Marissa Sullivan


Marissa Sullivan serves as a director within O’Neill and Associates’ communications division.  In this capacity, Ms. Sullivan provides client support, including messaging and branding, media relations, marketing, and social media strategy and implementation.

Ms. Sullivan is an alumna of O’Neill and Associates’ internship program, where she assisted in the development and implementation of communications strategies for a wide range of clients. During her time as an intern, she conducted research, drafted and distributed press releases, compiled media lists, assisted with media planning and outreach, and created social media content.

Prior to O’Neill and Associates, Ms. Sullivan gained valuable communications experience at Baltimore-based SpecWorks, Inc., where she was responsible for updating databases, researching prospective clients, managing client invoices, aiding in graphic design projects, and maintaining and enhancing clients’ social media/e-marketing presence.

Ms. Sullivan received her Bachelor of Arts degree from Loyola University Maryland, where she concentrated in advertising and public relations with a minor in marketing.  Ms. Sullivan was also actively involved on campus, serving as a member of the women’s club lacrosse team, the Advertising Club, and the Senior Class Gift Committee. She currently resides in Boston, Massachusetts.

You can reach Ms. Sullivan at 617-646-1067.