BCO – a nickname of the club – started in the Belgian Second Division but promoted in its first season after it took the title.

In the 1974–75 season the club made its first appearance in Europe, when it played 10 games in the Korać Cup.

In 1979 the first trophy was won by Oostende: the Belgian Basketball Cup with Ron Adams as head coach.

In 1981 the first national title became a fact for BC Oostende, Roger Dutremble was head coach.

In the second Telenet season Jean-Marc Jaumin was fired by the club and the Croatian coach Dario Gjergja took over his tasks.

[2][3] After that the club won the national title, by beating Spirou Charleroi 3–2 in the Finals, Game 5 ended in 75–74 after overtime.

[4][5] Star player of the team was Matt Lojeski, who was named League MVP.

[15] On July 2, 2020, head coach Dario Gjergja extended his contract for five more year.