| MILLNS, Lynn Margaret ACTIVE | Secretary | 01 Feb 2016 | | | | 2, Guildford Business Park, Guildford, GU2 8XG, England |
| LUMSDEN, Bren Diane ACTIVE | Director | 09 Feb 2024 | | United Kingdom | February 1972 | 3, Guildford Business Park, Guildford, Surrey, GU2 8XG, United Kingdom |
| MILLNS, Lynn Margaret ACTIVE | Director | 01 Feb 2016 | | England | October 1968 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XG, England |
| ARMSTRONG, Martin Robert RESIGNED | Secretary | 10 Aug 2009 | 01 Feb 2016 | | | 46 Ingram Road, Thornton Heath, Surrey, CR7 8EB |
| LUXFORD, Alan Frank RESIGNED | Secretary | 01 Feb 2007 | 31 May 2009 | | | 25 Ridgeside Avenue, Patcham, Brighton, BN1 8WD |
| ACI SECRETARIES LIMITED RESIGNED | Secretary | 26 Jan 2007 | 01 Feb 2007 | | | 7 Leonard Street, London, EC2A 4AQ |
| ARMSTRONG, Martin Robert RESIGNED | Director | 25 Aug 2011 | 01 Feb 2016 | England | July 1956 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XG, England |
| DE WEERT, Rob Jozef Lambertus RESIGNED | Director | 02 Oct 2018 | 21 Jan 2020 | England | March 1984 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XG, England |
| DENNY, Maria Anna Katarina RESIGNED | Director | 05 Aug 2020 | 09 Feb 2024 | England | January 1977 | Unit 3, Guildford Business Park, Guildford, GU2 8XG, England |
| LUMSDEN, Bren Diane RESIGNED | Director | 22 Jan 2020 | 05 Aug 2020 | United Kingdom | February 1972 | Unit 3, Guildford Business Park, Guildford, GU2 8XG, England |
| MANNING, Michael RESIGNED | Director | 27 Sep 2010 | 25 Aug 2011 | Usa | October 1965 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XH |
| SECREST, Andre RESIGNED | Director | 13 Sep 2017 | 27 Sep 2018 | Netherlands | September 1977 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XG, England |
| TRANTER, Graham RESIGNED | Director | 31 Dec 2015 | 01 Feb 2016 | United Kingdom | November 1960 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XH, England |
| VIVASH, Hayden Paul RESIGNED | Director | 25 Aug 2011 | 15 Dec 2015 | England | February 1965 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XH |
| WARAN, Prem RESIGNED | Director | 01 Feb 2016 | 13 Sep 2017 | United Kingdom | June 1969 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XG, England |
| ACI DIRECTORS LIMITED RESIGNED | Nominee Director | 26 Jan 2007 | 01 Feb 2007 | | | 2nd Floor, 7 Leonard Street, London, EC2A 4AQ |
| GENLYTE THOMAS GROUP LLC RESIGNED | Director | 01 Feb 2007 | 25 Aug 2011 | | | Philips Professional Luminaires, 3 Burlington Woods Drive, 3rd Floor,, Burlington, Massachusetts, 01803, Usa |