Factbase category report · Updated Aug 2026

Top 10
QA Testing Companies

An editorial guide to established qa testing companies, selected for relevant services, specialization, public work and market presence.

Best forShortlisting experienced partners
Primary signalRelevant service specialization
CoverageGlobal companies
Ranking typeEditorial assessment
The shortlist

Top 10 companies

Ranked using public company information, specialization, client feedback and market presence.

01

Abstracta

A software testing company focused on quality engineering, performance and automation.

Quality engineeringPerformance testingTest automation
Location
San Francisco, United States
Founded
2008
02

Keywords Studios

An international services provider supporting game development, art, testing, localization and player support.

Co-developmentGame artQuality assurance
Location
Dublin, Ireland
Founded
1998
03

Room 8 Group

A game development and external production group spanning art, engineering, QA and creative services.

Co-developmentGame artQuality assurance
Location
Limassol, Cyprus
Founded
2011
04

Qualitest

A quality engineering company providing testing, automation and assurance services.

Quality engineeringTest automationAccessibility testing
Location
London, United Kingdom
Founded
1997
05

Testlio

A software testing company combining a managed freelance network with a testing platform.

Managed testingMobile testingLocalization testing
Location
Austin, United States
Founded
2012
06

QA Wolf

A software testing service focused on automated end-to-end test coverage.

Test automationEnd-to-end testingQA operations
Location
Seattle, United States
Founded
2019
07

Cigniti

A digital assurance and quality engineering company, part of Coforge.

Quality engineeringTest automationPerformance testing
Location
Hyderabad, India
Founded
1998
08

TestingXperts

A quality engineering and software testing services provider.

Quality engineeringTest automationDevOps testing
Location
Mechanicsburg, United States
Founded
2013
09

Applause

A digital quality company using a global testing community for real-world product validation.

CrowdtestingAccessibility testingPayments testing
Location
Framingham, United States
Founded
2007
10

Global App Testing

A crowdtesting platform for functional, localization and user-experience testing.

CrowdtestingLocalization testingFunctional testing
Location
London, United Kingdom
Founded
2013
At a glance

Company comparison

CompanyHeadquartersFoundedSelected servicesTechnology
AbstractaSan Francisco, United States2008Quality engineering, Performance testingAutomation, Performance testing
Keywords StudiosDublin, Ireland1998Co-development, Game artMulti-engine production, Console platforms
Room 8 GroupLimassol, Cyprus2011Co-development, Game artUnity, Unreal Engine
QualitestLondon, United Kingdom1997Quality engineering, Test automationAutomation frameworks, AI testing
TestlioAustin, United States2012Managed testing, Mobile testingTest management, Device testing
Selection notes

How we selected these companies

Factbase considers relevant services, technology expertise, years in business, public portfolios, client feedback and geographic reach. Rankings are editorial judgments, not mathematically objective scores.

Read the full methodology →
Buyer’s guide

What to look for

  • Direct experience with the project type you are commissioning.
  • A clear delivery model, realistic milestones and named responsibilities.
  • Evidence that is recent, relevant and attributable.
  • References whose scope resembles your own brief.
Practical questions

FAQ

How often does Factbase review this ranking?

We revisit category pages when material public information changes and date each report so readers can judge its freshness.

Can a company pay for a ranking position?

No. Commercial relationships do not determine editorial order. Any future sponsored placement would be labeled clearly.

Should I contact more than one company?

Yes. A short discovery conversation with two or three relevant teams is usually the clearest way to compare working style, scope and cost.