- 23 LANGDON LTD- 03368285 - Incorporated on 9 May 1997 
- A. LANGDON LTDDisolved- 12098535 - Dissolved on 26 April 2022 
- TM LANGDON LTD- 14467616 - Incorporated on 7 November 2022 
- JAMES ROBERTSON SEASONING LTDActive - Proposal to Strike off- SC528718 - Incorporated on 4 March 2016 
- ROBERTO JAMES & CO LIMITEDActive - Proposal to Strike off- 08574471 - Incorporated on 18 June 2013 
- JAMES WATTRUS MRICS LTD.- 15238343 - Incorporated on 26 October 2023 
- JAMES ROBERTS DESIGN LTD- 08884073 - Incorporated on 10 February 2014 
- JAMES OLIVER ROBERTS LTD- 14574292 - Incorporated on 6 January 2023 
- MR DAVID JAMES MARTIN LTD- 16388942 - Incorporated on 15 April 2025 
- LANGDON HOUSING- 07623246 - Incorporated on 5 May 2011 
- LANGDON LIMITED- 13292837 - Incorporated on 25 March 2021 
- LANGDON AND LANGDON PROPERTIES LTDActive - Proposal to Strike off- 06823411 - Incorporated on 18 February 2009 
- LANGDONC LTDActive - Proposal to Strike off- 10142005 - Incorporated on 22 April 2016 
- AECOM PROFESSIONAL SERVICES LLP- OC306911 - Incorporated on 13 February 2004 
- MR WILLIAM ROBERT GREEN LTDDisolved- NI706592 - Dissolved on 20 May 2025 
- THE T-SHIRT GUY LIMITED- 05690529 - Incorporated on 28 January 2006 
- LANGDON COMMUNITY- 04055338 - Incorporated on 18 August 2000 
- ARTEC ELECTRICAL LIMITEDLiquidation- 08471071 - Incorporated on 3 April 2013 
- MR ANTHONY JAMES LIMITED- 12553517 - Incorporated on 9 April 2020 
- MR JAMES RICHARDSON LIMITEDDissolved- 06920581 - Dissolved on 11 January 2011