AP Recovery Audit

Accounts payable recovery audit without the contingency firm.

We encode your vendor rules — contract rates, fuel surcharges, pass-through terms — into a continuous pre-payment audit that flags overcharges before the money leaves.

  • AI implementation services
  • Continuous pre-payment audit
  • Your exceptions, encoded
  • Fixed fee — no percentage of recovery

Built with the leading AI platforms

NVIDIAAnthropic
Peter Enestrom, founder of Zaigo

Led by Peter Enestrom and the Zaigo AI & engineering team

YaleColumbia UniversityMicrosoft

The broken Friday

The bills keep coming. The rules live in someone’s head.

From AP inboxes we have sat inside: PE-backed services businesses running thousands of vendor invoices a month, with contract rates nobody re-checks.

  • Invoices arrive by email, with no PO behind them

    Vendor bills land in an inbox, get keyed by hand, and routed into an ERP nobody fully trusts. First, someone works out what the bill even is.

  • The duplicate that looks different every time

    Same vendor, same service, new invoice number, slightly different amount. Catching it means remembering every bill you already paid — thousands a month, no two alike.

  • Contract rates nobody re-checks

    The rate sheet says one number, the invoice says another. Case-vs-each pricing, fuel surcharges, fees that appear mid-contract. Somebody has to know the item to catch it.

  • Pass-through charges you eat instead of bill

    Fees recoverable from customers go unapplied because nobody can tie the charge to the contract clause fast enough. The margin leak is quiet, and it compounds.

  • The audit that shows up a year late

    A contingency firm sweeps last year’s payments, takes a percentage of what it recovers, and leaves. Next month the same leaks reopen, because nothing about the process changed.

What manual costs

The leak is a line item, not a feeling.

Reported operating examples show where manual work adds up. Your audit establishes the workload, error rates, and costs in your business.

40–50%Field accuracy of legacy OCR on emailed vendor bills
15,000Unprocessed bills in the backlog of one PE-backed broker
130People reconciling invoices by hand at one AP organization

From anonymized engagements — waste services, healthcare supply, distribution

How it works

We encode your exceptions.

No new system for your team to learn. The rules your best AP person carries in their head become the audit.

  1. 01

    Map the rules

    We write down every rule a bill gets judged by: contract rates, surcharge tables, unit-of-measure quirks, expiring credits. Tribal knowledge becomes a rule set — yours to keep.

    Weeks 1–2
  2. 02

    Encode the audit

    Build checks against the available invoice data and agreed rules, then test coverage and exception handling with your team. Required payment approvals remain part of the workflow.

    Weeks 3–8
  3. 03

    Run it every week

    Run checks on an agreed cadence and report potential overcharges and price changes for review. Coverage depends on timely invoice data, current contract terms, and the rules validated with your team.

    Ongoing
Not another tool

Review past payments and build recurring checks.

Contingency recovery firms audit twelve months of payments, take a percentage of what they claw back, and leave the process exactly as they found it. The leaks reopen before their invoice arrives.

We can build checks around your vendor rules and connect them to the AP workflow you use. The scope defines invoice coverage, exception routing, and review requirements.

Peter Enestrom, founder of Zaigo
Who builds it

Led by Peter Enestrom.

Co-Founder — leads AI & Engineering

Pete Enestrom

Every engagement is led personally by Pete, working with the Zaigo AI & engineering team from the two-week audit through the production handover. The person who scopes the work is the person who builds it.

Education
Yale & ColumbiaGraduate
Background
Microsoft & IntelFormer
Experience
Exited FounderVenture-Backed

Background

Questions

Asked by controllers and CFOs.

The straight answers, before you book anything.

What’s holding your business back?

A workflow ready for automation. An AI product you want to build. A problem that has sat on the roadmap for years. Let’s talk about what it would take to solve it.

Talk to Zaigo