- IAN SMALLMAN- Born April 1969 - 18 BLUEBELL DRIVE, SPENNYMOOR, COUNTY DURHAM, DL16 7YF 
- ROB SMALLMAN- Born March 1969 - 48 BOTANIC ROAD, SOUTHPORT, PR9 7NE 
- IAN SMALLMAN- Born October 1971 - 14 BROOK, WILLIAMSTOWN, TONYPANDY, R.C.T, WALES, CF40 1RB 
- ROBBERT-JAN VRUGT- Born January 1974 - 40 BLAAK, ROTTERDAM, 3011TA, THE NETHERLANDS 
- CALUMITE LIMITED- 00948298 - Incorporated on 19 February 1969 
- CALUM KERR LIMITEDDisolved- SC702574 - Dissolved on 8 August 2023 
- CALUM INNES LIMITEDDissolved- 07479692 - Dissolved on 16 October 2012 
- CALUM MACLEOD LIMITEDActive - Proposal to Strike off- 08474373 - Incorporated on 5 April 2013 
- CALUM ERRICKSON LIMITEDDisolved- 11383598 - Dissolved on 26 October 2021 
- CALUM MCPHAIL LIMITEDDissolved- 10367577 - Dissolved on 15 October 2019 
- CALUM BARBER LIMITED- 16567537 - Incorporated on 8 July 2025 
- ROAD TO CALUM LIMITEDActive - Proposal to Strike off- 08113301 - Incorporated on 20 June 2012 
- CALUM KIPPEN JOINER AND CONTRACTOR LIMITED- SC334027 - Incorporated on 16 November 2007 
- SMALLMAN LUBRICANTS (HEREFORD) LIMITEDDissolved- 01057134 - Dissolved on 22 January 2013 
- CALUMPANG LIMITED- 09309939 - Incorporated on 13 November 2014 
- CALUMLY COMPANY LTDDisolved- 14043451 - Dissolved on 19 September 2023 
- CALUM LAWSON GOLF LTD- SC586172 - Incorporated on 19 January 2018 - Strathaven Golf Club Glasgow Road Strathaven Lanarkshire, ML10 6NL, ML10 6NL 
- CALUMFYFE LIMITED- 14307634 - Incorporated on 19 August 2022 
- GARY LTDDisolved- 13493299 - Dissolved on 12 September 2023 
- GARY'S LTDActive - Proposal to Strike off- 09651444 - Incorporated on 22 June 2015