One chain of custody, from the floor to the regulator.
Tessera is the proof layer that sits on top of the facility work you already do. Capture in the field, seal it on an immutable ledger, and export a regulator-ready Audit Pack in one click.
Mobile field capture
Technicians tap a task, shoot before/after photos, scan assets, and sign — online or off. Vest-mounted and glove-friendly for cold rooms and cleanrooms.
Tamper-proof Evidence Timeline
Every record is hashed with geo and time and written to an immutable, blockchain-verified ledger. Nothing can be edited after the fact — only appended.
Exception & remediation engine
IoT thresholds and rule sets flag out-of-spec events the moment they happen, attach the right remediation SOP, and route it to the right person.
One-click Audit Packs
Bundle every photo, signature, temperature, and SOP for any window into a sealed, shareable pack for FSMA 204, OSHA, and HACCP.
Integration Hub
Connect WMS, CMMS, sensors, and vendor systems so evidence flows in automatically and stops living in email and spreadsheets.
Cost & ESG analytics
Per-facility cost, vendor performance, and ESG metrics roll up to one auditable ledger you can defend in a QBR.
Billing you can prove — not just bill.
Field-service platforms take you from estimate to work order to invoice. Tessera adds the step they can't: every line is backed by sealed, tamper-proof evidence — so what you invoice per center is exactly what was captured, signed, and verified on the floor.
Estimate
Center managers set service-hour estimates in scheduling.
Per centerWork order
Confirmed shifts roll into a work order per center & period.
Auto-groupedVerify with evidence
Estimated vs actual hours + % of tasks with sealed proof.
Evidence-gatedInvoice + Audit Pack
Bill per center, each line linked to the pack that proves it.
→ NetSuiteEstimate → invoice, end to end
The full financial chain other platforms offer — scheduling estimates, work orders, and per-center invoicing — built in.
Evidence-backed, line by line
You can only invoice what's proven. Each line ties to sealed photos, signatures, and readings on the immutable ledger.
No disputes, faster pay
When the client questions a charge, the proof is one click away — the Audit Pack behind the invoice. Fewer disputes, shorter DSO.
Built to drop into a running facility — not replace it.
Tessera layers proof on top of your existing crews, vendors, and systems. No rip-and-replace, no new hardware to buy.
Connect
Map sites, assets, crews, and SOPs in onboarding.
~3 daysCapture
Crews run normal work through the mobile app.
Day oneProve
Evidence seals to the ledger automatically.
Real timeExport
Audit Pack ready before the inspector arrives.
4.2 min median