We use analytics to improve the site

    We use analytics to understand what's working and where things can be clearer, so we can make the site easier to use for everyone.

    Privacy & cookies
    Skip to main content
    Transparent Methodology

    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

    Xero
    Xero
    Quickbooks
    Quickbooks
    Sage
    Sage
    Zoho
    Zoho

    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

    Step 1

    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.

    Traceable data sources
    Gap identification
    Documented assumptions
    Structured data collection from your existing records
    Step 2

    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.

    DESNZ emission factors
    Calculation audit trail
    Explainable outputs
    Transparent calculation with explainable methodology
    Step 3

    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.

    Material sources prioritised
    Hybrid methodology
    Defensible precision
    Activity-based precision where it matters most

    Standards Alignment

    Built for External Review

    Our methodology aligns with the frameworks that procurement teams and auditors expect to see

    GHG Protocol

    Corporate standard for emissions accounting

    Required by most procurement frameworks and CDP reporting
    Tap for details

    GHG Protocol

    Greenhouse Gas Protocol Corporate Standard

    The global standard for measuring and managing emissions. It defines how to categorise emissions into Scope 1 (direct), Scope 2 (energy), and Scope 3 (supply chain).

    When clients ask for your carbon data, they expect GHG Protocol methodology. It is the common language procurement teams understand.

    Tap to flip back

    ISO 14064-1

    International standard for GHG inventories

    Recognised by auditors and certification bodies
    Tap for details

    ISO 14064-1

    ISO 14064-1:2018 Greenhouse Gas Inventories

    An internationally recognised framework for quantifying and reporting greenhouse gas emissions at the organisation level, with principles for verification.

    Alignment with ISO standards signals rigour and professionalism. Auditors and certification bodies look for this when reviewing your data.

    Tap to flip back

    SECR

    UK Streamlined Energy and Carbon Reporting

    Mandatory for qualifying UK companies, often requested by clients
    Tap for details

    SECR

    Streamlined Energy and Carbon Reporting (UK)

    A UK government framework requiring qualifying companies to report energy use and emissions in their annual reports. Many larger clients follow SECR requirements.

    Even if you are not required to report under SECR, your larger clients may be. Providing SECR-compatible data makes their reporting easier.

    Tap to flip back

    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.

    Your carbon roadmap

    Enter your website and I'll personalise your implementation roadmap in 90 seconds.