Dr. John Castle

John R. Castle, Sc.D. taught Entrepreneurship at the University of Washington Foster School of Business, Seattle University and the Bainbridge Graduate Institute. His practical classes inspired many former students to found innovative new companies in many industries. He founded and ran many companies during his forty year business career, including several that went public or were acquired. He now advises companies on how to turn their ideas and technologies into profitable businesses and his innovative methods help businesses focus on the elements of the venture that are essential for success.

He previously was co-founder and CEO of Cantametrix, a music software company, CEO of Hamilton-Thorn, a medical electronics and diagnostics company; Executive VP and co-founder of Seragen, a biotechnology company, and a partner in Washington Biotechnology Funding, a seed venture capital fund specializing in medical technologies. In addition he has been a principal, director or advisor to many other early-stage companies including, RO Health, Cadence Biomedical, Textile Delivery, Webrotator, Energizing Solutions, Microgreen Polymers, Sharebuilder, Goodwell Technologies, Olympus Games, 3 Phase Energy, Savtech, YourSports, Sunriver Specialties, Biohesion, and American BioDesign, and is a member of the Keiretsu Forum which provides financing to early-stage companies. He has provided leadership or guidance to several large companies including Danaher Corp., FMC Corp., Procter & Gamble, Penwest, Johnson Controls, Washington Dental Service, Eldec, Arthur D. Little and the Harris Group. He has been an expert witness in matters related to management and director responsibilities in entrepreneurial ventures.

He has coached several prize-winning teams in national business plan competitions and in the UW Business Plan Competition. He has been honored several times as one of the University of Washington’s outstanding business professors and has been an invited speaker at numerous events for entrepreneurs. He has served on the boards of non-profits GC3, Encompass, MIT Enterprise Forum of the Northwest and the Northwest Entrepreneur Network and is a graduate of MIT in Chemical Engineering, and the Harvard Graduate School of Business.

Dr. Castle spends his free time in the outdoors, hiking, snowshoeing and playing golf with family and friends.