How to evaluate an enterprise decarbonisation platform

Most Scope 3 platforms can produce a baseline. The harder question for an enterprise buyer is what happens next: whether the platform shows where to act, gives each supplier a plan, and proves the reduction when it lands. The four tests below can each be run on your own purchase data during an evaluation.

What should an enterprise decarbonisation platform do after the baseline?

It should turn the baseline into reductions you can plan, budget and report. Verdantix frames the category this way in its 2026 Green Quadrant: "Carbon management software addresses the need to collect, standardize and analyse emissions data across operations and supply chains." Collection and analysis are the starting point. A decarbonisation platform earns the name in what it does with the analysis: ranking where action moves the footprint, giving suppliers and portfolio companies a route to cut, and showing the cut in your own number.

The measurement checks every vendor passes (data ingestion, GHG Protocol calculations, audit logging, a supplier portal) are covered in what good looks like in carbon management software in 2026. The tests here start where that list stops.

Will a supplier's reduction show up in your footprint?

Only if the line for that supplier is calculated on the supplier's own data. A sector average applied to spend moves when procurement spends less, and stays flat when the supplier cuts its emissions. So the first test is simple: pick a supplier that has published a reduction and ask the vendor to show your footprint for that supplier before and after.

DitchCarbon uses a hybrid calculation for every line: product data, activity data and supplier-specific spend, and only when all else fails, industry-level spend. Each line records which method produced it, so the share of your baseline still on an industry factor is a number you can read. The calculation starts from verified emissions data for over 2 million organisations, built on primary emissions data wherever it exists, so the suppliers that have already published are on their own figures from the start.

The same test covers reporting. Every figure carries its source and change history, so a real reduction can be told apart from a restatement or a change of method. That is what makes the result audit-ready, and the calculator behind it is verified to ISO 14064-3, limited assurance, by UL Solutions. The evidence is on the trust centre.

Does it tell you which suppliers to act on, and what to ask them?

A platform for an enterprise supply chain has to sort thousands of suppliers into a short list of conversations, then give each conversation something concrete to say. Ask the vendor to show three things on a sample of your suppliers:

• A ranked list. Every supplier and category ranked by how much of the total footprint acting on it would move, so the first conversations go where they move the most emissions.
• A plan per supplier. In DitchCarbon each supplier opens into a goal, an action plan drawn from a named peer that has already made the cut, four questions to ask, and a contract clause with a date, a reporting cadence and a shortfall remedy, ready to copy into a meeting deck or an RFP.
• A request the supplier can answer. Requests go out from the platform prepopulated with what the supplier has already disclosed, so the supplier adds only the detail you need: energy data, activity data, a product carbon footprint or a decarbonisation plan. A recent deployment gained additional primary data from 30% of over 40,000 recipients.

Two further questions separate platforms at enterprise scale. First, does the method change between 100 suppliers and 10,000? In DitchCarbon it does not: requests go out from the platform and every reply is read into the same record, and the platform runs in production on supply chains of over 100,000 suppliers. Second, what happens to suppliers already on a credible glide path? The useful answer is to show that path, show how it helps you reach your own target, and leave those suppliers to get on with it.

Can it show progress against your target before the year-end report?

A team that only sees progress once a year cannot ask for budget in time to act on it. To reduce next year, you need to know this year which suppliers to work with and what the work will cost. Test the platform on three points:

• A forecast per organisation. DitchCarbon gives a projection against each organisation's own target trajectory, rolled up to category, portfolio or account level, with scenario planning alongside it.
• Targets kept apart by type. A target register that separates SBTi-validated targets from self-declared ones, with the scope, base year and original wording of each.
• A choice of weighting. SBTi supplier progress weighted by count, by spend or by embodied emissions gives three different answers. The platform should show all three and let you state which one you report.

Where does AI help, and how do you check its output?

Verdantix reports that buyers treat AI as a differentiator when it removes a manual bottleneck, such as emission factor matching or flagging anomalies before an audit. The evaluation question is how each AI output is checked and whether you can trace it back. At DitchCarbon, AI reads what organisations have already published and a team of 15 analysts checks it, and every figure opens to the source document it came from, with the assurance level that document carries.

Ask a vendor to open one AI-produced figure in front of you and show the page it came from. If the platform can do that for any line, you can rely on its progress tracking in a report; if it cannot, the figure is an estimate whatever the interface calls it.

Common questions

What is the difference between a carbon accounting tool and a decarbonisation platform?

A carbon accounting tool measures an inventory and produces a report. A decarbonisation platform uses the same data to rank where action moves the footprint, give each supplier a plan, and track reductions against targets. DitchCarbon is the Scope 3 emissions platform for enterprises and does both for supply chains and portfolios.

How do you check that a platform's Scope 3 data is reliable?

Ask which method produced each line, what share of the baseline still rests on an industry factor, and whether you can open any figure to its source document. Then ask what independent verification covers the calculation. DitchCarbon's calculator is verified to ISO 14064-3, limited assurance, by UL Solutions.

Can one platform cover both supplier engagement and progress tracking?

Yes. In DitchCarbon the ranked list, the supplier plans and requests, the forecast against each organisation's own target trajectory and the SBTi target register sit on the same record, so a supplier's reply or published cut feeds straight into the progress you report.

A baseline earns its cost when it changes what procurement does next. DitchCarbon ranks where action moves your footprint, gives each supplier a plan from a peer that has already cut, and shows the reduction in your own number when it lands.