John Guilfoy is the Chief Revenue Officer for Green Street. As a member of the executive team, he is responsible for driving the firm’s global commercial strategy and delivering sustained revenue growth. In this role, John leads Sales, Account Management, Marketing, and Revenue Operations, ensuring the commercial organization delivers strong client outcomes and captures market opportunity.

John brings more than 25 years of experience in the technology, data and information services sectors, leading teams across sales, product, marketing, and operations. He has a track record of building go-to-market organizations, scaling recurring revenue, and expanding market share for high-growth SaaS and data businesses.

Prior to joining Green Street, John held senior roles at TravelClick and Accesso, where he was responsible for new market entry, sales team expansion, and double-digit revenue growth. His career experience also includes running global commercial teams at America Express and advising companies on corporate finance and restructuring at Alvarez & Marsal.

John earned an MBA from the joint global program of Columbia Business School and London Business School and a BA in Economics from Columbia University.