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Leo Guthart founded Topspin in 2000. Prior to Topspin, he served as Vice Chairman of Pittway Corporation and Chief Executive Officer of its Security Group of companies, including Ademco, up until it was sold to Honeywell in 2000. After Pittway’s sale to Honeywell, he served as Chairman of the Security and Fire Solutions Group of Honeywell International. He was also Chairman of publicly-held Cylink Corporation, a leading U.S. supplier of encryption equipment that was sold to SafeNet Inc. Leo currently serves as a Director of AptarGroup, Inc. (NYSE: ATR), an international producer of dispensing valves, pumps, and closures for pharmaceuticals and perfumes. He is a Trustee of the Cold Spring Harbor Laboratory and served as its Treasurer as well as Hofstra University where he served as Chairman of its Board.

Leo is a graduate of Harvard College where he received a BA degree in Physics in 1958, and of Harvard Business School where he was a George F. Baker Scholar and received both an MBA in 1960 and a Doctorate in Business Administration with a specialty in Corporate Finance in 1966.