| LU, Lily Joann ACTIVE | Secretary | 04 Feb 2019 | | | | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| ARRIGONI, Ellen Adelaide ACTIVE | Director | 20 Dec 2023 | | United States | June 1964 | One Idexx Drive, Westbrook, Maine, 04092, United States |
| CHADBOURNE, Jeffery Donn ACTIVE | Director | 27 Apr 2018 | | United States | September 1975 | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| LU, Lily Joann ACTIVE | Director | 04 Feb 2019 | | United States | March 1972 | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| BALDWIN, Philip RESIGNED | Secretary | 11 Feb 2000 | 01 Apr 2005 | | | 119 Willifield Way, London, NW11 6YE |
| COOPER, Ashley Stephen Charles RESIGNED | Secretary | | 28 Aug 1992 | | | 14 Eastbury Avenue, Northwood, Middlesex, HA6 3LG |
| DEADY, Conan Ritchie RESIGNED | Secretary | 01 Apr 2005 | 08 Mar 2013 | | | 48 Upper Mast Landing Road, Freeport, Me 04032, Usa |
| FIARMAN, Jeffrey A RESIGNED | Secretary | 16 Sep 2013 | 01 Sep 2014 | | | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States Of America |
| FULLICK, Karen RESIGNED | Secretary | 23 Dec 1994 | 11 Feb 2000 | | | 22 Fairfields, Great Kingshill, High Wycombe, Buckinghamshire, HP15 6EP |
| KIRKNESS, James Henry Magnuson RESIGNED | Secretary | 31 Aug 1992 | 23 Dec 1994 | | | 9 Rue Des Sorrieres, 92190 Meudon, France, FOREIGN |
| STUDER, Jacqueline RESIGNED | Secretary | 01 Sep 2014 | 04 Feb 2019 | | | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| REED SMITH CORPORATE SERVICES LIMITED RESIGNED | Secretary | 01 Apr 2005 | 02 Jan 2018 | | | The Broadgate Tower, Third Floor, 20 Primrose Street, London, EC2A 2RS, United Kingdom |
| AYERS, Jonathan Wight RESIGNED | Director | 23 Jan 2002 | 14 Apr 2006 | | March 1956 | 83 Vaughan Street, Portland, Me 04102, Usa |
| BACHOFNER, Ernst RESIGNED | Director | 06 Jan 1997 | 26 Jun 1997 | | August 1944 | Brentwood Manor, Ravine Drive, Yarmouth, Maine, 04021, Usa |
| BLANCHE JR, Willard R RESIGNED | Director | 27 Apr 2018 | 20 Dec 2023 | United States | March 1974 | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| COOPER, Ashley Stephen Charles RESIGNED | Director | | 28 Aug 1992 | | October 1960 | 14 Eastbury Avenue, Northwood, Middlesex, HA6 3LG |
| CROSSMAN, Barry RESIGNED | Director | 06 Jan 1997 | 23 Jul 1997 | | December 1954 | 19 Carleton Close, Hook, Hampshire, RG27 9NB |
| GILBERT, Alain RESIGNED | Director | | 31 Aug 1993 | | April 1948 | 15 Route De Lane Faisanderie, 78110 Le Vesinet, FOREIGN, France |
| KIRKNESS, James Henry Magnuson RESIGNED | Director | 31 Aug 1992 | 23 Dec 1994 | | October 1945 | 9 Rue Des Sorrieres, 92190 Meudon, France, FOREIGN |
| KOELEMAN, Monique Birgitta RESIGNED | Director | 14 Apr 2006 | 31 Mar 2016 | | November 1969 | Scorpius 60 Building F, Hoofddorp, 2132 LR, Netherlands |
| LOWERY, Christopher Scott RESIGNED | Director | 10 Nov 1995 | 06 Jan 1997 | | April 1963 | 4 Cavendish Road, Chesham, Buckinghamshire, HP5 1RW |
| MCKEON, Brian Patrick RESIGNED | Director | 23 Jan 2017 | 26 Sep 2019 | United States | March 1962 | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| MCPARTLAN, Susan Rolande RESIGNED | Director | 28 Mar 2003 | 14 Apr 2006 | | November 1962 | 4 Hidden Creek Drive, Scarborough, Maine, 04074, Usa |
| MORTON, John Royal RESIGNED | Director | 08 Mar 2013 | 27 Apr 2018 | United States | March 1965 | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| POLLOCK, Louis RESIGNED | Director | 23 Dec 1994 | 06 Jan 1997 | | November 1953 | 34 High Rock Road, York, Maine, 03909, Usa |
| RAINES, Merilee RESIGNED | Director | 14 Apr 2006 | 08 Mar 2013 | | April 1955 | 21, Cole Field, Cape Elizabeth, Maine 04107, Usa |
| RYAN, Sean Michael RESIGNED | Director | 26 Jun 1997 | 12 Jul 2000 | | July 1962 | Milton Court, Churchfield Road, Chalfont St Peter, Gerrards Cross, Buckinghamshire, SL9 9EW |
| RYAN, Sean Michael RESIGNED | Director | 18 Oct 1992 | 10 Nov 1995 | | July 1962 | 27 Grove Road, Beaconsfield, Buckinghamshire, HP9 1UR |
| SHAW, David E RESIGNED | Director | 28 Mar 1990 | 23 Jan 2002 | | April 1951 | 400 Danforth Street, Portland, Maine 04102, Usa |
| STUDER, Jacqueline RESIGNED | Director | 31 Mar 2016 | 04 Feb 2019 | United States | February 1959 | Idexx Laboratories Inc., One Idexx Drive, Westbrook, Maine, 04092, United States |
| TYE, Paul RESIGNED | Director | 23 Jul 1997 | 28 Jul 2020 | United Kingdom | May 1965 | Riverside House, Riverside Walk, Windsor, Berkshire, SL4 1NA, United Kingdom |
| VAN KUIJK, Yvonne RESIGNED | Director | 09 Feb 2001 | 28 Mar 2003 | | September 1952 | Esdoornlaan 8, Poppel, 2382, Belgium |
| WILLIAMS, Michael James RESIGNED | Director | 31 Mar 2016 | 02 Nov 2016 | Netherlands | August 1967 | Idexx Europe B.V., Scorpius 60 Building F, Hoofddorp, 2132 LR, Netherlands |