Brown and Caldwell is a full-service environmental engineering and construction firm established in 1947. Headquartered in Walnut Creek, California, it operates with more than 1,600 professionals across 52 offices in North America and the Pacific, offering a broad range of services geared towards water and environmental solutions. The firm specializes in environmental consulting, engineering, planning, design, construction management, and operations and maintenance services across sectors such as water, groundwater, wastewater, infrastructure, and water resources.

As an employee-owned company, Brown and Caldwell emphasizes exceeding client expectations and making a positive impact on employees, communities, and the environment. Their service portfolio includes regulatory compliance, site assessments, solid and hazardous waste management, and remediation services provided to local and federal governments, universities, and private industry.

The company also delivers turnkey project solutions through various delivery methods including design-build, construction manager-at-risk, progressive design-build, and acting as owners’ representatives. They focus on innovation and customization to solve complex environmental and water-related challenges.

Brown and Caldwell is committed to climate resilience and sustainable infrastructure, actively partnering with industry alliances and expanding regional offices to better serve their clients and local communities. Their mission statement highlights safeguarding water and restoring habitats as fundamental to keeping communities thriving.