Types of freight audit companies
- Parcel-only auditors: strong on UPS, FedEx, and DHL refunds, usually weak on freight modes and payment
- Audit and payment specialists: full cycle from invoice intake to carrier settlement across modes; this is the Gartner category
- 3PL or TMS-embedded audit: convenient if you already use the platform, but the auditor and the party paid for freight are the same company
- Consulting-led audit: strong analysis, often manual, and rarely continuous

