| THOM, Raymond Charles ACTIVE | Secretary | 01 Aug 2022 | | | | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| BORTHWICK, Alistair ACTIVE | Director | 21 Jan 2026 | | United Kingdom | June 1979 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| KIRKLAND, Craig ACTIVE | Director | 21 Jan 2026 | | United Kingdom | January 1975 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| MCGOWAN, Alistair ACTIVE | Director | 01 Aug 2022 | | United Kingdom | February 1983 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| MUNRO, Mark ACTIVE | Director | 12 Jan 2015 | | United Kingdom | March 1970 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| SHEPHERD, Liam ACTIVE | Director | 21 Jan 2026 | | United Kingdom | May 1992 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| THOM, Raymond Charles ACTIVE | Director | 20 Oct 2023 | | Scotland | May 1978 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| VERNON, Andrew Robert Richard ACTIVE | Director | 01 Apr 2013 | | Scotland | August 1979 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| VON HOF, Emma Mary ACTIVE | Director | 18 Apr 2017 | | United Kingdom | October 1983 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| HILL, Alan RESIGNED | Secretary | 10 Nov 2020 | 23 Jun 2022 | | | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| O'BOYLE, Graham RESIGNED | Secretary | 31 Mar 1992 | 01 Apr 2010 | | | 56 Moorburn Road, Largs, Ayrshire, KA30 9HY |
| TOYN, Charles Clifford RESIGNED | Secretary | 01 Apr 2010 | 31 May 2020 | | | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| CRUMLISH, Jamie RESIGNED | Director | 01 Jul 2020 | 30 Sep 2022 | Scotland | December 1978 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| GILL, Justin Matthew RESIGNED | Director | 12 Jan 2015 | 13 Feb 2024 | Scotland | July 1972 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| HILL, Alan George RESIGNED | Director | 10 Nov 2020 | 23 Jun 2022 | Scotland | November 1967 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| MCNAUGHTON, Robert RESIGNED | Director | 01 May 2008 | 21 Jan 2026 | United Kingdom | January 1966 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| MUIR, Gordon Archibald Halliday RESIGNED | Director | 31 Mar 1992 | 30 Apr 2011 | Scotland | June 1943 | Muirfield 20a Fullerton Drive, Seamill, Ayrshire, KA23 9HT, Scotland |
| MURRAY, Charles Douglas RESIGNED | Director | 31 Mar 1992 | 31 Mar 2015 | United Kingdom | September 1945 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| O'BOYLE, Graham RESIGNED | Director | 01 Apr 2009 | 08 Dec 2016 | United Kingdom | December 1956 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| TOYN, Charles Clifford RESIGNED | Director | 01 Apr 2015 | 31 May 2020 | Scotland | August 1966 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| VERNON, Greville Edward Mervyn RESIGNED | Director | 31 Mar 1992 | 18 Apr 2017 | England | July 1944 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| VERNON, Hugh Richard Mervyn RESIGNED | Director | 31 Mar 1992 | 18 Apr 2017 | Scotland | January 1947 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |
| VERNON, James Fitzpatrick Greville RESIGNED | Director | 08 Dec 2016 | 13 Mar 2024 | England | December 1971 | Hillhouse Quarry, Troon, Ayrshire, KA10 7HX |