Company lists · Data refreshed November 2026

Top 25 Quality engineering consultants based in the United States

RevenueBase identified 2,172 company matches for quality engineering consultants associated with the United States as of November 2026 and tracks 66,608 professional contacts across them, including 25,993 with verified work emails. New York is the largest hub.

This list covers company matches for quality engineering consultants 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
2,172Companies
66,608Contacts tracked
25,993Verified emails
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The 25 largest quality engineering consultants based in the United States

Ranked by team size
Top 25 of 2,172 company matches for quality engineering consultants 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 matchOlathe, NE, United StatesHQ recorded Nov 6, 20265,001-10,0006,576 contacts →

Exact match

“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchChantilly, VA, United StatesHQ recorded Nov 6, 20261,001-5,0002,363 contacts →

Exact match

“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchIrving, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,749 contacts →

Exact match

“Cigniti Technologies Limited is the world’s leading AI & IP-led Digital Assurance and Digital Engineering services company that helps global companies across industries…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSeattle, ID, United StatesHQ recorded Nov 6, 20261,001-5,0001,631 contacts →

Exact match

“KPFF is a multi-office, multi-discipline engineering firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchFramingham, MA, United StatesHQ recorded Nov 6, 2026201-5001,463 contacts →

Exact match

“Applause is the global leader in managed software testing services and digital quality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTroy, MI, United StatesHQ recorded Nov 6, 20261,001-5,0001,125 contacts →

Exact match

“At RGBSI, we deliver engineering and quality solutions that close the gap between strategy and execution for global organizations of all sizes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSeattle, CO, United StatesHQ recorded Nov 6, 2026501-1,000919 contacts →

Exact match

“The right team is more than an advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPleasanton, CA, United StatesHQ recorded Nov 6, 20261,001-5,000885 contacts →

Exact match

“QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPlano, TX, United StatesHQ recorded Nov 6, 2026n/a840 contacts →

Exact match

“Tam Consulting Services LLC (TCS) provides engineering and quality services which includes construction engineering and inspection (CE & I), materials testing, program management…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchIrving, TX, United StatesHQ recorded Nov 6, 20261,001-5,000803 contacts →

Exact match

“QualiZeal is the world’s fastest-growing independent, AI-native Digital Quality Engineering services provider, redefining how organizations achieve quality at scale through our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchArlington Heights, NY, United StatesHQ recorded Nov 6, 20261,001-5,000795 contacts →

Exact match

“Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDhaka, CA, United StatesHQ recorded Nov 6, 2026501-1,000722 contacts →

Exact match

“BJIT is a global leader in offshore software development and IT outsourcing services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBaltimore, FL, United StatesHQ recorded Nov 6, 2026501-1,000690 contacts →

Exact match

“Established in 1915, WRA is a nationally-recognized engineering, architectural and environmental planning firm with a reputation for delivering exceptional work on time and within…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKennesaw, FL, United StatesHQ recorded Nov 6, 2026501-1,000541 contacts →

Exact match

“Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCherry Hill, PA, United StatesHQ recorded Nov 6, 2026501-1,000437 contacts →

Exact match

“Founded in 1901, RVE has grown to be an industry leader with 500 team members in offices throughout New Jersey, Pennsylvania, Delaware, Maryland and North Carolina.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSan Mateo, CA, United StatesHQ recorded Nov 6, 2026501-1,000437 contacts →

Exact match

“We are celebrating 30 years of testing excellence and innovation at LogiGear, we're proud to be a cornerstone in our clients' journeys, delivering confidence not just in our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDallas, TX, United StatesHQ recorded Nov 6, 2026501-1,000426 contacts →

Exact match

“Information Technology & Services”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSulphur, LA, United StatesHQ recorded Nov 6, 2026501-1,000424 contacts →

Exact match

“ReCon was established in 1995 and has matured as a high quality and competitive engineering consulting firm providing engineering design and project management services to the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchFalls Church, VA, United StatesHQ recorded Nov 6, 202651-200419 contacts →

Exact match

“For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCleveland, OH, United StatesHQ recorded Nov 6, 2026201-500392 contacts →

Exact match

“Established over a century ago in 1892, Osborn is proud to be one of the nation’s oldest engineering firms, continuing a tradition of excellence through outstanding quality in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLong Beach, CA, United StatesHQ recorded Nov 6, 2026201-500379 contacts →

Exact match

“P2S has brought forward-thinking, sustainable engineering solutions to the West Coast and beyond for over 35 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIrving, MI, United StatesHQ recorded Nov 6, 2026501-1,000337 contacts →

Exact match

“At Kairos, we specialize in Digital Quality Engineering and Digital Transformation, helping our clients navigate the modern technology landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBrentwood, FL, United StatesHQ recorded Nov 6, 2026201-500336 contacts →

Exact match

“Founded in 1989, TRC Worldwide Engineering, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMilwaukee, IL, United StatesHQ recorded Nov 6, 2026201-500328 contacts →

Exact match

“Mission: We listen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSpring Branch, TX, United StatesHQ recorded Nov 6, 2026201-500324 contacts →

Exact match

“Full Service Firm M&S Engineering is a professional engineering services firm whose mission is to provide our clients with quality, efficient services at the greatest overall…”

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

Showing 25 of 2,172 quality engineering consultants based in the United States

See the full list, filter by size, metro and specialty, and access 25,993 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Quality engineering consultants based in the United States at a glance

As of Nov 6, 2026
39.0%Verified-email coverage
30.7Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,098
11-50
698
51-200
275
201-500
48
501-1,000
23
1,001-5,000
20
5,001-10,000
2
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 2,172 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 “quality engineering consultants” 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 25,993 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 “quality engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quality engineering consultants are there based in the United States?

RevenueBase identified 2,172 company matches for quality engineering consultants 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?

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

Which city has the most quality engineering consultants?

New York leads with 68 company records, followed by Houston (50) and Austin (28).

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 25,993 professional contacts with verified work emails tracked across these 2,172 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.