SIMMOD Links FAA, who originally developed SIMMOD AirportTools, vendor of Visual SIMMOD ATAC, vendor of SIMMOD Plus! The European SIMMOD User's Group (ESUG) Consulting Companies who use SIMMOD, in alphabetical order: ASM Consulting ATAC Coffman Associates Dayl Cohen Associates Edwards and Kelcey HNTB Corporation InteliSim Landrum & Brown Leigh Fisher Associates LeTech, Inc. Parsons Brinckerhoff Ricondo & Associates TAMS TransSolutions Return to NASUG Homepage