Colman Engineering, PLC: Detailed Company Information & Corporate Profile
Summary
Colman Engineering, PLC is a specialized building engineering firm based in Harrisonburg, Virginia that delivers comprehensive site civil, environmental, water resources, stormwater management, pollution prevention planning, and land development services.
Founded in 2010, the independent company has grown to an employee base of 10‑50 professionals and reports annual revenues between $1 million and $10 million. Its leadership team includes Owner and President Gil Colman, Director of Operations Nell Marie Colman, civil engineers Gary Spencer and Samuel Irwin, project manager Jonathan Lantz, and administrative assistant Tiffany Knupp.
Operating in the Harrisonburg Metropolitan Area (DMA), Colman Engineering serves clients across the building engineering sector with expertise supported by its SIC 8742 classification.
| Colman Engineering, PLC Website | colmanengineering.com |
| Social Links |  |
| Phone Number | 540-246-3712 |
| Industries | |
| Colman Engineering, PLC Headquarters Address | 1123 S High St, Harrisonburg, Virginia, 22801 US |
| Company Size | 10-50 employees |
| Specialities & Services | Site Civil Engineering, Environmental Engineering, Water Resources Engineering, Stormwater Management, Pollution Prevention Planning, Land Development |
| SIC Code | 8742 |
| NAICS Code | 541611 Administrative Management and General Management Consulting Services, 541612 Human Resources Consulting Services, 541613 Marketing Consulting Services, 541614 Process, Physical Distribution, and Logistics Consulting Services, 561312 Executive Search Services |
| DMA Code | Harrisonburg Metropolitan Area |
| Founded | 2010 |
| Estimated Annual Revenue | $1 - 10M |
| Operating Status | Independent Company |
| Updated: | 2026-10-29 |
Workforce Turnover
Number of employees switched from or switched to
Departmental sample breakdown
Length of Employment
Colman Engineering, PLC's workforce includes employees across a wide range of tenure levels.
20% have been with the company for 1 to 2 years20% have been with the company for 3 to 4 years20% have been with the company for 5 to 7 years20% have been with the company for 8 to 10 years20% have been with the company for more than 11 years
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Colman Engineering, PLC Corporate Information: FAQ
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