Martis Capital has taken a majority stake in Deerfield Group, a Pennsylvania-based healthcare marketing and advertising agency. The private equity investment replaces Edgewater Funds as the company's primary backer, though financial terms remain undisclosed. Frank Burrell continues as CEO of the firm.

Healthcare marketing agencies have drawn consistent private equity interest as pharmaceutical and medical device companies increasingly outsource promotional strategies. These businesses typically generate steady revenue through long-term contracts with clients who require specialized expertise in navigating complex regulatory requirements. The sector has proven resilient during economic cycles.

The deal includes a strategic board appointment, with Alexandra von Plato joining Deerfield's board of directors. Such additions often signal plans for expansion or new market initiatives within the healthcare communications space. Private equity firms typically install experienced directors to guide portfolio companies through growth phases.

Martis Capital gains exposure to a specialized niche within marketing services, while Deerfield Group now has backing to pursue acquisitions or geographic expansion. The ownership change reflects continued consolidation in healthcare-focused marketing agencies serving an aging population and expanding pharmaceutical market.