| ROBINSON, Alison Jayne ACTIVE | Secretary | 22 Dec 2011 | | | | Doddington Road, Lincoln, LN6 3RA |
| MASUDA, Junzo ACTIVE | Director | 03 Apr 2025 | | Japan | April 1971 | 2, Sadler Road, Lincoln, LN6 3RA, England |
| STANSFIELD, Mark ACTIVE | Director | 27 Jul 2000 | | England | November 1965 | 9, Gilmores Lane, Fernwood, Newark, Nottinghamshire, NG24 3GX, England |
| WEYDT, Ralf Ingo ACTIVE | Director | 12 Aug 2026 | | Germany | October 1971 | Doddington Road, Lincoln, LN6 3RA |
| BAXTER, Stewart John RESIGNED | Secretary | | 17 Jul 1995 | | | April Cottage Broxholme Lane, Saxilby, Lincoln, Lincolnshire, LN1 2NQ |
| DIX, David RESIGNED | Secretary | 08 Apr 2010 | 22 Dec 2011 | | | Doddington Road, Lincoln, LN6 3RA |
| DIX, David RESIGNED | Secretary | 25 Oct 2002 | 01 Apr 2003 | | | 10 Almsford Avenue, Harrogate, N Yorks, HG2 8HD |
| IKEDA, Yoshiaki RESIGNED | Secretary | 10 Aug 2005 | 08 Apr 2010 | | | Gerhart-Hauptmann-Ring 252, Frankfurt Am Main, D60439, FOREIGN, Germany |
| KUROKAWA, Shinichiro RESIGNED | Secretary | 01 Apr 2003 | 10 Aug 2005 | | | Steinbacher 65, 60688 Frankfurt-Am-Main, Germany |
| STANSFIELD, Mark RESIGNED | Secretary | 25 Jul 1995 | 27 Jul 2000 | | | 9 Gilmores Lane, Balderton, Newark, Nottinghamshire, NG24 3GX |
| WARNER, Robert Edward RESIGNED | Secretary | 27 Jul 2000 | 25 Oct 2002 | | | 20 Watery Lane, Dunholme, Lincolnshire, LN2 3QW |
| BAXTER, Stewart John RESIGNED | Director | | 17 Jul 1995 | | May 1944 | April Cottage Broxholme Lane, Saxilby, Lincoln, Lincolnshire, LN1 2NQ |
| CHAPMAN, Ronald Philip RESIGNED | Director | | 31 Mar 1998 | | December 1932 | Corner Ways, 1 Gayton Close, Skegness, Lincolnshire, PE25 3PJ |
| DOSHO, Koichi RESIGNED | Director | 01 Apr 2003 | 08 Apr 2010 | Germany | November 1949 | 2-13-33 Wiga Shiga Oka, Meguro-Ku, Toyko, 152-0021, Japan |
| DOSHO, Koichi RESIGNED | Director | | 28 Feb 2001 | | November 1949 | 3-17-12-401 Tsurumaki, Setagaya-Ku, Toyko, 154-0016, Japan |
| EIDMANN, Michael Werner RESIGNED | Director | 21 Apr 2021 | 12 Aug 2026 | Germany | December 1964 | Doddington Road, Lincoln, LN6 3RA |
| HEROD, Anthony Philip RESIGNED | Director | | 05 Jul 1992 | | October 1951 | Chapel House, Front Street, Tealby, Lincolnshire, LN8 3XU |
| KAINUMA, Yoshihisa RESIGNED | Director | 10 Aug 2005 | 29 Jun 2006 | | February 1956 | 4 17 13 Yakumo, Meguro Ku, Tokyo 152 0023, FOREIGN, Japan |
| KOJIMA, Koichiro RESIGNED | Director | | 08 Apr 2010 | Japan | November 1956 | Room No 3301, 4106-432 Miyota, Miyota-Machin, Kitasaku-Gun, Nagano-Ken 389-0206, Japan |
| KONOMI, Daishiro RESIGNED | Director | 15 Dec 1995 | 01 Jul 2017 | Germany | September 1951 | The Tokyo Towers Mid 2213, Kachidoki 6-3-2, Chou-Ku, Tokyo 104-0054, Japan |
| MARUTA, Tomihiro RESIGNED | Director | | 27 Jul 2000 | | October 1939 | Shonan Garden 408, 1-1-1 Katase, Fujisawa, Kanagawa 251-0032, Japan |
| MIZUKAMI, Ryusuke RESIGNED | Director | | 10 Aug 2005 | | December 1940 | 3-5-9-1105 Yahata-Cho, Musashino-Shi, Tokyo, 180-0011, FOREIGN, Japan |
| NONE, Shigeru RESIGNED | Director | 01 Jul 2017 | 03 Apr 2025 | Japan | August 1959 | Doddington Road, Lincoln, LN6 3RA |
| OGINO, Goro RESIGNED | Director | | 15 Dec 1995 | | April 1930 | 4106-284 Oaza Miyota, Miyota-Machi Kitasaku-Gun Nagano-Ken, FOREIGN, Japan |
| OTA, Yugen RESIGNED | Director | 04 Mar 2014 | 21 Apr 2021 | Germany | November 1959 | Doddington Road, Lincoln, LN6 3RA |
| PARKIN, Cyril RESIGNED | Director | | 31 Mar 1992 | | June 1935 | 322 Hykeham Road, Lincoln, Lincolnshire, LN6 8BW |
| TAKENAKA, Tosei RESIGNED | Director | 29 Jun 2006 | 29 Jun 2007 | | February 1941 | Saginuma 2-8-4,Miyamae Ku, Kawasaki, Kanagawa, Japan |
| YAMANAKA, Masayoshi RESIGNED | Director | 29 Jun 2007 | 31 May 2013 | Japan | April 1948 | 303, 1-16-1, Hisamoto, Takatsu Ku, Kawasaki, Kanagawa 213-0011, Japan |