| SMCC | Science Media Centre of Canada 
| Others |
| SMCC | Scottish Micro Car Club
| Others |
| SMCC | Seven Mountains Conservation Corp
| Others |
| SMCC | Shadow Mountain Community Church
| Others |
| SMCC | Show Me Corvair Club
| Others |
| SMCC | Shuttle Mission Control Center
| Others |
| SMCC | Sierra Madre Congregational Church
| Others |
| SMCC | Ski Mountaineering Competition Canada
| Others |
| SMCC | South Mountain Community College
| Others |
| SMCC | Southern Maine Community College
| Others |
| SMCC | Southern Maryland Camaro Club
| Others |
| SMCC | Southern Maryland Corvette Club
| Others |
| SMCC | Southern Modified Car Club
| Others |
| SMCC | Southwest Mississippi Community College
| Others |
| SMCC | Sports Motor Car Club
| Others |
| SMCC | St Mary Catholic Central
| Others |
| SMCC | St Mary's Canossian College
| Others |
| SMCC | St Mary's Cathedral College,
| Others |
| SMCC | Standards Management Coordinating Committee
| Others |
| SMCC | State Movement Control Center
| Others |
| SMCC | Stepper Motor Cruise Control
| Others |
| SMCC | Stout Motor Car Company
| Others |
| SMCC | Strategic Mobile Command Center
| Others |
| SMCC | Stutz Motor Car Company
| Others |
| SMCC | Sun Microsystems Computer Company
| Others |
| SMCC | Suncrest Motor Coach Club
| Others |
| SMCC | Symbolic Motor Car Company
| Others |
| SMCC | Syro Malabar Catholic Congress
| Others |
| SMCC | Syro-Malabar Catholic Church
| Others |
| SMCC | Syro-Malankara Catholic Church
| Others |
| SMCC | System Monitoring and Coordinating Center
| Others |