Sustainability evidence with full provenance
TSK extracts the numbers your buyers and auditors ask for from the documents you already have — every value traced back to the source page, with full edit history.
What TSK solves for sustainability leads
Time spent re-answering the same questionnaires
Hours filling in CDP, EcoVadis, and one-off buyer asks — often the same numbers, asked five different ways. TSK extracts once, reuses everywhere.
Numbers you cannot fully defend
When a buyer or auditor asks "where did that come from?", the answer should be one click — to the exact PDF page. TSK keeps that link end-to-end.
Audit-trail rigour buyers increasingly demand
Edit history, source attribution, GHG Protocol scope discipline — the things a Big-4 reviewer will check. Built in, not bolted on.
How it works
Upload a utility bill or sustainability document. TSK extracts every quantitative value, ties it to the source PDF page, applies the relevant emission factor with a documented standard reference, and surfaces the result with confidence indicators. When the document is ambiguous, TSK says so — no silent guessing.
A full methodology write-up — extraction logic, emission factor sources, GHG Protocol scope rules, chain of custody — read the methodology.
Methodology details at /methodology.
Try TSK with our test documents
Five synthetic UK supplier documents, ready to download. Run them through TSK and see provenance for yourself — no signup needed to look at the docs.
Request access
We are onboarding launch testers one at a time so each gets a real walkthrough. Tell us a little about you.