Theresa Sullivan

Theresa Sullivan

  • Washington, DC
Executive Vice President
  • Ph.D. in Economics, Georgetown University
  • M.A. in Economics, Georgetown University
  • A.B. in Government and Economics, Georgetown University

Theresa Sullivan is an Executive Vice President with Compass Lexecon and a Managing Director of the firm’s Washington, DC office. Dr. Sullivan has extensive experience in consulting to private companies and Federal agencies on antitrust matters. She has led analyses of proposed mergers and of the competitive effects of business practices. Her experience in monopolization cases includes evaluation of claims of predation, patent misuse, collusion, and exclusionary conduct. In conjunction with her work on mergers and monopolization cases, Dr. Sullivan has analyzed a wide variety of industries including credit and debit networks and processing, semiconductors, telecommunications, healthcare, health insurance, retailing, consumer durables, medical products, food products, high-speed modems, specialized business credit, mainframe servers, compact disc technology, and airlines.

Dr. Sullivan earned her Ph.D. and M.A. in Economics from Georgetown University and her A.B. in Government and Economics from Georgetown University. Prior to joining Compass Lexecon, Dr. Sullivan was a Vice President in the Competition Practice of CRA International.  She has taught at the University of San Francisco and Georgetown University.