Sun Electronics was a player in the early 80's arcade market. They only made a few game before changing their name to Sun Corporation of Japan. Then in 1989 the once again underwent a change of name to SunSoft. The newly renamed SunSoft began to concentrate on console games (as opposed to their earlier Sun Electronics arcade titles).
The most well known Sun Electronics title is Kangaroo, which they licensed to Atari Games (their other games only enjoyed limited success).
Sun Electronics Games