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1,464 companies

Gryphon Cypher

30 Harbour Rd., Wan Chai, Hong Kong Sar, ChinaUpdated May 2026

Gryphon Cypher is a full-service engineering and business development consulting company specializing in the design, marketing, and implementation of marine navigation and communications systems.

Gulf Coast Air & Hydraulics Inc.

Mobile, AL, United StatesUpdated Nov 2003

Gulf Coast Air & Hydraulics is a full line distributor specializing in Air and Hydraulic Sales, Service, Fabrication and Installation for the Industrial and Marine Industry. Sales and Service capabilities available 24 hrs. a day, 7 days a week. Custom packages designed and manufactured to customer's specifications.

HARBOR MARINE

Callao, Peru

HARBOR MARINE is the largest naval retail store in Peru, offering a wide range of marine products including anchoring equipment, ropes, boat engines, maintenance supplies, electrical systems, navigation instruments, and water sports gear.

HNTB Corporation

Kansas City, MO, United StatesUpdated Feb 2002

HNTB Corporation is an employee-owned infrastructure firm specializing in architecture, engineering, planning, and construction management with expertise in bridges, highways, transit, and rail systems.

HOSE International

Aberdeen, Abredeenshire, United KingdomUpdated Nov 2004

Well control Assurance equipment audits. Management systems Pre Contract - Planed -Timed - heavy Intervention-commisioning World Wide Service and personnel.

HRP Thruster Systems B.V.

Krimpen aan de Lek, NetherlandsUpdated Apr 2005

HRP is manufacturer of 360 degrees steerable thruster system, available as main propulsion, auxiliary propulsion and Dynamic Positioning of both ocean going and inland ships.

HYDAC USA

United StatesUpdated May 2001

HYDAC USA provides hydraulic systems, components, and fluid engineering solutions for industrial and maritime applications.

HYTORC of Texas

Location not listedUpdated May 2026
Training

HYTORC of Texas provides sales, service, and support for industrial bolting systems including hydraulic, pneumatic, and electric tools, serving industries such as oil & gas, petrochemical, nuclear, and subsea.

Hamar Laser Instruments, Inc.

Danbury, CT, United StatesUpdated Oct 2002
Training

Hamar Laser Instruments, Inc. is a leading manufacturer of precision laser alignment systems with over 55 years of experience, specializing in ultra-precise alignment tools for various industrial applications.

Hamilton Ferris Company

Ashland, MA, United StatesUpdated May 2002

For over 20 years Hamilton Ferris Co. has been helping customers make and manage their own electrical power supply for Boats, Homes & RV's

Hamilton Jet Inc.(US)

Seattle,, WA, United StatesUpdated Jun 2006
Training

HamiltonJet Inc. is a leading provider of advanced waterjet propulsion systems and vessel autonomy solutions, serving sectors including search & rescue, fireboats, military patrol, fast ferries, pilot boats, wind farms, recreation, and fishing vessels.

Hammond Air Conditioning Ltd.

Ingersoll,, Ontario, CanadaUpdated Feb 2008

Hammond Air Conditioning Ltd. is a leading provider of integrated aftermarket air conditioning systems for heavy equipment, trucks, and marine applications, offering compact and energy-efficient solutions with factory support and parts service.

Hammonds Fuel Additives Inc.

Houston, TX, United StatesUpdated May 2026

Houston-based manufacturer founded in 1982 producing fuel additives (including the Biobor family for diesel and gasoline engines), fluid-powered additive injection systems, and water chlorination systems.

Hamworthy Svanehøj A/S

Svenstrup J., DenmarkUpdated Jan 2007

Hamworthy Svanehøj A/S, part of Wärtsilä since 2012, provides marine and offshore fluid handling systems including ballast water management, gas systems, exhaust gas cleaning, fresh water generation, inert gas systems, oil separation, and wastewater treatment solutions.

Harbormaster Marine, Inc.

Livonia,, MI, United StatesUpdated Apr 2005

Harbormaster Marine, Inc. is a US manufacturer of heavy-duty outboard drive marine propulsion systems and tunnel (bow) thrusters, known for durable, high-quality marine parts and worldwide service support.

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.

Hawboldt Industries

Chester,, NS, CanadaUpdated Apr 2006

Hawboldt Industries is an innovative, ISO 9001-certified manufacturer of marine deck equipment, winches, propellers and propeller repairs.

Hawthorne Power Systems

San Diego, CA, United StatesUpdated Aug 2002

Hawthorne Power Systems is a trusted provider of Caterpillar equipment rentals, sales, and services, offering power solutions for industrial, on-highway truck, switchgear, UPS, and marine applications since 1956.

Hayes Pump, Inc.

West Concord,, Massachusetts, United StatesUpdated Feb 2005

Hayes Pump, Inc. is the largest and oldest industrial, commercial, and municipal pump distributor in the Northeast USA, offering a broad range of pumps, engineered pump systems, and repair services.