Professor Charm has been a partner in the firm of Youngman & Charm since 1972. The firm specializes in directorship functions for firms owned and operated by entrepreneurs and in assisting companies that are experiencing operating and/or financial problems. Youngman & Charm has operated in a variety of industries, channels of distribution, and has been involved in many successful financings and acquisitions and mergers.

From 1977 through 1990, Professor Charm was chairman and president of a major distributor and specialty retail chain. He has been active in other specialty marketing companies, and served as a member of the Board of Directors of the International Franchise Association .He was a director of the National Association of Corporate Directors-New England. He currently is on the board of several firms where is generally sits as the lead director.

Professor Charm has taught throughout the world on a variety of topics regarding entrepreneurship and governance. He is on the President's Council at Babson, and is the recipient of the Appel Award for Entrepreneurship.