Company lists · Data refreshed September 2026

Top 25 Continuous integration testing services based in the United States

RevenueBase identified 79 continuous integration testing services headquartered in the United States as of September 2026 and tracks 3,291 professional contacts across them, including 1,656 with verified work emails. San Francisco is the largest hub.

This list covers continuous integration testing services 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 19, 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 19, 2026 86% judged on-target in blind review
79Companies
3,291Contacts tracked
1,656Verified emails
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The 25 largest continuous integration testing services based in the United States

Ranked by team size
Top 25 of 79 continuous integration testing services based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to continuous integration testing services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 2026501-1,0001,402 contacts →

Indirect evidence

“Harness is a rapidly growing startup that is disrupting the software delivery market.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 2026201-500348 contacts →

Indirect evidence

“CircleCI is CI/CD built to accelerate code delivery with limitless scale and speed.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceSeattle, WA, United StatesHQ checked Sep 19, 202651-200223 contacts →

Indirect evidence

“QA Wolf gets engineering teams to 80% automated E2E test coverage, fast - and keeps it there.”

Source: RevenueBase Database · checked Sep 19, 2026
4Strong evidenceDallas, TX, United StatesHQ checked Sep 19, 2026201-500221 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceLos Angeles, TX, United StatesHQ checked Sep 19, 202651-200155 contacts →

Indirect evidence

“Engineering teams rely on Nominal to execute tests, analyze results in real time, collaborate across disciplines, and deliver resilient hardware in days, not months.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 19, 202651-200149 contacts →

Indirect evidence

“Avo Automation is a SaaS business focused on the automation of the software delivery process.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-50124 contacts →

Indirect evidence

“Automate your e2e tests without the time-consuming drudgery of test maintenance.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceSan Franciso, DE, United StatesHQ checked Sep 19, 202611-5097 contacts →

Partial evidence

“Auto-Generate Integration Tests from User Traffic.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceStamford, CT, United StatesHQ checked Sep 19, 202651-20096 contacts →

Partial evidence

“Webomates provides a revolutionary SaaS-based patented testing service called Webomates CQ which is aimed at significantly improving the quality of production software.”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceAtlanta, GA, United StatesHQ checked Sep 19, 202651-20091 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceAustin, TX, United StatesHQ checked Sep 19, 202611-5054 contacts →

Indirect evidence

“EngFlow is the build and test acceleration company created by core Bazel engineers and funded by Andreessen Horowitz.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceVienna, VA, United StatesHQ checked Sep 19, 202651-20036 contacts →

Indirect evidence

“At C.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5033 contacts →

Indirect evidence

“Ship faster by keeping CI green.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“Better Code Through Automation 3Qi Labs launched in 2010 with a simple goal: Help enterprise application development and QA teams use test automation effectively.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceColumbus, OH, United StatesHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“Legacy CI/CD platforms haven't caught up to the realities of the agentic dev cycle.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceCupertino, CA, United StatesHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“BaseRock.ai is the Modern Software Quality Platform that empowers enterprises to ship more features without compromising code quality.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 20261-1013 contacts →

Partial evidence

“Kerno autonomously writes, runs and maintains integration tests in your IDE covering every corner of your backend codebase so you can ship fast without breaking anything.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceWilmington, DE, United StatesHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“Early is for engineering, QA, and release leaders at organizations where a production regression is expensive to diagnose and slow to recover from.”

Source: RevenueBase Database · checked Sep 19, 2026
19Strong evidenceBrooklyn, United StatesHQ checked Sep 19, 20261-108 contacts →

Strong evidence

Continuous integration and on-device test automation for embedded systems.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceIrvine, CA, United StatesHQ checked Sep 19, 202651-2008 contacts →

Indirect evidence

“Trinity Technologies is a leading global technology company.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceRoseville, CA, United StatesHQ checked Sep 19, 202611-508 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceNashville, TN, United StatesHQ checked Sep 19, 20261-108 contacts →

Partial evidence

“Appsurify optimizes CI pipelines and Automation Testing over 80% through proprietary AI Risk Based Testing technology.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceSan Mateo, CA, United StatesHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Signadot is a Kubernetes-native platform that empowers AI coding agents to verify code across complex microservice ecosystems.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceBrooklyn, United StatesHQ checked Sep 19, 202611-507 contacts →

Partial evidence

“Waldo is the only way to integrate end-to-end testing into your mobile software development lifecycle.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 20261-104 contacts →

Partial evidence

“Tusk is the all-in-one testing platform that turns your app's live traffic into a self-maintaining unit and API test suite.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 79 continuous integration testing services based in the United States

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Continuous integration testing services based in the United States at a glance

As of Sep 19, 2026
50.3%Verified-email coverage
41.7Average contacts per company
1-10Median size (employees)
17.7%Largest-city concentration · San Francisco
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
41
11-50
25
51-200
10
201-500
2
501-1,000
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 79 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 continuous integration testing services, 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 “continuous integration testing services”. 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 continuous integration testing services), 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 continuous integration testing services, 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, 1,656 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 19, 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 continuous integration testing services, 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 continuous integration testing services are there based in the United States?

RevenueBase identified 79 continuous integration testing services 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?

Harness, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most continuous integration testing services?

San Francisco leads with 14 headquartered companies, followed by Seattle (5) and New York (4).

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 1,656 verified decision-maker contacts tracked across these 79 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 19, 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.