Software Testing Company

51Testing

Independent software testing company in Shanghai providing QA testing teams to businesses worldwide

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TrustList summary

51Testing is an independent software testing company headquartered in Shanghai, China. It supplies quality assurance testers and testing services to companies in China and abroad.

Products and services

Software testing services: a full range of QA testing carried out by professional engineers.
Testing team supply: a project team assembled quickly, which helps with changing staffing needs.
Mobile compatibility testing: cloud-hosted mobile devices used to check apps across many models.
Exploratory testing: handles varied environments, user types and test types.

Who it works with

The company reports experience in finance, real estate, eCommerce, games, logistics and catering, and says it has worked with over 700 companies in 20 industries. Requests go through a customer manager who checks feasibility before technical support begins.

Key facts

Based in: Shanghai, China
Founded: 2004
Certifications: ISO 9001, ISO 27001, ISO 20000, CMMI 5 and CNAS
Talent pool: draws on its software testing portal community

Summary written by TrustList from the business's own published information, Oct 2026.

Gallery

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Categories & features

51Testing rankings

51Testing is ranked on 3 TrustList rankings: #1 on 1, #2 on 1 and #14 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. 51Testing has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Software testing company · 3 rankings

#1of 9
Gaming
It is the only one of the 9 here listing electronics and internet.
Of the 9 here, 7 also cover information technology and 6 also cover eCommerce.
Ahead of BetterTest.
#2of 20
It
It is the only one of the 20 here listing messaging and one of 3 here listing personnel.
Its profile: “It supplies quality assurance testers and testing services to companies in China and abroad.”
Of the 20 here, 10 also cover financial services and 10 also cover medical; 2 also work in Europe.
Behind Inline Manual, ahead of Abstracta Inc..
#14of 25
Software testing
It is one of 2 here listing medical and one of 3 here listing gaming.
Its profile: “51Testing is an independent software testing company headquartered in Shanghai, China.”
Of the 25 here, 15 also cover software development and 13 also cover quality assurance.
Behind WHYTTEST, ahead of ditCraft.