Graham J. Desvernine combined his background as a Special Agent and Supervisor for the FBI with his private sector experience to form Desvernine Associates in 1981. Pierre P. Merkl joined Desvernine Associates the following year and was named the Director of Investigations in 1988. The firm's executive and support staff is located in a suite of offices in downtown San Francisco, with operatives based throughout the Bay Area. Desvernine Associates' staff includes investigators based in Los Angeles, San Diego and Seattle. We maintain official presences in Mexico City and Guadalajara, Mexico; Panama City, Panama; and Quito, Ecuador.