After working and recording with Tony Crombie and his orchestra in 1954, together with leading UK-based jazz musicians such as Crombie, Dizzy Reece, Joe Temperley and Harry South, Kozak went on to join the Vic Ash Quartet, which recorded with Maxine Sullivan.
[2] By 1962, he was leading his own quartet, which included Harry South and Dick Morrissey, and spent several months in India.
[3] Shortly after their return to the UK, Kozak started working as an executive at Brian Epstein's NEMS Enterprises, as well as managing artists such as Shawn Phillips (1965–67), Donovan[4] (1965–May 1968), and the duo Michael-Claire (1968).
[citation needed] Sugar was a company run by directors Kozak and Mike Collier.
[6] Artists that recorded for the label included Claude Sang, Joe White, Frenz,[7] Raymond Morrison.