| KIM, Jae ACTIVE | Secretary | 08 Apr 2024 | | | | 1001, Ridder Park Drive, San Jose, California 95131, United States |
| BIRD & BIRD COMPANY SECRETARIES LIMITED ACTIVE | Secretary | 10 Sep 2024 | | | | 12, New Fetter Lane, London, EC4A 1JP, United Kingdom |
| CHANG, Eric ACTIVE | Director | 15 Apr 2026 | | United States | February 1973 | 12, New Fetter Lane, London, EC4A 1JP, United Kingdom |
| CROSTON, Ian Richard ACTIVE | Director | 21 Jul 2026 | | United Kingdom | January 1965 | 12, New Fetter Lane, London, EC4A 1JP, United Kingdom |
| BORDER, Keith Geoffrey RESIGNED | Secretary | 17 Nov 2017 | 02 Nov 2020 | | | Oclaro Technology Limited, Caswell, Towcester, Northamptonshire, NN12 8EQ, United Kingdom |
| BORDER, Keith Geoffrey RESIGNED | Secretary | 18 Feb 2009 | 06 Aug 2012 | | | 6 Hawthorn Close, Aller Park, Newton Abbot, Devon, TQ12 4TG |
| COCKRELL, Stephen John RESIGNED | Secretary | 25 Jan 2000 | 31 Dec 2000 | | | Home Farm House, Weston, Towcester, Northamptonshire, NN12 8PU |
| DAVIS, Philip Stephen James RESIGNED | Secretary | 30 Jan 2001 | 01 Apr 2005 | | | Westam House, Marlston Road, Hermitage, Berkshire, RG18 9SU |
| HAMEL, Judy Godin, Mrs. RESIGNED | Secretary | 03 Nov 2020 | 08 Apr 2024 | | | Caswell, Towcester, Northamptonshire, NN12 8EQ |
| HAYNES, James Douglas RESIGNED | Secretary | 11 Nov 2013 | 15 Nov 2017 | | | Caswell, Towcester, Northamptonshire, NN12 8EQ |
| LETHBY, Neil RESIGNED | Secretary | 28 Jun 1996 | 13 Mar 1998 | | | 4 Tyning Road, Saltford, Bristol, BS18 3HL |
| PILLMAN, Joseph Charles RESIGNED | Secretary | 31 Dec 2000 | 30 Jan 2001 | | | 9 Saint Christophers Place, Oxford, Oxfordshire, OX4 2HS |
| PILLMAN, Joseph Charles RESIGNED | Secretary | 16 Mar 1998 | 25 Jan 2000 | | | 1 Veor Farm, West Street, Childrey, Wantage, Oxfordshire, OX12 9UJ |
| RICKMAN, Nichola Jane RESIGNED | Secretary | | 28 Jun 1996 | | | St Katharines Lodge, Savernake Forest, Marlborough, Wiltshire, SN8 3BG |
| RUNDLE, Catherine Hunt RESIGNED | Secretary | 19 Dec 2007 | 18 Feb 2009 | | | 1289 Woddland Ave, Menlo Park, Ca 94025, Usa |
| TURIN, Jerry RESIGNED | Secretary | 06 Aug 2013 | 11 Nov 2013 | | | Caswell, Towcester, Northamptonshire, NN12 8EQ |
| ZORIN, Jacobin Michelle RESIGNED | Secretary | 01 Apr 2005 | 31 Oct 2007 | | | 9625 Prairie Owl Court, Gilroy, California 95020, Usa |
| ABELY, Stephen Michael RESIGNED | Director | 10 Sep 2004 | 31 Jul 2008 | | March 1957 | 9821 Rockview Court, San Jose, California, Ca 45120, FOREIGN, Usa |
| ANANIA, Giorgio, Dr. RESIGNED | Director | 14 Feb 2001 | 13 Feb 2007 | | October 1958 | 3, Rue De Vernouillet, Medan, 78670, France |
| BORDER, Keith Geoffrey RESIGNED | Director | 03 Nov 2017 | 03 Nov 2020 | United Kingdom | March 1964 | Oclaro Technology Ltd, Caswell, Towcester, Northamptonshire, NN12 8EQ, United Kingdom |
| BORDER, Keith Geoffrey RESIGNED | Director | 20 Dec 2007 | 06 Aug 2013 | United Kingdom | March 1964 | 6 Hawthorn Close, Aller Park, Newton Abbot, Devon, TQ12 4TG |
| BORDUI, Peter Frank RESIGNED | Director | 08 Mar 2004 | 10 Sep 2004 | Switzerland | May 1960 | 2 Route Du Stand, Givrins, 1271, Switzerland |
| BOYLE, James Andrew RESIGNED | Director | 05 Dec 2024 | 19 Jun 2026 | United Kingdom | March 1973 | Lumentum, Caswell Office, Caswell, Towcester, Northampton, NN12 8EQ, United Kingdom |
| COOK, Joseph C RESIGNED | Director | 14 Feb 2002 | 10 Sep 2004 | | November 1951 | 1434 Oshannon Lane, Garland, Texas 75044, Usa |
| DAVIS, Philip Stephen James RESIGNED | Director | 10 Sep 2004 | 01 Apr 2005 | | February 1966 | Westam House, Marlston Road, Hermitage, Berkshire, RG18 9SU |
| FU, Winston S, Dr RESIGNED | Director | 08 Mar 2004 | 10 Sep 2004 | | April 1966 | 24201 Summerhill Avenue, Los Altos, 94024 California, Usa |
| HAYNES, James Douglas RESIGNED | Director | 11 Nov 2013 | 03 Nov 2017 | United Kingdom | February 1962 | Caswell, Towcester, Northamptonshire, NN12 8EQ |
| HOLLAND, Lori RESIGNED | Director | 28 Apr 1999 | 10 Sep 2004 | | March 1958 | 17390 Pleasant View Avenue, Monte Sereno, California 95030, Usa |
| KELLEY, Thomas RESIGNED | Director | 01 Apr 2005 | 19 Dec 2007 | | May 1972 | 1804 River Road, Manotick, Ontario, K4m 1ba, Canada |
| KILBY, Jack St,Clair RESIGNED | Director | 25 Jan 2000 | 08 Mar 2004 | | November 1923 | 7723 Midbury Drive, Dallas, Texas, 75230, America |
| LETHBY, Neil RESIGNED | Director | 10 Jul 1995 | 13 Mar 1998 | | December 1952 | 4 Tyning Road, Saltford, Bristol, BS18 3HL |
| MCDONNELL, Myra, Ms. RESIGNED | Director | 16 Mar 2021 | 27 Jan 2023 | United Kingdom | April 1966 | Caswell, Towcester, Northamptonshire, NN12 8EQ |
| MILLER, Graham Courtney Charles RESIGNED | Director | 16 Oct 1995 | 31 Dec 2001 | | January 1931 | 165 Oceanview Avenue, P O Box 1022, Cotu It, Massachusetts, Usa 02635 |
| PAVONE, Salvatore RESIGNED | Director | 27 Jan 2023 | 06 Sep 2024 | England | January 1974 | Caswell, Towcester, Northamptonshire, NN12 8EQ |
| POMROY, Denis RESIGNED | Director | 17 Sep 1996 | 08 Aug 2000 | | November 1950 | 1 Rue Benouville, Paris, 75016, France |
| PORTER, Wilbur Arthur, Dr RESIGNED | Director | 24 Feb 1998 | 10 Sep 2004 | | March 1941 | Six Cedarwing Lane, The Woodlands, Texas, 77381, Usa |
| RICKMAN, Andrew George, Dr RESIGNED | Director | | 10 Sep 2004 | England | March 1960 | Rockley Manor, Rockley, Marlborough, Wiltshire, SN8 1RT |
| RICKMAN, Nichola Jane RESIGNED | Director | | 10 Aug 1995 | | January 1962 | St Katharines Lodge, Savernake Forest, Marlborough, Wiltshire, SN8 3BG |
| RICKMAN, Robert James RESIGNED | Director | 20 Sep 1994 | 10 Sep 2004 | | September 1957 | 3 Beaumont Buildings, Oxford, OX1 2LL |
| RUNDLE, Catherine Hunt RESIGNED | Director | 19 Dec 2007 | 06 Aug 2013 | Usa | April 1957 | 1289 Woddland Ave, Menlo Park, Ca 94025, Usa |
| SANDS, Eric Ian Richard RESIGNED | Director | 19 Apr 1996 | 14 Jun 1996 | | September 1936 | 19 Laines Head, Chippenham, Wiltshire, SN15 1PH |
| SEPE, Matthew Joseph, Mr. RESIGNED | Director | 03 Nov 2020 | 15 Apr 2026 | United States | November 1975 | 12, New Fetter Lane, London, EC4A 1JP, United Kingdom |
| SIMPSON, David, Dr RESIGNED | Director | 01 Mar 1995 | 02 Jun 2004 | Scotland | November 1926 | Elvingston House, Gladsmuir, Tranent, East Lothian, EH33 1EH |
| TURIN, Jerry RESIGNED | Director | 01 Aug 2008 | 11 Nov 2013 | Usa | June 1962 | 890, Whispering Pines Dr, Scotts Valley, California, 95066, Usa |