He owned the "Crawdaddy Club" in London where The Rolling Stones were the house band, and he was involved with their early management. He hired The Yardbirds as a replacement and managed them. He was also their producer from the beginning through 1966. In 1967, he started Marmalade Records (distributed by Polydor), which featured Brian Auger, Julie Driscoll and the Trinity, Blossom Toes, and early recordings by Graham Gouldman and Kevin Godley and Lol Creme, who became 10cc. The label closed in 1969. Gomelsky was also instrumental in the careers of Soft Machine, Daevid Allen and Gong, Magma and Material.