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  • Geosystems
    Geosystems
    215-654-9600
    514 Pennsylvania Ave., 19034  Fort Washington

    Principals Since GeoSystems Consultants, Incorporated was founded in 1993, principals Craig R. Calabria, Ph.D., P.E., Ram D. Singh , Ph.D., P.E., and Arthur H. Dvinoff, Ph.D., P.E., and their staff strive to bring quality consultative and laboratory testing services to their clients in geotechnical…