Dave Schaeffer founded Cogent Communications in August 1999 and is the Chief Executive Officer. Prior to founding Cogent Communications, Mr. Schaeffer founded Pathnet, Inc. He also developed a regional paging carrier and numerous SMR systems throughout the United States. Mr. Schaeffer has founded and operated a total of seven successful businesses, including the second-largest delivery and ground transportation enterprise in the United States and a property and casualty underwriter. Mr. Schaeffer has also developed 46 commercial real estate properties in the Washington D.C. metro area. Mr. Schaeffer holds a B.S. in Physics from the University of Maryland, where he was also a Ph.D. candidate in Economics. His diverse background has allowed him to build entrepreneurial management teams capable of building and managing national networks.