Company lists · Data refreshed September 2026

Top 25 Quality management system developers based in the United States

Name: Quality management system developers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 409 companies tracked

RevenueBase identified 409 quality management system developers headquartered in the United States as of September 2026 and tracks 4,413 professional contacts across them, including 1,249 with verified work emails. Houston is the largest hub.

This list covers quality management system developers 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 21, 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 21, 2026 86% judged on-target in blind review

409Companies

4,413Contacts tracked

1,249Verified emails

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The 25 largest quality management system developers based in the United States

Ranked by team size

Top 25 of 409 quality management system developers based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to quality management system developers: 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	Caliber Technologies	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 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 21, 2026
2	ETQ	Strong evidence	Burlington, MA, United StatesHQ checked Sep 21, 2026	201-500	254 contacts →
	Strong evidence “Octave Reliance (formerly ETQ Reliance) is the leading Quality, EHS, Food Safety and Compliance management software for identifying, mitigating and preventing high-risk events…” Source: RevenueBase Database · checked Sep 21, 2026
3	Green Tokai Co. LTD	Indirect evidence	Brookville, OH, United StatesHQ checked Sep 21, 2026	501-1,000	246 contacts →
	Indirect evidence “At Green Tokai Co, Ltd, we are dedicated to consistently meeting and exceeding our customers’ expectations in product performance, service, and delivery.” Source: RevenueBase Database · checked Sep 21, 2026
4	Omnex INC	Indirect evidence	Ann Arbor, MI, United StatesHQ checked Sep 21, 2026	501-1,000	216 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
5	Greenlight Guru	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	201-500	139 contacts →
	Indirect evidence “Greenlight Guru is the #1 provider of modern cloud-based QMS & EDC solutions for the MedTech industry, helping companies bring life-changing products to market faster, more…” Source: RevenueBase Database · checked Sep 21, 2026
6	Qualio	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	119 contacts →
	Strong evidence “Qualio is a unified quality and compliance management platform that helps regulated organizations get products to market faster with reduced risk.” Source: RevenueBase Database · checked Sep 21, 2026
7	Iqs, Inc. A Cority Company	Strong evidence	North Olmsted, OH, United StatesHQ checked Sep 21, 2026	201-500	100 contacts →
	Strong evidence “Building on 30+ years of experience, IQS is modern, enterprise-grade quality management software designed to help our customers ensure compliance and bring the highest quality…” Source: RevenueBase Database · checked Sep 21, 2026
8	Zenqms	Strong evidence	Ardmore, PA, United StatesHQ checked Sep 21, 2026	51-200	98 contacts →
	Strong evidence “ZenQMS is on a mission to elevate the role of Quality in the Life Sciences and support Quality professionals with easy-to-use digital process management.” Source: RevenueBase Database · checked Sep 21, 2026
9	Cmx1 Compliancemetrix	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	51-200	78 contacts →
	Indirect evidence “We power everyday excellence at the world's most trusted brands.” Source: RevenueBase Database · checked Sep 21, 2026
10	Atser Systems, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	77 contacts →
	Partial evidence “In the early 1990’s, ATSER pioneered the use of an electronic software solution for Quality Assurance verification and compliance oversight for use in the Civil Engineering…” Source: RevenueBase Database · checked Sep 21, 2026
11	Intellect	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	75 contacts →
	Partial evidence “Intellect is an AI-powered enterprise platform that helps manufacturers and life sciences organizations improve quality, compliance, and supply chain visibility.” Source: RevenueBase Database · checked Sep 21, 2026
12	Qualityze INC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	75 contacts →
	Strong evidence “Qualityze is a leading provider of AI-powered, cloud-based Quality Management System (QMS) software for Life Sciences and Manufacturing organizations.” Source: RevenueBase Database · checked Sep 21, 2026
13	Plexus International	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	51-200	71 contacts →
	Strong evidence “Plexus International is a global leader in providing training, assessment, and consulting services for organizations to attain quality management systems excellence.” Source: RevenueBase Database · checked Sep 21, 2026
14	IQC	Indirect evidence	Dayton, United StatesHQ checked Sep 21, 2026	11-50	61 contacts →
	Indirect evidence “IQC, The ISO Standard Professionals.” Source: RevenueBase Database · checked Sep 21, 2026
15	Assurx	Strong evidence	Reno, NV, United StatesHQ checked Sep 21, 2026	51-200	46 contacts →
	Strong evidence “With decades of expertise built into our quality management software and regulatory compliance software platforms, AssurX helps companies maintain quality and compliance…” Source: RevenueBase Database · checked Sep 21, 2026
16	Axeon Corporation	Indirect evidence	Draper, UT, United StatesHQ checked Sep 21, 2026	11-50	46 contacts →
	Indirect evidence “The Axeon Difference Axeon Corporation is a customer-focused, practical and approachable, technically sound training and consulting firm.” Source: RevenueBase Database · checked Sep 21, 2026
17	Quality Auditing LLC	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	11-50	43 contacts →
	Strong evidence “Quality Auditing LLC is the industry leader in Quality Management System Auditing & Consulting for clients in highly-regulated industries, including Medical Device…” Source: RevenueBase Database · checked Sep 21, 2026
18	High QA	Partial evidence	Hazlet, NJ, United StatesHQ checked Sep 21, 2026	11-50	41 contacts →
	Partial evidence “Is your manufacturing quality process up to standard?” Source: RevenueBase Database · checked Sep 21, 2026
19	Cognition Corporation	Indirect evidence	Lexington, MA, United StatesHQ checked Sep 21, 2026	51-200	38 contacts →
	Indirect evidence “Cognition Corporation, headquartered in Lexington, Massachusetts, specializes in product development and compliance solutions for the life sciences industries.” Source: RevenueBase Database · checked Sep 21, 2026
20	Pilgrim Quality Solutions	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	36 contacts →
	Strong evidence “Pilgrim Quality Solutions, an IQVIA company, is the leader in quality and compliance management software and services for the life sciences industry.” Source: RevenueBase Database · checked Sep 21, 2026
21	The ISO 9001 Group	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	29 contacts →
	Strong evidence “The ISO 9001 Group is a full-service business and management system consulting, auditing and training firm based in Houston, Texas.” Source: RevenueBase Database · checked Sep 21, 2026
22	Enlil, INC	Indirect evidence	Campbell, CA, United StatesHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “Enlil enables MedTech incubators and product companies to ideate, build, and commercialize their regulated innovations faster.” Source: RevenueBase Database · checked Sep 21, 2026
23	Quality Institute Of America - QIA	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	26 contacts →
	Strong evidence “We are a software development company specializing in creating management systems that comply with standards such as ISO ISO and AS 9100.” Source: RevenueBase Database · checked Sep 21, 2026
24	Tiec, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	26 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
25	PQ Systems	Strong evidence	Dayton, OH, United StatesHQ checked Sep 21, 2026	11-50	24 contacts →
	Strong evidence “Since 1984, PQ Systems has been providing solutions to help organizations implement quality improvement programs and demonstrate proof of their quality performance.” Source: RevenueBase Database · checked Sep 21, 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: quality management system developers. 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 quality management system developers.
Partial evidence: Its own public description names part of quality management system developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name quality management system developers. 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 409 quality management system developers based in the United States

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Quality management system developers based in the United States at a glance

As of Sep 21, 2026

28.3%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

289

11-50

51-200

201-500

501-1,000

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 409 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 quality management system developers, 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 “quality management system developers”. 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 quality management system developers), 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 quality management system developers, 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, 1,249 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 21, 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 quality management system developers, 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 quality management system developers are there based in the United States?

RevenueBase identified 409 quality management system developers 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?

Caliber Technologies, headquartered in Pittsburgh, tops this list with the largest team on record.

Which city has the most quality management system developers?

Houston leads with 12 headquartered companies, followed by Los Angeles (9) and Irvine (7).

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 1,249 verified decision-maker contacts tracked across these 409 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 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 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.