Carbon Data You Can Explain and Defend
When procurement teams, auditors, or corporate buyers ask how you calculated your emissions, you need more than a number. Our methodology produces structured, documented carbon data that stands up to scrutiny.
Data Sources
We extract structured data from 20+ accounting platforms
Our Approach
From Your Records to Defensible Data
A structured methodology that produces carbon data you can confidently share with clients, procurement teams, and auditors
Documented Data Sources
Structured data collection from your existing records
We connect directly to your accounting software to extract reconciled financial data. Every data point is traceable to its source, creating a clear audit trail from the start.
For SMEs with incomplete records, we identify gaps upfront and apply documented assumptions based on industry benchmarks and GHG Protocol guidance. Nothing is hidden or unexplained.

Spend-Based Method
Transparent calculation with explainable methodology
We use spend-based emission factors from UK Government DESNZ data to convert your financial records into carbon equivalents. Every calculation step is recorded and explainable.
When clients or auditors ask how you arrived at a figure, you will have a clear answer. Our methodology documentation shows exactly which emission factors were applied and why. For teams integrating via the API, our Categorisation API can automate spend classification with confidence scoring and human review flags, so raw financial data is mapped to defensible emissions without manual category mapping.

Enhanced Defensibility
Activity-based precision where it matters most
For material emission sources like energy and transport, we collect activity data directly. This provides higher precision where it makes the biggest difference to your footprint.
The hybrid approach balances practicality with defensibility. Spend-based methods cover broad categories efficiently, while activity-based methods deliver traceable precision for your largest emission sources.

Standards Alignment
Built for External Review
Our methodology aligns with the frameworks that procurement teams and auditors expect to see
Why standards matter for SME suppliers
When you respond to a tender or supplier questionnaire, procurement teams often require emissions data calculated according to recognised standards. Compliance is not just about the numbers. It signals credibility and reduces due diligence friction. Our reports include methodology statements that explicitly reference the standards we follow, giving your clients the assurance they need.
Pragmatic Approach
We Work With the Data You Have
Most SMEs do not have perfect records. Our methodology is designed to handle real-world data while maintaining defensibility.
Documented Assumptions
When data is missing or incomplete, we apply conservative assumptions based on industry benchmarks and GHG Protocol guidance. Every assumption is recorded in your report with a clear rationale.
Explore the emission factors we use
- Gaps identified and explained
- Conservative estimates applied
- Rationale recorded for auditors
Improving Over Time
Your first report may rely more heavily on estimates. As you improve your data collection, future reports become more precise. The methodology tracks this progression transparently.
- Data quality scoring
- Year-on-year comparison
- Improvement recommendations
Start Building Credibility
Ready for carbon data you can defend?
Join SME suppliers building credibility with audit-ready emissions reporting.
Curious how your current evidence stacks up? Run a free sustainability authority scan.