Matrix Capital Markets Group Inc. announced that David Corbett, CFA, has joined the firm as a director of the company’s downstream energy and convenience retail investment banking group, and Kyle Tipping has been promoted to associate. Corbett has more than 15 years of experience advising companies in the downstream energy and multisite retail sectors, including convenience retailing, petroleum marketing and distribution, propane distribution, heating oil distribution, lubricants distribution, and petroleum logistics.