Your Engineering Partner For Tomorrow's Innovations

At Mainstay Engineering Group, we build the foundation for your innovation. We are your strategic partner for groundbreaking civil and structural engineering solutions for complex Science and Technology, and other mission-critical environments. We understand that your success hinges on innovative, reliable solutions, and for five decades, our deep technical expertise has been the cornerstone of our reputation, built on unwavering excellence, rapid responsiveness, and delivering flexible, long-term strategies that conquer the toughest project demands. 

What makes us different? Our unwavering commitment to solving your toughest engineering challenges across a vast array of industries. We bring unparalleled expertise to all Science & Technology sectors, including:  

• Life Sciences (Biotech & Pharmaceutical)

• Industrial & Manufacturing

• Warehouse & Distribution

• Healthcare Facilities

• Data Centers & Semiconductors

• Renewable Energy Projects

• Educational Institutions

• Oil & Gas

• And other critical infrastructure

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When precision, reliability, five decades of proven experience, and our clients' confidence in our ability to deliver when it matters most, trust Mainstay Engineering Group. ​