| 1967-03 |
1967: March: Established Systems Design Inc. in Machiya, Arakawa-ku, Tokyo |
| 1967-08 |
August: Relocated headquarters to Akasaka, Minato-ku, Tokyo due to business expansion |
| 1970-02 |
1970, February: In response to business expansion, relocated headquarters to Azabu-Juban, Minato-ku, Tokyo, and installed FACOM230-25 at the headquarters. |
| 1972-08 |
1972, August: Established Chiyoda Electronic Computing Co., Ltd., launching as a specialized data solutions services company. |
| 1973-09 |
1973, September: Opened Osaka branch at Nakanoshima-cho, Nishi-ku, Osaka City, Osaka Prefecture. |
| 1976-01 |
1976, January: Opened Nagoya branch. |
| 1977-03 |
1977, March: Relocated Osaka branch to Honmachi, Nishi-ku, Osaka City, Osaka Prefecture, due to business expansion. |
| 1979-12 |
1979, December: Relocated headquarters to Nishi-Shinjuku, Shinjuku-ku, Tokyo, due to business expansion (shared use of FACOM M-180II with Peace Information Center Co., Ltd.). |
| 1981-07 |
1981, July: Relocated Osaka branch to Awajicho, Higashi-ku, Osaka City, Osaka Prefecture, due to business expansion. |
| 1983-10 |
1983, October: Established Yamanashi Chiyoda Computing Co., Ltd. |
| 1986-04 |
1986, April: Established Digital Links Co., Ltd. |
| 1986-07 |
July: Relocated headquarters to Nishi-hara, Shibuya-ku, Tokyo, due to business expansion, installed IBM4341 (online services commenced). |
| 1987-04 |
1987, April: Installed FACOM M-740/10 at Osaka branch. |
| 1989-04 |
1989, April: Established Fukuhaku Digital Links Co., Ltd., launching as a specialized data solutions services company. |
| 1989-11 |
1989, November: Installed FACOM M-760/4 and IBM4381 at headquarters. |
| 1990-06 |
1990, June: Established Fukuhaku S.D.C. Co., Ltd., launching as a specialized system development company. |
| 1993-07 |
1993, July: Absorbed Digital Links Co., Ltd. |
| 1994-01 |
1994, January: Relocated headquarters to Sasazuka, Shibuya-ku, Tokyo, for consolidation and rationalization of offices. |
| 1996-04 |
1996, April: Relocated Osaka branch to Tenmabashi, Kita-ku, Osaka City, Osaka Prefecture, due to business expansion. |
| 1998-08 |
1998, August: Replaced headquarters machines with Fujitsu GS8300. |
| 1999-02 |
1999, February: Divested investments in Fukuhaku Digital Links Co., Ltd. and Fukuhaku S.D.C. Co., Ltd. |
| 2000-10 |
2000, October: Merged Systems Design Co., Ltd., Chiyoda Electronic Computing Co., Ltd., and Yamanashi Chiyoda Computing Co., Ltd., adopting the name Systems Design Co., Ltd.; simultaneously reorganized Osaka branch into Osaka subsidiary (now Osaka office) and established Yamanashi branch, among other organizational reforms. |
| 2002-11 |
2002: November: Replaced head office machines with Fujitsu GS8600FX/10 |
| 2003-08 |
2003: August: Moved Shibuya branch to Sasazuka and integrated with head office |
| 2003-11 |
2003: November: Added a new building to Yamanashi Ryuo Center due to business expansion |
| 2004-03 |
2004: March: Closed Nagoya branch |
| 2004-06 |
2004: June: Obtained Privacy Mark |
| 2005-03 |
2005: March: Listed shares on the JASDAQ (now Tokyo Stock Exchange Standard Market) |
| 2006-01 |
2006: January: Moved Entry Center to Sasazuka, Shibuya-ku, Tokyo due to business expansion |
| 2006-02 |
2006: February: Moved head office to Izumi, Suginami-ku, Tokyo due to business expansion |
| 2006-04 |
2006: April: Acquired shares of IDES Co., Ltd. (became subsidiary) |
| 2011-11 |
2011: November: Obtained ISO9001 certification (outsourcing division) |
| 2012-05 |
2012: May: Moved Entry Center to Hachioji City, Tokyo (now Hachioji office) due to business expansion |
| 2012-12 |
2012: December: Obtained ISO27001 certification (system division & management headquarters) |
| 2014-06 |
2014: June: Opened Yokohama office sub-branch in Yokohama City, Kanagawa due to business expansion |
| 2014-08 |
2014: August: Opened Nagamatsu office in Itabashi-ku, Tokyo for business efficiency |
| 2015-06 |
2015: June: Opened Yokohama office in Yokohama City, Kanagawa due to business expansion |
| 2015-07 |
2015: July: Acquired shares of Shared System Co., Ltd. (became subsidiary) |
| 2015-12 |
2015: December: Opened Tenmabashi office in Chuo-ku, Osaka for business efficiency |
| 2016-05 |
2016: May: Acquired shares of IAC Co., Ltd. (became subsidiary) |
| 2017-03 |
2017: March: 50th anniversary of founding |
| 2018-07 |
2018: July: Acquired shares of For Co., Ltd. (became subsidiary) |
| 2019-02 |
2019: February: Transfer of all shares of IDES Co., Ltd. |
| 2019-09 |
2019: September: Consolidated the Yokohama Office sub-office into the Yokohama Office for operational efficiency. |
| 2019-11 |
2019: November: Relocated to Four Co., Ltd. in Chofu City, Tokyo, as part of business expansion. |
| 2021-03 |
2021: March: Opened the Osaka Medical Remote Center in Tennōbashi, Kita-ku, Osaka City, as part of business expansion. |
| 2021-09 |
2021: September: Relocated Osaka Branch (now Osaka Office) to Chaya-cho, Kita-ku, Osaka City for operational efficiency. |
| 2021-11 |
2021: November: Obtained ISO 27001 certification (extended to all offices). |
| 2022-04 |
2022: April: Transitioned to the Tokyo Stock Exchange Standard Market. |
| 2022-07 |
2022: July: Relocated the Osaka Medical Remote Center to Tōjima, Kita-ku, Osaka City as part of business expansion. |
| 2024-10 |
2024: October: Relocated headquarters to Nishi-Shinjuku, Shinjuku-ku, Tokyo, as part of business expansion. |
| 2026-03 |
2026: March: Closure of Tennōbashi Office. |
