| May 1977 | A&D Co., Ltd. (paid-in capital 42.04 million yen) was founded to manufacture and distribute electronic measuring instruments. A head office was established in Nerima-ku, Tokyo and a factory in Kitamoto City, Saitama. |
|---|---|
| May 1979 | Relocation of head office to Shibuya-ku, Tokyo |
| May 1981 | Relocation of factory to Konosu City, Saitama (current Konosu factory) |
| June 1982 | Acquired Kensei Industry Co., Ltd. stocks which then became an A&D subsidiary (currently A&D’s consolidated subsidiary) and entered the electronic balance business. |
| August 1982 | Founded A&D Engineering, Inc. (currently A&D’s consolidated subsidiary), which became the sales office for North, Central and South America. |
| June 1985 | Founded Litra Co., Ltd. (currently A&D’s consolidated subsidiary), a factory specializing in load cell and electronic balance manufacturing. |
| January 1987 | Entered into contract with Takeda Medical Inc. for sole representation and began distribution of digital blood pressure monitors. |
| December 1987 | Acquired Mercury Weighing And Control Systems Pty. Ltd. stocks (current A&D Australasia Pty. Ltd., A&D’s consolidated subsidiary) and established it as the A&D subsidiary sales office in Oceania. |
| May 1989 | Merged with Takeda Medical Inc. |
| August 1989 | Established the Technical Center in Kitamoto City, Saitama and transferred all research and development functions from the Konosu factory. |
| April 1990 | Founded A&D System Co., Ltd. to enhance the development of medical instruments. |
| September 1990 | Relocation of head office to Toshima-ku, Tokyo |
| December 1990 | Founded A&D Korea Limited (currently A&D’s consolidated subsidiary) |
| May 1991 | Founded A&D Instruments Ltd. (currently A&D’s consolidated subsidiary), which became the sales office in Europe |
| May 1993 | Entered into partnership with Orientec Co., Ltd. (currently A&D’s consolidated subsidiary) and acquired sales representation for testing machines and load cells |
| June 1994 | Founded A&D Scientech Taiwan Limited (currently A&D’s consolidated subsidiary) in Taiwan |
| October 1995 | Obtained ISO9001 certification |
| January 1996 | A&D Korea Limited (currently A&D’s consolidated subsidiary) acquired Hana Instruments Co., Ltd. stocks (currently A&D Scales Co., Ltd., A&D’s consolidated subsidiary) |
| September 1996 | Acquired Orientec Co., Ltd. stocks (currently A&D’s consolidated subsidiary) |
| October 2002 | Founded A&D Electronics (Shenzhen) Co., Ltd., a factory that specializes in the manufacturing of healthcare products |
| April 2003 | Went public on the JASDAQ market |
| August 2003 | Acquired Litra Co., Ltd. (currently A&D’s consolidated subsidiary) as a wholly owned subsidiary |
| January 2005 | Merged with A&D System Co., Ltd. |
| February 2005 | Listed on the second section of the Tokyo Stock Exchange |
| April 2005 | Founded A&D Technology Inc. (currently A&D’s consolidated subsidiary) |
| June 2005 | Acquired Kensei Industry stocks to make it a wholly owned A&D subsidiary |
| August 2005 | Took over the Powertrain technology department of MTS Systems Corporation through A&D Technology Inc |
| March 2006 | Listed on the first section of the Tokyo Stock Exchange |
| July 2006 | Founded A&D RUS CO., LTD. (currently A&D’s consolidated subsidiary), which will focus on the sales of both A&D medical and A&D weighing products in Russia |
| October 2007 | Founded A&D Technology Trading(Shanghai) Co.,Ltd.(A&D’s consolidated subsidiary) |
| February 2008 | Founded A&D Instruments India Private limited(A&D’s consolidated subsidiary) |
| March 2008 | Acquired Horon Co., Ltd. stocks(currently A&D’s consolidated subsidiary) |
| August 2008 | Founded A&D Europe GmbH in Germany |
| October 2008 | Acquired SUM Electro Mechanics Co., Ltd. stocks to make it a wholly owned A&D subsidiary |
| January 2009 | Acquired Best Instruments Co., Ltd. stocks to make it a wholly owned A&D subsidiary |
| June 2013 | Founded CM Seiki Co., Ltd. in Hidaka City, Saitama and entered the checkweigher and metal detector businesses |
| July 2013 | Founded MBS Co., Ltd. in Kitamoto City, Saitama and began consulting on automotive design and development and offering contract testing/measurement services to the automotive industry |
| February 2015 | Established A&D Vietnam Limited in Vietnam |
| July 2015 | Acquired measurement business (formerly NEC San-ei) from Nippon Avionics Co., Ltd. and began sales of industrial measurement equipment |
| December 2015 | Established A&D Instruments Canada Inc. in Canada |
| June 2018 | Acquired Horon Co., Ltd. stocks to make it a wholly owned A&D subsidiary |
| September 2018 | Established A&D Company, Limited Thailand Representative Office in Thailand |
| January 2020 | Acquired A&D Scientech Taiwan Limited stocks to make it a wholly owned A&D subsidiary |
