After the war Reader set up his own production company, Ralph Reader Limited, which revived many shows he had produced before the war. The first postwar Gang Show ran for three weeks at the Blackpool Opera House and broke the theatre's records. He also began producing the London Gang Show in 1950, usually at the Golders Green Hippodrome in north London, and wrote more songs and musical plays for the Scout Association. He produced the Gang Show annually until 1974, and his association with it continued until his death.