New AcquisitionsExpanded Horizons.
One MacKay.

Backed by a deep collection of successful projects, meaningful work, and lasting relationships, MacKay is growing with enthusiasm and intention. We are expanding our national reach through partnerships with firms who share our belief that great companies are built on people, purpose, and a genuine commitment to clients and communities. Each new firm we welcome into the MacKay team introduces fresh market sector fluency, specialized expertise, and proven project experience that strengthens our services and honors our values.

Lowe Engineers Civil Engineering & Surveying Excellence.

Lowe Engineers is a trusted engineering and surveying firm founded in 1957 and headquartered in Atlanta, Georgia. The firm serves public and private sector clients across the Southeast. With decades of experience, Lowe has built a reputation for technical excellence, responsive service, and lasting client relationships.

Lowe provides a full range of professional services, including civil engineering, transportation engineering, surveying, geospatial services, highway and bridge design, utility systems analysis, hydrology and hydraulics, water and wastewater systems design, planning, aerial mapping, and photogrammetry.

In July 2026, Lowe Engineers joined MacKay, expanding the firm’s presence in the Southeast and strengthening its multidisciplinary capabilities. Together, Lowe and MacKay combine deep regional expertise with the resources of a growing national infrastructure and environmental services firm, delivering practical, innovative solutions that strengthen communities and improve infrastructure across the United States.

Visit the Lowe Engineers Website Contact Lowe Engineers

Pioneer Technical Services is now part of Mackay

Pioneer Technical Services Cutting-Edge Engineering & Environmental Services.

Founded in Montana, Pioneer Technical Services has built a strong reputation for delivering engineering, environmental, geotechnical, and construction services throughout the region. In addition to its headquarters in Butte, the firm operates offices in Billings, Bozeman, Helena, Libby, and Anaconda, Montana, and Kellogg, Idaho.

Pioneer’s team of experts pride themselves on a commitment to excellence and customer satisfaction. They work closely with clients to understand the unique needs of each project, providing tailored solutions that meet specific requirements. The Pioneer team is dedicated to delivering exceptional results that exceed expectations and drive business growth.

By joining together, MacKay and Pioneer will offer clients expanded multidisciplinary capabilities backed by greater technical resources, all delivered with the personalized service both firms are known for. This partnership establishes MacKay’s new Intermountain Region, expanding the firm’s footprint across Montana and Idaho while strengthening its ability to serve clients with enhanced technical expertise and local knowledge.

Visit the Pioneer Technical Services Website Contact Pioneer Technical Services

Exciting Things are Happening at MacKay.

Positive impact happens when the right people come together. We are welcoming new firms, new talent, and new expertise to MacKay, with each opportunity thoughtfully considered, carefully chosen, and grounded in the defining characteristics of how we work and who we are. Discover our expanding footprint and take a look at what lies ahead.

Our Footprint Growing with Purpose