Since 2005, Mark E. Crosby has served as president and chief executive officer of the Enterprise Wireless Alliance, a national association representing the interests of business enterprises that rely on wireless communications systems. Throughout his career, Mark has been an advocate for the efficient and effective use of spectrum dedicated for the use of business enterprises. Under his leadership, EWA has become recognized as a fierce defender of EWA-member spectrum rights, an advocate for responsible regulatory policy and the most trusted FCC-certified frequency advisory committee. Prior to joining EWA, Mark was president of Access Spectrum LLC, a company he co-founded in 2000 to pioneer spectrum band management for private wireless licensees deploying voice and data technologies. From 1975 until 2000, Mark served as president of the Special Industrial Radio Service Association and, following radio service consolidation, the Industrial Telecommunications Association.