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422 companies

Geoscout Geochemical Explorati

Location not listedUpdated Dec 2002

Geoscout Geochemical Exploration provides geochemical survey and exploration services, likely supporting maritime and offshore industries.

Geoservices

Location not listedUpdated Dec 2002

Geoservices is a global provider of geophysical and geotechnical services to the offshore oil and gas industry.

Geotechnical Data Conditioning

Location not listedUpdated Dec 2002

Geotechnical Data Conditioning provides specialized services in geotechnical data processing and analysis, supporting maritime and offshore engineering projects.

Germanischer Lloyd Aktiengesellschaft

Hamburg, GermanyUpdated Jul 2007

Germanischer Lloyd is an independent classification society which supervises safety and quality on behalf of their clients, mainly for ships and for maritime installations.

Gilmour Research

Yoxford,, Suffolk, United KingdomUpdated Sep 2006

Gilmour Research provides the Global Maritime Survey (GMS), the most comprehensive and up-to-date source of information on the global maritime market, including market sizes, sector activities, and trade segments to support global business decisions.

Giro Engineering Limited

Southampton, Hampshire, United KingdomUpdated Feb 2006

Giro Engineering Ltd design and manufacture sheathed fuel injection pipes and systems for diesel engines from 5 to 25,000 HP. Sheathed and unsheathed pipe assemblies are designed and manufactured for many OEMs. Giro can supply engine operators with sheathed assemblies when they are not available from the OEM. Giro sheathed fuel pipe assemblies incorporate own patents and features. Giro equipment is designed to protect engine operators and engines from burst or leaking pipes. Giro holds Type approvals from LR, ABS, BV and MoD(N) and is an approved supplier to the British MOD(Navy). Giro is LRQA audited to ISO 9001:1994

Glasgow Marine Services

Glasgow, Lanarkshire, United KingdomUpdated Dec 2000

AVAILABLE TO CARRY OUT INSPECTIONS, SURVEYS AT SHORT NOTICE OR ANY SUITABLE TYPE OF WORK RELATING TO THE MARINE INDUSTRY, WORLDWIDE

Global Maritime Consultancy Limited

Dartmouth, Nova Scotia, CanadaUpdated May 2005

Global Maritime Consultancy Limited is a marine, offshore, and engineering consultancy specializing in marine warranty surveying, marine operations, dynamic positioning services, and renewable energy projects including offshore wind.

Grand Isle Shipyard Abbyville

Abbeville, LA, United States

Grand Isle Shipyard is a longstanding oilfield service company founded in 1948, providing engineering, construction, fabrication, and specialty services primarily to the energy, industrial, infrastructure, and power sectors.

Greenwood Marine Management

Morgan City, LA, United StatesUpdated May 2026

Greenwood Marine Management, Inc. provides marine survey and inspection services, marine construction, conversions and repairs, vessel design and specification preparation, and project management services for marine vessels and related equipment.

Guardian Bureau of Shipping

Tartous, Ta, SyriaUpdated Dec 2006

Classification Socity authorized for Tonga, Korea, Mongolia and Comoros Flags We provide worlwide service for surveying according to IMO convention and GBS Rules

Guidance Navigation Limited

Leicester, United StatesUpdated Dec 2005

Guidance Navigation Limited specializes in dynamic positioning, docking control, shuttle mooring, tanker berthing, diver/ROV support, and hydrographic surveying services.

HINSIB

Tegucigalpa, F.M., HondurasUpdated Apr 2002
Port Agent

HINSIB provides worldwide surveying services according to IMO conventions and HINSIB class standards.

HUBEL Marine B.V.

Rotterdam, NetherlandsUpdated Dec 2005

representative’s office of “Panama Maritime Documentation Services Inc” (PMDS) which is a duly authorised organisation by the Governments of Panama,Belize & Bolivia for the survey and issuance of statutory certificates , based on Solas / Marpol and ISM requirements; The managing director is also appointed to act as Deputy registrar on behalf of Belize & Bolivia .

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.

Haveribesiktningar AB

Stockholm,, SwedenUpdated May 2026

Haveribesiktningar AB specializes in marine casualty surveys and investigations, providing expert assessments for the maritime industry.

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.

Heino O. Valvur Marine Consultant

Lafayette, CA, United StatesUpdated Nov 1998

Independent marine consultancy led by Heino O. Valvur, providing expert advisory, marine surveying, and expert witness services for maritime projects and operations.

Hi-Lite Signs Limited

Louth, Lincolnshire, United KingdomUpdated Mar 2002

Hi-Lite Signs are one of the top suppliers of signage to the offshore oil and gas industries. We keep a vast range of signs in stock and are able to manufacture a wide range of signs to order. We also carry out surveys onshore and offshore.

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

Holyhead Towing Co Ltd

United KingdomUpdated Dec 2000

Holyhead Towing owns and operates specialist shallow-draft tugs, multicats, workboats, survey, transport vessels, and crew boats.

Hull & Cargo Surveyors Inc.

Seattle, WA, United StatesUpdated Nov 1998

Hull & Cargo Surveyors Inc. is a Seattle-based marine surveying firm providing hull, cargo, and machinery surveys, vessel condition examinations, and marine warranty inspections in the Pacific Northwest.

Humphrey Inc.

San Diego, CA, United StatesUpdated Sep 2017

Humphrey, Inc. designs and manufactures precision guidance, control, and directional survey equipment including gyroscopes, rate sensors, accelerometers, magnetometers, and optical compasses for marine, aircraft, and missile applications.

Hydrovision Limited

Dyce, Aberdeen, United KingdomUpdated Sep 2002

Leading independent manufacturer of Remotely Operated Vehicles for underwater inspection, construction and survey; also hydraulic propulsion and process control systems.