| GALLI, Jon ACTIVE | Secretary | 26 Jul 2024 | | | | 251, Ballardvale Street, Wilmington, Massachusetts, MA 01887, United States |
| AMINI, Samira ACTIVE | Director | 26 Jul 2024 | | United States | April 1983 | 639, Wellesley Street, Weston, Massachusetts, MA 02493, United States |
| DUNN, Colin ACTIVE | Director | 01 Sep 2015 | | England | November 1967 | Charles River, Manston Road, Margate, Kent, CT9 4LT, England |
| GALLI, Jon ACTIVE | Director | 26 Jul 2024 | | United States | November 1982 | 251, Ballardvale Street, Wilmington, Massachusetts, MA 01887, United States |
| ANDREWS, Gary RESIGNED | Secretary | 31 Jan 2008 | 23 Dec 2019 | | | Manston Road, Margate, Kent, CT9 4LT |
| HAWKES, George Harold RESIGNED | Secretary | | 31 Dec 2000 | | | Charles River U K Limited, Manston Road, Margate, Kent, CT9 4LT |
| MEDHURST, Clive William RESIGNED | Secretary | 01 Jan 2001 | 31 Jan 2008 | | | 1 Park View, Mill Lane Bridge, Canterbury, Kent, CT4 5LH |
| PRICE, Sarah Margaret RESIGNED | Secretary | 23 Dec 2019 | 30 Jun 2024 | | | Manston Road, Margate, Kent, CT9 4LT |
| ACKERMAN, Thomas Francis RESIGNED | Director | 12 Feb 2001 | 31 Aug 2015 | Usa | June 1954 | 251 Ballardvale Street, Wilmington, 01887, Massachusetts, Usa |
| FOSTER, Henry Louis RESIGNED | Director | | 29 Feb 2000 | | June 1924 | 11 Drumlin Road, Newton, Massachusetts, FOREIGN, Usa |
| FOSTER, James C RESIGNED | Director | 12 Mar 2007 | 31 Aug 2015 | Usa | November 1950 | 251 Ballardvale Street, Wilmington, Massachusetts 01887, Usa |
| HAWKES, George Harold RESIGNED | Director | | 31 Dec 2000 | | October 1941 | Charles River U K Limited, Manston Road, Margate, Kent, CT9 4LT |
| JOHST, David P RESIGNED | Director | 12 Mar 2007 | 20 May 2020 | United States | December 1961 | 251 Ballardvale Street, Wilmington, Massachusetts 01887, United States |
| PRICE, Sarah Margaret RESIGNED | Director | 20 May 2020 | 30 Jun 2024 | England | August 1958 | Manston Road, Margate, Kent, CT9 4LT |
| SEAR, Christopher Harry, Doctor RESIGNED | Director | 27 Jul 1994 | 04 Aug 1994 | | February 1947 | C/O Charles River Uk Limited, Manston Road, Margate, Kent, CT9 4LT |
| SHAUGHNESSY, Dennis R RESIGNED | Director | 12 Feb 2001 | 25 Apr 2005 | | December 1957 | 251 Ballardvale Street, Wilmington, Massachusetts 01887, Usa |
| SMITH, Alan Roy RESIGNED | Director | | 12 Mar 2007 | | May 1940 | C/O Charles River U K Limited, Manston Road, Margate, Kent, CT9 4LT |
| SMITH, David Ross RESIGNED | Director | 01 Sep 2015 | 01 Feb 2023 | United States | September 1965 | 251, Ballardvale Street, Wilmington, Massachusetts 01887, United States |