Gilmartin Capital

Founded in 2021, Gilmartin Capital is a venture capital firm based in Larkspur, California. It focuses on private investments in the medical device, life science tools, diagnostics, and digital health sectors.

Jonathan Demchick

Co-Founder and Principal

David Lewis

Co-Founder and Managing Partner

Past deals in Hospital

Alleviant Medical

Venture Round in 2025
Alleviant Medical, Inc. is a medical device company headquartered in Austin, Texas, that specializes in developing innovative therapies for congestive heart failure. Founded in 2017, the company has created a proprietary transcatheter device that addresses the symptoms of heart failure by relieving pressure buildup in the left atrium of the heart. This minimally-invasive technology aims to improve the quality of life for patients and significantly reduce hospital admissions related to heart failure exacerbations, ultimately benefiting millions of Americans affected by this condition. Alleviant Medical is committed to transforming the treatment landscape for congestive heart failure through its advanced medical devices.

Alleviant Medical

Venture Round in 2023
Alleviant Medical, Inc. is a medical device company headquartered in Austin, Texas, that specializes in developing innovative therapies for congestive heart failure. Founded in 2017, the company has created a proprietary transcatheter device that addresses the symptoms of heart failure by relieving pressure buildup in the left atrium of the heart. This minimally-invasive technology aims to improve the quality of life for patients and significantly reduce hospital admissions related to heart failure exacerbations, ultimately benefiting millions of Americans affected by this condition. Alleviant Medical is committed to transforming the treatment landscape for congestive heart failure through its advanced medical devices.
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