| Abbreviation | Definition |
|---|---|
| MCS | Marketing of Consulting Services |
| MCSI | Mining Consulting Services Inc |
| MECO | Management Entrepreneurship Consulting and Operations |
| MFCG | Marin Financial Consulting Group |
| MFCS | Medicaid Finance and Consulting Services |
| MFLC | Military and Family Life Consultant |
| MGCG | Monet Global Consulting Group |
| MIEG | Mastrangelo International Engineering Group |
| MJT | Maintenance Job Ticket |
| MLCP | Michael Lock Consultant Psychologists |
| MMAS | Mothi Matthew Ashraf's Site |
| MMCS | Management and Medical Consulting Services |
| MNCE | Milanovic Neale Consulting Engineers |
| MRAC | Martin Research and Consulting |
| MRCE | Mueser Rutledge Consulting Engineers |
| MRFR | Marker Research Future Reports |
| MTC | Management Technology Consulting |
| MTCE | Metallurgical Testing and Consulting Engineers |
| MW | Minds at Work |
| MYBC | Marlin Yard Business Consulting |