Sprague Terminal in Searsport, ME, is part of Sprague Energy, providing energy solutions and material handling services including fuel delivery, natural gas, and refined products to commercial, industrial, and government customers across the Northeast.
Spring Brook Marina & Yacht Sales is a family-owned and operated marine facility in Seneca, IL, specializing in power boats from 18' to 75', offering sales, service, storage, and rentals since 1961.
Spring Valley Boat Club in Granville, IL offers a sheltered harbor with 24-hour service, a gas dock, a diner, banquet facilities, and family-friendly amenities including eagle watching and a play area.
St. John University Parish is a Catholic parish serving the West Virginia University community in Morgantown, WV, providing spiritual services and community outreach.
St. Johns Boat Company in Jacksonville, FL offers comprehensive marine services including yacht and tug maintenance, electrical and mechanical work, aluminum and steel fabrication, blasting and painting, and long-term storage with a 150 metric ton boat hoist and a large blast house facility.
St. Augustine Marine Services is a marine and veteran-owned business offering boat service, repair, and sales, including innovative designs and installs.
St. Augustine Municipal Marina offers docking and marine services in St. Augustine, Florida, providing facilities for recreational and commercial vessels.
St. John Freight Systems Ltd is a Singapore-based company specializing in freight and logistics services, offering professional and trustworthy partnerships in the maritime industry.
St. Petersburg Ship Chandler Ltd. is one of the oldest and largest full service general ship suppliers in St. Petersburg and Ust-Luga, Russia, providing quality ship chandler services with a focus on customer satisfaction and timely delivery.
Kingstown, Saint Vincent And The GrenadinesUpdated Jul 2003
St. Vincent Port Authority manages and operates the port facilities in Kingstown, Saint Vincent and the Grenadines, providing maritime services and infrastructure support.
Stage Harbor Marine is a family-run marina in Chatham, MA, offering new and pre-owned boat sales, marine services, and repairs, including Mercury and Yamaha service dealership.
Stallion Offshore Quarters, Inc. provides workforce housing and integrated jobsite equipment rental solutions, specializing in offshore living quarters, mobile offices, and support services for the oil & gas and maritime industries.
Sheffield, Yorkshire, United KingdomUpdated May 2026
SPR is a subsidiary of Piston Rings UK Ltd. and offers the most comprehensive range of piston rings for marine and industrial applications.
Chrome plated, copper plated or plain cast iron - whatever rings you need SPR can supply them. SPR is unique in being able to supply such a wide range of
piston rings. We ensure that our rigorous quality standards are met at all stages of production and delivery.
We have the flexibility to meet the ever changing needs of our worldwide customer base. Our dedication to continuous improvement and development of our product range results in a ring which offers reliability and performance in the most arduous operating conditions.
A Better Service : SPR fully appreciates that the longer an engine remains inactive during overhaul or repair, the greater the impact on revenue. Rapid sourcing of quality spares reduces expensive down time. Same day despatch of stock items from SPR's extensive warehouse on orders received before 15.00 hrs (GMT) is standard. After this time, despatch will normally take place within 24 hours. For replacement rings, engineers continually rely on SPR to deliver - wherever they are in the world.