Lochner

Lochner is a prominent infrastructure services provider founded in 1944 and headquartered in Chicago, Illinois. With a team of approximately 590 professionals, the company specializes in aviation, surface transportation, and water projects, generating an annual revenue of $77 million as of 2025. Under the leadership of CEO Terry A. Ruhl, Lochner has expanded its services and geographic reach through strategic acquisitions. The company offers a range of services, including transportation engineering, aviation services, water infrastructure, intelligent transportation systems, and grant writing and management. Lochner integrates specialized firms like KOA Corporation and Armstrong Consultants to enhance its capabilities. It serves a diverse clientele, including transportation authorities, over 130 airports, and various municipalities. Recently, Lochner has refreshed its brand to celebrate 80 years in business and opened a new office in Charlotte, North Carolina, to strengthen its regional presence. The company is recognized for its collaborative culture and commitment to community engagement.