Nationally recognized as a leader in civil and structural engineering solutions for over 20 years, Mainstay Engineering Group, Inc. builds the foundation that empowers high-tech and mission critical companies to soar. With over 4,000+ successful projects completed, our unwavering commitment to excellence, and our long-term strategic partnerships with life sciences, semiconductor, battery, data center and sustainable energy clients, we provide the essential support and expertise that ensures the best solution for your project. The award-winning company, with offices in Philadelphia, Pennsylvania and its corporate headquarters in Blue Bell, Pennsylvania, currently serves its partners and clients in 38 states across the U.S., and internationally.