pathway=Biochar focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — refresh: coresignal
- 2026-04-19 — reclassified: pathway=Biochar focus=supplier liveliness=🟢 Active (source)
- 2026-04-18 — reclassified: pathway=Biochar 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.