- MR JAMES NICHOLAS POOLE- Born December 1967 - 40 GROSVENOR PLACE, VICTORIA, LONDON, SW1X 7EN 
- MARTEN GROUP LTD- 09418526 - Incorporated on 3 February 2015 
- Mr James Nicholas POOLE- Born December 1967 - 90 Whitfield Street, London, England, W1T 4EZ 
- MARTENATY LTDDisolved- 14670280 - Dissolved on 23 July 2024 
- Nicholas James, Mr. HOBBS- Born October 1974 - Saint Hill Farm Saint Hill Green, West Hoathly Road, East Grinstead, West Sussex, United Kingdom, RH19 4NG 
- MR JAMES KILMURRAY LTDDissolved- 08246972 - Dissolved on 11 February 2014 
- MARTENHALE LTD- 12945331 - Incorporated on 12 October 2020 
- JAMES BRETT MARTEN- Born October 1974 - 65 GUILDFORD WAY, THETFORD, NORFOLK, ENGLAND, IP24 1DJ 
- HUGHES NICHOLAS JAMES 0276 LIMITEDActive - Proposal to Strike off- 09332602 - Incorporated on 28 November 2014 
- James Nicholas, Mr. COATES- Born July 1982 - B.C.L. House 2 Pavilion Business Park, Royds Hall Road, Leeds, England, LS12 6AJ 
- JAMES WATTRUS MRICS LTD.- 15238343 - Incorporated on 26 October 2023 
- Nicholas James, Mr. PARKER- Born February 1953 - Beck Cottage The Street, Kelling, Holt, Norfolk, England, NR25 7EL 
- MARTENUK ENGINEERING LTD- 11820740 - Incorporated on 12 February 2019 
- MARTENS BYGG LTDActive - Proposal to Strike off- 07008725 - Incorporated on 4 September 2009 
- MARTENITSA LTDDisolved- 11857705 - Dissolved on 20 September 2022 
- MARTEN SMITH LLPDisolved- OC440372 - Dissolved on 22 August 2023 
- A MARTENS KITCHENS & BATHROOMS LTD- 09159267 - Incorporated on 4 August 2014 
- MR DAVID JAMES MARTIN LTD- 16388942 - Incorporated on 15 April 2025 
- MARTENSPEED LTD- 16183401 - Incorporated on 14 January 2025 
- EBONY MARTENZ LTD- 07630659 - Incorporated on 11 May 2011