Carollo Engineers

HDR is an integrated architectural, engineering and consulting firm that provides a variety of related services to clients in the civic, water and wastewater, power, solid waste, science and technology, health care and transportation markets. Its subsidiaries include HDR Engineering and HDR Architecture. The company s services include architectural design, asset management, construction, construction administration and management, design engineering, interior design, landscape architecture, master planning, pollution prevention, power delivery, programming, security, sustainable design and transportation planning. It was founded by H.H. Henningson in 1917 and has headquarters in Omaha, Neb. The company s network of more than 100 offices has worked on projects in all 50 states and more than 60 countries. HDR has an office location in Folsom, Calif.

Founded in 1947, Brown and Caldwell is a full-service environmental engineering and consulting company. It operates more than 40 offices throughout the United States. The company provides a range of environmental services, such as material recovery, stormwater permitting and restoration, and waste and water management. Brown and Caldwell offers information technology, renovation, modeling, design and construction management services. It also provides several business consultation services that include financial planning, asset management and infrastructure security. The company maintains a staff of over 1,500 employees. Brown and Caldwell serves clients in public agencies and the private, municipal and federal government sectors.