| DRAFFAN, Nigel Gordon Helm ACTIVE | LLP Designated Member | 23 Nov 2014 | | United Kingdom | September 1950 | The Estate Office, 1 London Road, Arundel, West Sussex, BN18 9BH, United Kingdom |
| FITZALAN HOWARD, Edward William,Duke Of Norfolk ACTIVE | LLP Designated Member | 04 Jan 2023 | | England | December 1956 | The Estate Office, 1 London Road, Arundel, BN18 9BH, England |
| FITZALAN-HOWARD, Henry Miles, The Earl Of Arundel ACTIVE | LLP Designated Member | 15 Nov 2018 | | England | December 1987 | The Estate Office, 1 London Road, Arundel, West Sussex, BN18 9BH, England |
| LANE, Andrew Herbert ACTIVE | LLP Designated Member | 14 Jun 2015 | | England | January 1957 | The Estate Office, 1 London Road, Arundel, West Sussex, BN18 9BH, England |
| ANNE ELIZABETH, Lady Herries Of Terregles RESIGNED | LLP Designated Member | 25 Sep 2009 | 23 Nov 2014 | England | June 1938 | Angmering Park, Littlehampton, West Sussex, BN16 4EX |
| CLUTTON, Sarah Margaret, Lady RESIGNED | LLP Designated Member | 20 Jul 2009 | 14 Jun 2015 | England | September 1941 | The Dover House, Poling, Arundel, West Sussex, BN18 9PX |
| HERRIES OF TERREGLES, Mary Katharine, Lady RESIGNED | LLP Designated Member | 20 Jul 2009 | 07 Apr 2017 | England | August 1940 | North Stoke Cottage, North Stoke, Amberley, Arundel, West Sussex, BN18 9LS |
| KERR, Clare Therese, Lady RESIGNED | LLP Designated Member | 04 Jan 2023 | 07 Jan 2023 | England | January 1979 | The Estate Office, Upper Broomhurst Farm, Crossbush Lane, Crossbush, Arundel, BN18 9PQ, England |
| KERR, Mary Cecil, Lady RESIGNED | LLP Designated Member | 04 Jan 2023 | 07 Jan 2023 | England | May 1981 | The Estate Office, Upper Broomhurst Farm, Crossbush Lane, Arundel, West Sussex, BN18 9PQ, England |
| KERR, Theresa Jane, The Most Honourable Marchioness Of Lothian RESIGNED | LLP Designated Member | 29 Jul 2019 | 07 Jan 2023 | Scotland | January 1945 | The Estate Office, Upper Broomhurst Farm, Crossbush Lane, Arundel, West Sussex, BN18 9PQ |
| KERR, William Walter Raleigh RESIGNED | LLP Designated Member | 28 Sep 2009 | 07 Jan 2023 | Hong Kong | August 1950 | The Dower House, Melbourne, Derby, DE73 1EN |
| LORD HOWARD OF PENRITH, Philip Esme RESIGNED | LLP Designated Member | 25 Sep 2009 | 04 Jan 2023 | England | May 1945 | 45, Erpingham Road, London, SW15 1BQ |
| MOUNSEY HEYSHAM, Giles Herchard RESIGNED | LLP Designated Member | 25 Sep 2009 | 04 Jan 2023 | United Kingdom | August 1948 | Castletown House, Castletown, Rockcliffe, Carlisle, Cumbria, CA6 4BN |
| PENNELL, David John RESIGNED | LLP Designated Member | 04 Jan 2023 | 07 Jan 2023 | England | August 1974 | The Estate Office, Upper Broomhurst Farm, Crossbush Lane, Arundel, West Sussex, BN18 9PQ, England |