Supplier ESG risk platform or supplier emissions data: which does your brief need?

Procurement wants one supplier record. Supplier risk platforms offer one, and most now list emissions among the things they cover. Whether that covers your brief depends on what the brief ends with: a score you triage against, or a number that goes into a GHG inventory and gets sampled by an auditor. Those are different products, and this piece is about telling them apart.

What does a supplier ESG risk platform produce?

A supplier ESG risk platform produces a risk score per supplier. It reads what the supplier has published and what third-party registries hold, sends a questionnaire for what it cannot find, and returns a profile: whether a certification exists, whether a target has been set, whether adverse news has appeared, how the supplier maps against the regulations the buyer has to report under. Human rights, forced labour, deforestation, cyber and financial health sit alongside climate as parameters, and the output is a scorecard that tells procurement who to look at next.

On emissions, a risk platform finds high-level emissions data: a headline figure where a supplier has published one, a target, a certification. That is a guide for procurement, and a useful one for deciding who to talk to. It is not an inventory line. Nothing is calculated, nothing is allocated to what you buy from that supplier, and where the supplier has published nothing there is nothing to guide with.

What does supplier emissions data produce?

Supplier emissions data produces a figure per supplier, calculated where the supplier has not published one, with the source and the method recorded against every line. DitchCarbon provides verified emissions data for over 2 million organisations, so procurement, sustainability and finance teams can measure and act on supply chain and portfolio emissions from one source.

What that holds has three layers. Company emissions data for over 2 million organisations, including corporate-level GHG inventories, each figure deep-linked to the page of the source document it came from with its assurance level and change history. Supplier-specific emissions at spend, activity and product level, so the same supplier can carry a spend-allocated figure, an activity-based figure and a product carbon footprint depending on what you buy from them. And a generic emission factor library drawn from ecoinvent, CEDA, EPA, DEFRA and EXIOBASE, which closes the rest of the inventory where nothing better exists, with the gap shown rather than hidden.

The difference from a risk score is the difference between knowing a supplier has a target and knowing their emissions per unit of revenue for each of the last ten years. The first tells you where to look. The second is a number a finance team can add up.

Do you need a separate carbon tool if you already run a supplier risk platform?

It depends on what the emissions number has to do. If the brief is due diligence, CSDDD, LkSG or EUDR across a supplier base, with climate as one parameter among many, a supplier risk platform is built for that and a specialist emissions tool is not. If the brief includes a Category 1 figure in the GHG inventory, a target the board has signed, or a reduction plan with tonnes against it, then yes, because a risk score cannot go into an inventory and a risk platform's emissions data is a high-level guide rather than a calculated line.

The two are not in competition for the same job, which is why they coexist well. Where a team already runs a supplier risk platform for human rights and compliance, the emissions figure feeds it: DitchCarbon integrates with SAP Ariba Risk, SAP 360, HICX, SpendHQ and TraceGains, exports thirteen datasets, and publishes its API, so the risk platform keeps the supplier record and the emissions column on it comes from a source that calculated the number. The risk team keeps its tool. The sustainability team gets a figure it can defend. Neither stack changes.

How do you tell which brief you have?

Three questions settle it, and any yes puts you in the emissions data brief.

Does the number go into a GHG inventory that an auditor will sample? An auditor samples figures back to their source. A score has no source document to sample; a calculated figure has the report page it came from, or the factor and the spend line that produced it.

Does a target depend on it? A board-signed Scope 3 target is a commitment to move a number. It needs a baseline year, a figure per supplier that can be restated when the supplier restates, and a forecast against the target trajectory. A risk score does not move in tonnes.

Do you need a figure for suppliers who have published nothing? On a typical Category 1 list most of the tail has never published an emissions figure. A risk platform records the gap or sends a questionnaire. An emissions tool calculates the line and shows which method produced it.

If all three answers are no, the brief is risk, and the risk platform is the right buy.

What happens when a supplier has published nothing?

This is where the two categories separate most sharply, because the long tail is where most of a Category 1 list sits. A risk platform, having read the public record and found no emissions figure, either leaves the field empty or asks the supplier. Coverage of the emissions number is then bounded by the response rate.

DitchCarbon calculates it. Each organisation records which of four methods produced its figure, in a fixed order: the organisation's own reported data first, product data from a published carbon footprint second, activity data from what was actually consumed third, and industry data fourth of four, used only where the first three could not be found or captured. The emission factor method is a filterable column on every organisation, and the headline toggles between organisation-specific and industry factors, so the share of a baseline still resting on a generic factor is a number you can read rather than a claim you have to make. A recent deployment reached about 60% of a large supplier base within 2 weeks.

Where a figure does need improving, the request goes out prepopulated from what that organisation has already published, targeted by a four-step maturity ladder sorted against embodied emissions, so a large non-discloser surfaces first and a small supplier that already reports is left alone. The wider case for starting from data rather than from a survey is in Supplier surveys vs data-first: which fills your Scope 3 gap faster?

What does an emissions tool do once the baseline exists?

A risk platform's output after the read is the same as before it: a score, tracked before and after engagement. An emissions tool has more to do, because a figure supports operations a score cannot. DitchCarbon forecasts each organisation's actuals to 2050 against the trajectory its own target requires, with a reliability notice where the disclosure is patchy. A targets register flags SBTi-validated targets separately from self-declared ones, and climate goals are tracked as behind, at risk or on track. Reduction recommendations are ranked per organisation and category by the tonnes acting on each would move, with a named peer already reducing at that rate. The 0 to 100 score shows every criterion, weight and source, so filtering to unearned criteria turns a scorecard into an engagement list.

Forecasting is projection rather than measurement, and the ISO 14064-3 verification of the DitchCarbon calculator does not extend to it; the reliability notice says so where the forecast appears. A tool that tells you which of its numbers are projections is easier to defend than one that never does.

Where does the verification sit?

A supplier risk platform is typically certified to ISO 27001 for information security. That says the data was stored safely. It says nothing about how a number was produced. The DitchCarbon calculator is verified to ISO 14064-3, limited assurance, by UL Solutions, renewed annually, and DitchCarbon was the first company to earn UL Solutions' Sustainability Information Calculator Verification, in June 2025. The emission factor methodology was independently assessed by Globus Thenken in August 2025. DitchCarbon is the only specialist Scope 3 tool with third-party assurance of its calculation methodology; the working across the market is in Who's really verified? A reality check on carbon software assurance, and the documents are downloadable from the trust centre.

What if you are the supplier being asked?

Many readers of a page like this are on both sides: measuring their own suppliers while a customer asks them for the same data through a risk platform's questionnaire. Your DitchCarbon profile already exists and already carries your published reports, listed by year with the assurance status found for each scope. Claiming it lets you correct what is held, add reports in any format, and answer the questions buyers ask most often once, so any logged-in viewer reads the same answer rather than emailing you for it. It is free. Claim your profile.

Which do you buy?

Buy the risk platform for the risk brief. Buy the emissions data for the inventory, the target and the plan. Where you hold both briefs, run both, with the emissions figure feeding the supplier record rather than being typed into it from a questionnaire. For a worked example of how a risk platform and a specialist emissions tool compare on what each read produces, see the comparison of a risk profile against an emissions figure, and for why the axis is generic against supplier-specific rather than spend against activity, see Spend-based or supplier-specific? Your Scope 3 number is probably both.

To see which brief your own list falls into, send a sample of your suppliers to the coverage check and you get back what already exists for each organisation, the source behind every figure, and the gaps marked rather than filled in quietly. Numbers you can defend within 2 weeks.

Last reviewed September 2026.