- A.J.ALLEN LTD- 16143691 - Incorporated on 18 December 2024 
- BRIANE LTDDisolved- 13408299 - Dissolved on 24 October 2023 
- K & C J ALLEN LTD- 04693279 - Incorporated on 11 March 2003 
- J D W ALLEN LTDActive - Proposal to Strike off- 06281606 - Incorporated on 15 June 2007 
- R.A.ALLEN LTDActive - Proposal to Strike off- 07778169 - Incorporated on 19 September 2011 
- ALLEN 24 LTDActive - Proposal to Strike off- 09074179 - Incorporated on 6 June 2014 
- S & C ALLEN LTDDisolved- 13364952 - Dissolved on 22 March 2022 
- J M ALLEN LTDDisolved- 12217176 - Dissolved on 24 January 2023 - 8 Bryant Crescent, Spencers Wood, RG7 1FG 
- C. K. ALLEN LTDActive - Proposal to Strike off- 09969308 - Incorporated on 26 January 2016 
- O ALLEN LTDActive - Proposal to Strike off- 10640677 - Incorporated on 27 February 2017 
- ALLEN G 2005 LTDDisolved- 12281900 - Dissolved on 12 December 2023 
- P&B ALLEN LTD- 14216408 - Incorporated on 5 July 2022 
- J ALLEN LTDDisolved- 14449636 - Dissolved on 18 July 2023 
- MORE GREY CELLS LIMITEDDissolved- 04774818 - Dissolved on 23 June 2015 
- ALLEN & ALLEN CONSULTANTS LTD- 08408855 - Incorporated on 19 February 2013 
- ALLEN & ALLEN (WILMSLOW) LTDDisolved- 07939077 - Dissolved on 24 December 2024 
- BRIANA LTD- 14496429 - Incorporated on 21 November 2022 
- BRIANA21 LTDDisolved- 12832258 - Dissolved on 30 January 2024 
- IM.BRIAN LTD- 12062869 - Incorporated on 21 June 2019 
- ALLEN & ALLEN CONSULTING LIMITED- 05962302 - Incorporated on 10 October 2006