An Engineering News-Record Top design firm, RETTEW has a history of commitment to the communities it serves. Grounded in integrity, RETTEW provides expert engineering and consulting solutions to local and national clients in the energy, transportation, government, and industrial markets. Since 1969, RETTEW has grown from a single-person firm to close to 400 dedicated professionals. Offering more than 100 different services, our team is known for responsiveness, efficiency, and maximizing results. We have a reputation for controlling costs and accelerating schedules on projects requiring engineering designs, regulatory expertise, site investigations, safety consulting, and construction oversight.