BillSight is read-only revenue assurance for 3PL warehouses and fulfillment centers that bill shippers on rate cards. It ingests WMS exports, digitizes contracted cards, re-rates the period, and packages findings into client recovery letters — without rewriting the WMS.
3PL billing leaks in the gap between what the WMS recorded and what the rate card allowed you to charge: storage days, accessorials, receipts, shipments. Spreadsheets catch some of it, months late.
BillSight treats the rate card as the contract and the WMS as evidence. Findings are approved or waived by an analyst; recovery letters go out with the math attached. Contingency during the audit, subscription once the leak is a process.
6 capabilities, each one something you can point at during a security review.
WMS ingest
CSV/XLSX warehouse activity with per-client format profiles.
Rate-card digitization
AI-assisted extraction of contracted cards with human review before they become the source of truth.
Period re-rate
Replay activity against the card; flag underbilled storage, receipts, shipments, and accessorials.
Recovery packages
Client letters and PDFs with approve/waive, send, and paid tracking.
Draft-invoice precheck
Catch leakage on the next invoice before it leaves the building.
Contingency ledger
Accrue audit fees, then graduate the tenant to a subscription.
BillSight, answered
Does BillSight replace the WMS?
No. It is read-only against WMS exports. The warehouse keeps running; billing gets a second set of eyes.
Who is it for?
Warehouse CFOs, billing analysts, and 3PL ops leads who bill shippers on contracted rate cards.
See it against your reality.
A 30-minute walkthrough with an engineer who builds it - your use case, not a script.