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1,920 companies

Halliburton Energy Services/DEG

Houston, Texas, United StatesUpdated Jul 2006

Halliburton delivers advanced products and services to meet the evolving needs of the global energy industry, focusing on innovation, reliability, and performance.

Hamakua Energy Partners

Haina,, Hawaii, United StatesUpdated May 2026

Hamakua Energy Partners operates Hamakua, the largest electrical generating plant on the Big Island of Hawaii, a 63 MW combined-cycle cogeneration facility developed by a partnership between J.A. Jones Ventures and TECO Power Services Corp.

Hamburg Messe

Hamburg,, GermanyUpdated Aug 2004

Organizes national and international trade fairs, congresses, and events at a central venue in Hamburg, Germany, offering extensive facilities and services for exhibitors and visitors.

Hamilton, Miller & Birthisel LLP

Miami,, Florida, United StatesUpdated Dec 2006

Hamilton, Miller & Birthisel LLP is a law firm specializing in insurance defense, general liability, transportation and trucking, admiralty and maritime law, and commercial litigation with offices in multiple U.S. cities and Caribbean locations.

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.

Hancock County Port and Harbor Commission

Bay St. Louis,, MS, United StatesUpdated Dec 2006

The Hancock County Port and Harbor Commission serves as the Economic Development Authority, Port Authority, and Airport Authority for Hancock County, Mississippi, operating the Port Bienville Industrial Park, Port Bienville Short Line Railroad, and Stennis International Airport/Airpark.

Hanna Cylinders

Chicago, IL, United StatesUpdated Apr 2005

Hanna Cylinders, founded in 1901 in Chicago, designs and manufactures premium quality industrial pneumatic and hydraulic cylinders, specializing in custom engineered solutions for heavy duty applications.

Hansa Treuhand AG & Co

GermanyUpdated Jun 2000

Hansa Treuhand Finance GmbH & Co. KG specializes in Private Markets investments, offering expertise in asset classes primarily reserved for institutional investors, with services including information, webinars, and investment support.

Hanseatic Shipping Co Ltd

Limassol, CyprusUpdated Feb 2008

Hanseatic SHipping is the biggest company in the worldwide Schulte Group of Shipmanagement Companies. Currently Hanseatic has 185 ships in management, of which 65 are also in full technical management. The fleet comprises container, oil/chemical/product tankers, gascarriers, bulkers, reefers, VLCC's, RoRo and semi-container ships, FPSO's. Hanseatic has a subsidiary management company in Singapore and an affiliated managment company in Hamburg, Reimarus Schiffahrtskontor GmbH & Co, KG.

Hardy Boat Cruises

New Harbor,, Maine, United StatesUpdated May 2026

Hardy Boat Cruises is a small eco-tourism business offering ferry services and wildlife cruises between New Harbor and Monhegan Island, focusing on sustainability, conservation, and education.

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.

Harley Valve & Instrument Co.

Columbia,, SC, United StatesUpdated Aug 2006

Harley Valve & Instrument Co. is an industrial valve and instrumentation distributor based in Columbia, South Carolina, supplying valves and process instrumentation products to industrial customers.

Hart's RV Park

Waterloo, AL, United StatesUpdated May 2026

Hart's RV Park & Campground in Waterloo, Alabama offers short term camping and long term leases on Pickwick Lake, with amenities for RVs, tents, and prefab homes, and activities including fishing, boating, hunting, and birdwatching.

Harvest Tool Company

Location not listedUpdated Dec 2002

Harvest Tool Company, LLC manufactures specialized down hole drilling tools including underreamers, drill bits, section mills, casing cutters, hole openers, and projectile tools, serving the oil and gas exploration and development industry worldwide.

Hasimoglu Ltd

Cam Dibi, Izmir, TurkeyUpdated Mar 2002

Hasimoglu Ltd is a Turkish company based in Cam Dibi offering high-speed fiber internet and related telecommunication services.

Hawaii Marine Co.

Kaneohe, HI, United StatesUpdated Apr 2005

Hawaii Marine Company provides naval architectural, marine engineering, expert witness, marine surveying, computer aided design and drafting services compliant with USCG, ABS, and ABYC standards.

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.

Healy Tibbitts Builders

Alea, HI, United StatesUpdated Apr 2005

Healy Tibbitts Builders, Inc., a wholly owned subsidiary of Weeks Marine since 1989, is a leader in marine construction, pile-driving, and deep-shoring systems in Hawaii and the Pacific region. The company also specializes in dredging, transportation, marine heavy lifts, and bulk stevedoring.

Helkama Bica (Head Office)

Hanko,, FinlandUpdated Apr 2007

Helmacab specializes in the development and production of cables for marine, telecom, and industrial applications, offering customized cabling solutions with ISO 9001 quality certification.

Hellenic Seaways

Piraeus,, GreeceUpdated May 2026

Hellenic Seaways is a Greek ferry company operating passenger and vehicle ferry services primarily in the Aegean Sea, offering online booking, mobile app services, and a loyalty program.