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- COMPANY SECRETARIES (U.K.) LIMITED- 01758142 - Incorporated on 3 October 1983 
- ECONOMICA COMPANY SECRETARIES LIMITEDDissolved- 04342607 - Dissolved on 29 June 2021 
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- JPS COMPANY SECRETARIES LIMITED- 06715243 - Incorporated on 3 October 2008 
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- UWM COMPANY SECRETARIES LIMITEDDisolved- 05154084 - Dissolved on 13 May 2025 
- WB COMPANY SECRETARIES LIMITEDDisolved- 02601074 - Dissolved on 22 March 2022 
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- NATIONWIDE COMPANY SECRETARIES LIMITEDDisolved- 03468999 - Dissolved on 19 March 2024 
- RA COMPANY SECRETARIES LIMITEDLiquidation- 04642216 - Incorporated on 20 January 2003 
- SAVILLE COMPANY SECRETARIES LIMITED- 06884558 - Incorporated on 22 April 2009 
- RAPID COMPANY SECRETARIES LIMITED- 09125693 - Incorporated on 10 July 2014 
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- ACS COMPANY SECRETARIES LIMITED- 06751911 - Incorporated on 18 November 2008 
- ATTORNEY COMPANY SECRETARIES LIMITED- 04241891 - Incorporated on 27 June 2001 
- BRUNSWICK COMPANY SECRETARIES LIMITED- 03586188 - Incorporated on 24 June 1998 
- COMPANY SECRETARIES (SOUTH) LIMITED- 05611601 - Incorporated on 3 November 2005