Brown and Caldwell is an environmental engineering and construction firm based in the United States. The company was founded in 1947 in Walnut Creek, California, and has since grown to become one of the largest and most respected environmental engineering firms in the country. The company's headquarters is located in Walnut Creek, California.

With additional offices spread across the United States, it has a strong national presence. The headquarters serves as the central hub for the company's operations and decision-making processes. Brown and Caldwell offers a wide range of products and services related to environmental engineering and construction.

This includes water and wastewater treatment, stormwater management, solid waste management, environmental planning and permitting, and industrial process improvement. The company provides innovative and sustainable solutions to complex environmental challenges, helping clients in both the public and private sectors meet regulatory requirements and improve their operations. On a global scale, Brown and Caldwell operates primarily in the United States, although it has completed projects in other countries as well.

The company has developed a strong network of strategic partnerships and alliances to enhance its global presence. Notably, it has established partnerships with international organizations such as the World Bank and the United Nations Development Program to support sustainable development projects in developing countries. In terms of market position, Brown and Caldwell is a major player in the environmental engineering industry.

It consistently ranks among the top environmental engineering firms in the United States, and its expertise and innovative approaches have garnered recognition and trust from clients and industry peers alike. The company competes with other leading firms such as AECOM, CH2M (now Jacobs), and Tetra Tech. Over the years, Brown and Caldwell has achieved several milestones and continued to evolve its strategies and offerings.

It has received numerous awards and recognition for its innovative projects and contributions to the field of environmental engineering. The company has also expanded its portfolio by acquiring several complementary firms and integrating their expertise into its services. As of the latest available information, Brown and Caldwell continues to thrive as a prominent player in the environmental engineering industry.

It remains committed to providing sustainable solutions and is constantly seeking new opportunities to grow and serve its clients. With its strong reputation and expertise, the company is well-positioned to tackle future environmental challenges and contribute to a more sustainable world