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451 companies

GCG Consultants

Houston,, TX, United StatesUpdated May 2026

Marine Technical and Maritime Security Consultant with over 30 years experience including Naval, Special Operations, Maritime Technical and Offshore assignments will tailor a program to address the Maritime Security needs and concerns of the ship operating company, port facility or offshore operator.

GCS - Matt Houlson

Location not listedUpdated Jan 2003

GCS - Matt Houlson appears to be a geophysicist, potentially offering services related to geophysical surveys or marine geophysics.

GEOCON

Axminster, Devon, United KingdomUpdated May 2026

The Geocon Group is one of the world’s leading international earth science consultancies, providing comprehensive management and consultancy services in all aspects of exploration, engineering, information technology and HSE in both Upstream and Downstream development.

Gardline Surveys (Far East) Ltd

Singapore, SingaporeUpdated Jul 2005

Gardline Surveys (Far East) Ltd provides geophysical, geotechnical, and environmental marine survey services including 3D seismic, site investigation, seabed mapping, and marine mammal observation.

Gardline Surveys Ltd

Norfolk,, United KingdomUpdated Jul 2005

Gardline Surveys Ltd provides geophysical, geotechnical, and environmental marine survey services including high resolution 3D seismic, site investigation, seabed mapping, and marine mammal observation.

Garvey Marine Inc.

Pekin, IL, United StatesUpdated Nov 1998

Garvey Marine, Inc. was a marine harbor services company operating six locations along the Illinois River system (Lemont, Ottawa, Pekin, Channahon, Morris, and Seneca). It was acquired by American River Transportation Company (ARTCO), a subsidiary of ADM, in 2006.

Garvey Marine, Inc.

St. Charles, Il, United StatesUpdated Mar 2001

Garvey Marine, Inc. is a maritime company based in St. Charles, United States, specializing in marine services and equipment.

GeoTomo LLC

Location not listedUpdated May 2026

GeoTomo LLC develops high-end geophysical software products and provides advanced data processing services for imaging near-surface and subsurface geological systems, specializing in seismic data processing and modeling.

Geodivining International

Turriff,, Aberdeenshire, United KingdomUpdated Jul 2004

Geodivining International provides geophysical survey services, specializing in marine and underwater surveys.

Geolink (UK) Ltd

Aberdeen, Grampian, United KingdomUpdated May 2003

Geolink (UK) Ltd. provides MWD and LWD equipment for sale to Independent Service providers. Designer and Manufacturer of Standard Negative and Positive mud pulse and Electromagnetic telemetry Directional Surveying systems including a series of compatible options such as Natural Gamma Ray detection, Induction Resistivity LWD, Downhole Shock and Vibration monitoring, Slim hole options to 2-7/8" and Retrievable tool options.

Geomatics Information & Trading Centre (GITC), BV

Lemmer,, Friesland, NetherlandsUpdated Dec 2004

GITC is an international publishing house with more than 15 years experience in: + Providing information at the right level + At the forefront of worldwide information dissemination in the international surveying and mapping fields of geomatics and hydrography + Expert in publishing professional magazines, specialised publications and market reports throughout the world. + Competent partner for consulting and intercession in the fields of geomatics, hydrography and surveying-related activities.

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.

Gretna Machine & Iron Works

Harvey, LA, United StatesUpdated Nov 1998

Gretna Machine & Iron Works (GMIW) is a Harvey, Louisiana shipyard providing drydocking, steel fabrication, and machining services for inland and Gulf Coast vessels including towboats and barges.

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