| Abbreviation | Definition |
|---|---|
| MACCA | Manasota Air Conditioning Contractors Association |
| MAHTS | Mid-Atlantic Hardscaping Trade Show |
| MAI | Minimum Amount of Insurance |
| MARCA | Mid Atlantic Roofing Contractors Association |
| MCA | Mason Contractors Association |
| MCA | Mechanical Contractors Association |
| MCAM | Mechanical Contractors Association of Manitoba |
| MCAW | Mechanical Contractors Association of Windsor |
| MCAW | Mechanical Contractors Association of Wisconsin |
| MCCF | Montana Contractor Compensation Fund |
| MCCI | Mosquito Control Contractors Incorporated |
| MCDP | Model Contractor Development Program |
| MCEA | Member of the Construction Excellence Awards |
| MCI | Mechanical Contractors Inc |
| MCIP | Metropolitan Contractors Improvement Partnership |
| MCMC | Marine Corps Maintenance Contractor |
| MCOB | Medicare Contractor Oversight Board |
| MECA | Massachusetts Electrical Contractors Association |
| MGC | Micky General Contractors |
| MIR | Materials, Improper - Removal |