Myron started his working career at J Illman & Co whose subsidiaries included Illman Plastics and SA PVC Cables. In 1989 he was, as joint MD, a driving force in the merger with Elcentre which resulted in the formation of Voltex Limited. In 1992 Voltex Limited listed and Myron became the chairman and CEO of the company. In 1998 Voltex sold its manufacturing arm to Powertech and Myron was elected to the board of Powertech and its holding company Altron on which he still serves to date. In 2002 the wholesale arm of the company was sold to Bidvest Holdings and Myron joined the board of Bidvest Holdings Limited and served until 2011. He was chairman of numerous Bidvest subsidiaries.

Currently, Myron is the CEO of Genstar Holdings (Pty) Ltd a private investment company which he and his son co-own with Calculus Capital. Its subsidiaries include Global Cables, Genstar Lighting and Oakleaf Investment Holdings.