PathwayBiomass Burial
Secondary pathwaysBiochar
MethodBiCRS (Other)
CountrySwitzerland
Websitehttps://arrhenius.com/
LinkedInarrhenius-ag
Status🟢 Active (score: 75/100)
Company sizeMicro (under 10) (EU SME size class, derived from the LinkedIn size band; exact headcounts are not published)
CDR Focussupplier

About

Arrhenius AG is a Swiss HSLU (Lucerne University of Applied Sciences and Arts) spin-off founded in 2023 that grows microalgae in photobioreactors and geologically stores the resulting biomass to generate carbon removal credits. The company is pursuing a pilot plant in Portugal in partnership with Algae for Future SA (A4F) at sites in Lisbon and Matacães, and is developing a parallel AlgaeCycle wastewater-to-biochar project in Lucerne.

Arrhenius website

History

  • 2026-09-18 — news mention: Carbon Capture, Utilization, and Storage in the Production of Heavy Construction Materials (source)
  • 2026-09-06 — news mention: Arrhenius: We are pleased to announce the successful closing of our seed funding round. This investm (source)
  • 2026-08-15 — refresh: coresignal
  • 2026-07-14 — news mention: You’re right on timescales. Novel CDR removes well under 0.01 Gt CO2/yr today vs ~40 Gt emitted. Eve (source)
  • 2026-07-13 — news mention: Arrhenius AG successfully closed a seed funding round which will help the company scale its carbon r (source)
  • 2026-07-13 — news mention: Arrhenius AG To Scale Microalage-Centered BiCRS With New Seed Funding (source)
  • 2026-05-01 — refresh: screenshot
  • 2026-05-01 — refresh: coresignal, screenshot
  • 2026-04-19 — reclassified: pathway=Biomass Burial focus=supplier liveliness=🟢 Active (source)
  • 2026-04-19 — refresh: coresignal, screenshot
  • 2026-04-19 — reclassified: pathway=Biomass Burial focus=supplier liveliness=🟢 Active (source)
  • 2026-04-18 — reclassified: pathway=Biomass Burial focus=supplier liveliness=🟡 Moderate (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.