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- IAN TIMOTHY ROBERTS LIMITED- 10442953 - Incorporated on 24 October 2016 
- IAN GRAHAM PLUMBING & HEATING LIMITEDDissolved- SC421392 - Dissolved on 29 November 2013 
- IAN GRAHAM TECHNICAL SERVICES LIMITED- 03024527 - Incorporated on 21 February 1995 
- IAN ROBERTSON BRUCE LIMITED- SC064280 - Incorporated on 10 March 1978 
- MR GAVIN ROBERT DORMAN LTDDisolved- 15364831 - Dissolved on 27 August 2024 
- PAUL ROBERT GRAHAM BOLTING LTDActive - Proposal to Strike off- 11581698 - Incorporated on 21 September 2018 
- MR DAVID ROBERT WEAVER LTD.Active - Proposal to Strike off- 15543865 - Incorporated on 6 March 2024 
- MR ROBERTS FORMAL HIRE LTD- 12189222 - Incorporated on 4 September 2019 
- ROBERT GRAHAM PRICE DEVELOPMENTS LIMITED- 04622827 - Incorporated on 20 December 2002 
- MR ROBERT L BILLINGSLEY LTDActive - Proposal to Strike off- 08657768 - Incorporated on 20 August 2013 
- MACDONALD (IAN ROBERT) DEVELOPMENTS LIMITEDDisolved- 06369452 - Dissolved on 3 January 2023 
- CYFRIFON IAN ROBERTS LIMITED- 05417956 - Incorporated on 7 April 2005 
- MR WILLIAM ROBERT GREEN LTDDisolved- NI706592 - Dissolved on 20 May 2025 
- IAN O. ROBERTSON SERVICES LIMITEDLiquidation- SC077060 - Incorporated on 24 December 1981 
- IAN ROBERTS CONSULTANCY LIMITEDDissolved- 09969349 - Dissolved on 22 October 2019 
- GRAHAM ROBERTS PLASTICS LIMITED- 00956783 - Incorporated on 24 June 1969 
- IAN ROBERTS INVESTIGATIONS LIMITEDDissolved- 07474937 - Dissolved on 16 June 2015 
- MR STUART A ROBERTSON LIMITED- 11864149 - Incorporated on 6 March 2019 
- MR. PAUL MICHAEL ROBERTSON LTD- 15986119 - Incorporated on 30 September 2024