Since our incorporation in 2003, SI Engineering, P.C. (SIE) has built a strong reputation for delivering high-quality engineering services across the New York City metropolitan area & New Jersey. We specialize in civil, structural, electrical/lighting, and transportation engineering; bridge and facility structural inspection; construction management and inspection; and project and program management. SIE’s portfolio spans projects from local community improvements to large, multi-billion-dollar infrastructure initiatives. With expertise across water, aviation, transit, bridges, roadway projects, and more, we have contributed to some of the region’s most signature and noteworthy infrastructure developments. Our team is known for its responsiveness, flexibility, and commitment to safety and quality at every project stage. We work with a wide range of clients, consistently exceeding expectations, enhancing the communities we serve, and ensuring our clients are satisfied by delivering project goals in a timely, safe, and cost-effective manner.

As a certified M/WBE firm, we offer a diverse team of project managers, engineers, inspectors, and construction professionals who consistently provide innovative solutions and proactive management. SIE’s senior leadership holds numerous positions within respected organizations, including ACEC New York, CMAA Metro NY/NJ, and DBIA Metro NYC. Our staff undergoes continuous technical and managerial training to ensure excellence in solving complex design and construction challenges. Our work has earned recognition from clients and industry organizations such as ACEC, CMAA, and ENR, underscoring our commitment to excellence, innovation, and client success.