One model. Every standard. Verified.
CarbonSig is where you build a product carbon footprint from real production data, calculate it to any standard, and get it verified — without starting over each time.
- One model, every standard
- Third-party verified in-platform
How does CarbonSig calculate a product carbon footprint?
CarbonSig calculates a product carbon footprint in four steps, in the app’s own vocabulary. You build the product as a connected system model in the System Builder — inputs, processes, direct emissions and outputs, each tagged to a scope. You attach emission factors from the Reference Emission Data Library and the Emission Data Marketplace (Ecoinvent, IPCC, US EPA, EPD International — 40,000+ factors), with AI suggesting matches you review and approve. Analyze computes the result — Net Emission = Sources − Sinks − Credits. Then you register the model and an independent third party verifies it inside the platform, through to “Verified on CarbonSig.”
From production data to a verified footprint.
One connected journey — you never start over between standards, and verification happens in the same place you built the model.
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Build
Model your product in the System Builder — or let Build with AI draft it in 30–60 seconds, then refine.
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Analyze
Compute the footprint — Net Emission = Sources − Sinks − Credits — and trace hotspots in Sankey and Bar Chart.
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Report
A System Status Report rates documentation readiness and names the gaps to close before handoff.
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Register
Register the model to a locked, read-only copy and issue a Carbon Receipt you can share or transfer.
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Verify
An independent third party reviews it round by round in the Verifier Hub — through to “Verified on CarbonSig.”
Bring in data from any source.
Connect plant and supplier data, and fill the gaps from a built-in library. Every input carries an emission factor — matched by AI, reviewed and approved by you.
- 40,000+ emission factors — the Reference Emission Data Library plus the Emission Data Marketplace: Ecoinvent, IPCC, US EPA, EPD International.
- AI-suggested factors you review — up to three ranked matches with a confidence rating and a “Why This EF?” explanation for the audit trail.
- Supplier data, not estimates — pull a supplier’s Carbon Receipt (CAP) straight in, carrying its own status: self-attested, or verified where a third party has reviewed it.
See the number — and where it comes from.
Analyze turns your model into a result you can defend: one net figure, and the hotspots behind it.
- One clear result — Net Emission = Sources − Sinks − Credits, in your product’s own unit.
- Hotspot analysis — Sankey and Bar Chart views rank contributors so you know where to act first.
- System Status Report — an AI readiness report scores documentation completeness and names every gap to close.
Turn a model into a trusted result.
Register a finished model to a locked, read-only copy, then issue a Carbon Receipt — a Carbon Attested Product you can share or transfer.
- Register & lock — a registered model is an immutable copy, so what a verifier and a customer see can’t shift underneath them.
- Issue a Carbon Receipt — share it privately, publicly, or to named recipients, and manage everything in your CAP inventory.
- Transfer down the chain — send a Carbon Receipt to a customer and it becomes an input in their own model, carrying the status it was issued with.
Verification isn’t a bolt-on. It’s in the tool.
Verifier accounts, findings pinned to the exact node, formal opinions and round-based revision all happen inside CarbonSig — so your data stays traceable from source to certificate, and your claim survives scrutiny.
CarbonSig verification workspace at carbonsig.app. An illustrative steel billet product carbon footprint is under third-party review — round 1, under verification. The system model has five nodes: Iron ore (input, Scope 3, reviewed); Grid electricity (input, Scope 2, incomplete — currently selected); Blast furnace (process, draft); Direct emissions (Scope 1, draft); and Steel billet (output, reviewed, 1.9 kg CO₂e per kg, ISO 14067). One finding is open, pinned to Grid electricity: requirement ISO 14067 data quality — “Activity-data source for grid electricity needs a reference — please attach meter data,” raised by the lead verifier. Verification lifecycle: Self attested, Pending verification, Under verification (current), Revisions requested, Verified on CarbonSig. Verification partner: Bureau Veritas. Implementation partner: Kabyax.
Manage carbon the way you manage cost.
Product insights & hotspot analysis
See where carbon intensity is highest across processes and suppliers.
Modelling & scenarios
Test changes and plan reductions before you commit.
Sharing & reporting
Share results with stakeholders; keep reporting consistent.
Roles & collaboration
Permissions, comments and a viewer role for the whole team.
See the platform on your own products.
Book a demo — we’ll show you how CarbonSig would model and verify your carbon.