Trees and buildings in the Charlestown Navy Yard
MEET THE TEAM

Tessa Sullivan

Assistant Account Executive, Public Relations
Tessa Sullivan

WHY CASTLE

Castle is a well-oiled machine—everyone is committed to our clients’ collective success and to helping each other, no matter what!

Tessa Sullivan

Rooted in curiosity and driven by purpose, I help Castle’s clients build visibility, strengthen relationships, and achieve lasting success. My approach to public relations is anchored in the belief that meaningful results stem from meaningful relationships built on trust and accountability.

Always eager to shine a light on our clients, I connect their missions with timely storytelling opportunities. Whether helping to elevate a nonprofit organization or supporting the growth of startup companies, I use my creativity, adaptability, and curiosity to support clients across multiple industries.

With a degree in Public Relations from Boston University’s College of Communication and a minor in Entrepreneurship and Innovation from the Questrom School of Business, I bring strategic insight and strong communication skills to my clients.

Outside of work, you can find me behind a good book, baking, deepening my yoga practice, or running my embroidery business.

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