| LIND, Joj Eva ACTIVE | Secretary | 25 Oct 2022 | | | | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| BOMER, Daljit Kaur ACTIVE | Director | 13 May 2015 | | England | August 1956 | Flat 4w, Rear Of Block 4, Portman Mansions, Porter Street, London, W1U 6NS, England |
| COLSON, Sarah Laurence ACTIVE | Director | 26 Feb 2026 | | United Kingdom | November 1982 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| HART, Michael Gordon Colquhoun ACTIVE | Director | 08 Dec 2021 | | England | October 1950 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| KOJIMA, Satoshi ACTIVE | Director | 21 Sep 2022 | | England | November 1971 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| ALFORD, Kenneth Robert RESIGNED | Secretary | | 27 Oct 1994 | | | 30a Station Parade, Barking, Essex, IG11 8DR |
| CLIFFORD, Keith Douglas RESIGNED | Secretary | 07 Apr 1994 | 16 Apr 1996 | | | 5a Portman Mansions, Chiltern Street, London, W1U 5AH |
| FRIER, Roger Andrew RESIGNED | Secretary | 16 Apr 1996 | 01 Apr 2007 | | | 18 Bencombe Road, Marlow Bottom, Buckinghamshire, SL7 3NZ |
| LIND, Joj Eva RESIGNED | Secretary | 21 Mar 2000 | 18 Sep 2020 | | | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| ALFORD, Kenneth Robert RESIGNED | Director | | 25 Mar 1994 | | May 1947 | 30a Station Parade, Barking, Essex, IG11 8DR |
| BRADBURY, David RESIGNED | Director | 07 Aug 1996 | 21 Mar 2000 | England | March 1947 | 10 The Green, Welwyn, Hertfordshire, AL6 9EA |
| CLIFFORD, Keith Douglas RESIGNED | Director | | 31 May 2026 | United Kingdom | March 1946 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| EVANS, Bryn Stuart RESIGNED | Director | | 05 Mar 1994 | England | October 1940 | 6 Gladeside, St Albans, Hertfordshire, AL4 9JA |
| FAIRCLOUGH, Lillias Diana RESIGNED | Director | 28 Nov 1994 | 14 Sep 2001 | | July 1933 | 5m Portman Mansions, Chiltern Street, London, W1U 5AH |
| GEDDES, Kenneth Bernard RESIGNED | Director | 28 Nov 1994 | 21 Feb 1996 | | June 1933 | Bridge Farm Fenton, Sturton Le Steeple, Retford, Notts, DN22 9HF |
| GOLDRING, Stephen Howard RESIGNED | Director | 28 Nov 1994 | 04 Oct 1997 | | October 1967 | 12 Battishill Street, London, N1 1TE |
| HEPPARD, Jacqueline Elizabeth RESIGNED | Director | 03 Dec 2004 | 01 May 2022 | England | January 1960 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| HORTON, Guy Stuart RESIGNED | Director | 07 Apr 1994 | 04 Aug 1996 | England | March 1937 | 4d Portman Mansions, London, WIM 1LF |
| JOHNSON, Stephen Paul RESIGNED | Director | 21 Sep 2022 | 11 Sep 2026 | England | December 1967 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| LAW, Steve Shek Kong RESIGNED | Director | 27 Jun 2002 | 01 Apr 2013 | | August 1958 | 5m Portman Mansions, Chiltern Street, London, W1U 5AH |
| LIND, Joj Eva RESIGNED | Director | 07 Aug 1996 | 13 Aug 2014 | | May 1950 | 5g Portman Mansions, Chiltern Street, London, W1U 5AH |
| MARSDEN-LYNCH, John Francis RESIGNED | Director | 04 Aug 1996 | 21 Mar 2000 | | June 1954 | 14a Portman Mansions, Chiltern Street, London, W1M 1HU |
| MARSDEN-LYNCH, John Francis RESIGNED | Director | 28 Nov 1994 | 03 Jul 1995 | | June 1954 | 14a Portman Mansions, Chiltern Street, London, W1M 1HU |
| MATHESON, James Alexander RESIGNED | Director | 25 Nov 2005 | 26 Feb 2008 | | January 1957 | 12h Portman Mansions, Chiltern Street, London, W1U 6NU |
| MCDONALD, Andrew John RESIGNED | Director | 27 Jun 2002 | 04 Dec 2024 | England | June 1947 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| MCDOWELL, Harold Eugene RESIGNED | Director | 20 Feb 1997 | 14 Oct 2004 | | August 1933 | 7 Loring Road, Hopkins Mn 55305, Usa |
| MOORE, Philip Stephen RESIGNED | Director | 04 Aug 1996 | 04 Dec 2024 | England | April 1961 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| MOORE, Philip Stephen RESIGNED | Director | 07 Apr 1994 | 21 Feb 1996 | England | April 1961 | Flat D 8 Portman Mansions, Porter Street, London, W1U 6DE |
| PONCET, Simon RESIGNED | Director | 14 Jan 2010 | 05 Jun 2014 | England | January 1966 | 2h Portman Mansions, Chiltern Street, London, W1U 6NR |
| ROMERO JUNQUERA, Beatriz RESIGNED | Director | 27 Jun 2002 | 15 Dec 2006 | | June 1965 | 8a Portman Mansions, Porter Street, London, W1U 6DE |
| ROULLAND, Terrance Alan RESIGNED | Director | 07 May 2014 | 23 Feb 2023 | England | March 1946 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| SHAMASH, Jamil RESIGNED | Director | 17 Jan 2007 | 16 Jan 2025 | England | January 1946 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| SHEARD, Kerry Lynette RESIGNED | Director | 03 Dec 2004 | 14 Jan 2025 | United Kingdom | May 1947 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| VERDIS, Constantinos RESIGNED | Director | 03 Mar 2005 | 27 Jul 2017 | | May 1945 | 3 G Portman Mansions Chiltern Street, London, W1U 5AN |
| WYATT, Alan Stephen RESIGNED | Director | 06 Nov 2014 | 21 Sep 2022 | United Kingdom | July 1949 | Flat 4w Block 4 Rear, Portman Mansions, Porter Street, London, W1U 6NS |
| WALLABROOK PROPERTY COMPANY LIMITED RESIGNED | Director | | 25 Mar 1994 | | | Friars Court 85 Crutched Friars, London, EC3N 2DD |