Company lists · Data refreshed September 2026

Top 25 Pharmaceutical auditing firms based in the United States

Name: Pharmaceutical auditing firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 546 companies tracked

RevenueBase identified 546 pharmaceutical auditing firms headquartered in the United States as of September 2026 and tracks 7,204 professional contacts across them, including 3,077 with verified work emails. San Diego is the largest hub.

This list covers pharmaceutical auditing firms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

546Companies

7,204Contacts tracked

3,077Verified emails

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The 25 largest pharmaceutical auditing firms based in the United States

Ranked by team size

Top 25 of 546 pharmaceutical auditing firms based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical auditing firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bioagilytix	Partial evidence	Durham, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	915 contacts →
	Partial evidence “BioAgilytix is a leading global contract research organization focused on supporting pharmaceutical and biotech partners in all phases of drug development.” Source: RevenueBase Database · checked Sep 17, 2026
2	QPS Holdings, LLC	Indirect evidence	Newark, DE, United StatesHQ checked Sep 17, 2026	1,001-5,000	592 contacts →
	Indirect evidence “QPS is a GLP/GCP-compliant contract research organization (CRO) delivering the highest grade of discovery, preclinical, and clinical drug development services.” Source: RevenueBase Database · checked Sep 17, 2026
3	ARL BIO Pharma	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 17, 2026	201-500	286 contacts →
	Partial evidence “ARL Bio Pharma is a contract laboratory that provides analytical and microbiological testing for the pharmaceutical industry.” Source: RevenueBase Database · checked Sep 17, 2026
4	Valsource INC	Partial evidence	Downingtown, PA, United StatesHQ checked Sep 17, 2026	201-500	245 contacts →
	Partial evidence “Since 1996, ValSource has worked with hundreds of pharmaceutical, biopharma, and medical device organizations around the world.” Source: RevenueBase Database · checked Sep 17, 2026
5	PRO QC International	Indirect evidence	Mchenry, IL, United StatesHQ checked Sep 17, 2026	501-1,000	211 contacts →
	Indirect evidence “Pro QC International provides tailored quality solutions with a human touch in 100 countries.” Source: RevenueBase Database · checked Sep 17, 2026
6	Lachman Consultant Services	Indirect evidence	Westbury, NY, United StatesHQ checked Sep 17, 2026	51-200	179 contacts →
	Indirect evidence “Quality & Compliance \| Regulatory Strategy \| Inspection Readiness & Remediation \| Data Integrity.” Source: RevenueBase Database · checked Sep 17, 2026
7	Norwich Pharma Services	Partial evidence	Norwich, NY, United StatesHQ checked Sep 17, 2026	201-500	174 contacts →
	Partial evidence “Norwich is a leading provider of contract manufacturing and clinical services for the pharmaceuticals industry.” Source: RevenueBase Database · checked Sep 17, 2026
8	MMR Consulting	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 17, 2026	51-200	124 contacts →
	Indirect evidence “MMR Consulting Inc.” Source: RevenueBase Database · checked Sep 17, 2026
9	Xogene	Indirect evidence	Englewood, NJ, United StatesHQ checked Sep 17, 2026	51-200	113 contacts →
	Indirect evidence “Offering flexibility, in-depth regulatory knowledge, and technical expertise in the area of Transparency and Clinical Trial disclosure, Xogene offers quality outsourcing of…” Source: RevenueBase Database · checked Sep 17, 2026
10	Masuu Global Solutions	Indirect evidence	Miami, FL, United StatesHQ checked Sep 17, 2026	201-500	106 contacts →
	Indirect evidence “Masuu with over 280 Subject Matter Experts (SMEs) and a leadership/scientific advisory team featuring former personnel from health authorities like the USFDA, EMA, MHRA, ANVISA…” Source: RevenueBase Database · checked Sep 17, 2026
11	MRC Medical Research Consultants	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	104 contacts →
	Partial evidence “Medical Research Consultants (MRC) specializes in Record Retrieval & Management, Nurse Audits & Analysis, and Regulatory Compliance services to Legal, Pharmaceutical, Healthcare &…” Source: RevenueBase Database · checked Sep 17, 2026
12	NSF	Partial evidence	Ann Arbor, MI, United StatesHQ checked Sep 17, 2026	5,001-10,000	101 contacts →
	Partial evidence “NSF works with pharmaceutical, medical devices, and in vitro diagnostic companies, large and small, to provide highly customized end-to-end services throughout the product…” Source: RevenueBase Database · checked Sep 17, 2026
13	Wellpartner, INC	Indirect evidence	Tualatin, OR, United StatesHQ checked Sep 17, 2026	51-200	91 contacts →
	Indirect evidence “Wellpartner® helps Covered Entities stay ahead of 340B Program changes and avoid disruption.” Source: RevenueBase Database · checked Sep 17, 2026
14	Eurofins Infinity Laboratory Group, INC	Indirect evidence	Lancaster, CO, United StatesHQ checked Sep 17, 2026	51-200	86 contacts →
	Indirect evidence “Infinity Laboratories, now part of Eurofins network of laboratories, is a leading contract testing organization with a national network of state-of-the-art facilities, ensuring…” Source: RevenueBase Database · checked Sep 17, 2026
15	Cgmp Validation LLC	Partial evidence	Shawnee, KS, United StatesHQ checked Sep 17, 2026	51-200	84 contacts →
	Partial evidence “cGMP Validation was established in 1997 as a full service validation/compliance firm offering services for the pharmaceutical, bulk pharmaceutical, animal health, biotechnology…” Source: RevenueBase Database · checked Sep 17, 2026
16	Advize	Partial evidence	Orlando, FL, United StatesHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
17	Eagle Certification Group	Partial evidence	Dayton, OH, United StatesHQ checked Sep 17, 2026	11-50	80 contacts →
	Partial evidence “Since 1994, EAGLE has built an excellent reputation by providing third party auditing services that are objective and value-added.” Source: RevenueBase Database · checked Sep 17, 2026
18	Scendea	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	76 contacts →
	Partial evidence “Scendea is an international product development, regulatory, and compliance consulting group serving the pharmaceutical and biotechnology industry.” Source: RevenueBase Database · checked Sep 17, 2026
19	Cresen Solutions	Indirect evidence	Exton, PA, United StatesHQ checked Sep 17, 2026	51-200	74 contacts →
	Indirect evidence “Cresen Solutions, founded in 2015, delivers specialized, high-quality services to the life sciences industry.” Source: RevenueBase Database · checked Sep 17, 2026
20	Global Clinical Trials GCT	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 17, 2026	51-200	74 contacts →
	Indirect evidence “Global Clinical Trials (GCT) is a premium contract-research organization (CRO) that offers support for the clinical Phase I-IV studies as well as post-marketing activities to Big…” Source: RevenueBase Database · checked Sep 17, 2026
21	Regulatory Compliance Associates RCA	Partial evidence	Pleasant Prairie, WI, United StatesHQ checked Sep 17, 2026	51-200	67 contacts →
	Partial evidence “Regulatory Compliance Associates Inc.(RCA) is a team of experienced professionals from FDA-regulated industries including pharmaceutical, biologics and medical device.” Source: RevenueBase Database · checked Sep 17, 2026
22	Arbour Group LLC	Partial evidence	Warrenville, IL, United StatesHQ checked Sep 17, 2026	51-200	65 contacts →
	Partial evidence “Arbour Group LLC is a regulatory compliance firm that provides full-scope regulatory products and services for computer systems within pharmaceutical, medical device, and…” Source: RevenueBase Database · checked Sep 17, 2026
23	Solvias Usa, LLC	Indirect evidence	Canton, MA, United StatesHQ checked Sep 17, 2026	11-50	63 contacts →
	Indirect evidence “A FDA Registered, DEA Licensed CRO providing expertise in Regulated QC monograph testing; CMC Data production; Bio-analytical analysis Extractables/Leachables assessment; and…” Source: RevenueBase Database · checked Sep 17, 2026
24	Fdaqrc	Partial evidence	Cedar Park, TX, United StatesHQ checked Sep 17, 2026	11-50	62 contacts →
	Partial evidence “FDAQRC offers specialized quality consulting, regulatory compliance and quality assurance for Pharmaceutical, Medical Device and Biotech companies.” Source: RevenueBase Database · checked Sep 17, 2026
25	United Pharma Technologies INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 17, 2026	201-500	53 contacts →
	Indirect evidence “United Pharma Technologies (UPT) is a global life-science services company delivering CQV, validation, quality, automation, and regulatory compliance solutions to the…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: pharmaceutical auditing firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names pharmaceutical auditing firms.
Partial evidence: Its own public description names part of pharmaceutical auditing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical auditing firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 546 pharmaceutical auditing firms based in the United States

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Pharmaceutical auditing firms based in the United States at a glance

As of Sep 17, 2026

42.7%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · San Diego

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

334

11-50

143

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 546 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among pharmaceutical auditing firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “pharmaceutical auditing firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names pharmaceutical auditing firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among pharmaceutical auditing firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,077 across the full list. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names pharmaceutical auditing firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many pharmaceutical auditing firms are there based in the United States?

RevenueBase identified 546 pharmaceutical auditing firms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Bioagilytix, headquartered in Durham, tops this list with the largest team on record.

Which city has the most pharmaceutical auditing firms?

San Diego leads with 13 headquartered companies, followed by Atlanta (11) and New York (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,077 verified decision-maker contacts tracked across these 546 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 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 Smart Search, 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.