David (Dave) Marston is a Cortland Advisors LLC Advisor, bringing deep experience in business and technology strategy, new product development, and handson finance and operations leadership. Originally from Ontario, Canada, he began his career in brand management at Procter & Gamble and FritoLay. After moving to the United States, he led strategy and operations consulting engagements across retail and consumer goods, biotech/OTC, healthcare, global banking, and electric utilities. His roles have included Director of IT Strategy at KPMG Advisory and Archstone Consulting (now Hackett) in New York, and Engagement Leader at Computer Sciences Corp (now DXC Technology). Since relocating to Florida in 2014, he has served as COO for a boutique investment bank and a law firm, overseeing finance, IT, HR, operations, and marketing.

Dave helps clients “see the problem, solve the problem,” a principle drawn from his MBA program. Through targeted, respectful inquiry, he works to clarify strategy, design operating models for disciplined execution, and ensure effective use of financial and human capital. His work includes developing new product launch models deployed in 25 countries for Johnson & Johnson, custom IT applications for CVS Health, manufacturing processes for cardiac catheters at Biosense Webster, and promotion and inventory management models for a beverage alcohol retailer.

He holds a Bachelor of Commerce (Honors) from Queen’s University in Canada, an MBA with Beta Gamma Sigma honors from Columbia Business School, with concentrations in Finance and Operations, and held FINRA General Securities Representative and Operations Professional licenses from 2020 to 2023.