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 its source page, or shown as a calculation with its working, or explicitly marked as your own statement. Nothing is invented.

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

Source attribution to the exact page, GHG Protocol scope tagging, and a no-fabrication rule: nothing is invented, and anything we cannot evidence is flagged for review. Built in, not bolted on.

How it works

Upload a UK utility bill. TSK extracts the quantitative values it recognises, ties each 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.

TSK links recognised figures to your source documents. Review the figures and their evidence before sharing your results.

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.

TSK — Sustainability evidence with full provenance