Company lists · Data refreshed November 2026

Top 25 Load testing tool vendors based in the United States

RevenueBase identified 63 company matches for load testing tool vendors associated with the United States as of November 2026 and tracks 1,083 professional contacts across them, including 339 with verified work emails. New York is the largest hub.

This list covers company matches for load testing tool vendors 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
63Companies
1,083Contacts tracked
339Verified emails
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The 25 largest load testing tool vendors based in the United States

Ranked by team size
Top 25 of 63 company matches for load testing tool vendors 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 matchDallas, TX, United StatesHQ recorded Nov 6, 2026201-500250 contacts →

Exact match

“ACCELQ is the only cloud-based continuous testing platform that seamlessly automates API and web testing without writing a single line of code.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCupertino, CA, United StatesHQ recorded Nov 6, 202651-200121 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“Cypress is a quality testing platform that brings together the open-source Cypress App tool and the Cypress Cloud platform, supporting the entire testing lifecycle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Checkly is an application reliability platform built to empower modern engineering teams and agents to own & ensure application performance and reliability, from pull request to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, United StatesHQ recorded Nov 6, 2026n/a41 contacts →

Exact match

“The easiest way to test your apps.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMinnetonka, MN, United StatesHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Our mission is to give our customers cutting edge features such as “image matching” within a real browser, element level trend charting, and video capture of website and web…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“APIContext provides outside-in application testing that replicates how your users access your apps.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBridgewater, NJ, United StatesHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“RadView Software is a leading provider of enterprise-grade performance and load testing solutions that enable organizations to achieve the level of performance essential for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMarina Del Rey, CA, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Apposite Technologies provides world-class network, application and security test solutions to enterprises, service providers, and government agencies worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Automated testing, monitoring and observability for the entire Revenue and GTM infrastructure - web, analytics, marketing, CRM, sales, e-commerce.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMountain View, CA, United StatesHQ recorded Nov 6, 20261-1015 contacts →

Exact match

“At PFLB, we're dedicated to helping technology teams scale and optimize their applications with our robust performance testing platform and professional engineering services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSf Bay, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Skyramp is an AI-driven testing platform that acts like a personal QA engineer for your development team.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“OpenResty Inc, founded by the team behind the No.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCupertino, CA, United StatesHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Enteros is an innovative SaaS and services company specializing in Production Database Performance Management and Load Testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSomerville, MA, United StatesHQ recorded Nov 6, 2026501-1,00010 contacts →

Exact match

“Best in Class Synthetic Monitoring for APIs, Mobile and Web Applications Start a Free Trial: http://smartbear.com/product/alertsite-enterprise/free-trial/ About SmartBear: Over 3…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRoseville, CA, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Since 2020, Zebrunner has been helping companies of any size & domain to deliver bug-free apps at a high speed with its Testing Cloud & Infrastructure Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSausalito, CA, United StatesHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“Ascert was founded in 1992 as a supplier of specialized testing software and services to the Tandem NonStop server market - a platform for which "failure is not an option."…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchShoreview, MN, United StatesHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“A powerful browser-based testing tool designed to transform the way you approach software testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchRed Bank, NJ, United StatesHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Stimulus Technology is a web performance company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchChicago, IL, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“At Perforator, we believe that every business deserves a fast, reliable, and high-performing website.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Deploy code fearlessly and fix bugs faster with Airbrake Error & Performance Monitoring.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAustin, TX, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Jikken provides tools which empower you to write API tests for your software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLibby, MT, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“At One Shore, we love to build (and fix) software testing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMilpitas, CA, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“LabScale is a Software-as-a-Service (SaaS) platform that provides comprehensive tools for testing embedded devices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Element34 builds SBOX, the private, AI-native enterprise test automation grid that runs entirely inside your own network: on premise, in your VPC, or as a managed private cloud.”

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

Showing 25 of 63 load testing tool vendors based in the United States

See the full list, filter by size, metro and specialty, and access 339 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Load testing tool vendors based in the United States at a glance

As of Nov 6, 2026
31.3%Verified-email coverage
17.2Average contacts per company
11-50Median size (employees)
6.3%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
19
51-200
11
201-500
3
501-1,000
1
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 63 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 “load testing tool vendors” 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 339 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 “load testing tool vendors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many load testing tool vendors are there based in the United States?

RevenueBase identified 63 company matches for load testing tool vendors 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?

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

Which city has the most load testing tool vendors?

New York leads with 4 company records, followed by Atlanta (3) and San Francisco (3).

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 339 professional contacts with verified work emails tracked across these 63 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.