Federal, State & County Agencies: Alameda County Public Works, Bureau of Reclamation-Denver, Bureau of Reclamation Washington, Chesapeake Bay Bridge & Tunnel Authority, DOT Marine Administration, Federal Highway Administration, Hampton Roads Sanitation District, Iowa Dept. of Natural Resources, Kiawah Island, Maine DOT, Maryland Dept. of Natural Resources, NY/NJ Port Authority, NYS Canal, Ohio Dept. of Natural Resources, PPI, Southern Company Services, Spawar Systems  Center, State of Alaska, Suffolk County Public Works, Texas Water Development Board, TVA, USGS Lincoln, USGS St. Petersburg, USGS-Columbia, USGS-Flagstaff, VA DOT, Walton County……………………. Dredging Companies: AIS Construction, Great Lakes Dredge & Dock, Manson Construction, Norfolk Dredging, Safe Harbor Marine Services, Shepard Marine, Southern Dredging, Tidewater Construction……………………. Engineering and Survey Companies: A.I. Associates, AB Consultants, Alpine Ocean, American Marine, American Surveying & Consultants, American Underwater Search & Survey, Anderson, Eckstein and Westrick, Aqua Survey, ASCG, Atkinson, Avirom & Associates, Avirom Survey, Ayers Associates, Bay Marine, Boswell Engineering, Brunswick Surveying, Canter Surveying, Chris Ransome Assoc., Civil & Environmental Consultants, Coastal Planning, Concord Engineering & Surveying, Continental Engineers, Cottrell Contracting, Council Tech, Dalton, Olmstead, Fuglevand, Disch Construction, DonJon Marine, EA Engineering, Eagle Navigation, Eagle North America, East Coast Engineering, Engineering Consulting Services, FMSM Engineers, General Engineering, General Engineering Labs, GeoMetrics GPS, Geometrics Surveying, Glenn Springs Holdings, Granite Engineering, Greenhorne & O,Mara, Gulf Sand & Gravel, Hughes & Associates, Hutchinson Group, Hydro Data, Hydro Solutions, Hydrographic Solutions, Hydrographic Surveys, Imagemap, Inc. J.T. Blankship, JEO Consulting Group, Kiewit Offshore Services, LW Matteson Inc., Lynch Giuliano, Mainstream Commercial Divers, Marinex, McAnly Engineering & Design, McLean Contracting, Meridian Surveying and Engineering, Michael Baker, Minister Glaeser Surveyors, Municipal Land Survey, Norman Schile, Northeast Diving Services, Otronix System, PCA Engineering, Phoenix Environmental, Pro Dive, R & M Consultants, Robinson Engineering, Rogers Surveying, S.T. Hudson Engineers, Santa Marine, Sea Surveyor, Shawnee Survey & Construction, SK&W, Spaulding Consultants, Tetra Tech, Tilton & Associates, Waterways , Surveys, William Seymor, Wilson Engineering, Wink Engineering, Zambrana ……………………. International Companies: Armada Nacional, BIWTA, Cane Associates, Coastal Dynamics, Government of Bermuda, Grupo Ginpro, Isidoro Sanchez, Louis Berger International, Maldives, Nautel, Universite de Savoie……………………. Colleges & Universities: Murray State, Smith College, Syracuse University, Texas A & M, University of Idaho, University of Virginia, Virginia Polytechnic Institute…………………….