| Pathway | Enhanced Weathering |
|---|---|
| Secondary pathways | Enabling Tech |
| Method | Enhanced Rock Weathering |
| Country | United States |
| Website | https://syntopa.com/ |
| syntopa | |
| Status | 🔴 Likely Dead (score: 15/100) |
| Company size | Micro (under 10) (EU SME size class, derived from the LinkedIn size band; exact headcounts are not published) |
| CDI Portfolio | yes |
| CDR Focus | supplier |
About
Founded in 2023 by Hans Holtan, Syntopa develops microbial products addressing the intersection of crops and climate, starting with microbes for enhanced rock weathering, and raised a $575,000 pre-seed round from Ponderosa Ventures. The company operates from a lab in Alameda, California, where it isolates soil microbes and has built a collection of over 1,200 rock-weathering soil microbes from three continents. Syntopa is also backed by the Carbon Drawdown Initiative and was preparing 2025 field trials.
History
- 2026-10-15 — refresh: coresignal
- 2026-10-15 — refresh: coresignal
- 2026-09-15 — refresh: coresignal, screenshot
- 2026-08-15 — refresh: coresignal, liveliness
- 2026-08-15 — liveliness: 🟠 Suspect → 🔴 Likely Dead (source)
- 2026-07-15 — refresh: coresignal
- 2026-07-15 — refresh: coresignal
- 2026-06-15 — refresh: coresignal
- 2026-06-15 — refresh: coresignal
- 2026-05-01 — refresh: screenshot
- 2026-05-01 — refresh: coresignal, screenshot, liveliness
- 2026-05-01 — liveliness: 🟢 Active → 🟠 Suspect (source)
- 2026-04-19 — reclassified: pathway=Enhanced Weathering focus=supplier liveliness=🟢 Active (source)
- 2026-04-19 — refresh: coresignal, screenshot, liveliness
- 2026-04-19 — liveliness: 🟢 Active → 🟠 Suspect (source)
- 2026-04-19 — reclassified: pathway=Enhanced Weathering focus=supplier liveliness=🟢 Active (source)
- 2026-04-18 — reclassified: pathway=Enhanced Weathering 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.