Company lists · Data refreshed September 2026

Top 25 Invoice auditing services based in the United States

RevenueBase identified 76 company matches for invoice auditing services associated with the United States as of September 2026 and tracks 732 professional contacts across them, including 266 with verified work emails. Houston is the largest hub.

This list covers company matches for invoice auditing services associated with the United States, 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 September 21, 2026.

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 Sep 21, 2026 How this list was built
76Companies
732Contacts tracked
266Verified emails
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The 25 largest invoice auditing services based in the United States

Ranked by team size
Top 25 of 76 company matches for invoice auditing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchOak Brook, IL, United StatesHQ recorded Sep 21, 202651-200103 contacts →

Exact match

“ConData is the leading freight & parcel audit recovery services provider in the world.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchOrlando, FL, United StatesHQ recorded Sep 21, 202651-20081 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 · Sep 21, 2026 · View company records in RevenueBase
3Exact matchBoulder, United StatesHQ recorded Sep 21, 202651-20062 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 · Sep 21, 2026 · View company records in RevenueBase
4Exact matchNorth Little Rock, AR, United StatesHQ recorded Sep 21, 202611-5035 contacts →

Exact match

“The Home of Smart Auditing® and the nation’s leading provider of expert-based freight auditing services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchIrvine, CA, United StatesHQ recorded Sep 21, 202611-5032 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 · Sep 21, 2026 · View company records in RevenueBase
6Exact matchSouthampton, NY, United StatesHQ recorded Sep 21, 202611-5027 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchDover, DE, United StatesHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“LegalBillReview.com provides comprehensive legal bill review services for corporate legal teams aimed at identifying and correcting billing errors, along with non-compliant…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchWestlake, OH, United StatesHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“Rooted in family values, we specialize in tailoring freight bill auditing and payment solutions to meet the unique needs of each client.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchGlenelg, MD, United StatesHQ recorded Sep 21, 202611-5019 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchGreenwood, IN, United StatesHQ recorded Sep 21, 202611-5017 contacts →

Exact match

“Telecommunications providers often overcharge and under-deliver.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchCharleston, SC, United StatesHQ recorded Sep 21, 202611-5013 contacts →

Exact match

“No Work.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchPetoskey, MI, United StatesHQ recorded Sep 21, 202611-5012 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 · Sep 21, 2026 · View company records in RevenueBase
13Exact matchSouth Jordan, UT, United StatesHQ recorded Sep 21, 202611-5010 contacts →

Exact match

“Discovery Energy is a Utility Bill Audit Company that helps businesses pay less for the energy they use.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchMonroe, CT, United StatesHQ recorded Sep 21, 20261-109 contacts →

Exact match

“National Auditing Services & Consulting help's businesses reduce one of their top overhead business expense, one that is unavoidable and is a must in order to run a business -…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchSkokie, IL, United StatesHQ recorded Sep 21, 202611-507 contacts →

Exact match

“We sweat the small stuff, so you don’t have to.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchRocklin, CA, United StatesHQ recorded Sep 21, 202611-507 contacts →

Exact match

“ComAudit Services has been providing Telecom Audits to companies for over 15 years.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchItasca, IL, United StatesHQ recorded Sep 21, 202611-505 contacts →

Exact match

“CPAudits, a Brown & Joseph company, provides premium audit services to the insurance industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchGreenville, SC, United StatesHQ recorded Sep 21, 202611-505 contacts →

Exact match

“Intune Logistics is a freight invoice audit and transportation expense management solution company located at Greenville,SC.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchGouldsboro, PA, United StatesHQ recorded Sep 21, 20261-104 contacts →

Exact match

“Full-service lease negotiation Allow us to take care of the negotiation process from securing vehicle specifications ideal for your business to contract concessions, better…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Sep 21, 20261-104 contacts →

Exact match

“Your vendors work diligently to ensure you adhere to the contract, shouldn’t you?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchUnionville, PA, United StatesHQ recorded Sep 21, 202611-503 contacts →

Exact match

“Recovery Audit Solutions, Inc.(RASI) provides a broad range of payment integrity auditing services to every facet of the healthcare industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchSeattle, WA, United StatesHQ recorded Sep 21, 20261-103 contacts →

Exact match

“We help companies manage legal cost, identify improper billing practices and transform their billing processes.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchMiami, FL, United StatesHQ recorded Sep 21, 202611-503 contacts →

Exact match

“U-Tel Auditors is a professional auditing corporation specializing in bill reduction and cost management.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchSt. Petersburg, FL, United StatesHQ recorded Sep 21, 202611-503 contacts →

Exact match

“National Bill Audit Services, LLC is an independent medical bill auditing firm specializing in the commercial payor market.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchWinter Park, FL, United StatesHQ recorded Sep 21, 20261-102 contacts →

Exact match

“S2K Consulting is your team of Telecom Bill Auditing Experts.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 76 invoice auditing services based in the United States

See the full list, filter by size, metro and specialty, and access 266 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Invoice auditing services based in the United States at a glance

As of Sep 21, 2026
36.3%Verified-email coverage
9.6Average contacts per company
1-10Median size (employees)
3.9%Largest-city concentration · Houston
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
31
51-200
3
201-500
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 76 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “invoice auditing 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 266 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 September 21, 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.

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 auditing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many invoice auditing services are there based in the United States?

RevenueBase identified 76 company matches for invoice auditing services associated with the United States as of September 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?

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

Which city has the most invoice auditing services?

Houston leads with 3 company records, followed by Miami (3) and America (1).

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 266 professional contacts with verified work emails tracked across these 76 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 September 21, 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.