| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | Magnum Enterprises | General contractor | 20 |
| 2 | Mammoth Electric | Electrical contractor | 3 |
| 3 | Manolito Granda Ocampo | Electrical engineering | 1 |
| 4 | Marcus P South & Assocs | General contractor | 2 |
| 5 | Marina Landscaping | Landscape building | 0 |
| 6 | Mason West Inc | 0 | |
| 7 | Matrix Service Inc | Client | 0 |
| 8 | Medallion Contractors | General contractor | 0 |
| 9 | Merlin J. Barth | Architect | 1 |
| 10 | Michael Frazier Architects | Architect | 1 |
| 11 | Model Glass Inc. | 0 | |
| 12 | Montana Testing & Geotechnical Inc | 1 | |
| 13 | Mullen & Associates, Inc. | Electrical engineering | 5 |