Carbon accounting doesn’t need another step change

It needs a movement

used by 4,007 businesses to measure emissions

17,660 carbon footprints from 17,621 companies

out with the old

Black box carbon accounting is expensive and inaccurate

embrace open data

Open tools and data removes the shackles and sets the system free

Murmurate makes carbon accounting simpler, faster and more accurate.

How it works

1

Calculate your footprint with software used by over 4,000 businesses

Comprehensive Scope 1–3 coverage, free for businesses with 500 or fewer employees.

Good morning, Tom.TPMY ‘TO DOS’DONE2026 STATSCORPORATE FOOTPRINTFRAMEWORKINTENSITYTARGETASSURANCESOURCE2027295.4₂tCOe 339.8tCOe ₂ 2026SEE ALLLATEST INSIGHTSTOP ARTICLES
  • 4,000+ business users
  • supports 173 jurisdictions
  • Scope 1, 2 and 3
2

Share your footprint privately or openly on the world’s largest free disclosure platform.

Nothing leaves your account until you say so, and you choose who sees it: chosen clients and investors, or everyone.

When you publish openly, one public record replaces dozens of supplier questionnaires a year and shows the market you’re already doing the work.

MyceliumAn illustration of the Mycelium disclosure platform as a pond

Mycelium is home to 17,660 carbon footprints from 17,621 companies

3

Join the movement. Solve Scope 3 for you and everyone else.

Every published footprint replaces an industry average guess with a real number, in your Scope 3 and everyone else’s.

Invite your suppliers to measure and the data feeds back down. It’s the only way to solve the Scope 3 challenge.