Three Oaks Engineering: Detailed Company Information & Corporate Profile
Summary
Three Oaks Engineering was founded in 2014 and is headquartered in Durham, NC, serving the Research Triangle DMA with a workforce of 100‑200 employees and annual revenue between $10M and $50M.
The firm specializes in Eco Management services that include National Environmental Policy Act (NEPA) analysis, environmental compliance, natural resource investigations, aquatic surveys, environmental permitting, and hydraulic engineering. In transportation, it delivers transit and traffic engineering solutions, roadway design, multimodal planning, and public engagement to support sustainable infrastructure projects.
Leadership is driven by President Suzanne Unger Young, with key experts such as Senior Transportation Planning Engineer Karen Taylor, Director of Traffic Engineering Mark Freeman, Hydraulic Engineer Hillary Millen, and Public Engagement Specialist Ana Santiago guiding project delivery.
| Three Oaks Engineering Website | threeoaksengineering.com |
| Social Links |    |
| Phone Number | 919-732-1300 |
| Industries | |
| Three Oaks Engineering Headquarters Address | 324 Blackwell Street, Durham, NC, 27701 US |
| Company Size | 100-200 employees |
| Specialities & Services | National Environmental Policy Act (NEPA) analysis, transportation planning, public engagement, environmental compliance, natural resource investigations, aquatic surveys, environmental permitting, transit, traffic engineering, freshwater mussels, NEPA, roadway design, hydraulic engineering |
| DMA Code | Research Triangle |
| Founded | 2014 |
| Estimated Annual Revenue | $10M - 50M |
| Operating Status | Independent Company |
| Updated: | 2026-09-26 |
Competitors
Name | Founded | Type | Employees |
|---|---|---|---|
| 1983 | Privately Held | 10-50 | |
| 2011 | - | 100-200 |
Estimated Website Traffic
The chart shows a growth in traffic to the threeoaksengineering.com website. In August, traffic increased to 198, compared to 188 in the previous month. The highest traffic in 2026 was recorded in March, reaching 665 visits.
Workforce Turnover
Number of employees switched from or switched to
Departmental sample breakdown
Length of Employment
Three Oaks Engineering's workforce includes employees across a wide range of tenure levels.
11% have been with the company for 1 to 2 years33% have been with the company for 5 to 7 years33% have been with the company for 8 to 10 years22% have been with the company for more than 11 years
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Three Oaks Engineering Corporate Information: FAQ
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