Thornhill Medical

The Thornhill Medical team is made up of high-calibre, talented, mission-driven professionals who thrive in our fast-paced, multi-disciplinary environment. We combine our diverse specialties and perspectives, from engineering to research to production to customer care and more, to make the inconceivable a reality. A seasoned professional with senior leadership experience across Fortune 500 to start-up companies, Lesley Gouldie brings an impressive record of financial and strategic excellence in technology, biotechnology and education to lead Thornhill Medical as President and CEO. Under her leadership, the company has expanded its global footprint, producing ground-breaking oxygen-related medical technologies and experiencing unparalleled growth. Thornhill Medical was named in the Globe and Mail, Report on Business, as one of Canada’s Top Growing companies for 2020, 2021 and 2022. To steer Thornhill Medical smoothly through this unprecedented growth and the COVID-19 pandemic, Lesley draws on her proven strategic expertise, multidisciplined experience cultivating innovative manufacturing and supply chain alliances and scaling fast-growth teams, and an entrepreneurial mindset which she fosters across the organization. Lesley’s many interests include education, technology, women executives, and the growth of Canadian innovation-based companies. Most recently, Lesley was named as one of the 100 Most Powerful Canadians for 2024, earning the #3 spot on the Maclean’s Magazine Power List for Health Care.