Wilson & Co Inc Engineers & Architects

Founded in 1956, Olsson Associates is an employee-owned engineering and consulting firm. With a location in Overland Park, Kan., it maintains more than 15 offices throughout the United States. The firm provides construction administration, planning, design, inspection, automation and technology, land development and traffic engineering services. Olsson Associates offers landscape architecture, urban and water resource planning, construction management, wastewater treatment and geotechnical services. Its environmental services include geographic information systems, wetland mitigation, and oil and gas exploration. The firm also provides power distribution, roadway lighting and community consulting services. Olsson Associates serves the retail, health care, industrial, institutional, recreational, residential and government sectors. It has a staff of more than 650 employees.

Operational for more than 100 years, HNTB Companies is an employee-owned infrastructure firm that serves the federal, state, municipal and private clients. The company offers transportation, engineering, planning and construction management service through HNTB Corporation. It employs design professionals who provide buildings services through HNTB Architecture. The company has a staff of over 4,000 employees in nearly 60 offices throughout the U.S. It offers environmental planning, intelligent transportation systems and management consulting services. The company provides program management, urban design, and planning and structural engineering services. HNTB Companies additionally offers disaster recovery and historic preservation services for highway, toll road, bridge, airport, rail and water projects.

Family owned and operated since 1961