- STEFF PSICOLOGIA LTD- 15584968 - Incorporated on 22 March 2024 
- STEFF DAY LIMITED- 16345167 - Incorporated on 26 March 2025 
- STEFFI LIMITEDDissolved- 08166338 - Dissolved on 10 December 2013 
- STEFFCONSTRUCT LTDDisolved- 15152049 - Dissolved on 25 February 2025 
- HARDINGS & HARDINGS LLP- OC435612 - Incorporated on 18 February 2021 
- HARDING AND HARDING LTD- 11657888 - Incorporated on 5 November 2018 
- STEFFI STORE LTD- 09865400 - Incorporated on 10 November 2015 
- IWAN STEFFAN LTD- 15319239 - Incorporated on 30 November 2023 
- STEFFY LIMITEDActive - Proposal to Strike off- 09578600 - Incorporated on 7 May 2015 
- STEFFENSEN LTDActive - Proposal to Strike off- 12245102 - Incorporated on 4 October 2019 
- E STEFFLOGISTIC LTDDisolved- 10565910 - Dissolved on 7 December 2021 
- PONT STEFFAN LTD- 15248767 - Incorporated on 31 October 2023 
- STEFFY AUTOS LTD- 15659075 - Incorporated on 18 April 2024 
- STEFFI HEART LTD- 09231413 - Incorporated on 23 September 2014 
- STEFFA TRANS LTDActive - Proposal to Strike off- 15852555 - Incorporated on 22 July 2024 
- STEFF CARPENTRY LTD- 06480655 - Incorporated on 23 January 2008 
- STEFF DEVELOPMENT LTDActive - Proposal to Strike off- 09355736 - Incorporated on 15 December 2014 
- STEFF SERVICES LIMITED- 10021175 - Incorporated on 23 February 2016 
- SOLOMON STEFF LTD- 11836950 - Incorporated on 20 February 2019 
- STEFF LOGISTICS LIMITEDDisolved- 14461927 - Dissolved on 16 April 2024