Karen Winterhalter

Twenty years ago, Karen founded Onyx Health, building one of the leading healthcare marketing agencies in the industry. Under her leadership, the Newcastle-based agency has played a pivotal role in elevating the visibility and success of numerous healthcare businesses. Her focus is on providing strategic support to clients, leveraging her expertise to help SMEs and healthcare businesses develop and expand their reach in an increasingly complex communications landscape.

She is passionate about delivering marketing communications programmes and sales strategies that drive meaningful business growth. Karen’s extensive experience includes designing and executing initiatives that have resulted in tangible improvements in healthcare outcomes and increased market presence for SMEs and multinational organisations.

Her expertise spans a broad spectrum of areas, including high-level key opinion leader engagement, market access strategies, advocacy development, social marketing, digital communications, health policy, medical education, corporate communications, crisis and issues management, media relations, and strategic global communications management.

With a thorough understanding of the UK, EMEA, and global healthcare markets, Karen has held several senior positions within leading global communications firms. Her experience in navigating complex global matrix organisations has enabled her to develop and implement effective strategic communications solutions tailored to the evolving needs of healthcare businesses.

Karen’s focus has always been helping companies—particularly SMEs—raise their profiles, establish credibility, and achieve sustained success through impactful healthcare communications strategies.