Crosby Marketing Communications announced that Emmy Stuart has been promoted to Associate Strategist and Matt Mazer to Digital Program Manager.

As an Associate Strategist, Stuart will help guide a wide variety of communications programs for the Military OneSource program, the Department of Defense’s flagship digital services platform that supports service members and their families across the globe. She holds a bachelor’s degree in Marketing from the College of Charleston and was a member of its All-American sailing crew. In 2018, Stuart’s Annapolis-based sailing team brought home the gold medal in the J22 World Championship.

As a Digital Program Manager, Mazer manages client web platforms and digital marketing outreach efforts. Prior to joining Crosby, he worked at Omnitracs and Telemundo Media, the Hispanic-focused division of NBCUniversal. Mazer graduated from Penn State with a Bachelor of Arts Degree in Telecommunications and a minor in Psychology.

Crosby provides integrated advertising, public relations, social media and digital marketing services through specialized practices in Healthcare, Government, Nonprofits & Causes and Military & Veterans. The firm ranks #7 on PRWeek’s list of largest healthcare PR firms, #28 on O’Dwyer’s list of national PR agencies, and is a top provider on the GSA Advertising and Integrated Marketing Services (AIMS) schedule. Crosby’s mission of Inspiring Actions That Matter™ helps clients make a positive impact for individuals, families, communities and society.

Crosby, a Capitol Communicator sponsor, was named a Top Workplace by The Washington Post in 2017 and 2018 for achieving outstanding employee engagement, work/life balance, pay and benefits, and company leadership. To learn more, visit

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