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Engineering, Consulting & Architechure

About Us

Headquartered in Walnut Creek, Calif., Brown and Caldwell is a full-service environmental engineering and consulting firm with 70 offices and 1,850+ professionals across the country. For more than 75 years, our creative designs and progressive solutions have helped scores of municipal, federal and private agencies successfully overcome their most challenging environmental obstacles.

We've built a reputation for collaborating with clients, adding value through innovation and building relationships that last. But we're also known for our legacy of environmental stewardship that goes back to Dave Caldwell, who, since founding the company in 1947, insisted that BC's approach to plant design minimize energy use. A true visionary, he pioneered and advocated wastewater reuse long before it was fashionable. Dave's belief that the needs of society, our clients and the environment can co-exist remains an integral part of our culture and is readily seen in the innovations and advancements of the BC engineers and scientists who have since followed.

As our company marks its 75th year, we've renewed this commitment to sustainable, economically advantageous solutions. It is our fundamental belief that we can drive company growth by providing innovative solutions that preserve the health of our ecosystems and improve the lives of our employees, clients and our community. As such, we're developing new ways of doing business, ranging from choices about the materials we use and how we operate our offices to expanding the sustainable services we provide to clients.