Garg Consulting Services, Inc.

Garg Consulting Services (GCS) is a multi-disciplinary engineering firm advancing the future of transportation infrastructure across the Northeast. Founded in 1990, GCS has grown to a team of 100+ engineers, designers, inspectors, and technical specialists headquartered in Rocky Hill, CT, with a regional office in Princeton, NJ. We proudly support federal and state agencies throughout CT, NY, NJ, RI, MA, and PA, and maintain MBE / SBE certifications with numerous transportation authorities. GCS is nationally recognized for its expertise in rail and transit engineering, including traction power, catenary, signals and communications, track design, rolling stock engineering, and systems integration for major transit networks. Our teams bring decades of rail experience to some of the country’s most complex and high-profile transportation programs. Beyond rail and transit, our technical capabilities span a wide range of engineering disciplines, including Civil & Structural Engineering, MEP Engineering, Bridge Inspection, Construction Engineering & Inspection (CEI), and Survey. At GCS, our culture is built on collaboration, continuous learning, and technical excellence. We offer opportunities to work alongside industry-leading experts across multiple disciplines while contributing to impactful infrastructure improvements throughout the region. From early-career engineers to seasoned specialists, our team members pursue meaningful work supported by mentorship, professional development, and a people-first environment. Whether you're seeking a trusted engineering partner or exploring your next career move, GCS is committed to delivering excellence—and shaping the next generation of transportation infrastructure. Follow us for project updates, company news, and career opportunities.