Company lists · Data refreshed November 2026

Top 25 Invoice audit services worldwide

RevenueBase identified 231 company matches for invoice audit services worldwide as of November 2026 and tracks 2,111 professional contacts across them, including 622 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for invoice audit services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for invoice audit services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
231Companies
2,111Contacts tracked
622Verified emails
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The 25 largest invoice audit services worldwide

Ranked by team size
Top 25 of 231 company matches for invoice audit services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWetherby, United KingdomHQ recorded Nov 5, 202651-200260 contacts →

Exact match

“Audit Partnership is on a mission to help our customers recover lost profits.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchMelbourne, AustraliaHQ recorded Nov 5, 202651-200114 contacts →

Exact match

“Our leading audit recovery services and source-to-pay automation technologies complement your existing ERP system and identify any overcharges and missed income.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchOrlando, FL, United StatesHQ recorded Nov 5, 202651-20090 contacts →

Exact match

“After nearly two decades of auditing large data sets and performing extrapolation for increased ROI for payers, Advize has shifted focus to building relationships with providers…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchRabat, MoroccoHQ recorded Nov 5, 202611-5074 contacts →

Exact match

“Accounting And Financial Audit, Procurement Audit, Accounting And Tax Supervision, Audit According To Agreed Procedures, Tax Audit Supervision and Advisory, Book Keeping…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchMedellín, ColombiaHQ recorded Nov 5, 20261,001-5,00069 contacts →

Exact match

“Somos PRGX Global, Inc.(PRGX), líder global con 50 años de trayectoria en identificación, asesoría y recuperación de sobrepagos a través del análisis de datos s2p con inteligencia…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchBerkeley Lake, GA, United StatesHQ recorded Nov 5, 202651-20068 contacts →

Exact match

“Finding What Others Miss.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchBoulder, United StatesHQ recorded Nov 5, 202651-20063 contacts →

Exact match

“in3corp is a key global provider of supply chain audit, royalty verification programs, cost recovery, avoidance and mitigation; expertly finding transaction errors and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchFreehold, United StatesHQ recorded Nov 5, 202611-5040 contacts →

Exact match

“Wondering if you're leaving money on the table through duplicate payments or billing errors?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchIrvine, CA, United StatesHQ recorded Nov 5, 202611-5038 contacts →

Exact match

“Emendate is Leading Freight Invoice Verification and Payment Company with its presence all over the globe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchUnited StatesHQ recorded Nov 5, 2026n/a33 contacts →

Exact match

“Accurate Billing Investigators is a specialized healthcare billing and compliance firm focused on forensic medical billing reviews, payment integrity investigations, and revenue…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSouthampton, NY, United StatesHQ recorded Nov 5, 202611-5032 contacts →

Exact match

“UtiliSave has recovered $700M+ in verified utility billing overcharges since 1991.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchVilleneuve D'ascq, FranceHQ recorded Nov 5, 202611-5032 contacts →

Exact match

“Pay-Back Group est une société indépendante fondée en 1996.Cabinet d'audit spécialisé dans l'audit transactionnel et dans l'audit contractuel.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchDover, PA, United StatesHQ recorded Nov 5, 202611-5031 contacts →

Exact match

“LegalBillReview.com identifies and corrects billing errors and non-compliant charges on outside counsel bills for corporate legal departments, using a team of US-based licensed…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchRibeirão Preto, BrazilHQ recorded Nov 5, 202611-5031 contacts →

Exact match

“TAX PANEL ofecere the provision of Advance Digital Audit in order to guarantee and ensure the closure of the information within the context of accounting and tax, before data are…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchTournai, BelgiumHQ recorded Nov 5, 20261-1028 contacts →

Exact match

“Audit, réviseur d’entreprises.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchGlenelg, MD, United StatesHQ recorded Nov 5, 202611-5022 contacts →

Exact match

“We are audit experts in both the enterprise and carrier wholesale markets.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBuffalo, NY, United StatesHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“Headquartered in Buffalo, N.Y, Troy & Banks helps clients recover refunds for billing errors that may have happened in the past and make sure that those errors do not reoccur in…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchO'fallon, United StatesHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“weAudit.com is an independent auditing and management firm dedicated to protecting the interests of merchants.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchUnited StatesHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“Comprehensive audit/review of patient accounts in order to identify and collect on any improperly underpaid and/or erroneously discounted claims Monthly reports on network and/or…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchCharleston, SC, United StatesHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“No Work.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchGreenwood, IN, United StatesHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Telecommunications providers often overcharge and under-deliver.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchFoothill Ranch, CA, United StatesHQ recorded Nov 5, 202651-20015 contacts →

Exact match

“Occupancy Cost Audit Group, Inc.(OAG) provides a specialized audit recovery services to uncover hidden occupancy costs overcharges.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchPetoskey, MI, United StatesHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“Tenurgy is a Michigan-based telecom and utility expense management firm with the ability to audit nationwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchKelowna, BC, CanadaHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“Since 2016, RefundPros has helped ecommerce businesses recover revenue they didn’t even know was missing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchUnited StatesHQ recorded Nov 5, 20261-1014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 231 invoice audit services worldwide

See the full list, filter by size, metro and specialty, and access 622 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Invoice audit services worldwide at a glance

As of Nov 5, 2026
29.5%Verified-email coverage
9.1Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
151
11-50
59
51-200
12
201-500
2
501-1,000
2
1,001-5,000
2

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for invoice audit services are linked below.
What qualifies
Company records worldwide whose business descriptions match “invoice audit services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 622 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Invoice audit services by location

1 lists · largest first

Every Invoice audit services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “invoice audit services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many invoice audit services are there worldwide?

RevenueBase identified 231 company matches for invoice audit services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Audit Partnership tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most invoice audit services?

The United States leads with 80 companies. Every invoice audit services list by country and city is linked on this page.

Which city has the most invoice audit services?

London leads with 5 company records, followed by Miami (4) and Houston (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 622 professional contacts with verified work emails tracked across these 231 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.