Company lists · Data refreshed October 2026

Top 25 Manufacturing audit firms based in the United States

RevenueBase identified 103 company matches for manufacturing audit firms associated with the United States as of October 2026 and tracks 786 professional contacts across them, including 173 with verified work emails. New York is the largest hub.

This list covers company matches for manufacturing audit firms 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 October 17, 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 Oct 17, 2026 How this list was built
103Companies
786Contacts tracked
173Verified emails
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The 25 largest manufacturing audit firms based in the United States

Ranked by team size
Top 25 of 103 company matches for manufacturing audit firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 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 matchMchenry, IL, United StatesHQ recorded Oct 17, 2026501-1,000208 contacts →

Exact match

“Pro QC International provides tailored quality solutions with a human touch in 100 countries.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2Exact matchDayton, OH, United StatesHQ recorded Oct 17, 202611-5070 contacts →

Exact match

“Since 1994, EAGLE has built an excellent reputation by providing third party auditing services that are objective and value-added.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3Exact matchBoulder, United StatesHQ recorded Oct 17, 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 · Oct 17, 2026 · View company records in RevenueBase
4Exact matchMinneapolis, MN, United StatesHQ recorded Oct 17, 202611-5035 contacts →

Exact match

“Quality Auditing LLC is the industry leader in Quality Management System Auditing & Consulting for clients in highly-regulated industries, including Medical Device…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5Exact matchMoraine, OH, United StatesHQ recorded Oct 17, 202651-20034 contacts →

Exact match

“Supplier Inspection Services, Inc.(SIS, Inc.) is a quality management support services provider that partners with companies worldwide within the Automotive, Aerospace, Appliance…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6Exact matchKansas City, MO, United StatesHQ recorded Oct 17, 202611-5022 contacts →

Exact match

“McBride, Lock & Associates, LLC was formed in 1980.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7Exact matchHolland, MI, United StatesHQ recorded Oct 17, 202611-5020 contacts →

Exact match

“Quality Resource Management, LLC is committed to satisfy our customers' high expectations by providing customized quality control services at a competitive price with a timely…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8Exact matchLos Angeles, CA, United StatesHQ recorded Oct 17, 202611-5010 contacts →

Exact match

“Expert Audit Services has earned a reputation for performing accurate, quality audits on a timely basis to its customers.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9Exact matchCherry Hill, NJ, United StatesHQ recorded Oct 17, 202611-508 contacts →

Exact match

“Holmes & Company, LLC is an accounting and consulting firm certified as an 8(a) Minority Business Enterprise (MBE) and a Small Disadvantaged Business Enterprise (SDBE) based in…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10Exact matchFairfield, NJ, United StatesHQ recorded Oct 17, 20261-107 contacts →

Exact match

“In need of affordable ISO Consulting in the NY Metro Area?”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11Exact matchDearborn, MI, United StatesHQ recorded Oct 17, 202611-506 contacts →

Exact match

“We are a Michigan based third-party quality containment company servicing the manufacturing industry.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12Exact matchNorth Jackson, OH, United StatesHQ recorded Oct 17, 20261-106 contacts →

Exact match

“Providing Quality Services and Consulting to the Manufacturing Industry: For over 20 years, Village Quality Solutions has been providing timely, cost-effective representation…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13Exact matchSouth Easton, MA, United StatesHQ recorded Oct 17, 202611-505 contacts →

Exact match

“Healy & Healy is a consulting firm, providing management consulting services to a variety of clients since 1985.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14Exact matchOshkosh, WI, United StatesHQ recorded Oct 17, 202611-505 contacts →

Exact match

“North Valley Precision was officially launched in 2019 to deliver on our mission to provide performance-driven, accurate on-site inspections, re-work solutions, and overall…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15Exact matchFairfield, NJ, United StatesHQ recorded Oct 17, 20261-105 contacts →

Exact match

“THE KENT GROUP Associates Inc.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16Exact matchHarleysville, PA, United StatesHQ recorded Oct 17, 20261-104 contacts →

Exact match

“Better, quicker, more efficient processes that will keep your quality high, your bottom line profitable and your company compliant.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17Exact matchConcord, NC, United StatesHQ recorded Oct 17, 20261-104 contacts →

Exact match

“A management consulting group designed to support manufacturing clients in consulting, internal auditor training, gap analysis, corrective action resolution, and contracted…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18Exact matchSioux Falls, SD, United StatesHQ recorded Oct 17, 20261-103 contacts →

Exact match

“We offer accurate, professional, and cost-effective auditing and consulting including: Internal Monitoring Policy & Procedures Internal Audits Regulatory Compliance Audits Risk…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19Exact matchLenexa, KS, United StatesHQ recorded Oct 17, 20261-103 contacts →

Exact match

“With a full spectrum of audit and consulting solutions, we support our clients and help them meet the challenges of a ever-changing, complex business environment.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20Exact matchDenver, CO, United StatesHQ recorded Oct 17, 20261-102 contacts →

Exact match

“North Star Audit & Consulting is dedicated to the betterment of Internal Audit departments.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21Exact matchCibolo, TX, United StatesHQ recorded Oct 17, 20261-102 contacts →

Exact match

“With the development and initiation of Medicare's Targeted Probe and Education (TPE) program, Comprehensive Error Rate Testing (CERT) and prepayment reviews, as well as increased…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22Exact matchSt. Paul, MN, United StatesHQ recorded Oct 17, 20261-102 contacts →

Exact match

“SURGENT - Business Quality Consulting and Subcontract Auditing firm focused on helping growing manufacturers and service providers with their business quality systems”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23Exact matchUsa, United StatesHQ recorded Oct 17, 20261-102 contacts →

Exact match

“Consulting, inspection, and audit services for businesses needing preparation, implementation, and/or maintenance of their certification and continuous improvement plans.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24Exact matchCincinnati, OH, United StatesHQ recorded Oct 17, 20261-102 contacts →

Exact match

“Quality Management System consulting and auditing services.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25Exact matchTampa, FL, United StatesHQ recorded Oct 17, 20261-102 contacts →

Exact match

“At Alfa Leap, we are committed to enhancing organizational safety and quality management.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

Showing 25 of 103 manufacturing audit firms based in the United States

See the full list, filter by size, metro and specialty, and access 173 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Manufacturing audit firms based in the United States at a glance

As of Oct 17, 2026
22.0%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · New York
Oct 17, 2026Page data refreshed

Companies by employee count

1-10
75
11-50
18
51-200
6
201-500
3
501-1,000
1

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 103 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 “manufacturing audit firms” 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 173 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 October 17, 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 “manufacturing audit firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many manufacturing audit firms are there based in the United States?

RevenueBase identified 103 company matches for manufacturing audit firms associated with the United States as of October 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?

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

Which city has the most manufacturing audit firms?

New York leads with 3 company records, followed by San Diego (3) and Concord (2).

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 173 professional contacts with verified work emails tracked across these 103 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 October 17, 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.