Brian Johnston

Principal

Brian Johnston joined Gilmartin Group in 2019 and is based in New York. He partners with leaders across the medical device space to develop and operationalize comprehensive investor relations and capital markets strategies as they navigate critical inflection points—from early-stage venture fundraising and crossover rounds to IPOs and high-growth execution.

With over a decade of experience, Brian has advised dozens of private and public MedTech companies through high-stakes transitions. He helps management teams address the evolving demands of Wall Street and their Boards—crafting strategies to communicate long-term vision and value amid uncertainty, secure fair valuations, and manage stakeholder expectations with clarity and confidence.

Brian leads a cross-functional team that supports both the strategic and tactical elements of IR and capital markets advisory. His work spans narrative development, investor targeting, earnings and event preparation, and communication planning across clinical, regulatory, and commercial milestones. Since joining Gilmartin, Brian has played a central role in establishing the firm as the market-leading MedTech IPO advisory platform—helping executives maintain executional focus while building lasting value and durable credibility in the market.

Prior to Gilmartin, Brian was part of The Ruth Group’s healthcare practice, where he supported clients through critical corporate milestones and investor-facing initiatives. Earlier in his career, he worked as a financial analyst at a New York-based family office and served as a communications and strategy consultant to the New Orleans City Council.

Brian earned his BA in Economics and International Relations from Tulane University, graduating with honors.

Interesting Facts About Brian

• Long Island native who never misses an opportunity to visit the beach
• Takes a Sisyphean approach to visiting every hidden gem restaurant in New York
• Can be found recharging on hikes and aimless city strolls — has hiked in 10 national parks (and counting!)
• Was a paid cast member on one episode of Saturday Night Live