Map the chain
Create an organisation-wide supplier map, link parent and child entries, and record route split values where known.
Free diagnostic tool for temporary labour-chain evidence
Map your temporary labour chain and see where evidence is being lost.
Supplylines helps contractors and labour-chain buyers map supplier relationships, route values, fair-work evidence gaps and indicative route-exposure values without collecting worker personal data.
Diagnostic only. Not legal, tax, employment, procurement, ESG assurance, financial, insurance or investment advice.
Labour-chain snapshot
Example
Contractor / buyer
Top of chain
Agency supplier
Route split entered
Agency PAYE
£250k
Umbrella PAYE
£500k
Unknown / mixed
£100k
Evidence score
22.5%
Evidence gap
77.5%
Mapped value
£850k
What Supplylines does
A calm diagnostic view of labour-chain evidence.
Identify evidence gaps
Answer practical fair-work and ESG evidence questions to see where proof is strong, partial, weak or unknown.
Generate a report
Produce a saved diagnostic report showing route opacity, evidence score, indicative values and key findings.
Reports
Built to support internal conversations.
Reports are designed to help social value, ESG, procurement, risk, tax, finance and commercial teams discuss the same labour-chain evidence picture.
Current fair-work evidence score
Evidence gap and priority findings
Route opacity and indicative exposure values
Project attribution limitations
Controlled PAYE comparison scenario
Print-ready report for internal review
Start with one supplier-flow map.
You do not need perfect project-level data to begin. Missing attribution is treated as a diagnostic finding, not a blocker.