Traffic Message Channel — a technology for delivering traffic and travel information to drivers

Tennis Masters Cup

Turtle Mountain Café at the University of Minnesota, Morris.

Thinking Machines Corporation, a now-defunct supercomputer company

thousand million cubic feet ("TMC feet" also used)

Transportation Manufacturing Corporation - a former bus manufacturer.

The Multiple Choice - an international trailer axle brand under the Trumas group

Transportation Materiel Command, a unit of the United States Army until 1962

A shortened form of WTMC, an abbreviation of Washtenaw Technical Middle College

Tamil Maanila Congress (a political party in Tamil Nadu)

Télé Monte Carlo (part of Pathé)

Texas Medical Center (Medical institutions)

The Legend of Zelda: The Minish Cap, a Game Boy Advance entry in Nintendo's The Legend of Zelda series.

The Movie Channel (cable television network)

thousand million cubic metres (e.g. in irrigation)

Thurgood Marshall College, a college within UC San Diego

Timaru Mongrel Club, Timaru, South Canterbury, New Zealand

Total Music Communication - a Japanese Music Collaboration between Rip Slyme, Dragon Ash and others.

Toyota Motor Corporation (Automobile manufacturing)