- IMPACT QA SERVICES LTD- 13506549 - Incorporated on 12 July 2021 
- IMPACT QA LIMITEDDissolved- 07387308 - Dissolved on 8 May 2012 
- EY US UK SERVICES LLC- FC030236 - Incorporated on 17 November 2009 
- QADEER ENTERPRISES LLC LIMITEDDisolved- 14307771 - Dissolved on 23 January 2024 
- SERVER TECHNOLOGY INTERNATIONAL, LLCConverted / Closed- FC026716 - Dissolved on 21 October 2021 
- QAPITOL QA SERVICES PVT. LTDDisolved- 09992577 - Dissolved on 30 January 2024 
- GLAS TRUST COMPANY LLC- FC033210 - Incorporated on 23 March 2016 
- CSCP LTDDisolved- 07927225 - Dissolved on 21 February 2023 
- VITEOS SERVICES - UK BRANCHConverted / Closed- FC028451 - Dissolved on 8 February 2022 
- PWAR LTDregistered- OE012021 - Incorporated on 10 January 2023 
- NTG SERVICES LLCclosed- BR004855 - Incorporated on 1 December 1998 
- GCH SERVICES, LLC- FC028269 - Incorporated on 1 March 2008 
- QAMCA UK C.I.C.- 14997306 - Incorporated on 12 July 2023 
- Q88 LLC- FC033712 - Incorporated on 8 May 2015 
- A1X LLC- FC042522 - Incorporated on 30 April 2025 
- FORD RAIL LTDDisolved- 12378379 - Dissolved on 20 June 2023 
- QA SERVICES LIMITED- 06366365 - Incorporated on 11 September 2007 
- LLCL SERVICES LTD- 07999021 - Incorporated on 21 March 2012 
- AAH LONDON LTDActive - Proposal to Strike off- 10961278 - Incorporated on 13 September 2017 
- EY US UK SERVICES LLCopen- BR015231 - Incorporated on 17 November 2009