Marissa Sullivan, Senior Director

Marissa Sullivan provides strategic communications support to a wide array of clients in a variety of industries including banking, non-profits, for-profits, financial services, higher education, real estate development and telecommunications.

Marissa helps clients by developing PR campaigns, navigating communications issues, media relations, positioning thought leaders, developing messaging, written content, social-digital content, and other materials.

Previously, Marissa served as a Director at O’Neill and Associates in Boston, Massachusetts which merged with Seven Letter in 2020. There she worked on PR accounts for clients including AIS, American Consumer Credit Counseling, Anna Maria College, Born To Run Foundation, Boston Pride, Faneuil Hall Marketplace, FanExpo Boston, HarborOne Bank, Murphy & King, P.C., National Braille Press, RCN Boston, Redgate, Tufts Health Plan. Marissa is an alumnus of the O’Neill and Associates internship program. Prior to joining O’Neill and Associates, Marissa gained valuable communications experience as a Marketing intern at Baltimore-based SpecWorks, Inc., where she was responsible for researching prospective clients, aiding in graphic design projects, and maintaining and enhancing clients’ social media/e-marketing presence.

Marissa currently resides in Boston, MA and holds a B.A. from Loyola University Maryland.

Marissa works in the Seven Letter Boston office.