The company became defunct on January 1, 2020 when all their assets and employees were transferred to SystemSoft Beta, Inc.

[From MobyGames]

Former SystemSoft Alpha staff include:

Ishikawa Jun'ichi
Ooura Kiyomi
Takamura Mariko (Takamura Mariwo)
Tatsuoki Naoyuki
Ueda Motoki (Ueda Metawo)
Yamada Takayuki
Yamamoto Tetsuya