At Mainstay Engineering, we are the bedrock of tech innovation.

Nationally recognized as a leader in civil and structural engineering services for over 20 years, we build the foundation that empowers high-tech and mission critical companies to soar. With over 4,000+ successful projects completed, and our unwavering commitment to precision, quality and excellence, and our long-term strategic partnerships with life sciences, semi-conductor, battery, data center and clean energy clients, we provide the essential support and expertise that ensures the best solution for your project.

Our design professionals are licensed to perform engineering services in the U.S., but our reach extends beyond borders, having performed consulting services internationally. 

Mainstay began with a focus on servicing Life Sciences, and has grown to a team of 55 experienced professionals and Subject Matter Experts (SMEs), servicing our partners and clients. Today, 85% of our portfolio is comprised of Mission Critical projects, a testament to the trust our clients place in us for their most important projects. 

Trust Mainstay to be your cornerstone.

Data Center

Engineering

Mainstay Engineering Group

Teams at Mainstay Engineering Group

Structural Engineering Team

Leadership Team