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DitchCarbon vs Normative: a comparison for Scope 3 teams
Updated 2 September 2026. This comparison is for teams weighing supplier-specific (primary) emissions data against a spend-based carbon accounting engine. It is factual by design: both products are credible, and the right choice depends on where your programme is.
What is Normative?
Normative is a carbon accounting platform whose engine calculates a footprint across all scopes from spend data, mapping expenditure in your ERP or accounting systems to emission factors, with reporting outputs for frameworks such as CSRD and CDP and tools for requesting primary data from suppliers. If you are evaluating it, Normative's own documentation is the right source for its current capabilities.
What is DitchCarbon?
DitchCarbon provides verified emissions data for over 2 million organisations, built on primary emissions data wherever it exists, so procurement, sustainability and finance teams can measure and act on supply chain and portfolio emissions from one source. It is a specialist Scope 3 carbon accounting platform: the same spend export calculates against organisation-specific figures wherever a company has disclosed, with a source and change history on every figure and coverage gaps shown, not hidden.
How do the two differ?
The honest distinction is what sits behind the Category 1 number. A spend-based engine gives every supplier in a category the same factor, which is fast and legitimate for a first screen but cannot tell two suppliers apart. DitchCarbon is bought to move those lines onto each supplier's own published figures. The full argument on that axis is on our spend-based vs supplier-specific page.
| Feature | DitchCarbon | Normative |
|---|---|---|
| Primary focus | Supplier-specific emissions data for Scope 3, with procurement in the workflow | Carbon accounting across all scopes, with a strong initial focus on spend-based analysis |
| Core methodology | Disclosed, supplier-specific figures first, with generic factors visible where nothing is published | Starts with a spend-based calculation engine, mapping financial data to emission factors |
| Supplier engagement | Requests prepopulated with what each supplier has already published, sent only where they change the inventory | Supplier engagement tools to request primary data and move beyond spend-based estimates |
| Key output | Figures with a source and change history, and the gap ranked for engagement | Compliance reports for frameworks like CSRD and CDP, and a footprint-wide baseline |
| Ideal user | Teams moving their inventory off sector averages line by line | Organisations needing a fast, footprint-wide baseline for initial reporting and hotspot identification |
When is Normative the right choice?
At the start. If this is year one, the job is to locate the hotspots across all fifteen categories, and a spend-based baseline is sufficient for your current disclosures, an engine built for exactly that is a reasonable buy, and the GHG Protocol treats spend-based screening as a legitimate first method.
When is DitchCarbon the right choice?
When the number has to carry more than a first disclosure. If a target, a supplier conversation or an auditor's question is coming, sector averages stop being enough, because they cannot show one supplier improving. DitchCarbon starts from what suppliers have already published, so the disclosed part of a list is matched and scored before anyone is asked anything, and the remaining sector-average lines are visible and become the engagement list.
Can you use both?
Yes. Some teams keep a footprint-wide accounting engine for the full inventory and run DitchCarbon as the data layer that moves Category 1 onto supplier-specific figures. The wider version of that decision is on our specialist vs suite page.
See the comparison on your own list
The fastest test is your own file: send a sample of your supplier list to the coverage check and see how many lines already carry a supplier-specific figure.
Run the test on your own list.
Tell us what you're assessing and we'll show you the coverage we already hold, before you commit to anything.
