Terracon Consultants Inc

ATC Associates is a provider of environmental consultation, industrial hygiene and geotechnical engineering services. The company offers construction materials testing and special inspection solutions. It serves the petroleum, real estate, retail, manufacturing, financial service, telecommunications, educational, government and hospitality sectors. ATC Associates maintains more than 60 locations throughout the United States. The company s clients include Chevron Products Company, AT&T, Rosser International and Turner Properties. It also provides groundwater control and pavement design services. The company offers mine reclamation and stormwater planning solutions. Founded in 1982, ATC Associates manages a staff of more than 1,700 employees. It additionally provides assistance with bidding and contract award processes.

Founded in 1991, AI Engineers is a full-service consulting engineering firm serving both private and public sector clients. Its transportation services include planning, traffic engineering studies, railroad engineering and airport master plan and offers bridge rehabilitation, highway and railroad structures planning, bridge safety inspections and evaluations, seismic analysis and design and scour evaluation. The company provides highway and site design, streetscape improvements, water and wastewater design and environmental assessments. It also offers construction management, resident engineering and inspection, contract administration, material testing, surveying and land development, building and facility design, utility engineering and on-call services. AI Engineers is headquartered in Middletown, Conn., and has branch offices in New York City and Mansfield, Mass.