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- N ATACK LTDActive - Proposal to Strike off- 12461579 - Incorporated on 13 February 2020 
- C. D. ATACK LTD- 14152728 - Incorporated on 6 June 2022 
- ATACC UK LTDActive - Proposal to Strike off- 04634607 - Incorporated on 13 January 2003 
- VAT-ATAC LTD.- SC179293 - Incorporated on 2 October 1997 
- ATAC RETAIL LTD- 16464460 - Incorporated on 21 May 2025 
- ATACHH LTDActive - Proposal to Strike off- 11589093 - Incorporated on 26 September 2018 
- ATACAMA MULTIMEDIA LIMITEDActive - Proposal to Strike off- 06289125 - Incorporated on 21 June 2007 
- ATAC LIMITED- 04559636 - Incorporated on 10 October 2002 
- ATACK INK LTDDisolved- 13318086 - Dissolved on 13 September 2022 
- ATACARA LTD- 16338077 - Incorporated on 24 March 2025 
- ATACADO LTDDisolved- 13033433 - Dissolved on 24 January 2023 
- ATACOST LTDDisolved- 11534999 - Dissolved on 8 February 2022 
- ATACAMA VI LTDActive - Proposal to Strike off- 07200883 - Incorporated on 24 March 2010 
- ATAC TILES LTD- 13555647 - Incorporated on 9 August 2021 
- ATAC COMPUTERS LIMITEDDissolved- 05665661 - Dissolved on 2 November 2010 
- ATAC SOLUTIONS LIMITED- 06242867 - Incorporated on 10 May 2007 
- ATAC SERVICES LIMITED- 11835150 - Incorporated on 19 February 2019