Black & Veatch World Headquarters

Founded in 1898, Burns & McDonnell is a provider of engineering, architectural, environmental and consulting solutions. It has a staff of more than 2,900 employees. The company serves the needs of clients in the energy, transportation, health care, telecommunications, security, manufacturing, and water and wastewater industries. Burns & McDonnell offers planning, design and construction services for airports, refineries, power plants, military bases and water treatment facilities. The company provides energy procurement, on-site electric generation and assessment services. It also offers project management, building automation and financial analysis solutions. In addition, Burns & McDonnell provides stormwater management, flood control and ecosystem restoration services.

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.

Founded in 1970, Henderson Engineers is a full-service engineering design firm that serves clients throughout the United States. The company specializes in the design and development of mechanical, electrical and plumbing systems. Its division, Fire Dynamics, provides sprinkler design and code consultation services, as well as licensed fire alarms. Henderson Engineers serves the educational, entertainment, health care, hospitality, retail, recreational and real estate sectors. It also designs refrigeration, medical gas and humidification control systems. Additionally, the company provides building evaluation, code analysis, cost estimation, and design and build solutions. Henderson Engineers project portfolio includes the Lakeview Village Retirement Center, Heritage Housing, Swope Ridge Gardens and Pearl s Oyster Bar.