Of the club's predecessor sides only VfR Ohligs would distinguish itself with any time spent in first-division football when they played the 1940–41 season in the Gauliga Niederrhein before being relegated on the heels of last place finish.

In 1949, after World War II, the club was re-formed as Union Ohligs and began play in the 2nd Oberliga West (Gruppe 2).

Renamed SG Union Solingen the next year, the team earned promotion to the 2.Bundesliga-Nord by the middle of the decade.

They would stay fourteen seasons in the professional ranks with their best finishes being a fifth and sixth in 1984–85.

Solingen returned to the Amateur-Oberliga Nordrhein (III) in 1989: by this time the club was suffering financially and would soon be bankrupt.