Perkins Williams & Cotterill Architects

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.

Optimal Design Studio is a custom home design and consulting firm of talented and experienced designers that serves Sonoma, Napa, Sacramento Metro and SF Bay Area.

DLR Group is an integrated design firm providing architecture, engineering, planning and interior design from approximately 18 locations across the United States and in Shanghai. Located in Sacramento, Calif., the company has design expertise in K-12 education, higher education, corporate, justice and sports. It is one of the leaders in K-12 education design in the United States. In 2010, DLR Group has merged with WWCOT. WWCOT offers health care, civic and senior residential community design, as well as has expertise in architecture forensics.