Société des traversiers du Québec

The Société des traversiers du Québec (STQ) is a ferry company which has operated some intra-provincial ferry services in Quebec since 1971. It is a crown corporation owned by the Government of Quebec.

STQ operates the following services:

• Saint-Ignace-de-Loyola to Sorel-Tracy, crossing the St. Lawrence River with two ships, the Catherine-Legardeur and the Lucien-L.
• Lévis to Quebec City, crossing the St. Lawrence River with two twin vessels, Alphonse-Desjardins and Lomer-Gouin.
• Tadoussac to Baie-Sainte-Catherine, crossing the Saguenay River with three ships, the Armand-Imbeau and the Jos-Deschênes all year long and the Félix-Antoine-Savard in the summer.
• Matane to Baie-Comeau and Godbout, crossing the St. Lawrence River with one ship, the Saaremaa I, which replaced the F.-A.-Gauthier, when that ferry was taken out of service due to engine issues. The MV F.-A.-Gauthier had replaced Camille-Marcoux in 2015. The F.-A.-Gauthier is the first ferry in North American service powered by liquified natural gas.
• L'Isle-aux-Coudres to Les Éboulements, crossing the St. Lawrence River with two vessels, the Joseph-Savard and the Radisson.
• Chevery to Harrington Harbour, with Mécatina II.

The following services are operated in partnership with another company:

• Saint-Antoine-de-l'Isle-aux-Grues to Montmagny crossing the St. Lawrence River with one ship, the Grues-des-Îles
• Rivière-du-Loup to Saint-Siméon crossing the St. Lawrence River with one ship, the Trans-St-Laurent.
• Île-d'Entrée to Cap-aux-Meules connecting two islands of the Magdalen Islands with one vessel, the Ivan-Quinn, built in 2009.