PathwayEnabling Tech
Secondary pathwaysBiochar, Mineralization, Biomass Burial, Afforestation
MethodUnknown
CountryUnited Kingdom
Websitehttps://www.pinwheel.earth/
LinkedInpinwheelworld
Status🟒 Active (score: 70/100)
Company sizeSmall (10 to 49) (EU SME size class, derived from the LinkedIn size band; exact headcounts are not published)
CDR Focusecosystem

About

Pinwheel (trading name of Messier Holdings Limited) is a UK-based climate engagement platform that curates and brokers carbon removal and biodiversity projects for corporate clients, allowing employees and customers to vote on which projects receive funding. The company identifies, validates and verifies CDR projects (e.g. biochar, mineralization, biomass burial via InterEarth) and sources buyers, rather than operating any physical removal itself.

Pinwheel (Messier Holdings Limited) website

History

  • 2026-10-15 β€” refresh: coresignal, screenshot
  • 2026-05-01 β€” refresh: coresignal, screenshot
  • 2026-04-19 β€” refresh: coresignal, screenshot
  • 2026-04-19 β€” reclassified: pathway=Enabling Tech focus=ecosystem liveliness=🟒 Active (source)
  • 2026-04-19 β€” url added from cdr.fyi supplier page: https://www.pinwheel.earth/ (source)
  • 2026-04-19 β€” discovered via: cdrfyi (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.