
OUR VALUES
Our founding principles remain at the core of our services and in our work environment.
It's how we treat one another.
It’s how we do business.

Professionalism
Integrity
Precision
Loyalty
OUR STEADFAST FOCUS
Preparing ourselves to meet the emerging needs among our clients and within society
Remaining well-versed in changes to legislation, regulations and permitting requirements
Giving back to our community and encouraging that same mindset among our team
OUR BELIEF IN EDUCATION
We believe that education - at all levels - provides growth opportunities not only personally and professionally, but also collectively as a society.
This philosophy has lead us to collaborate with our partners to provide informative workshops and trainings for colleagues and professionals, as well as an Engineering Explorer Post program for high-school aged students.


Terry, Sr. offers guidance to the Brownsville Students in Action for various projects. He was honored to cut the ribbon at the opening of the Teen Space at the Brownsville Free Public Library.

Terry, Sr. discussed the process of completing a culvert replacement with the Township Supervisors during their annual meeting.

McMillen Engineering has hosted several professional development workshops for local professionals. Topics for the series has included ALTA/NSPS Land Title Surveys, National Electrical Code Changes, and Building Code Updates.

Terry, Sr. offers guidance to the Brownsville Students in Action for various projects. He was honored to cut the ribbon at the opening of the Teen Space at the Brownsville Free Public Library.

COMPANY HISTORY
Terry E. McMillen, Sr. founded McMillen Engineering Inc. in 1977. It was a rather humble beginning as Terry and his wife, Denise, began by converting a portion of the family room in their home into office space. The early years required long days, a lot of work and dedication as the company grew steadily.
They soon realized the need for an office outside of their home, and moved into their first ‘official’ office in Hopwood, Pennsylvania. They stayed at this location for a few years, then moved to the Hopwood Center for more office space. The company’s continual growth led to the construction of a new office building in the Fayette County Business Park on Wayland Smith Drive, just west of Uniontown. It was their 25th year in business and it was a great way to begin the second twenty-five years.
Since 1977, McMillen Engineering Inc. has provided a wide spectrum of civil engineering, but the consistent focus from the first project at Todd Farm until today has been land development. The initial projects were a variety of residential developments followed by commercial/light industrial projects and then large scale retail developments. As the needs and opportunities of society changed, they expanded services to include infrastructure (water and sewer), design of sewage treatment plants, sewerage collection and water distribution systems, structural design, environmental engineering, and traffic engineering.


"THE SUM OF OUR CONTRIBUTIONS MUST EXCEEED OUR REWARDS."
- Terry McMillen, Sr.