Company lists · Data refreshed September 2026

Top 25 Pharmaceutical quality assurance consulting firms based in the United States

Name: Pharmaceutical quality assurance consulting 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 29, 2026 1,953 companies tracked

RevenueBase identified 1,953 pharmaceutical quality assurance consulting firms headquartered in the United States as of September 2026 and tracks 23,788 professional contacts across them, including 8,588 with verified work emails. Boston is the largest hub.

This list covers pharmaceutical quality assurance consulting 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 29, 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 29, 2026 86% judged on-target in blind review

1,953Companies

23,788Contacts tracked

8,588Verified emails

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The 25 largest pharmaceutical quality assurance consulting firms based in the United States

Ranked by team size

Top 25 of 1,953 pharmaceutical quality assurance consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical quality assurance consulting 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	Propharma	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,079 contacts →
	Partial evidence “At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.” Source: RevenueBase Database · checked Sep 29, 2026
2	Caliber Technologies	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 29, 2026	501-1,000	860 contacts →
	Partial evidence “For over 25 years, Caliber has helped regulated industries modernize quality, laboratory, and manufacturing operations through software built for regulatory compliance.” Source: RevenueBase Database · checked Sep 29, 2026
3	Astrix	Indirect evidence	Red Bank, NJ, United StatesHQ checked Sep 29, 2026	501-1,000	596 contacts →
	Indirect evidence “Astrix is the global leader in delivering innovative strategies and solutions to the life sciences industry.” Source: RevenueBase Database · checked Sep 29, 2026
4	ILAB	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 29, 2026	501-1,000	417 contacts →
	Strong evidence “iLAB specializes in Software Quality Assurance services, providing global solutions to our customers.” Source: RevenueBase Database · checked Sep 29, 2026
5	Quality Professionals Q-Pros	Strong evidence	TX, United StatesHQ checked Sep 29, 2026	501-1,000	347 contacts →
	Strong evidence “Quality Professionals (Q-Pros) is a global independent software Quality Assurance and Testing services provider supporting enterprise and government organizations.” Source: RevenueBase Database · checked Sep 29, 2026
6	Verista	Partial evidence	Fishers, IN, United StatesHQ checked Sep 29, 2026	501-1,000	323 contacts →
	Partial evidence “Verista is a leading business and technology consultancy firm that provides systems, compliance, validation and quality solutions to life science companies - enabling them to…” Source: RevenueBase Database · checked Sep 29, 2026
7	Elite Safety Sciences	Partial evidence	Bridgewater, NJ, United StatesHQ checked Sep 29, 2026	201-500	284 contacts →
	Partial evidence “ESS is a Pharmacovigilance service provider with the mindset to provide excellent compliance and quality deliverables.” Source: RevenueBase Database · checked Sep 29, 2026
8	Vaisesika	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 29, 2026	201-500	266 contacts →
	Partial evidence “Vaisesika Consulting is a global tech and consulting firm that helps businesses transform their digital setups and stay compliant in a straightforward way.” Source: RevenueBase Database · checked Sep 29, 2026
9	Valsource INC	Partial evidence	Downingtown, PA, United StatesHQ checked Sep 29, 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 29, 2026
10	Kymanox	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 29, 2026	201-500	239 contacts →
	Indirect evidence “Kymanox (‘ki-mah-noks’), meaning Ideal Knowledge Transfer, is your trusted partner in advancing life science innovation.” Source: RevenueBase Database · checked Sep 29, 2026
11	Sequence INC	Strong evidence	Morrisville, NC, United StatesHQ checked Sep 29, 2026	201-500	232 contacts →
	Strong evidence “Sequence, LLC provides turn-key consulting solutions and services for the biopharmaceutical manufacturing industry, specializing in Commissioning, Qualification and Validation…” Source: RevenueBase Database · checked Sep 29, 2026
12	Mcra, An Iqvia Business	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	51-200	226 contacts →
	Partial evidence “MCRA, an IQVIA business, is a leading full-service medical device, diagnostics, and biologics CRO and consulting advisory firm helping global healthcare companies maximize the…” Source: RevenueBase Database · checked Sep 29, 2026
13	PRO QC International	Partial evidence	Mchenry, IL, United StatesHQ checked Sep 29, 2026	501-1,000	211 contacts →
	Partial evidence “Pro QC International provides tailored quality solutions with a human touch in 100 countries.” Source: RevenueBase Database · checked Sep 29, 2026
14	ECI	Partial evidence	Marlborough, MA, United StatesHQ checked Sep 29, 2026	201-500	194 contacts →
	Partial evidence “Enhanced Compliance Inc.(ECI) is a global life sciences partner delivering integrated quality, regulatory, and compliance expertise-combined with hands-on engineering execution…” Source: RevenueBase Database · checked Sep 29, 2026
15	Lachman Consultant Services	Partial evidence	Westbury, NY, United StatesHQ checked Sep 29, 2026	51-200	179 contacts →
	Partial evidence “Quality & Compliance \| Regulatory Strategy \| Inspection Readiness & Remediation \| Data Integrity.” Source: RevenueBase Database · checked Sep 29, 2026
16	Quality Chemical Laboratories	Partial evidence	Wilmington, NC, United StatesHQ checked Sep 29, 2026	201-500	177 contacts →
	Partial evidence “QCL is science driven, quality focused, and responsive.” Source: RevenueBase Database · checked Sep 29, 2026
17	Norwich Pharma Services	Partial evidence	Norwich, NY, United StatesHQ checked Sep 29, 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 29, 2026
18	SSI Strategy	Indirect evidence	Parsippany, NJ, United StatesHQ checked Sep 29, 2026	51-200	169 contacts →
	Indirect evidence “At SSI Strategy, we're strategic partners deeply invested in our clients' success.” Source: RevenueBase Database · checked Sep 29, 2026
19	Usdm Life Sciences	Indirect evidence	Santa Barbara, CA, United StatesHQ checked Sep 29, 2026	201-500	165 contacts →
	Indirect evidence “At USDM Life Sciences, we empower life sciences organizations to drive innovation through intelligent operations.” Source: RevenueBase Database · checked Sep 29, 2026
20	Nextrove	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 29, 2026	51-200	143 contacts →
	Indirect evidence “Nextrove is an industry leader in Life Sciences Professional Services and Solutions, and headquartered in the United States (Princeton, NJ) with additional offices in the UK…” Source: RevenueBase Database · checked Sep 29, 2026
21	EAC Consulting, INC	Indirect evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	51-200	142 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
22	Flexasoft	Strong evidence	Redmond, WA, United StatesHQ checked Sep 29, 2026	51-200	128 contacts →
	Strong evidence “FleXasoft is a Redmond, Washington based software consulting firm specializing in Software Development and Quality Assurance Testing.” Source: RevenueBase Database · checked Sep 29, 2026
23	MMR Consulting	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 29, 2026	51-200	124 contacts →
	Partial evidence “MMR Consulting Inc.” Source: RevenueBase Database · checked Sep 29, 2026
24	MSR Technology Group	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 29, 2026	1,001-5,000	124 contacts →
	Indirect evidence “As a leader in professional services, MSR Technology Group ignites growth for businesses across diverse industries.” Source: RevenueBase Database · checked Sep 29, 2026
25	Total Validation Services	Partial evidence	Moraga, CA, United StatesHQ checked Sep 29, 2026	11-50	120 contacts →
	Partial evidence “Total Validation Services (TVS) is an industry leader in delivering practical and cost-effective commissioning, qualification, and validation solutions, in addition to project…” Source: RevenueBase Database · checked Sep 29, 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 quality assurance consulting 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 quality assurance consulting firms.
Partial evidence: Its own public description names part of pharmaceutical quality assurance consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical quality assurance consulting 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 1,953 pharmaceutical quality assurance consulting firms based in the United States

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Pharmaceutical quality assurance consulting firms based in the United States at a glance

As of Sep 29, 2026

36.1%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · Boston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,356

11-50

405

51-200

136

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 1,953 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 quality assurance consulting 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 quality assurance consulting 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 quality assurance consulting 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 quality assurance consulting 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, 8,588 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 29, 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.

Pharmaceutical quality assurance consulting firms by metro

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 quality assurance consulting 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 quality assurance consulting firms are there based in the United States?

RevenueBase identified 1,953 pharmaceutical quality assurance consulting 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?

Propharma, headquartered in Raleigh, tops this list with the largest team on record.

Which city has the most pharmaceutical quality assurance consulting firms?

Boston leads with 45 headquartered companies, followed by San Diego (45) and Raleigh (31).

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 8,588 verified decision-maker contacts tracked across these 1,953 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 29, 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.