Principals Mark Keegan and Tony Donato have 40 years of combined experience conducting consumer research studies in the context of litigation.
Together they have designed, executed, and critiqued hundreds of consumer surveys, and have also collaborated extensively on cases involving marketing, economics, business, and financial issues. Mr. Keegan is the primary testifying expert and been accepted as a consumer survey expert in dozens of cases and trials.

Mark Keegan
Mark Keegan brings a wide breadth of experience to Keegan & Donato Consulting, having spent nearly 25 years formulating case strategies in complex litigation.

As a founding partner of both Keegan & Donato Consulting and its predecessor organization, Keegan & Company, Mr. Keegan has actively consulted on a variety of litigation issues ranging from Lanham Act claims to marketing and international business.
Prior to his work with Keegan & Donato Consulting, Mr. Keegan assisted a diverse range of companies as a marketing strategist and operations manager. From working with top brands to create innovative online advertising solutions to positioning and communicating a company’s competitive advantage, Mr. Keegan’s practical execution of successful marketing strategies has benefited numerous organizations.
Mr. Keegan is also a Professional Certified Marketer (PCM), an American Marketing Association certification conferred upon individuals who have demonstrated a mastery of comprehensive and core marketing knowledge and principles.
Tony Donato
Tony Donato has served as a consultant in complex litigation matters since 2004. He has a broad range of experience in research, strategy, survey design & execution, data analysis and case management.
Mr. Donato has consulted on a wide variety of marketing, intellectual property, and consumer behavior cases covering a diverse range of trademark issues.
Mr. Donato has a strong analytical background which he developed in his prior employment as a member of the research team at Harvard Medical School’s Division on Addictions. He is the co-author of several peer-reviewed journal articles.
