About Three Oaks Engineering

Our History

Three Oaks Engineering was founded in 2014 by consulting engineering professionals with a desire to create the kind of workplace where they wanted to work, with a focus on helping clients accomplish infrastructure projects with careful consideration of community and environmental needs. The company would be a sustainable partner in the community, while providing employees the flexibility to balance business and family responsibilities.

In 2015, The Catena Group joined Three Oaks, expanding the company’s offerings to include a broad range of environmental work, including specialized threatened and endangered species surveys, ecological/habitat evaluations, wetland and stream delineations, and environmental permitting.

Three Oaks has since grown to 50 staff across three offices – American Tobacco Campus in Durham (headquarters), Centennial Campus in Raleigh, North Carolina, and Columbia (West Cayce), South Carolina. This growth includes the addition of new services to better support our clients, including traffic engineering, hydraulic design, and roadway and multi-modal design.

With experience on a wide range of projects across the Southeast, coupled with a positive approach and commitment to each client, Three Oaks offers superior, cost-effective, and efficient services.  

The company has been recognized for its sustainability practices and is a disadvantaged business enterprise (DBE) with the North Carolina, South Carolina, and Virginia state departments of transportation.

Certifications

  • NCDOT disadvantaged business enterprise (DBE) & small professional services firm (SPSF)
  • SCDOT DBE
  • NC Department of Administration Historically Underutilized Business (HUB)
  • City of Durham Woman Small DBE & Small Local Business Enterprise (SLBE)
  • Virginia DBE and Small, Woman-owned, and Minority-owned (SWaM) Business woman/small certified
  • US Small Business Administration Economically Disadvantaged Women-Owned Small Business (EDWOSB) 

Our Core Values

The name Three Oaks Engineering and our symmetric logo convey balance and interconnectedness, and symbolize our three core values:

Sustainability
Work-Life Balance
Longevity

Logo for Three Oaks Engineering
three acorns with oak leaves

Sustainability

Our name honors the oak tree, a symbol of strength and renewal.  We assist clients in balancing infrastructure and development objectives with long-term community and environmental needs.  We also strive to be sustainable partners in our own communities.

group photo of Three Oaks staff at bicycle event

Work-Life Balance

We provide our employees with the flexibility to balance business and family responsibilities.  Our strong belief is that empowering highly-motivated employees is good for business.

I-526 bridge over Wando River Charleston

Longevity

We will succeed by focusing on delivering exceptional products and superior client service, while at the same time providing for the growth and well-being of our employees.   While profitability is vital, we recognize that our clients and employees are the cornerstones to our long-term success, and we are committed to providing both with what they need to flourish.

Three Oaks' Commitment to Diversity, Equity, & Inclusion (DEI)

DEI Commitment Statement

At Three Oaks Engineering, we believe creating a workplace that values and encourages diversity, equity, and inclusion (DEI) leads to a stronger team and better outcomes for our clients and is essential to achieving our mission of being a sustainable partner in our community.

We are dedicated to fostering an inclusive work environment where everyone feels welcomed, respected, and empowered to contribute their unique skills and perspectives. We value diversity in all its forms, including diversity of thought, experience, and background.

Here at Three Oaks, we think about diversity, equity, and inclusion as the following:

Diversity

We strive to develop a diverse talent pool of individuals and to acknowledge, embrace, and celebrate our differences.

Equity

We provide fair treatment, access, and opportunity for advancement to everyone.

Inclusion

We create a culture where everyone can feel respect, acceptance, and dignity.

Thus, we commit to take the following actions:

1. Measuring our employees’ sense of belonging on a regular basis through an engagement survey and report on our progress annually.

2. Educating our employees about how DEI benefits both the individual and the organization and how DEI improves the quality of work environment and company culture for all.

3. Continuing to support an environment of respect, acceptance, and dignity.

4. Identifying ways to improve inclusion within our organization and actively pursuing changes that will overcome obstacles.

5. Continuing to provide all employees with the flexibility they need to balance their work and family responsibilities, while also providing opportunities for career growth and development.

6. Sustainably partnering with our community in education and recruitment activities that work toward developing and recruiting a more diverse talent pipeline.

7. Exploring options for supplier diversity and commiting to using diverse suppliers when possible.

Recognition & Awards

Three Oaks Engineering ensures nondiscrimination in all programs and activities in accordance with Title VI of the Civil Rights Act of 1964.  If you need more information or special assistance for persons with disabilities or limited English proficiency, contact our office at 919.732.1300.

 
This link leads to the machine-readable files that are made available in response to the federal Transparency in Coverage Rule and includes negotiated service rates and out-of-network allowed amounts between health plans and healthcare providers. The machine readable files are formatted to allow researchers, regulators, and application developers to more easily access and analyze data. 
 
Employees may request a copy of Internal Revenue Service (IRS) form 1095-B for 2025 Affordable Care Act (ACA) reporting by contacting Human Resources.