On October 30, 2020, LTK Engineering Services (LTK) merged with Hatch to become Hatch LTK. Hatch is a privately-held, multidi ... sciplinary professional services firm delivering a comprehensive array of technical and strategic services to the infrastructure, energy and mining, and metals sectors. Hatch LTK is now part of Hatch’s Infrastructure group with main offices in Ambler, PA and offices in 27 other cities across the US. Founded in 1921, LTK provided superior service to clients for almost a century. Hatch LTK will build upon LTK’s strong legacy of technical excellence and corporate commitment to the rail and transit industries to create positive change for the next century. Hatch LTK will continue to provide the same high levels of staff expertise and work quality in all areas of practice formerly served by LTK and some new ones. From the initial project phases — conceptual engineering, project alternatives, right-of-way, and environmental mitigation — through design, construction, and commissioning, we will continue to provide clients with vital support. read more