mixed gas diving

Associated Underwater Services, Inc. (AUS) is a commercial dive company located in Washington State that provides underwater and marine construction services as well as remotely operated vehicle services (ROV), salvage, ship husbandry and sonar services on a global scale. AUS is Woman Owned and Operated, with offices in Spokane and Seattle, Washington, and Northern California. Originally founded in 1988, the company was reorganized in 2001 under the ownership of Nanci and Kerry Donohue.

Bridge & Pier RepairCertified Underwater Welding and BurningCofferdams / Stream Diversions / Limpet Damscommercial divingContaminated Water Divingdiver assisted dredgingEel Grass MappingHigh Altitude DivingHyperbaric Tunneling Interventions and ConsultingIntakes and OutfallsLake TapsPipeline Installation and ModificationsPositioning SystemsPotable Water Diving (AWWA Standards)Remote Operated Vehicles (ROV)Sonar Inspections (Single and Multi Beam)underwater core drilling

Ballard Marine Construction has worked in the heavy civil marine construction industry since the 1970s, providing turnkey infrastructure inspection, construction, rehabilitation, and maintenance solutions on projects worldwide. The company serves clients in the power, transportation, environmental, water and wastewater, and industrial industries, and is a member of Traylor Construction Group.

bathymetric surveyingcathodic protectioncertified welding to AWS standardscommercial divingconcrete repair and leak sealingdredgingepoxy and chemical grout injectionhyperbaric supportlaser scanningmultibeampile rehabilitationROV inspectionssalvage and spill responsesaturation divingsonar inspectionunderwater welding

Crux Diving Inc. is a commercial diving and underwater services company founded in 2016 in Kenmore, WA. It provides certified commercial divers for industrial, oil and gas, marine repair, salvage, environmental surveys and response, and underwater construction projects across multiple states and American Samoa. The company is ADCI and ABS certified and is a member of the Association of Diving Contractors International.

concrete workcore drillingdemolitionheavy liftingNitrox divingROV inspectionssalvage operationssaturation divingsteel erectionsunderwater burningunderwater welding

Dead Calm Seas Marine Services (DCS) is a commercial diving and marine services company founded in 2019 by Tim Wakefield. Staffed by certified divers, DCS performs underwater operations across marine and inland environments, including submarine cable installation and burial, inspections, salvage, marine construction, demolition and repair, and oil & gas work. Dive systems range from surface air and mixed gas to saturation diving, with adherence to USCG, CAL/OSHA, ADCI, and IMCA regulations.

3D modelingcommercial divinggeophysical surveyGPS/GNSS positioninghydrographic surveyLIDARmarine constructionmarine surveymultibeam sonarnon-destructive testingrope accessROV operationssalvage operationssaturation divingside scan sonarsub-bottom profilingsubsea cable installation and burialtopographic surveyUnderwater archaeology