About Stone
Built at the intersection of accounting and climate
Stone was created by a UK accountant who kept being asked by clients for carbon data, with no good tool to produce it from. Every existing option needed spreadsheet imports, separate logins or a consultancy engagement. Stone is the tool that should already have existed.
Why this matters now
UK companies supplying larger firms are already being asked for Scope 3 data. SECR is mandatory for large UK companies and cascades through supply chains.
UK Sustainability Reporting Standards (IFRS S1 and S2, published February 2026) roll out to listed companies first, then cascade through their supply chains.
Thresholds are expected to lower and lenders increasingly require defensible emissions data. Practices that adopt Stone early build a continuous, clean data history from day one.
A practice that started early holds years of continuous, ledger-linked, auditable data. A tool onboarding at the compliance deadline cannot reconstruct that history.
Our innovation thesis
The ledger is the source of truth, not a spreadsheet import. Every emission traces to a transaction.
Stone translates emissions into financial terms: cost exposure, margin sensitivity, lender risk. The language of business.
Accountants are how SMEs access professional services. Stone is built for practices: multi-org workflows, audit trails, compliance outputs.
Want to learn more?
We are happy to talk through how Stone could work for your practice.