Company lists · Data refreshed November 2026

Top 24 Supplier auditing services based in the United States

RevenueBase identified 276 company matches for supplier auditing services associated with the United States as of November 2026 and tracks 35,648 professional contacts across them, including 10,609 with verified work emails. Houston is the largest hub.

This list covers company matches for supplier 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 November 6, 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 Nov 6, 2026 How this list was built
276Companies
35,648Contacts tracked
10,609Verified emails
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The 24 largest supplier auditing services based in the United States

Ranked by team size
Top 24 of 276 company matches for supplier auditing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchFishers, IN, United StatesHQ recorded Nov 6, 20261,001-5,0001,663 contacts →

Exact match

“Stratosphere Quality, founded in 2009, is a major global provider of quality assurance and outsourcing solutions, such as sorting and inspection services, to manufacturers of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBoxborough, CA, United StatesHQ recorded Nov 6, 2026501-1,000763 contacts →

Exact match

“TÜV Rheinland is a world leader in testing, inspection and certification services for a wide variety of industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchEmeryville, CA, United StatesHQ recorded Nov 6, 2026201-500705 contacts →

Exact match

“Scientific Certification Systems, Inc, now doing business as SCS Global Services, is a trusted leader in third-party environmental, sustainability and food quality certification…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMchenry, IL, United StatesHQ recorded Nov 6, 2026501-1,000219 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAuburn, IN, United StatesHQ recorded Nov 6, 2026201-500139 contacts →

Exact match

“We're there, so our customers don’t have to be.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSouth Bend, IN, United StatesHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Sustained Quality has been a trusted partner in quality since 2007, delivering inspection, sorting, rework/repair, engineering, and containment services to the automotive…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchThe Woodlands, TX, United StatesHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchExton, PA, United StatesHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“Cresen Solutions, founded in 2015, delivers specialized, high-quality services to the life sciences industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWarrendale, PA, United StatesHQ recorded Nov 6, 202611-5083 contacts →

Exact match

“At PRI Certification℠, we're committed to protecting what matters by delivering industry-leading certification services across Quality, Data Security, Environmental, and Health &…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDayton, OH, United StatesHQ recorded Nov 6, 202611-5076 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHendersonville, TN, United StatesHQ recorded Nov 6, 2026201-50067 contacts →

Exact match

“QLS is a third-party quality assurance liaison that works directly with suppliers and manufacturers throughout North America across a broad range of industries including…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBoulder, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
13Exact matchSanta Maria, CA, United StatesHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Overview: Headquartered in Santa Maria, CA, Primus Auditing Ops provides the fresh produce industry with specialized services related to the safe production and handling of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Established in 2014, JKA has solidified its position as a leading US-based service provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDurham, NC, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“Drummond is a leading and trusted compliance, conformance, and standards certification, testing, and validation services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBowling Green, KY, United StatesHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“Cross Check Quality Inspection has over 11 years of experience delivering resources to assist manufacturers/ companies reach their highest standards in product quality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMinneapolis, NJ, United StatesHQ recorded Nov 6, 202611-5038 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMoraine, OH, United StatesHQ recorded Nov 6, 202651-20037 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“International Compliance Group is a privately-held US-based organization focused on social compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHouston, OR, United StatesHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“The ISO 9001 Group is a full-service business and management system consulting, auditing and training firm based in Houston, Texas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“QualityHub is a full-service regulatory, quality, and compliance consultancy for the highly regulated Medical Device, Pharmaceutical, Biologics, and Combination Products…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSalt Lake City, United StatesHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“A GCS Certificadora Brasil é uma empresa do Grupo GCS Certification® que atua no universo das certificações internacionais e possui autonomia para desenvolvimento e atuação em…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchJenison, MI, United StatesHQ recorded Nov 6, 202651-20028 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchConcord, MA, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Since 1986, the Vendor Control Service, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 276 supplier auditing services based in the United States

See the full list, filter by size, metro and specialty, and access 10,609 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Supplier auditing services based in the United States at a glance

As of Nov 6, 2026
29.8%Verified-email coverage
129.2Average contacts per company
1-10Median size (employees)
3.6%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
163
11-50
65
51-200
24
201-500
15
501-1,000
3
1,001-5,000
2
5,001-10,000
1
10001+
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 276 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 “supplier 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 10,609 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 6, 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 “supplier auditing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 276 company matches for supplier auditing services associated with the United States 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?

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

Which city has the most supplier auditing services?

Houston leads with 10 company records, followed by San Diego (7) and Los Angeles (5).

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 10,609 professional contacts with verified work emails tracked across these 276 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 6, 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.