our people

Sean Hartman

Sr Principal

Sean has been with Keystone since 2005 and opened and runs the Seattle office. With experience working in both large corporations and startups, Sean brings a wealth of experience to industries including aerospace, cloud computing, software and hardware, electric vehicles and automotive, telecommunications, e-commerce, and agtech. He collaborates with clients on a diverse range of strategic and operational issues including digital transformation, ecosystem analysis, product management and development, innovation, big data and analytics, and supply chain. He is a graduate of Harvard Business School’s General Management Program and holds an AB degree from Princeton University.

Prior to Keystone, Sean helped build Avaki Corporation, an enterprise data integration start-up, through its acquisition by Sybase. He's also worked with government, non-profit, and for-profit entities on infrastructure projects, smart growth, and environmental and social sustainability initiatives both domestically and abroad, with a particular focus on sub-Saharan Africa.

Whether mountaineering, cross-country skiing, freediving, hunting, fishing, adventure racing, hiking, biking, paddling, or doing an ultra-endurance athletic event, Sean is happiest when active and outdoors.