| Employer Name | Table | Industry |
| 4Creeks | 90 | Civil Engineering |
| Adolfson & Peterson Construction | 28 | Construction |
| AE Design | 88 | Design |
| AE Dynamics, LLC | 85 | Civil Engineering |
| Affiliated Engineers, Inc. | 35 | Engineering & Construction |
| Amentum | 58 | Government - Consulting |
| Ames Construction | 72 | Construction |
| Apex Engineers, Inc. | 40 | Scientific and Technical Consulting |
| ARCO | 5 | Construction |
| Ashley & Vance Engineering, Inc. | 52 | Civil Engineering |
| Atkins Realis | 13 | Civil Engineering |
| BDI | 89 | Civil Engineering |
| Benesch | 53 | Civil Engineering |
| Bolton & Menk, Inc. | 84 | Civil Engineering |
| BranchPattern | 31 | Design |
| Brinkman Construction, Inc. | 75 | Construction |
| Brinkmann Constructors | 1 | Construction |
| Bureau of Reclamation | 68 | Government - Local, State & Federal |
| Burns & McDonnell | 86 | Engineering & Construction |
| CAGE Civil Engineering | 10 | Civil Engineering |
| Cator, Ruma & Associates | 61 | Other Industries |
| CENSEO AV+Acoustics | 41 | Engineering & Construction |
| CMTA, Inc. | 11 | Engineering & Construction |
| Colorado Department of Transportation | 27 | Government - Local, State & Federal |
| Condon-Johnson & Associates, Inc. | 99 | Engineering & Construction |
| CTL | Thompson, Inc. | 81 | Civil Engineering |
| Cushing Terrell | 49 | Architecture and Planning |
| DCI Engineers | 91 | Civil Engineering |
| Deneuve Construction Services | G3 | Construction |
| Denver Water | 69 | Utilities and Renewable Energy |
| EXP U.S. Services, Inc. | 63 | Engineering & Construction |
| Farnsworth Group, Inc. | 42 | Design |
| FCI Constructors, Inc. | 37 | Construction |
| Felsburg Holt & Ullevig | 8 | Civil Engineering |
| FlatironDragados | 6 | Construction |
| Galloway & Company | 74 | Civil Engineering |
| Geoquest USA, Inc. | 18 | Civil Engineering |
| Geosyntec Consultants, Inc. | 95 | Scientific and Technical Consulting |
| GH Phipps Construction Companies | 33 | Construction |
| HDR, Inc. | 66 | Design |
| Henderson Engineers, Inc. | 103 | Engineering & Construction |
| Hensel Phelps | 24 | Construction |
| Holder Construction | 78 | Construction |
| Holland Partner Group | 79 | Real Estate |
| Hooper Corporation | G1 | Construction |
| Howell Construction | 44 | Construction |
| J.R. Harris & Company | 102 | Engineering & Construction |
| JE Dunn Construction | 21 | Construction |
| JVA Consulting Engineers | 15 | Civil Engineering |
| Kiewit | 12 | Construction |
| Kimley-Horn | 17 | Civil Engineering |
| Knight Piesold | 60 | Civil Engineering |
| Kraemer North America, LLC | 2 | Construction |
| Langan Engineering and Environmental Services | 51 | Civil Engineering |
| LJA Engineering | 57 | Civil Engineering |
| Manhard Consulting, Ltd. | 36 | Civil Engineering |
| Martin/Martin Consulting Engineers | 30 | Engineering & Construction |
| Maxwell Builders, Inc. | 92 | Construction |
| McKinstry | 82 | Construction |
| McNamara · Salvia | 38 | Engineering & Construction |
| ME Engineers | 29 | Engineering & Construction |
| Merrick & Company | 16 | Engineering & Construction |
| Metro Water Recovery | 23 | Utilities and Renewable Energy |
| Michaels Energy | 7 | Utilities and Renewable Energy |
| Millstone Weber, LLC | 64 | Construction |
| Mortenson | 50 | Construction |
| MTech Mechanical | 20 | Construction |
| Muller Engineering Company, Inc. | 62 | Civil Engineering |
| Myers & Sons Construction | 32 | Civil Engineering |
| NewFields Mining Design & Technical Services, LLC | 48 | Other Industries |
| PAE Consulting Engineers | 34 | Architecture and Planning |
| PCL Construction, Inc. | 65 | Construction |
| PG Arnold Construction | 77 | Construction |
| Professional Engineering Consultants | 45 | Engineering & Construction |
| Ramirez, Johnson, & Associates | 73 | Engineering & Construction |
| Redland | 19 | Design |
| Renewable Energy Systems | 56 | Utilities and Renewable Energy |
| RESPEC | 96 | Civil Engineering |
| Rick Engineering Company | 97 | Civil Engineering |
| RJH Consultants, Inc. | 43 | Civil Engineering |
| RockSol Consulting Group | 47 | Civil Engineering |
| Ryan Companies | 25 | Construction |
| S. A. Miro, Inc. | 98 | Civil Engineering |
| Saunders Construction, Inc. | 93 | Construction |
| Schnabel | 3 | Civil Engineering |
| Schnabel Engineering, Inc. | 4 | Civil Engineering |
| SGM | 14 | Civil Engineering |
| Shaw Construction | G4 | Construction |
| SK Design Group, Inc. | 94 | Civil Engineering |
| Specialized Engineering Solutions | 9 | Design |
| Swanson Rink, Inc. | G2 | Other Industries |
| Swinerton | 70 | Construction |
| Terracon | 39 | Civil Engineering |
| Town of Erie | 26 | Government - Local, State & Federal |
| Trimble, Inc. | 83 | Electronic & Computer Hardware |
| Turner Construction Company | 67 | Construction |
| U.S. Engineering | 54 | Engineering & Construction |
| W.E. O'Neil Construction Co. | 71 | Construction |
| Walter P Moore | 59 | Civil Engineering |
| Waner Construction Company, Inc. | 46 | Construction |
| The Weitz Company | 76 | Construction |
| Wells | 55 | Engineering & Construction |
| Westwood Professional Services | 80 | Civil Engineering |
| Whiting-Turner Contracting Company | 22 | Construction |
| WSP | 87 | Engineering & Construction |