Company lists · Data refreshed September 2026

Top 25 Website usability testing based in the United States

RevenueBase identified 103 company matches for website usability testing associated with the United States as of September 2026 and tracks 974 professional contacts across them, including 373 with verified work emails. New York is the largest hub.

This list covers company matches for website usability testing 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 September 22, 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 Sep 22, 2026 How this list was built
103Companies
974Contacts tracked
373Verified emails
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The 25 largest website usability testing based in the United States

Ranked by team size
Top 25 of 103 company matches for website usability testing based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchSilicon Valley, CA, United StatesHQ recorded Sep 22, 2026n/a170 contacts →

Exact match

“Evidence-Based User Experience (UX) Research, Training, and Consulting: Nielsen Norman Group is headquartered in Silicon Valley, with members in 17 additional locations throughout…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchMiami, FL, United StatesHQ recorded Sep 22, 202651-200128 contacts →

Exact match

“Established in San Francisco in 2009, with offices in Miami, Florida and Madrid, Spain, Userlytics is a state of the art global platform for remote user experience (UX) and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchDowners Grove, IL, United StatesHQ recorded Sep 22, 202651-20094 contacts →

Exact match

“Bold Insight: Empowering exceptional experiences We're creative, flexible, and research-minded.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchClearwater, FL, United StatesHQ recorded Sep 22, 202651-20090 contacts →

Exact match

“TPG Interactive (TPGi) is a world-class accessibility consultancy with a reputation for excellence.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 22, 202611-5047 contacts →

Exact match

“We are a research and user-interface-design company with one mission-fitting products to people.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchMiami, FL, United StatesHQ recorded Sep 22, 202651-20042 contacts →

Exact match

“Key Lime Interactive is a Customer Experience and User Experience research, strategy, and full-service agency focused on helping companies take a human-first approach to building…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchDenver, CO, United StatesHQ recorded Sep 22, 202611-5038 contacts →

Exact match

“MeasuringU is a UX research and software firm focused on connecting companies with their customers.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchLas Colinas, TX, United StatesHQ recorded Sep 22, 202611-5028 contacts →

Exact match

“Usability Sciences, a user experience research firm located in Dallas, TX, has been helping clients improve their customers’ experience for over 35 years by answering the who…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchVancouver, WA, United StatesHQ recorded Sep 22, 202611-5021 contacts →

Exact match

“We are the leader in user experience monitoring, analysis, and quality assurance testing.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchStillwater, MN, United StatesHQ recorded Sep 22, 202611-5018 contacts →

Exact match

“Who We Are: WeCo is a mission-based company that believes that usability is part of accessibility.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchBaltimore, MD, United StatesHQ recorded Sep 22, 20261-1013 contacts →

Exact match

“At Astriata, we combine human insights from usability testing with intentional design and the right technology to create better, more meaningful user experiences.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchSan Diego, United StatesHQ recorded Sep 22, 20261-1013 contacts →

Exact match

“CXperts is a Customer Experience (CX) consultancy solely focused on improving the experience between customers and brands across their many digital interactions.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchColumbia, SC, United StatesHQ recorded Sep 22, 202611-5012 contacts →

Exact match

“We’re user experience experts who help create digital products that solve your business problems and make business improvements.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchKirkland, WA, United StatesHQ recorded Sep 22, 202611-507 contacts →

Exact match

“At Caelus LLC we offer our services to organizations of all sizes.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchAustin, TX, United StatesHQ recorded Sep 22, 202611-507 contacts →

Exact match

“Experiment Zone is a leading UX Research and Conversion Rate Optimization (CRO) agency helping digital brands improve performance through data-driven experimentation and usability…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchChevy Chase, MD, United StatesHQ recorded Sep 22, 202611-506 contacts →

Exact match

“We are digital product designers who revitalize SaaS and enterprise applications to make them easy to use.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchEvanston, IL, United StatesHQ recorded Sep 22, 202611-506 contacts →

Exact match

“Centralis is a leading user experience research and strategy agency serving some of the world’s best-known companies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchManhattan, United StatesHQ recorded Sep 22, 202611-506 contacts →

Exact match

“Founded in 1975, we are among the most experienced international consulting firms focused on helping world-class clients and leading start ups solve business-critical problems…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchDes Moines, IA, United StatesHQ recorded Sep 22, 202611-505 contacts →

Exact match

“Criterion was founded in 2001 by accessibility expert Anna Bradley, M.S, Ed.S.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchMinneapolis, MN, United StatesHQ recorded Sep 22, 20261-104 contacts →

Exact match

“Straight Line Theory is a UX company based in Minneapolis.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchYork, United StatesHQ recorded Sep 22, 202611-504 contacts →

Exact match

“We are a team of experts in Usability, Interactive Design and Graphic Design.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchPasadena, CA, United StatesHQ recorded Sep 22, 202611-503 contacts →

Exact match

“is a complete accessibility testing tool designed for digital professionals and agencies dedicated to making websites accessible.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchEagle Mountain, UT, United StatesHQ recorded Sep 22, 20261-103 contacts →

Exact match

“Meticular is a team of product design experts that thrive in UX minutia, so you don’t have to.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchGainesville, VA, United StatesHQ recorded Sep 22, 20261-103 contacts →

Exact match

“At CX Insights, we focus on your customer's experience.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchPortland, OR, United StatesHQ recorded Sep 22, 20261-102 contacts →

Exact match

“Experience and expertise in usability and UX design Mile7 provides user research, UX design and usability testing services to clients across the country.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 103 website usability testing based in the United States

See the full list, filter by size, metro and specialty, and access 373 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Website usability testing based in the United States at a glance

As of Sep 22, 2026
38.3%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
4.9%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
68
11-50
30
51-200
4
10001+
1

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 103 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 “website usability testing” 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 373 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 September 22, 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 “website usability testing”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many website usability testing are there based in the United States?

RevenueBase identified 103 company matches for website usability testing associated with the United States as of September 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?

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

Which city has the most website usability testing?

New York leads with 5 company records, followed by Chicago (4) and Miami (4).

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 373 professional contacts with verified work emails tracked across these 103 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 September 22, 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.