Manual Functional Testing Agencies in United States

20 manual functional testing agencies are listed in United States. 19 have been assessed on the Agency List Score as of October 2026; the top score, 97, is held by Abstracta.

Ranked · 15 of 19 assessed

Ordered by Agency List Score
Agency List Score
Abstracta
97

Custom AI agents and quality engineering for software development and QA teams

Accessibility TestingManual Functional TestingSecurity Testing
Agency List Score
Appinessworld Interactive
96

UX design and digital strategy for startups and enterprise organizations

Accessibility TestingAutomated TestingManual Functional Testing
Agency List Score
ImpactQA
95

AI-driven software testing and quality assurance for global enterprises

Accessibility TestingManual Functional TestingMobile App Testing
Agency List Score
TestMatick
91

QA and testing services for web and mobile applications

Automated TestingManual Functional TestingPerformance and Load Testing
Agency List Score
NGS Solution
91

Custom software development for startups and enterprises with a focus on scalability

Accessibility TestingAndroid DevelopmentAPI and Systems Integration
Agency List Score
TestFort
79

AI-powered software testing for diverse platforms and industries

Accessibility TestingAutomated TestingManual Functional Testing
Agency List Score
Thought Frameworks
74

Independent software QA testing and consulting services

Accessibility TestingAutomated TestingManual Functional Testing
Agency List Score
A-listware
74

Application development, cloud architecture, and managed IT support across finance, healthcare, and retail

Manual Functional TestingMobile App TestingSecurity Testing
Agency List Score
Webby Central
73

Enabling digital transformation with AI and cloud solutions

Accessibility TestingAutomated TestingManual Functional Testing
Agency List Score
Apptunix
73

SEO and PPC services for inbound lead capture and search visibility

Automated TestingManual Functional TestingMobile App Testing
Agency List Score
Iterators
70

Inclusive software testing for accessibility and functionality

Accessibility TestingManual Functional TestingMobile App Testing
Agency List Score
Cybertrol Engineering
70

SEO and PPC services for inbound lead capture and search visibility

Manual Functional TestingSecurity Testing
Agency List Score
Kendrick Labs
66
Verified

Protein analysis for pharma, academia, and industry

Accessibility TestingAutomated TestingManual Functional Testing
Agency List Score
Creativewebstandards
66

Development and dev services for inbound lead capture and search visibility

Manual Functional TestingMobile App Testing
Agency List Score
Tabdelta Solution
53
Verified

Custom AI software development and automation for enterprise and mid-sized organizations

Accessibility RemediationAccessibility TestingAndroid Development

Also in United States · 5 not ranked here

1 have not yet been assessed on the Agency List Score. Alphabetical.

About this ranking

What this page ranks

This page ranks 15 of the 19 assessed manual functional testing agencies in United States — the ones carrying a published score — out of 20 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, Manual Functional Testing in United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 19, so the strongest award available here is top 25%.

The 1 manual functional testing agency not yet assessed is listed on this page but not ranked.

A further 4 were assessed and no published evidence of their work was found, so no score is shown for them.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many manual functional testing agencies are in United States?
20 are listed on Agency List in United States. 19 of them have been assessed on the Agency List Score as of October 2026, and 15 of those carry a published score.
Which manual functional testing agency in United States is ranked highest?
Abstracta has the top Agency List Score, 97, among the 19 assessed agencies in Manual Functional Testing in United States.
Why are 5 manual functional testing agencies listed here but not ranked?
1 of the 20 listed have not yet been assessed on the Agency List Score. A further 4 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the Manual Functional Testing in United States cohort of 19 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.