Global company search

Maritime Directory

Search active maritime directory records by company, service, and location.

Find a maritime company

Reset filters

Search results

1,190 companies

Offshore Systems International Ltd.

North Vancouver, BC, CanadaUpdated Feb 2003

Offshore System Ltd. (OSL) is a public company located in Vancouver, British Columbia. Founded in 1977, OSL is the world leader in Electronic Chart Display and Information Systems (ECDIS) technology, and has one of the largest ECDIS type installed bases. The primary product of Offshore Systems Ltd. is ECPINS (Electronic Chart Precise Integrated Navigation System) which provides mariners with precise positioning information for the promotion of safety in navigation. OSL's ECPINS® is installed on Canadian Coast Guard, the US Coast Guard vessels, and numerous worldwide commercial carriers. ECPINS is the primary navigation system for the Canadian Navy.

Offshore Technology

Location not listedUpdated Dec 2002

Offshore Technology provides news, analysis, and market insights focused on the offshore oil and gas industry, covering exploration, production, offshore services, and related sectors.

Oglebay Norton

Cleveland,, OH, United StatesUpdated Jul 2003

We own strategically located, proven, long-life reserves of high-quality industrial minerals. Great Lakes Minerals The largest and highest-quality limestone producer on the Great Lakes, with quarries, processing plants, docking facilities and the largest fleet of self-unloading U.S.- Flag vessels on the Lakes. Global Stone Operates limestone quarries and lime and limestone processing facilities serving customers located primarily in the Mid-Atlantic and southeastern United States. Performance Minerals Mines and processes specialized industrial minerals, primarily high-purity silica sands and muscovite mica, with facilities in the southwestern United States, Ohio and North Carolina.

Oglebay Norton Marine Services

Cleveland,, OH, United StatesUpdated Jul 2003

Oglebay Norton Marine Services is a shipping company operating the largest fleet by vessel count on the Great Lakes, transporting bulk commodities with 12 vessels ranging from 618 to 1,000 feet in length.

Oil Shipping

Rotterdam, NetherlandsUpdated Aug 2006

Oil Shipping is the leading company in industrial oil transport

Oil Shipping (Bunkering) Ltd

Piraeus, GreeceUpdated Nov 2001
Bunker Supplier

Oil Shipping (Bunkering) B.V. provides advanced shipping and tank farm solutions including tank storage, product handling, and product shipping with a diverse fleet of vessels.

Oldendorff Carriers GmbH & Co. KG

Lübeck, GermanyUpdated Mar 2004
Freight/RFQ

Oldendorff Carriers GmbH & Co. KG is a leading global dry bulk shipping company operating about 780 chartered and owned vessels, specializing in dry bulk logistics, transshipment, and sustainable shipping solutions.

Oldendorff Pte Ltd

SingaporeUpdated Jul 2002
Freight/RFQ

Oldendorff Carriers is a leading global dry bulk shipping company operating around 780 chartered and owned vessels, specializing in bulk transportation, transshipment, and dry cargo logistics.

On-Waves

Reykjavík,, IcelandUpdated Dec 2007

On-Waves provides seamless mobile phone connectivity solutions on board cruise and ferry vessels, enabling usage similar to onshore experience.

Onomichi Dockyard Co Ltd

Chuo-ku, Kobe, JapanUpdated Jun 2011

Onomichi Dockyard Co Ltd, established in 1943 in Hiroshima Prefecture, specializes in shipbuilding, ship repair, and construction, producing a variety of high-performance vessels including bulk carriers, tankers, and Ro/Ro cargo ships.

OptiMarin AS

Stamford, CT, United StatesUpdated May 2026

OptiMarin develops and manufactures complete systems for Ballast Water Treatment. The OptiMar Ballast System is based on solids separation and UV irradiation and utilizes the existing ballast pumps aboard the vessel. The OptiMar System can be retrofitted to existing vessels or installed in new builds and we handle flow rates ranging from 100 m3/h up to 3000 m3/h per ballast pump.

Oran Bunker Ltd

Istanbul, TurkeyUpdated Jan 2000
Bunker Supplier

Oran Bunker Ltd is a bunker supplier based in Istanbul, Turkey, providing marine fuel services to vessels calling at regional ports.

Oregon State Univ.College of Oceanography

Newport, OR, United StatesUpdated May 2026
Training

Oregon State University's College of Earth, Ocean, and Atmospheric Sciences operates marine research facilities at the Hatfield Marine Science Center in Newport, OR, serving as home port for research vessels including the RV Elakha and the RV Taani (under construction).

Orkot Marine Bearings

Rotherham, United KingdomUpdated Dec 2003

Orkot Marine Bearings is a world leading manufacturer and supplier of bearings to the shipping and marine industries. Part of the Trelleborg Group and supported by an extensive global network of manufacturing plants and distributors, Orkot Marine Bearings are able to offer the highest levels of service, particularly on rudder bearings. Supplying both newbuildings and the repair market our extensive stocks and rapid response are unrivalled in the industry. With over 25 years experience and over 1000 succesfully fitted vessels around the world, Orkot have the solution to your ruddder or other marine bearing problem.

Osprey Ship Management, Inc.

Bethesda, Maryland, United StatesUpdated Aug 2006

Osprey Ship Management is a shipping management company which was established in 1993. The company currently manages five vessels which all have military contracts and are pre-positioned all over the world.

Otto Candies, LLC

Des Allemands, LA, United StatesUpdated Mar 2005

Otto Candies, LLC is a family-owned company providing premier offshore marine services with a diverse fleet supporting Offshore Oil and Gas, LNG, and Offshore Wind industries.

Otto Piening GmbH

Gluckstadt,, (Blomesche Wildnis), GermanyUpdated Jun 2006

Otto Piening GmbH specializes in manufacturing and maintaining advanced propellers, stern gears, and propulsion systems for ships, vessels, and yachts, offering custom solutions and 24/7 repair services.

Ove Juel-Christensen A/S

Copenhagen, DenmarkUpdated May 2006

Ove Juel-Christensen A/S is a ship chandler and supplier based in Copenhagen, Denmark, providing essential goods and services to vessels.

Overseas Shipholding Group, Inc. (“OSG”)

New York, NY, United StatesUpdated Jan 2007

Overseas Shipholding Group, Inc. is a leading provider of energy transportation services, operating a fleet of vessels that transport crude oil, petroleum products, and dry bulk commodities worldwide.

P&O Maritime Services P/L

AustraliaUpdated Jul 2002
Port Agent

P&O Maritime Logistics, operating under the DP World brand, is a global leader in marine solutions specializing in offshore energy, port services, and cargo transport with a focus on safe, reliable, and sustainable operations.

PBP Fabrication Inc./Rio-Pecos

Location not listedUpdated Dec 2002

PBP Fabrication Inc./Rio-Pecos is a pressure vessel and piping fabricator specializing in ASME code pressure vessels, custom skids, platforms, large specialty fabrications, and fabricated piping for the oil and gas industry with over 40 years of experience.

PGA Marina Center

Palm Beach Gardens, FL, United States

Hemingway’s is a boatyard in Palm Beach Gardens offering hauling, maintenance, cleaning, storage, and painting services for vessels since 1946.