# Firefly > Virtual\-first employer health plan integrating primary care, behavioral health, and specialty care\. ## At a glance | Field | Value | | --- | --- | | Type | Carrier | | Region | NA | | Headquarters | Watertown, Massachusetts, USA | | Founded | 2017 | | Stage | Growth | | Employees | 51-200 | ## Overview Firefly Health is a direct-to-employer health insurance carrier based in Watertown, Massachusetts, offering a virtual-first health plan focused on primary care, behavioral health, and specialty care coordination. Founded by physicians Andy Ellner, M.D., and Jeff Greenberg, M.D., the company provides employers an alternative group health plan that embeds primary care access at no additional cost to members. Coverage is currently available in Massachusetts, Maine, New York, and New Jersey, with nationwide in-home and in-person care available through the Firefly Nearby network. The company's model assigns each member a dedicated care team comprising a primary care physician, nurse practitioner, health guide, and behavioral health specialist. This team-based approach integrates virtual visits with a growing physical care network. Firefly's technology platform connects the member-facing mobile app with electronic health records and claims management, enabling coordinated care across virtual and in-person settings. Members show documented higher screening rates versus HEDIS benchmarks, including 82% higher depression screening and 13% higher breast cancer screening. Firefly Health is privately held and Series B funded, with USD 117 million raised to date. In 2025, the company reported 15% total cost of care savings across its Administrative Services Only book of business, with 100% of ASO customers achieving measurable savings. The company serves more than 20,000 members nationally. ## Links - Website: - Directory profile: - Linkedin: - Leadership: - News/articles: --- *Last updated: 2026\-05\-12*