Anchor Handling Tug Supply (AHTS) vessels are mainly built to handle anchors for oil rigs, tow them to location, and use them to secure the rigs in place. AHTS vessels sometimes also serve as Emergency Response and Rescue Vessels (ERRVs) and as supply transports.
HMCS Fredericton is a Halifax-class frigate that has served in the Canadian Forces since 1994. Fredericton is the eighth ship in her class which is based on the Canadian Patrol Frigate Project. She is the second vessel to carry the name. Fredericton serves on MARLANT missions protecting Canada's sovereignty in the Atlantic Ocean and enforcing Canadian laws in its territorial sea and Exclusive Economic Zone. Fredericton has also been deployed on missions throughout the Atlantic and to the Indian Ocean; specifically the Persian Gulf and Arabian Sea on anti-terrorism operations. Fredericton has also participated in several NATO missions, patrolling the Atlantic Ocean as part of Standing Naval Force Atlantic (STANAVFORLANT) and its successor Standing NATO Response Force Maritime Group 1 (SNMG1). The frigate is assigned to Maritime Forces Atlantic (MARLANT) and is homeported at CFB Halifax.
Seaspan ULC provides marine-related services to the Pacific Northwest. Within the Group are three shipyards, an intermodal ferry and car float business, along with a tug and barge transportation company that serves both domestic and international markets. Seaspan, is part of the Washington Companies that are owned by Dennis Washington. Kyle Washington, is the Executive Chairman of Seaspan, who has become a Canadian citizen.
USNS Salvor (T-ARS-52) is a Safeguard-class rescue and salvage ship, the second United States Navy ship of that name.
USNS Catawba is a Powhatan-class tugboat operated by the Military Sealift Command for the United States Navy. She is currently based in Manama, Bahrain. She was launched in 1979 and is the last ship of her class still in service. In December 2020, the Navy announced its intention to retire Catawba during fiscal year 2023.
SS Foundation Franklin was a seagoing salvage tug built for the Royal Navy as HMS Frisky in 1918. In 1924, the tugboat was sold and renamed Gustavo Ipland before being acquired in 1930 by Foundation Maritime and renamed Foundation Franklin. The tugboat became famous for many daring salvage operations and rescues between 1930 and 1949. Her many rescues and salvage triumphs were celebrated in Farley Mowat's book The Grey Seas Under. In 1948, the ship was damaged in a hurricane and not considered repairable. The tug was broken up for scrap in 1949 at Halifax, Nova Scotia.
USNS Mohawk (T-ATF-170) was a United States Navy Powhatan-class tugboat operated by the Military Sealift Command from 1980 to 2005.
The Halifax Shipyard Limited is a Canadian shipbuilding company located in Halifax, Nova Scotia.
CCGS Captain Molly Kool is a Canadian Coast Guard converted medium class icebreaker. She was originally built as an icebreaking anchor handling tug Vidar Viking for Trans Viking Icebreaking & Offshore in 2001. The vessel was acquired by the Canadian Coast Guard in August 2018 and was commissioned in May of the next year after refit.
Cougar Helicopters Flight 91 was a scheduled flight of a Cougar Sikorsky S-92A which ditched on 12 March 2009 en route to the SeaRose FPSO in the White Rose oil field and Hibernia Platform in the Hibernia oilfield off the coast of Newfoundland 55 kilometres (34 mi) east-southeast of St. John's, Newfoundland. Of the eighteen aboard, only one survived.
USNS Navajo (T-ATF-169) was a United States Navy Powhatan-class tugboat operated by the Military Sealift Command which was in service from 1980 to 2016. She spent the bulk of her career in the Pacific and is currently moored in Pearl Harbor, awaiting disposal.
USNS Sioux (T-ATF-171) was a United States Navy Powhatan-class tugboat operated by the Military Sealift Command (MSC). She was in service from 1981 to 2021 and spent the bulk of this time supporting the Pacific Fleet.
Aiviq is an American icebreaking anchor handling tug supply vessel (AHTS) owned by Edison Chouest Offshore (ECO). The $200 million vessel was built in 2012 by North American Shipbuilding Company in Larose, Louisiana and LaShip in Houma, Louisiana. She was initially chartered by Royal Dutch Shell to support oil exploration and drilling in the Chukchi Sea off Alaska where the primary task of the vessel was towing and laying anchors for drilling rigs, and oil spill response.
Atlantic Oak is a tug boat based out of Halifax, Nova Scotia. She is owned by Atlantic Towing Limited, which is owned by Irving Shipbuilding. Atlantic Oak was built by East Isle Shipyard Ltd. in Prince Edward Island and was commissioned in 2004. One of her duties in the Harbour is to assist in launches at the Halifax Shipyard. She also guides many tankers and bulk freighters along with other large ships into port.
Atlantic Spruce is a fire fighting tug with a Robert Allan Design tug made from steel, equipped with fire fighting (FIFI-1) The original Atlantic Spruce was the first tug of her kind built in Georgetown PEI. Since her launch, there have been many tugs built with the same design and Atlantic Spruce continues the Irving-owned Atlantic Towing tradition of naming their tugs after trees; Atlantic Fir, Atlantic Hemlock, Atlantic Cedar, Atlantic Oak, and Atlantic Willow.
Point Chebucto is a harbour tug that was built at the Halifax Shipyard in Halifax, Nova Scotia, Canada in 1992. She is one of very few harbour tugs that were built at the Halifax Shipyards. She has been aiding ships in and out of Halifax Harbour and later Port Hawkesbury, Nova Scotia since she was registered in January 1993. The tug was built for Eastern Canada Towing Limited, a company that has been around for over 60 years. The tug is named after the point at Chebucto Head, continuing the tradition of Eastern Canada Towing of naming its tugs after points. Eastern Canada Towing took over Foundation Maritime's work in the field of Harbour, Coastal and Deep-Sea tow and salvage. The firm owns and operate a fleet of modern tugs ranging from 1250 HP - 5400 HP. Most tugs are ice strengthened, with several having Ice Class 1 certification. Their head office is also in Halifax. Eastern Canada Towing was purchased in 2007 by Svitzer, a tug boat division of Maersk.
Erg was a vessel built and owned by Halifax Steamship Ltd. in 1915. She was used to ferry workers across the harbour to vessels under repair during the Second World War. Erg was sunk in the Halifax Harbour three times and is currently located in the Bedford Basin.
CCGS Judy LaMarsh is a Canadian Coast Guard light icebreaker. Built in 2010 as a shallow-draught icebreaking tug Mangystau-2 for the Caspian Sea oil fields, the vessel was acquired by Canada as an interim solution while the existing fleet undergoes service life extension and maintenance.
Horizon Maritime Services Ltd is a company which provides vessels and offshore services for arctic duty in Canada and Norway. It is based in St. John's, Newfoundland and Labrador, and its joint ventures include partnerships with two First Nations, the Miawpukek and the Heiltsuk ; in addition, Horizon operates joint ventures with Kotug as Kotug Canada and with Bourbon as Bourbon Horizon.
Canada 