Landau Associates, Inc. Share: Environmental EngineeringGeotechnical EngineeringHazardous WasteHydrology/Hydrogeology Landau Associates, Inc. Visit Website 130 Second Ave South Ste 101 Edmonds, WA 98020-3512 (425) 778-0907 (425) 778-6409 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.