Havas Gemini, LLC | 701 followers on LinkedIn. Havas Gemini is the market access center of excellence for the Havas Health and You network of agencies. | Havas Gemini is the market access center of excellence for the Havas Health and You network of companies and develops innovative, intelligent, and integrated solutions to meet our clients’ unique challenges in the payer and related health care business segments. Havas Gemini is staffed with client-facing personnel who have real-world payer and pharma marketing experiences. Our account team is supported by an award-winning creative team and the global resources of the largest communications company in the world.