Burns & McDonnell Engineering Company, Inc

AECOM is a leading global infrastructure consulting firm committed to delivering innovative solutions that create opportunities for everyone. With a focus on technical excellence and sustainability, the company partners with clients across various markets including energy, transportation, and healthcare to transform communities and enhance the world's natural and social systems. Driven by a common purpose, AECOM harnesses digital innovation and expert knowledge to tackle modern infrastructure challenges. Their projects, such as the LA28 Olympic Games infrastructure and the design of Boston Logan International Airport Terminal E, showcase their commitment to sustainable legacies and transformative outcomes. Generated from the website

Established in 200, Spectrum Design offers full-service architectural and engineering services in Virginia. The company provides a range of architectural design, master planning and land planning services, along with comprehensive structural, civil, electrical and mechanical engineering. It specializes in the design of educational facilities, historical preservation of older buildings, museums and performing arts, residential and senior living communities, municipal and government buildings. Spectrum Design has won many awards, including Virginia School Boards Association, Distinguished Design Award, Virginia Downtown Development Association, Award of Merit for Preservation & Restoration and many more.

Mattern & Craig offers civil and sanitary engineering services to public, corporate and governmental agencies. It was founded in 1978 by J. Wayne Craig and E. K. Mattern. The firm s services include drainage improvement, culvert replacement, floodwall design, computer modeling, permitting and design of flood damage repairs. Its general water and wastewater management services include preliminary engineering, construction administration, well development design, flow monitoring, smoke testing and the preparation of operation and maintenance manuals. Mattern & Craig also provides deck investigation, cost estimation, bidding assistance, construction monitoring, specification preparation, load rating, bridge widening and repair, and deck and superstructure replacement services. Its clients include the Scott County Public Service Authority, Virginia Department of Transportation, University of North Carolina at Asheville, Tennessee Department of Transportation and Bristol Virginia Utilities. Mattern & Craig maintains an office in Roanoke, Va.