- JANSEN IMPEX LP- SL021276 - Incorporated on 1 July 2015 
- RUDI JANSEN LTDDisolved- 16080145 - Dissolved on 10 June 2025 
- JP JANSEN LIMITEDDissolved- 06097502 - Dissolved on 24 September 2013 
- D. JANSEN UK LIMITED- 04851237 - Incorporated on 30 July 2003 
- MICHAEL BEN JANSEN- Born March 1986 - 22 HARCOURT ROAD DORNEY REACH, DORNEY REACH, MAIDENHEAD, UNITED KINGDOM, SL3 0DU 
- MR. MICHAEL CONAGHAN & SON LTDDissolved- NI601915 - Dissolved on 16 September 2011 
- A JANSEN LIMITEDDisolved- 08495079 - Dissolved on 4 June 2024 
- MICHAEL JOHN JANSEN- Born November 1961 - 1011 SHOALS DRIVE, ATHENS 30606-5392, GEORGIA, USA, FOREIGN 
- MICHAEL CARL JANSEN- Born November 1969 - THE TRAMPERY 13-19 BEVENDEN STREET, LONDON, UNITED KINGDOM, N1 6AS 
- MICHAEL JOHN JANSEN- Born August 1971 - 1 BARTHOLOMEW LANE, LONDON, UNITED KINGDOM, EC2N 2AX 
- Y.M. JANSEN B.V.- Boompjes 258, 3011 Xz, Rotterdam, Netherlands 
- MR DAVID MICHAEL HAMMITT LTDDisolved- 13881191 - Dissolved on 9 July 2024 
- CRAIG JANSEN LIMITED- 07276920 - Incorporated on 8 June 2010 
- JANSEN DRIVER LIMITEDActive - Proposal to Strike off- 08812760 - Incorporated on 12 December 2013 
- JANSEN CONTRACTING LTDActive - Proposal to Strike off- 08608742 - Incorporated on 15 July 2013 
- JANSEN DESIGNS LTD- 15353112 - Incorporated on 15 December 2023 
- JANSEN & KINSLEY LTDActive - Proposal to Strike off- NI686217 - Incorporated on 1 March 2022 
- JANSEN UK LIMITED- 05825808 - Incorporated on 23 May 2006 
- THE JANSEN FOUNDATION- CE028634 
- JANSEN CONSULTING LIMITED- SC332381 - Incorporated on 15 October 2007