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649 companies

Halton Oy Halton Marine

Lahti, FinlandUpdated Mar 2008

Halton Marine, part of Halton Oy, specializes in advanced ventilation and indoor air solutions for marine and offshore environments.

Harbor District, Inc.

Milwaukee, WI, United StatesUpdated May 2026

Harbor District, Inc. is a non-profit organization leading the revitalization of Milwaukee's Harbor District by connecting people to place, supporting a healthy business community, and improving the natural environment.

Harding ESE, Inc.

United StatesUpdated May 2002

MACTEC, Inc and its subsidiaries Harding ESE and Pacific Environmental Services, are full service environmental consulting and engineering companies drawing on the resources of a nationwide network of offices.

Harley Marine Services, Inc. (Olympic Tug & Barge)

Seattle, WA, United StatesUpdated Feb 2005

Olympic Tug & Barge, Inc. (an operation of Harley Marine Services, Inc.) is a privately owned fuel transportation company operating in the Puget Sound area of Washington and the Willamette and Columbia Rivers of Oregon. We began operation in 1987, dedicated to superior customer service, quality operating procedures and exceptional safety standards. Our company is recognized for extensive safety programs and systems that ensure a safe environment for the care and custody of your cargo.

Hawke International

Ashton-under-Lyne, Lancashire, United KingdomUpdated Oct 2002

Hawke International, a Hubbell company, supplies explosion protected electrical equipment including cable glands, enclosures, and connectors for harsh and hazardous environments in marine and industrial markets.

Heightwise Rope Access solutions

Nedlands, Western Australia, AustraliaUpdated May 2002

Specialists in all aspects of difficult access maintenace at heights. Get Heightwise for all or any of your high access work needs: From industrial spray application to roller, brush and sign work. Also full inspection and maintenace services for the marine and Port industries

Herbert Engineering Corp.

Alameda, CA, United StatesUpdated May 2002

Herbert Engineering Corp. provides comprehensive ship design, offshore engineering, environmental compliance, and retrofit services with a focus on optimized safety, efficiency, and environmental performance.

Herbosch-Kiere NV

BelgiumUpdated Jun 2000

Herbosch-Kiere NV is a Belgian company specializing in civil and hydraulic engineering, maritime and offshore services, foundations, and environmental projects related to water infrastructure.

Hermont Marine Inc.

Lachine,, Quebec, CanadaUpdated Apr 2004

Hermont Marine ia a North American supplier of cost saving solutions in areas of safety, energy efficiency, and pollution abatement. Our goal is to provide our customers with quality products and expert advice, i.e. to help you meet your operational objectives within environmental constraints.

Hippwrap Containment

San Diego,, CA, United StatesUpdated Feb 2007

HippWrap Containment specializes in shrink-wrap containment systems and protective coverings for environmental protection, storage, transport, and project enclosures with over 35 years of experience.

Hitachi Zosen Corp (Tokyo Head Office)

Chiyoda-ku,, Tokyo, JapanUpdated Dec 2006

Hitachi Zosen Corp is a Japanese company contributing to environmental facilities, machinery, infrastructure, decarbonization technologies, and marine equipment, supporting safe and sustainable society development.

Holyhead Marine Services Ltd

United KingdomUpdated May 2004

Holyhead Marine Services has one of the best equipped and most up to date yards of its size in the country. The capacity to lift up to 100 tonnes and the ability to work on them in environmentally secure buildings added to a skilled and permanent workforce offers an unrivalled service to our customers. The company design, constructs and fits out a wide range of commercial vessels in steel, aluminium and GRP including pilot boats, patrol boats, workboats and tugs. The company also undertakes refit and repairs on commercial craft such as lifeboats, patrol boats, tugs, and pilot boats in the yard in steel, aluminium, GRP and timber. Services to the offshore industry include testing, maintenance and repair of flexible floating hoses and associated equipment for the transfer of oil. Hoses of up to 24" bore with an overall assembled length of 350m can be handled. Facilities are available for testing in accordance with OCIMF rules. The companies Quality Management System has been approved by Lloyds Register Quality Assurance to BS EN ISO 9001:1994

Hood River Extension Service

Hood River, OR, United StatesUpdated May 2026
Training

Oregon State University's Extension Service delivers research-based knowledge and education to strengthen communities, economies, and natural resources across Oregon, including coastal and marine research at its Newport center.

Houseboat Outlet Inc.

Lafayette, LA, United StatesUpdated Oct 2002

Houseboat Outlet Inc. is the designer and manufacturer of one of the most affordable, state of the art, and top-quality U.S. Coast Guard certified type II marine sanitation devices on the market today (THE MSD). THE MSD meets all IMO standards and is at the apex of environmental safety.

HudsonTrident (UK) Limited

Pennsauken, NJ, United StatesUpdated Jan 2005
Training

HudsonAnalytix is an international risk solutions company providing expert risk management and incident response support to the maritime industry, including shipping companies, ports, and government entities.

Hydro Chemicals (UK) Ltd.

Chester, Cheshire, United KingdomUpdated Nov 1998

HydroChem UK specialises in water treatment services and chemical products, providing traditional, advanced and environmentally-friendly solutions across the UK.

HydroChem Industrial Services Inc.

San Francisco, CA, United StatesUpdated May 2026

HydroChem Industrial Services (HPC Industrial) provides industrial cleaning, environmental, and specialty maintenance services including hydroblasting, chemical cleaning, and waste transport.

Hydronamic BV

Papendrecht, NetherlandsUpdated Jul 2005

Hydronamic BV specializes in consultancy services in wet civil engineering, focusing on hydrology, morphology, coastal and river engineering, port construction, environmental engineering, and offshore technology.

Høglund Marine Automasjon AS

Tønsberg, Tønsberg, NorwayUpdated May 2026

Høglund Marine Automasjon AS designs, engineers, and delivers advanced integrated marine power, automation, and digital solutions to enhance vessel performance, safety, and environmental credentials worldwide.

I.H.I Head Office

JapanUpdated Jul 2002

I.H.I is a Japanese company specializing in technology development and business models related to maritime, shipbuilding, and environmental systems, aiming to create sustainable societies through innovation.

ICI Paints Devoe Coatings

Pittsburgh, PA, United StatesUpdated May 2026

Devoe Protective and Marine Coatings, part of ICI Paints, supplies high-performance protective coatings, linings, and finishes for tanks, pipelines, and industrial structures in marine and industrial environments.

IDS International Ltd

Dorset,, England, United KingdomUpdated Aug 2003

IDS International Ltd. provides security services for all aspects of lifestyle and business security management to the following: + Industrial and Corporate; + Maritime Industry; + High Risk/High Value Individuals; + Sports Governing Bodies; + Entertainment Industry PROTECTIVE SECURITY: Ability to protect a company or individual in a global environment from threat, harm or loss, in ordeR to assist with the successful achievement of the clients desired goals and objectives with the use of the following services: + Close Protection and Body Guarding Services; + Maritime Security; + Professional Training; + Asset Protection; + Access Control; + Specialist Transportation SECURITY INTELLIGENCE: Collection and supply of information relating to any threat to a company or individual in a global environment. The use of timely, accurate and confidential intelligence in co-operation with the client at all levels to achieve effective results with the use of the following services: + Security Consultancy; + Global Information Research and Analysis; + Surveillance and Investigation Services; + Asset Location and Recovery

IMS Environmental Services

Norfolk, VA, United StatesUpdated Dec 2006
Training

IMS Environmental Services provides spill response, tank and pipeline cleaning, OSHA training, remediation, and environmental consulting services in Norfolk, VA.