The company specialises in the manufacturing of amusement rides, stage equipment, and elevators.

[1] In 2012, Sansei Yusoki acquired a majority stake in United States–based amusement ride manufacturing firm, S&S Worldwide.

[2] As of 2013, the company is led by President Makoto Nakagawa and employs 700 staff.

[1] On January 1, 2014, the company began operating as Sansei Technologies, Inc.[3] On March 30, 2018, Sansei fully acquired Vekoma Rides, a Dutch manufacturer of roller coasters and other amusement rides.

[4] The majority of Sansei Technologies' manufacturing is done for Japanese parks.