Collaborative. Curious. Insightful.

Tina Hannagan, Chief Commercial Officer

As Chief Commercial Officer at Definitive Healthcare, Tina leads the company’s go-to-market strategy, aligning sales, marketing, and customer success to accelerate growth and deliver exceptional value to clients. She is responsible for driving commercial excellence and ensuring that every customer interaction reflects the company’s deep commitment to innovation, partnership, and results.

With over 20 years of experience in the data and analytics industry, Tina brings a proven track record of leading high-performing teams and scaling businesses through strategic vision and data-driven decision-making. Her leadership is marked by a relentless focus on understanding customer needs, developing impactful go-to-market strategies, and building strong, lasting client relationships.

Prior to joining Definitive Healthcare, Tina served as Executive Vice President and General Manager at Fusable, where she was instrumental in driving business transformation and revenue growth. She also held senior leadership roles at Dun & Bradstreet, including Senior Vice President of Shared Services, where she led enterprise initiatives to optimize operational efficiency and customer engagement.

Tina holds a Master of Business Administration and a Bachelor of Science in Economics from the University of Delaware.