Argus Press is a British publishing company. It was acquired by British Electric Traction (BET) in 1966, and became the publishing arm of that company.
The software division, Argus Press Software, was active in the 1980s, producing games for several home computer systems of the time.
It acquired Quicksilva and Starcade in 1984, Bug Byte in 1985, and also published titles by the wargame company MC Lothlorien.
In 1987 Argus Press Software was purchased by its managing director, Stephen Hall, and renamed GrandSlam Entertainment.
Source: Wikipedia, "Argus Press," available under the CC-BY-SA License.