STM (Société de transport de Montréal) is a public transportation company based in Canada, specifically in Montreal, Quebec. It is responsible for providing efficient transit services, primarily buses and rapid transit, within the city and surrounding areas. Established in 2002, STM was created through the merging of two transportation agencies – the Société de transport de la communauté urbaine de Montréal (STCUM) and the Réseau de transport métropolitain (RTM).

The headquarters of STM is located at 800 Rue de la Gauchetière Ouest in Montreal. The company offers a wide range of transit services to its customers. This includes managing and operating over 200 bus lines, which help transport thousands of passengers daily.

Additionally, STM is responsible for maintaining and expanding the metro system in Montreal, which currently has four lines stretching over 70 kilometers and serving 68 stations. On a global scale, STM operates solely within Canada, with a focus on serving the Montreal metropolitan area. The company does not have any significant subsidiaries, joint ventures, or partnerships.

In terms of market position, STM is a prominent player in the public transportation sector, with a strong presence in Montreal. It is the second-largest public transportation company in Canada and serves a population of over 4 million people. STM faces competition from other transportation agencies and private companies providing transit services in the region.

Over the years, STM has witnessed several notable events and achievements. In 2013, the company celebrated the 50th anniversary of its metro system, highlighting its importance in the city's transportation network. STM has also implemented various initiatives to improve sustainability, such as transitioning to hybrid and electric buses, as well as making efforts to enhance the accessibility of its services for individuals with disabilities.

As of the latest information available, STM continues to operate and provide essential transit services to the residents of Montreal. The company regularly updates its schedules, fares, and policies to adapt to the changing needs of its customers. It remains committed to delivering safe, reliable, and environmentally-friendly transportation options for the city's residents and visitors