| CHALMERS, Sabine ACTIVE | Secretary | 01 Sep 2021 | | | | 1, Braham Street, London, E1 8EE, United Kingdom |
| CAIRNIE, Linda Ruth ACTIVE | Director | 06 Apr 2023 | | England | December 1953 | 1, Braham Street, London, E1 8EE, United Kingdom |
| CHAN JONES, Maggie ACTIVE | Director | 01 Mar 2023 | | United States | November 1974 | 1, Braham Street, London, E1 8EE, United Kingdom |
| CHISHOLM, Alex James, Sir ACTIVE | Director | 16 Sep 2024 | | United Kingdom | January 1968 | 1, Braham Street, London, E1 8EE, United Kingdom |
| COBIAN, Patricia ACTIVE | Director | 20 Jul 2026 | | United Kingdom | February 1975 | C/O Company Secretary, Bt Group Plc, 16th Floor, One Braham, 1 Braham Street, London, E1 8EE, United Kingdom |
| CROZIER, Adam Alexander ACTIVE | Director | 01 Nov 2021 | | United Kingdom | January 1964 | 1, Braham Street, London, E1 8EE, United Kingdom |
| GUGGENHEIMER, Steven Craig ACTIVE | Director | 01 Oct 2022 | | United States | May 1965 | 1, Braham Street, London, EC1 8EE, United Kingdom |
| KEY, Matthew David ACTIVE | Director | 25 Oct 2018 | | England | March 1963 | 1, Braham Street, London, E1 8EE, United Kingdom |
| KIRKBY, Allison ACTIVE | Director | 15 Mar 2019 | | United Kingdom | July 1967 | 1, Braham Street, London, E1 8EE, United Kingdom |
| KUBLER, Raphael, Dr ACTIVE | Director | 30 Jan 2024 | | Germany | January 1963 | C/O Company Secretary, 1 Braham Street, London, E1 8EE, United Kingdom |
| MITTAL, Sunil Bharti ACTIVE | Director | 15 Sep 2025 | | India | October 1957 | 16th Floor, 1 Braham Street, London, E1 8EE, United Kingdom |
| MORZARIA, Tushar ACTIVE | Director | 07 May 2024 | | United Kingdom | February 1969 | C/O Company Secretary, Bt Group Plc, 16th Floor, One Braham, 1 Braham Street, London, E1 8EE, United Kingdom |
| QURESHI, Rima ACTIVE | Director | 02 Mar 2025 | | Barbados | January 1965 | 1, Braham Street, London, E1 8EE, United Kingdom |
| VITTAL, Gopal ACTIVE | Director | 15 Sep 2025 | | India | June 1966 | 1, Braham Street, London, E1 8EE, United Kingdom |
| WELLER, Sara Vivienne ACTIVE | Director | 16 Jul 2020 | | United Kingdom | August 1961 | 1, Braham Street, London, E1 8EE, United Kingdom |
| CANHAM, Rachel RESIGNED | Secretary | 01 Nov 2018 | 01 Sep 2021 | | | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| FITZ, Joseph Daniel RESIGNED | Secretary | 01 Nov 2012 | 31 Oct 2018 | | | Pp A9d, Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| GREEN, Colin Raymond RESIGNED | Secretary | 10 Sep 2001 | 26 Mar 2002 | | | 131 Shakespeare Tower, Barbican, London, EC2Y 8DR |
| PARKER, Andrew John RESIGNED | Secretary | 01 Apr 2008 | 31 Oct 2012 | | | Bt Centre, 81 Newgate Street, London, EC1A 7AJ |
| SCOTT, Alan George, Mr. RESIGNED | Secretary | 30 Mar 2001 | 10 Sep 2001 | | | The Old Manse House, 17 Imperial Road, Windsor, Berkshire, SL4 3RY |
| STONE, Laurence William RESIGNED | Secretary | 27 Mar 2002 | 01 Apr 2008 | | | 70 Schubert Road, Putney, London, SW15 2QS |
| AL-SALEH, Adel Bedry RESIGNED | Director | 15 May 2020 | 31 Dec 2023 | United Kingdom | September 1963 | 1, Braham Street, London, E1 8EE, United Kingdom |
| ALAHUHTA, Matti Juhani RESIGNED | Director | 01 Feb 2006 | 31 May 2009 | | June 1952 | Akatemiantie 2 B, Fi-02700 Kauniainen, Finland |
| ALEXANDER, Helen RESIGNED | Director | 19 Nov 2001 | 14 Jan 2002 | | February 1957 | 25 St James's Street, London, SW1A 1HG |
| BALL, Anthony Frank Elliott RESIGNED | Director | 16 Jul 2009 | 11 Jul 2018 | | December 1955 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ |
| BARRAULT, Francois RESIGNED | Director | 24 Apr 2007 | 30 Oct 2008 | | September 1960 | Avenue Hamoir 39, 1180 Uccle, Belgium |
| BLAND, Francis Christopher Buchan RESIGNED | Director | 10 Sep 2001 | 30 Sep 2007 | | May 1938 | 10 Catherine Place, London, SW1E 6HF |
| BONFIELD, Peter Leahy, Sir RESIGNED | Director | 10 Sep 2001 | 31 Jan 2002 | England | June 1944 | Truchas House, Towpath, Shepperton, Middlesex, TW17 9LL |
| BORTHWICK, David RESIGNED | Director | 30 Mar 2001 | 10 Sep 2001 | | May 1940 | Deep Meadow, Holywell Road, Edington, Bridgwater, Somerset, TA7 9JH |
| BRENDISH, Clayton Mark RESIGNED | Director | 01 Sep 2002 | 31 Aug 2011 | United Kingdom | March 1947 | Horseshoe House, Coworth Park, London Road Sunninghill, Ascot, Berkshire, SL5 7SE |
| CHANMUGAM, Anthony Everard Ashiantha RESIGNED | Director | 01 Dec 2008 | 13 Jul 2016 | England | April 1954 | Bt Centre 81, Newgate Street, London, EC1A 7AJ |
| CHESHIRE, Ian Michael, Sir RESIGNED | Director | 16 Mar 2020 | 13 Jul 2023 | United Kingdom | August 1959 | 1, Braham Street, London, E1 8EE, United Kingdom |
| CONN, Iain Cameron RESIGNED | Director | 01 Jun 2014 | 13 Jul 2023 | United Kingdom | October 1962 | 1, Braham Street, London, E1 8EE, United Kingdom |
| DANIELS, John Eric RESIGNED | Director | 01 Apr 2008 | 13 Jun 2012 | United Kingdom | August 1951 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ |
| DANON, Pierre RESIGNED | Director | 19 Nov 2001 | 28 Feb 2005 | | May 1956 | 42 Eaton Square, London, SW1W 9BD |
| DE MOLLER, June Frances RESIGNED | Director | 19 Nov 2001 | 14 Jan 2002 | England | June 1947 | 35 Cadogan Square, London, SW1X 0HU |
| DU PLESSIS, Jan Petrus RESIGNED | Director | 01 Jun 2017 | 01 Dec 2021 | United Kingdom | January 1954 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| EAST, David Warren Arthur RESIGNED | Director | 01 Feb 2014 | 31 May 2015 | United Kingdom | October 1961 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| GREEN, Andrew James RESIGNED | Director | 19 Nov 2001 | 12 Nov 2007 | England | September 1955 | Theobalds Farm House, Burnt Farm Ride Crews Hill, Enfield, Middlesex, EN2 9DY |
| GREENER, Anthony Armitage, Sir RESIGNED | Director | 19 Nov 2001 | 30 Sep 2006 | United Kingdom | May 1940 | 26 Hamilton House, Vicarage Gate, London, W8 4HL |
| HAMPTON, Philip Roy RESIGNED | Director | 10 Sep 2001 | 30 Apr 2002 | | October 1953 | Blakeney, Pennymead Rise, East Horsley, Leatherhead, Surrey, KT24 5AL |
| HEWITT, Patricia Hope RESIGNED | Director | 24 Mar 2008 | 23 Mar 2014 | | December 1948 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ |
| HODKINSON, Philip Andrew RESIGNED | Director | 01 Feb 2006 | 31 Jan 2016 | United Kingdom | April 1958 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ |
| HOTTGES, Timotheus RESIGNED | Director | 29 Jan 2016 | 15 May 2020 | Germany | September 1962 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| HUDSON, Isabel Frances RESIGNED | Director | 01 Nov 2014 | 11 Jul 2024 | United Kingdom | December 1959 | 1, Braham Street, London, E1 8EE, United Kingdom |
| HUGHES, Louis Ralph RESIGNED | Director | 19 Nov 2001 | 31 Mar 2006 | | February 1949 | 86 Indian Hill Road, Winnetka, Illinois, 60093, United States Of America |
| INGLIS, Michael James RESIGNED | Director | 01 Sep 2015 | 15 Jul 2021 | United Kingdom | January 1960 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| ISDELL, Edward Neville RESIGNED | Director | 19 Nov 2001 | 14 Jan 2002 | | June 1943 | Panof 19 And Iras 16, 14565 Ekali, Athens, Greece |
| JANSEN, Philip Eric Rene RESIGNED | Director | 01 Jan 2019 | 31 Jan 2024 | United Kingdom | January 1967 | 1, Braham Street, London, E1 8EE, United Kingdom |
| JAY, Margaret Ann, Baroness RESIGNED | Director | 14 Jan 2002 | 13 Jan 2008 | United Kingdom | November 1939 | Lower Ground, 44 Blomfield Road, London, W9 2PF |
| LALANI, Hanif Mohamed RESIGNED | Director | 07 Feb 2005 | 07 Jan 2010 | England | April 1962 | 8 Pembroke Road, Moor Park, Northwood, Middlesex, HA6 2HR |
| LATHEN, Deborah Ann RESIGNED | Director | 01 Feb 2007 | 31 Jan 2010 | | March 1953 | 1607 Allison St Nw, Washington Dc 20011, United States |
| LIVINGSTON, Ian Paul, Lord RESIGNED | Director | 08 Apr 2002 | 10 Sep 2013 | United Kingdom | July 1964 | Bt Centre, Newgate Street, London, EC1A 7AJ, United Kingdom |
| LOWTH, Simon Jonathan RESIGNED | Director | 12 Jul 2016 | 01 Sep 2026 | United Kingdom | September 1961 | 1, Braham Street, London, E1 8EE, United Kingdom |
| NAIR, Leena Kumar RESIGNED | Director | 10 Jul 2019 | 14 Jul 2022 | United Kingdom | June 1969 | 1, Braham Street, London, E1 8EE, United Kingdom |
| NELSON, John Frederick RESIGNED | Director | 14 Jan 2002 | 13 Jan 2008 | United Kingdom | July 1947 | 66 Lyford Road, London, SW18 3JW |
| PATTERSON, Gavin Echlin RESIGNED | Director | 01 Jun 2008 | 31 Jan 2019 | | September 1967 | Bt Centre 81, Newgate Street, London, EC1A 7AJ |
| RAKE, Michael Derek Vaughan, Sir RESIGNED | Director | 26 Sep 2007 | 31 Oct 2017 | England | January 1948 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ |
| REYNOLDS, Paul Joseph RESIGNED | Director | 19 Nov 2001 | 14 Sep 2007 | United Kingdom | March 1957 | Brockwell Farm, Butlers Cross, Aylesbury, Bucks, HP17 0UX |
| RICHARDSON, Karen Ann RESIGNED | Director | 01 Nov 2011 | 11 Jul 2018 | United States | December 1962 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| ROSE, Nicholas Charles RESIGNED | Director | 01 Jan 2011 | 16 Jul 2020 | United Kingdom | October 1957 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |
| SCOTT, Alan George, Mr. RESIGNED | Director | 30 Mar 2001 | 10 Sep 2001 | England | March 1950 | The Old Manse House, 17 Imperial Road, Windsor, Berkshire, SL4 3RY |
| SILVERWOOD, Kathryn RESIGNED | Director | 07 Sep 2001 | 10 Sep 2001 | | January 1967 | 43 Lockesfield Place, London, E14 3AJ |
| SYMON, Carl George RESIGNED | Director | 14 Jan 2002 | 13 Jan 2012 | | May 1946 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ |
| VAN DEN BERGH, Maarten Albert RESIGNED | Director | 19 Nov 2001 | 15 Jul 2009 | | April 1942 | The Shell Centre, London, SE1 7NA |
| VERWAAYEN, Bernardus Johannes Maria RESIGNED | Director | 14 Jan 2002 | 30 Jun 2008 | | February 1952 | Flat 7, 1-3 Princes Gate, London, SW7 1QJ |
| WESTON, Philip John RESIGNED | Director | 19 Nov 2001 | 14 Jan 2002 | | April 1938 | 13 Denbigh Gardens, Richmond, Surrey, TW10 6EN |
| WHITBREAD, Jasmine Mary RESIGNED | Director | 19 Jan 2011 | 06 Dec 2019 | United Kingdom | September 1963 | Bt Centre, 81 Newgate Street, London, EC1A 7AJ, United Kingdom |