Stockholms Hamn AB (Stockholms Hamnar) provides transportation and port services. The company offers water level and wind conditions services, port and traffic control, pricing, berths, bridges, diving permissions, locks, and infrastructure services. Stockholms Hamn conducts operations in various ports of Sweden.

Stolt-Nielsen Limited (SNL) is a long-term investor and manager of businesses focused on opportunities in logistics, distribution and aquaculture. The Stolt-Nielsen portfolio consists of its three global bulk-liquid and chemicals logistics businesses – Stolt Tankers, Stolthaven Terminals and Stolt Tank Containers – Stolt Sea Farm and a number of LNG investments.

Stone Marine Propulsion is one of the world’s leading designers and manufacturers of ship propellers. A pioneer of screw propulsion they can trace their history back to the earliest days of propeller manufacturing in the 19th century. They are based out of United Kingdom.

Stones Marina, over its 40 years, has grown into a people place of the first order, made up of a fifteen acre community of the friendliest boaters and residents that users will ever find.

Stormer Marine is a young Dutch shipyard that builds workboats for discerning professional clients worldwide. They build a boat as per specific application. Fast passenger transport requires a different design than heavy towing. That’s why, they build boats in different categories, such as Tug, Patrol, Rescue, Porter and RIB series.

Strangford Moorings is a family run business and have been established for 20 years in Strangford Lough, Northern Ireland. Originally providing moorings for pleasure craft throughout the lough they have now become an established provider and maintainer of aids to navigation throughout Ireland.

Headquartered in Singapore, Strategic Marine (S) Pte Ltd ('Strategic Marine') is a dynamic shipbuilding company with an international book of business and is renowned for producing quality, high performance commercial and governmental vessels for markets across the globe. Strategic Marine’s growing portfolio has seen the company’s capabilities expand to offer larger, purpose-built steel vessels.

Streaker Marine stock a large selection of new boats from the best Australian boating brands. They have boats to suit everyone from Quintrex aluminium fishing boats to the big CruiseCraft fibreglass hardtops.

Stream Marine Training (SMT) is the UK’s best maritime training company. It is a world class provider of STCW firefighting, fire prevention, survival craft and health and safety approved and certified training courses to the global maritime, oil and gas, renewables and construction industries.

Streamline Marine is an established boat building company with over 50 years’ experience within the industry. Specializing in new build boat construction, their team of specialists can take individual requirements and incorporate this into range of products.

With more than 40 years of experience in the business, Streamlined Propeller Repairs can repair all types of marine propellers and materials using aluminium, bronze, stainless steel. They use the latest American repair technology and provide quality repairs. They can repair propellers up to 24 inches within 2-3 working days. They supply all types of marine propellers throughout the UK.

The Strela Shiprepair Yard emerged from the ship repair department of MV Werft Stralsund and consists of a highly motivated team that is fully committed to its customers.

Strömma Turism & Sjöfart AB (Stromma Group) produces experiences that aim to give every single guest memories for life. Stromma is the leading operator in tours and activities in Northern Europe with approx. 20 brands in 6 countries. Stromma's brands include the well-known names Göta Kanal Rederiaktiebolag, Paddan Sightseeing, Strömma Kanalbolaget, Canal Tours Copenhagen, Helsinki Sightseeing, Canal Tours Amsterdam.

Stromme was established in 1971 as the first dedicated cargo hold cleaning company in the marine industry.

At STS Defence, they are a UK based technology and engineering company, specializing in mission-critical communications, electronics and intelligent systems. They operate in markets that include the defence, marine, aerospace and nuclear sectors and they help their customers to resolve complex technical challenges; innovating, designing and manufacturing equipment, and integrating and supporting systems through-life.

STS Marine Solutions Ltd is an independent energy transfer company. They deliver first-class services globally in all areas of operation while upholding their core values, living up to the legacy of safety, professionalism, and efficiency.

Studio Navale Maritime & Technical Ltd. is a leading technical and consulting firm, which is well known for the credibility and reliability, within the international shipping community for more than two decades.

STX runs a ship chartering and hiring project that includes regular chartering, bulk chartering, etc. in a stable manner using its own ships. STX is actively developing its ship brokerage sales activities based on its broad domestic and overseas network and will be able to meet the needs of customers through the execution of projects for various kinds of ships.

STX Engine is a pioneer manufacturer in the global marine engine market. They provide all ship-related services such as design, manufacturing, sales, and after-sales service, and are responding to diversifying market demands and strict regulations based on their long experience and know-how.

Suardiaz Shipping Lines, which has owned and operated Ro-Ro ships in Western Europe since 1945, is currently focused on the sustainable, environmentally-friendly development of Motorways of the Sea, in line with the European Commission’s priorities, such as Digitalisation 4.0, that will define the new era of logistics.

SubCtech provides Maritime services and is based out of Germany.

The Submarine Delivery Agency (SDA) is an Executive Agency of the UK's Ministry of Defence (MOD). They were established in April 2018 to manage the procurement, in-service support and disposal of UK nuclear submarines, which are some of the most complex equipment in the world. They deliver capabilities to the Royal Navy that are essential to the Continuous at Sea Deterrent (CASD), which is the cornerstone of our national security.

Subsea 7 is a pioneer in the delivery of offshore projects and services for the evolving energy industry. They provide pipeline bundles, flowline systems, riser systems and much more to enhance pipe systems for the oil and gas sector.

Subsea Global Solutions has over 200 highly skilled commercial diver technicians positioned around the world. With 14 offices spread over five continents, the global footprint puts them in an unparalleled position for providing scheduled or unscheduled underwater maintenance and repair services to marine assets.

Ecospeed provides long-lasting, non-toxic protection for all ship hulls. It is a system that keeps a hull very smooth and free of fouling for the service life of the vessel requiring minimal repair and no replacement. Instead of using chemicals to try to kill and repel marine fouling organisms, Ecospeed uses a hard coating along with manual or mechanical removal of fouling at an early stage.

Subsea Connect is the partner in propulsion controls, automation and dynamic positioning. They support their customers with design, planning, implementation, commissioning stages and servicing. They develop and produce all products and components together with R&D and production facilities.

Subsea Survey Services Lts was formed in 2015 and has been growing as it served its clients ever since. Their services includes benthic surveys, pipeline and harbour surveys, survey equipment rental, and work boat hire.

Sue Stevens Media provides Maritime services and is based out of United Kingdom.

SULA BEDRIFTSTENESTE provides Maritime services and is based out of Norway.

Sun Coast Marine Surveying and Consulting provides professional marine surveys of power and sail vessels. Their surveys are very detailed informative reports and abide by the standards set by SAMS® and the American Boat and Yacht Council.