| 925.97 Water Supply, Treatment, and Distribution/Engineering |
| 968.47 Inspection Services, Construction Type |
| 989.14 Asphalt Sampling and Inspection Services |
| 989.75 Soil Sampling and Preparation Services |
| 992.34 Concrete Testing Services |
| 992.36 Core Sample (Not Concrete) Testing Services |
| 992.55 Miscellaneous Testing and Calibration Services |
| 907.35 Designing Services |
| 907.38 Drafting Services |
| 907.42 Geotechnical - Soils |
| 907.75 Site Assessment and Site Field Observation |
| 907.83 Testing Services |
| 909.03 Administration of Contracts: Summary of Work, Quality Control, Project Closeout, etc. |
| 918.32 Consulting Services (Not Otherwise Classified) |
| 918.42 Engineering Consulting |
| 918.88 Quality Assurance/Control Consulting |
| 925.17 Civil Engineering |
| 925.28 Drainage Engineering |
| 925.33 Engineer Services, Professional |
| 925.36 Engineering Services (Not Otherwise Classified) |
| 925.38 Field Engineering |
| 925.42 Foundation Engineering |
| 925.44 General Construction: Management, Scheduling, Cost Estimation - Engineering |
| 925.46 Geotechnical Engineering |
| 925.49 Highways; Streets; Airport Pay-Parking Lots - Engineering |
| 925.55 Inspecting, General/Engineering |
| 925.56 Inspecting, Structural/Engineering |
| 925.61 Land Development and Planning/Engineering |
| 925.70 Municipal Engineering |
| 925.93 Traffic and Transportation Engineering |