The story
A4tech was founded in 1987 by Robert Cheng. A4tech used to make peripherals mainly for office and home use. After seeing growth and having a large growth of customers, they soon targeted gamers with their gaming peripherals.
As of 2015, A4Tech has turned its attention to the North American market with a new gaming brand called "Bloody".
From Wikipedia’s article on A4Tech, shared under CC BY-SA 4.0.3