| BIGNELL, Michael James ACTIVE | Secretary | 01 Sep 2021 | | | | Knauf Insulation Limited, Stafford Road, St. Helens, Merseyside, WA10 3LZ, United Kingdom |
| BOSSAN, Dominique François Henri ACTIVE | Director | 16 Feb 2024 | | Belgium | March 1965 | Knauf Insulation Limited, Stafford Road, St. Helens, Merseyside, WA10 3LZ, United Kingdom |
| DUCARME, David Charles ACTIVE | Director | 01 Sep 2021 | | Belgium | March 1970 | Knauf Insulation Limited, Stafford Road, St. Helens, Merseyside, WA10 3LZ, United Kingdom |
| FLAHERTY, Lisa ACTIVE | Director | 09 Dec 2024 | | United Kingdom | September 1978 | Knauf Insulation Limited, Stafford Road, St. Helens, Merseyside, WA10 3LZ, United Kingdom |
| HARGREAVES, Neil James ACTIVE | Director | 01 May 2011 | | England | October 1976 | Knauf Insulation Limited, Stafford Road, St. Helens, Merseyside, WA10 3LZ, United Kingdom |
| LAURENT, Alexandre ACTIVE | Director | 15 Mar 2019 | | United Kingdom | February 1982 | Knauf Insulation Limited, Stafford Road, St. Helens, Merseyside, WA10 3LZ, United Kingdom |
| CORF, Derek RESIGNED | Secretary | | 19 Jul 1994 | | | Moss Nook 28 Mossborough Road, St Helens, Merseyside, WA11 8QN |
| FRIMSTON, John Michael RESIGNED | Secretary | 19 Jul 1994 | 21 Aug 2000 | | | 14 West Drive, Neston, Cheshire, CH64 0SA |
| GRIMES, David Peter Justus RESIGNED | Secretary | 07 Apr 2003 | 01 Sep 2021 | | | PO BOX 10, Stafford Road, St Helens, Merseyside, WA10 3NS |
| ROGERS, Joseph Anthony RESIGNED | Secretary | 21 Aug 2000 | 07 Apr 2003 | | | 23 Stoneacre Gardens, Appleton, Warrington, Cheshire, WA4 5ET |
| BLACKBURN, Roland RESIGNED | Director | 28 Sep 1999 | 21 Aug 2000 | | March 1946 | Rose Cottage, Hill Lane, Broxton, Chester, CH3 9HT |
| BRAKE, James Alan RESIGNED | Director | 15 Aug 1994 | 03 Dec 1997 | | May 1943 | 6 Kertley, Fleckney, Leicester, Leicestershire, LE8 8TH |
| CARMAN, Thomas RESIGNED | Director | 16 Jun 1994 | 17 Jun 1997 | | August 1957 | 3 Yew Tree Close, Wilmslow Park, Wilmslow, Cheshire, SK9 2DW |
| CLARKE, Roy RESIGNED | Director | | 02 Jun 1994 | England | March 1946 | 35 The Common, Parbold, Wigan, Lancashire, WN8 7EA |
| CORF, Derek RESIGNED | Director | | 19 Jul 1994 | England | April 1946 | Moss Nook 28 Mossborough Road, St Helens, Merseyside, WA11 8QN |
| DAWSON, James Norman RESIGNED | Director | | 19 Jul 1994 | | February 1933 | 4 Milton Drive, Ormskirk, Lancashire, L39 4QU |
| DESLYPERE, Frédéric Marc RESIGNED | Director | 21 Aug 2018 | 31 Dec 2021 | Belgium | April 1962 | PO BOX 10, Stafford Road, St Helens, Merseyside, WA10 3NS |
| FAIRLEY, Donald Grant RESIGNED | Director | | 29 Jun 1998 | | August 1942 | 10 Gainsborough Close, Camberley, Surrey, GU15 3UE |
| FORBES, John Durie RESIGNED | Director | | 28 Sep 1999 | | November 1940 | 47 Freshfield Road, Formby, Liverpool, Merseyside, L37 3HL |
| GRUNWELL, Peter Higson RESIGNED | Director | | 01 Jul 1993 | United Kingdom | December 1936 | Woodfield Croasdale Drive, Parbold, Wigan, Lancashire, WN8 7HR |
| HAVARD, Alan David, Dr RESIGNED | Director | | 02 Jun 1994 | England | May 1940 | 78 Trafalgar Road, Southport, Merseyside, PR8 2NJ |
| HOLTON, Keven Roy RESIGNED | Director | 01 Nov 1993 | 28 Sep 1999 | England | October 1954 | 1 Ridge Park, Bramhall, Stockport, Cheshire, SK7 2BJ |
| JEFFERIES, John RESIGNED | Director | 17 Jun 1997 | 21 Aug 2000 | Great Britain | October 1962 | 6 Heatherleigh, Caldy, Wirral, Merseyside, CH48 1QZ |
| KARCHER, Richard Whitmore RESIGNED | Director | 04 Sep 1998 | 28 Sep 1999 | | May 1953 | Avenue Du Mandir 99, Waterloo 1410, Brussels Belgium, FOREIGN |
| KARCHER, Richard W RESIGNED | Director | 16 Jun 1994 | 17 Jun 1997 | | May 1953 | 17 Brackenwood Drive, Cheadle, Cheshire, SK8 1JX |
| KATSERS, Guy RESIGNED | Director | 21 Aug 2000 | 30 Sep 2002 | | June 1950 | Avenue De La Chapelle 12, 1200 Brussels, 1200, Belgium |
| KNAUF, Carl Rudolf Thies RESIGNED | Director | 22 Dec 2015 | 21 Aug 2018 | Germany | January 1938 | PO BOX 10, Stafford Road, St Helens, Merseyside, WA10 3NS |
| KNOOP, Yoram RESIGNED | Director | 21 Aug 2000 | 28 Feb 2003 | | August 1969 | Graaf Withmanlaan 54, Bussum, 1405 Hc, Holland |
| KNOWLTON, Warren Decatur RESIGNED | Director | 16 Jun 1994 | 17 Jun 1997 | | July 1946 | 29709 Somerset, Perrysburg, Ohio 43551, Usa |
| NIGHTINGALE, Glen RESIGNED | Director | 01 Jul 1993 | 02 Jun 1994 | United Kingdom | November 1939 | Merrifield House 3 Chelford Lane, Over Peover, Knutsford, Cheshire, WA16 8UG |
| NILSSON, Jens Olof RESIGNED | Director | 01 May 2011 | 21 Aug 2018 | Germany | October 1971 | PO BOX 10, Stafford Road, St Helens, Merseyside, WA10 3NS |
| ROBSON, Michael Anthony RESIGNED | Director | 28 May 2002 | 18 Dec 2015 | England | November 1954 | Littlemead Knockholt Road, Halstead, Sevenoaks, Kent, TN14 7EU |
| ROGERS, Joseph Anthony RESIGNED | Director | 28 Sep 1999 | 29 Dec 2011 | United Kingdom | September 1958 | 23 Stoneacre Gardens, Appleton, Warrington, Cheshire, WA4 5ET |
| SANTICOLI, Jean Francois RESIGNED | Director | 21 Aug 2000 | 31 Dec 2002 | | October 1953 | Meerlaan 203, Overijse, 3090, Belguim |
| SEARSON, Hugh Mager RESIGNED | Director | | 02 Jun 1994 | | February 1941 | Oakum Tan House Close, Parbold, Wigan, Lancashire, WN8 7HH |
| SINFIELD, John Haydn RESIGNED | Director | 01 May 2011 | 28 Feb 2019 | England | December 1965 | PO BOX 10, Stafford Road, St Helens, Merseyside, WA10 3NS |
| SOMERVILLE, Ronald Dennis Neale RESIGNED | Director | | 02 Jun 1994 | | September 1929 | Holywell House Holywell, East Coker, Yeovil, Somerset, BA22 9NQ |
| VANDESTRICK, Pierre Yves RESIGNED | Director | 21 Aug 2000 | 15 Jun 2005 | | August 1963 | Avenue Victor Rousseau 31, Brussels, 1190, Belgium |