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9,992 companies

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.

One Herd Shipmanagement Pte Ltd

SingaporeUpdated Jun 2000

One Herd Shipmanagement Pte Ltd is a maritime company registered in Singapore with no specific maritime or shipping services detailed on the provided website.

OneMarine

Houston, TX, United StatesUpdated Feb 2008

SIRE inspections. Vetting reports for terminals and charterers.

OneStone Consulting Group GmbH

Buxtehude,, GermanyUpdated Nov 2006

OneStone Consulting Group GmbH is a global management consulting firm specializing in market analysis and strategic planning for plant and machinery suppliers, cement, building materials, environmental, mining, and process industries.

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.

Onstream European Consultancy B.V.

Den Helder, NetherlandsUpdated Mar 2003

ONSTREAM is an international, multi-discipline group supplying integrated manpower, logistics, and asset integrity services to the oil and gas industries with over 40 years of global industrial experience.

Onta

Location not listedUpdated Dec 2002

IVMatters, Inc. is a consultancy and strategic advisory firm specializing in medical devices, healthcare IT, and related products, offering services in product development, regulatory affairs, business development, and strategic marketing.

Ontario Waterway Cruises, Inc.

Orillia, ON, CanadaUpdated Mar 2004

Ontario Waterway Cruises, Inc. offers peaceful and inspiring river cruises on Ontario's heritage waterways aboard the 45 passenger Kawartha Voyageur riverboat, providing traditional meals and a friendly atmosphere.

Ontopia

Oslo, NorwayUpdated Oct 2001
Training

Ontopia provides open source software products and consultancy services for building and deploying Topic Maps-based semantic technology applications.

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.

Optimar, Inc.

Hopkinton, New Hampshire, United StatesUpdated May 2026

Optimar, Inc. is a maritime technology company specializing in hydrodynamics, hull design, and environmental risk assessment for various vessel types including ferries and fast ferries.

Opus Petroleum Engineering Ltd

Location not listedUpdated Dec 2002
Training

Calgary-based consulting company providing practical training courses and consulting for formation water interpretation and QGIS tutorials for the petroleum industry.

Orcina Ltd.

Cumbria,, United KingdomUpdated Jul 2005
Training

Orcina Ltd is a UK-based company specializing in marine systems design and analysis software, known for its OrcaFlex software used in offshore dynamic analysis across sectors such as oil & gas, renewables, and defence.

Oregon Camera Systems, LLC

St. Helens,, OR, United StatesUpdated Oct 2004

Oregon Camera Systems, LLC provides specialized camera and imaging solutions, likely serving maritime and industrial sectors.