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

8 past transactions

Shoulder Innovations

Series E in 2025
Shoulder Innovations designs and manufactures medical devices for shoulder replacement surgery, focusing on inset glenoid fixation technology to provide a stable glenoid platform and reliable fixation. Its product portfolio includes InSet Total Shoulder Arthroplasty, InSet Reverse Shoulder Arthroplasty, ProVoyance Shoulder Planning Software, and InSet Tray System, along with associated instrumentation. The company distributes its products through partners in the United States and aims to reduce operative time and overall healthcare costs while improving post-surgical implant stability. Founded in 2009, the company is based in Holland, Michigan.

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.

Kestra Medical Technologies

Private Equity Round in 2024
Kestra Medical Technologies develops and commercializes wearable medical devices and digital health solutions for cardiovascular care. The company provides monitoring, data collection, and therapeutic intervention to protect at-risk patients, with real-time and retrospective analysis. Its Cardiac Recovery System platform integrates monitoring, therapy, digital health tools, and patient support into a single solution, anchored by the ASSURE wearable cardioverter defibrillator designed to prevent sudden cardiac death and aid cardiac recovery. Kestra aims to transform patient outcomes in cardiovascular disease through intuitive, connected technologies.

InSightec

Private Equity Round in 2024
InSightec Ltd. is a pioneering company based in Tirat Carmel, Israel, specializing in non-invasive medical treatments through its Exablate platform, which employs MR guided focused ultrasound technology. Founded in 1999, InSightec develops and distributes systems that address various oncology and gynecology conditions, including the Exablate Neuro for personalized thalamotomy in movement disorders and pain management. The Exablate system has received multiple regulatory approvals, including CE marks and FDA approval, for treatments of symptomatic uterine fibroids, pain from bone metastases, and adenomyosis. The company provides comprehensive support services, including onsite clinical training and maintenance, to medical professionals using its technology in facilities across Israel and internationally. InSightec maintains a strategic partnership with Lantheus Holdings and has expanded its presence in Europe, Asia, and the Americas, earning recognition for its innovative contributions to the field of acoustic surgery.

Shoulder Innovations

Series D in 2023
Shoulder Innovations designs and manufactures medical devices for shoulder replacement surgery, focusing on inset glenoid fixation technology to provide a stable glenoid platform and reliable fixation. Its product portfolio includes InSet Total Shoulder Arthroplasty, InSet Reverse Shoulder Arthroplasty, ProVoyance Shoulder Planning Software, and InSet Tray System, along with associated instrumentation. The company distributes its products through partners in the United States and aims to reduce operative time and overall healthcare costs while improving post-surgical implant stability. Founded in 2009, the company is based in Holland, Michigan.

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.

SetPoint Medical Corporation

Venture Round in 2023
SetPoint Medical Corporation is a clinical-stage medical device company developing implantable neuromodulation therapies to treat chronic inflammatory and autoimmune diseases. Its platform uses vagus nerve stimulation to activate the body's inflammatory reflex, aiming to produce a systemic immune-restorative effect and offer an alternative to drug therapy for conditions such as rheumatoid arthritis and inflammatory bowel disease. Based in Valencia, California.

Galvanize Therapeutics

Series B in 2022
Galvanize Therapeutics develops energy-based medical devices designed to improve biological processes. Its technology uses short-duration, high-voltage electrical pulses to create electric fields that destabilize cells, enabling enhanced healthcare services for patients.
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