Catherine M. Sullivan

Burson-Marsteller LLC provides global public relations and communications services. Its services include consumer and brand marketing, corporate and financial communications, digital, healthcare communications and market access, health tech, issues and crisis management, media, public affairs, sports marketing, and technology communications. The firm offers services for global companies, industry associations, professional services firms, governments, and organizations. The company was founded by Harold Burson and Bill Marsteller on March 1, 1953 and is headquartered in New York, NY.

Porter Novelli, Inc. provides public relations services. It specializes in direct consumer contact, corporate, public affairs, health care marketing and strategy for technology companies. The company was founded by Jack Porter and William Novelli in 1972 and is headquartered in New York, NY.