Mr. Zammit is a founding partner and the director of MISCO. He holds a number of directorships in both private and public companies. At MISCO he has developed the market research division of the organisation, and is also a trainer as well as a consultant to a number of business organisations,
focusing on strategic issues related to a business development, leadership, human resources development, management and marketing. He is a former chairman of the Employment and Training Corporation, Malta International Airport plc, Air Malta plc and Malta Enterprise.