- COOPER HAYNES LIMITED- 13995468 - Incorporated on 22 March 2022 
- HAYNES RETAIL LIMITEDActive - Proposal to Strike off- 06913125 - Incorporated on 21 May 2009 
- SALLY HAYNES LIMITED- 07057024 - Incorporated on 26 October 2009 
- HAYNES AGRICULTURAL LIMITED- 02652226 - Incorporated on 8 October 1991 
- RICHARD HAYNES LIMITED- 04897655 - Incorporated on 12 September 2003 
- HAYNES CONSTRUCTION LIMITED- 05685547 - Incorporated on 24 January 2006 
- HAYNES BUILDERS LIMITEDLiquidation- 07201435 - Incorporated on 24 March 2010 
- HAYNES FURNITURE LIMITEDActive - Proposal to Strike off- 07263500 - Incorporated on 24 May 2010 
- HAYNES CONSULTING LIMITED- 06387552 - Incorporated on 2 October 2007 
- HAYNES FARMS LIMITED- 01367504 - Incorporated on 9 May 1978 
- HAYNES SURVEYING LTDDissolved- 06227433 - Dissolved on 30 October 2012 
- HAYNES TECHNOLOGIES LIMITEDLiquidation- 08311279 - Incorporated on 28 November 2012 
- JOHNSON HAYNES LIMITEDActive - Proposal to Strike off- 08313274 - Incorporated on 29 November 2012 
- HAYNES INVESTMENTS LIMITED- 09339292 - Incorporated on 3 December 2014 
- ERNEST HAYNES LIMITEDLiquidation- 09238399 - Incorporated on 29 September 2014 
- HAYNES DISTRIBUTORS LTDDisolved- 12235980 - Dissolved on 2 January 2024 
- HAYNES MECHANICAL LIMITED- 11450184 - Incorporated on 5 July 2018 
- GODDEN & HAYNES LIMITEDActive - Proposal to Strike off- 10752173 - Incorporated on 3 May 2017 
- BEASLEY HAYNES LIMITED- 10381566 - Incorporated on 17 September 2016 
- HAYNES MARCOMS LIMITED- 11814958 - Incorporated on 8 February 2019 - 13 Oxford Road, Boscombe, BH8 8GS