- SOFTWARE QA SERVICES LIMITEDActive - Proposal to Strike off- 10397354 - Incorporated on 27 September 2016 
- ASTWOOD QA SERVICES LIMITED- 10597334 - Incorporated on 2 February 2017 
- GKS QA SERVICES LIMITEDActive - Proposal to Strike off- 10736433 - Incorporated on 24 April 2017 
- QA CONSULTING SERVICES LIMITED- 14147440 - Incorporated on 1 June 2022 
- MINDU QA SERVICES LIMITEDDisolved- 15758597 - Dissolved on 8 October 2024 
- QAAF BY QAIS LIMITED- 14827975 - Incorporated on 26 April 2023 
- QAISER SERVICES LTDDisolved- 15427836 - Dissolved on 1 July 2025 
- SEARS QA SERVICES LTD- 09433710 - Incorporated on 11 February 2015 
- PRIME QA SERVICES LTDDisolved- 12872529 - Dissolved on 25 October 2022 
- G.B QA SERVICES LIMITEDActive - Proposal to Strike off- 11349193 - Incorporated on 8 May 2018 
- LETTOI CO., LTD.- 13261598 - Incorporated on 12 March 2021 
- QAQ79 LTD- 11674462 - Incorporated on 13 November 2018 
- SK-QA LTD- 12862247 - Incorporated on 7 September 2020 
- 1ST QA LTD- 11951692 - Incorporated on 17 April 2019 
- DC-QA LTD- 06295602 - Incorporated on 28 June 2007 
- L&H 32QAG LLPActive - Proposal to Strike off- OC372906 - Incorporated on 28 February 2012 
- FJ-QA LTDActive - Proposal to Strike off- 07897138 - Incorporated on 4 January 2012 
- SQ QA LTDDisolved- 14133313 - Dissolved on 2 July 2024 
- 40 QAG LTDregistered- OE016988 - Incorporated on 24 January 2023 
- QAL LTDActive - Proposal to Strike off- 15530908 - Incorporated on 28 February 2024