Sociedade de Transportes Colectivos de Macau (TCM) is one of the bus operators in Macau (Transmac being the other).
The company began as ferry operator in the 1950s, but did not enter bus operations until 1974 when a bridge connecting the mainland with Cotai and Taipa (Ponte Governador Nobre de Carvalho) was finished.
In late 2009, TCM was disqualified from a tender to operate public bus services from late 2010. In reason of the company was "four minutes late" to submit its tender proposal on the deadline of the submission date. After several months of opposition, TCM was awarded one of five batches of routes for operation since August 2011.