Where Accounting Meets Sustainability
Turn your Xero financial data into audit-ready ESG disclosures. SECR compliance, DEFRA emission factors, and carbon reporting — all in one serene platform.
Financial Data → Carbon Insights
Trusted by forward-thinking firms
From Transactions to Compliance in Four Steps
Stone automates the entire journey from raw accounting data to regulatory-ready carbon reports.
Connect
Link your Xero account with a single click. Your data syncs automatically.
Classify
AI categorises every transaction into the right emission activity type.
Calculate
DEFRA emission factors are applied automatically to compute your carbon footprint.
Report
Generate audit-ready SECR-compliant disclosures in minutes, not weeks.
Built for Accountants Who Care About the Planet
Everything you need to deliver ESG reporting alongside your existing accounting services.
Xero Integration
One-click connect with automatic data sync. Your transactions flow in effortlessly.
Smart Classification
AI-powered categorisation maps every transaction to the right emission activity.
DEFRA Emission Factors
Always up-to-date UK government conversion factors applied automatically.
Scope 1, 2 & 3
Full greenhouse gas protocol coverage across all emission scopes.
SECR Reports
Generate audit-ready PDF disclosures that meet regulatory standards.
Multi-Org Management
Manage all your clients from a single dashboard. Built for practices.
The Bridge Between Numbers and Nature
Stone translates the language of accounting into the metrics of sustainability. Your financial records become the foundation for meaningful environmental disclosure.
Your Sustainability Command Centre
A clear, intuitive dashboard that turns complex emission data into actionable insights.
Total Emissions
142.8
tCO2e
vs Last Year
-12.3%
reduction
Reports Generated
24
this quarter
Monthly Emissions Breakdown
Simple, Transparent Pricing
Start with a 14-day free trial. No credit card required.
Starter
For solo practitioners getting started with ESG reporting.
- Up to 5 companies
- Xero integration
- Transaction classification
- Basic emission calculations
- SECR report generation
- Email support