Tim Smith

Tim Smith founded GSI in 1996 after nearly 20 years of designing legislative strategies in both Congress and the private sector. As chief counsel to Senator John Breaux (D-LA), Smith was ultimately responsible for all legislation initiated or vetted by a leading moderate in the Democratic Leadership. Of particular priority were the senator’s memberships on the Commerce and Environment & Public Works Committees, and their broad authorizing jurisdiction over such matters as telecommunications, aviation, surface transportation, nuclear energy, off-shore drilling, and the major environmental laws: Superfund, RCRA, and the Clean Air and Clean Water Acts. Smith’s tenure with Breaux began in the U.S. House of Representatives in 1981, and during that time he represented the then-congressman on a host of national and international environmental and energy issues, including the UN-sponsored Law of the Sea Treaty negotiations. Immediately prior to forming GSI, Smith served as vice president of government affairs for the Nuclear Energy Institute where he managed a 10-member staff and $2 million annual budget, in addition to the association’s political action committee. Smith is a Phi Beta Kappa graduate of Florida State University and the American University’s Washington School of Law.


Mike Callahan

Mike Callahan, through his company CCMSC Inc, partners with GSI and brings his expertise in intergovernmental relations, appropriations, infrastructure security issues, trade and nuclear safety. Prior to joining GSI, Callahan led the Congressional Liaison efforts of the Nuclear Regulatory Commission and successfully guided the agency’s program during a long period of contentiousness and impassioned debate. He participated in official missions to South America, Asia, Europe, and the emerging democracies of the former Soviet Union. His early assignments in NRC included managing hiring and recruiting activities. He counseled the Chairman on sensitive matters relating to investigations, management and personnel. Prior to joining NRC, Callahan worked in evaluating major components of the nation’s reserve forces at the National Guard Bureau.