Company lists · Data refreshed September 2026
Top 25 Human factors consulting firms based in the United States
RevenueBase identified 1,322 human factors consulting firms headquartered in the United States as of September 2026 and tracks 8,091 professional contacts across them, including 2,768 with verified work emails. New York is the largest hub.
This list covers human factors 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 28, 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.
The 25 largest human factors consulting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 435 contacts → | ||||
Indirect evidence “At Briotix Health, we build relationships with you and your workforce to deliver meaningful results in employee health.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 235 contacts → | ||||
Partial evidence “Teague is an independent design consultancy that combines technology expertise with a deep understanding of human behavior to design what’s next for companies in automotive…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 208 contacts → | ||||
Partial evidence “Blink UX is a product design consulting firm that partners with ambitious companies to turn insight into action-creating breakthrough products and experiences through strategy…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 199 contacts → | ||||
Strong evidence “Welcome to Human Factors International, leaders of experience-led business transformations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 184 contacts → | ||||
Indirect evidence “At Resource Employment Solutions, our value proposition lies in our ability to closely monitor industry trends, including recessions, robotics, technology, AI, virtual solutions…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 176 contacts → | ||||
Partial evidence “Softway is a People-First Consulting firm for AI Transformation” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 170 contacts → | ||||
Partial evidence “Evidence-Based User Experience (UX) Research, Training, and Consulting: Nielsen Norman Group is headquartered in Silicon Valley, with members in 17 additional locations throughout…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 118 contacts → | ||||
Indirect evidence “Bluehawk was founded on a simple proposition: attract top talent, listen closely to customer needs, and deliver exceptional results.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 107 contacts → | ||||
Partial evidence “Sandalwood is an engineering and ergonomics consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 94 contacts → | ||||
Indirect evidence “Bold Insight: Empowering exceptional experiences We're creative, flexible, and research-minded.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 92 contacts → | ||||
Indirect evidence “The Ramp Group provides solutions that incorporate a user-centered design approach into a holistic product development process.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 86 contacts → | ||||
Indirect evidence “IT Cadre helps the nation's most important organizations achieve success.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 85 contacts → | ||||
Partial evidence “Mile Two is an applied innovation company that utilizes expertise in human performance, user experience design, and cognitive systems engineering to develop user-centric software…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 85 contacts → | ||||
Partial evidence “Alton Aviation Consultancy has significant experience delivering large, complex consulting engagements for clients in aviation and aerospace.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 74 contacts → | ||||
Indirect evidence “SCT is dedicated to making a positive impact to organizations and their leaders through providing innovative and enduring solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 73 contacts → | ||||
Strong evidence “Explico is a fast-growing firm that delivers premium scientific and engineering services in areas such as accident reconstruction, biomechanics, human factors, data analytics, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 72 contacts → | ||||
Indirect evidence “Bring your product's goodness to life; with UX team that works and converts.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 71 contacts → | ||||
Partial evidence “Answer Engineering is an aviation & aerospace engineering consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 67 contacts → | ||||
Indirect evidence “Pacific Science & Engineering Group is a small business headquartered in San Diego, California.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 64 contacts → | ||||
Partial evidence “We are a results-driven consulting firm focused on maximizing value and ROI.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 61 contacts → | ||||
Indirect evidence “Newbury Partners brings years of experience as technology advisors to the Staffing Industry.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 59 contacts → | ||||
Indirect evidence “HR Collaborative helps organizations grow through their people.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 56 contacts → | ||||
Indirect evidence “Founded in Lokion is an interactive firm based in Memphis, TN.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 55 contacts → | ||||
Partial evidence “Monterey Technologies, Inc is a user centered engineering design firm that makes your organization more efficient and effective in the areas of Human Engineering, Mission…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 53 contacts → | ||||
Strong evidence “Human Solutions Inc, a Division of Oasis Systems LLC, is a leading technical services company providing full life-cycle strategic consulting in systems engineering, enterprise…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: human factors 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 human factors consulting firms.
- Partial evidence
- Its own public description names part of human factors consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name human factors 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 1,322 human factors consulting firms based in the United States
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Human factors consulting firms based in the United States at a glance
As of Sep 28, 2026Companies by employee count
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 1,322 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 human factors 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 “human factors 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 human factors 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 human factors 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, 2,768 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 28, 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.
Human factors consulting firms by metro
- Human factors consulting firms in New York51
- Human factors consulting firms in Chicago41
- Human factors consulting firms in Atlanta34
- Human factors consulting firms in Houston31
- Human factors consulting firms in Seattle30
- Human factors consulting firms in San Francisco29
- Human factors consulting firms in Austin26
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 human factors 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 human factors consulting firms are there based in the United States?
RevenueBase identified 1,322 human factors 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?
Briotix Health, headquartered in Centennial, tops this list with the largest team on record.
Which city has the most human factors consulting firms?
New York leads with 51 headquartered companies, followed by Chicago (41) and Atlanta (34).
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 2,768 verified decision-maker contacts tracked across these 1,322 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 28, 2026.
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Human factors consulting firms by geography
- Human factors consulting firms based in Melbourne, Australia
- Human factors consulting firms based in Sydney, Australia
- Human factors consulting firms based in Sao Paulo, Brazil
- Human factors consulting firms based in Toronto, Canada
- Human factors consulting firms based in Santiago, Chile
- Human factors consulting firms based in Lyon, France
- Human factors consulting firms based in Paris, France
- Human factors consulting firms based in Bangalore, India
- Human factors consulting firms based in Madrid, Spain
- Human factors consulting firms based in Stockholm, Sweden
- Human factors consulting firms based in London, United Kingdom
- Human factors consulting firms based in Atlanta, United States
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.
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