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For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions. Water is not just part of what we do—it’s all we do. We see more in clean water: more than the science, the planning, and the design. We see the families and communities we serve and the fragile ecosystems we protect. That perspective drives us to deliver innovative, sustainable solutions that improve performance, minimize risk, reduce costs, and ultimately create healthier environments. As an environmental engineering firm, we specialize in the planning, design, and construction of water and wastewater facilities. Our sole focus on water means our clients benefit from unmatched expertise and collaboration, and our employees find purpose in work that changes lives and shapes a better world. Since 1933, our commitment to water has remained unwavering. We come to work every day passionate about creating a brighter, more resilient future for our communities and our planet. Learn more at carollo.com.

Website https://carollo.com
Revenue $266.7 million
Employees 1,739 (1,488 on RocketReach)
Founded 1933
Address 2795 Mitchell Dr, Walnut Creek, California 94598, US
Phone (925) 932-1710
Fax (954) 837-0035
Technologies
Industry Construction, Energy, Sustainability, Environmental Services, Architecture, Engineering & Design, Water Treatment, Real Estate, Wastewater Treatment, Consulting, Legal, Integrated Water Resources, Professional Services, Research and Development, Manufacturing, Water Reclamation/Reuse, Water Purification, Construction Management, Infrastructure, Water Transportation, Business Solutions, Transportation, Program Management, Alternative Project Delivery
Web Rank 1 Million
Keywords Water Engineering, Water Quality, Water Management, Water Supply, Water Resources, Water Treatment, Sustainable Water, Wastewater Treatment, Water Conservation, Clean Water, Environmental Engineering, Water Reuse, Stormwater Management, Municipal Engineering, Hydraulic Engineering, Civil Engineering, Drought Management, Hydrology, Irrigation Engineering, Infrastructure Engineering
Competitors Jacobs, Arcadis, HDR, Tetra Tech, Golder Peru S.A., Stantec, Black & Veatch, KBR, Inc., WSP, VECO Engineering +40 more (view full list)
SIC SIC Code 8711 Companies, SIC Code 871 Companies, SIC Code 87 Companies, SIC Code 874 Companies
NAICS NAICS Code 54133 Companies, NAICS Code 541 Companies, NAICS Code 5413 Companies, NAICS Code 54 Companies

Carollo Engineers Questions

The Carollo Engineers annual revenue was $266.7 million in 2026.

B Narayanan is the President and CEO of Carollo Engineers.

1,488 people are employed at Carollo Engineers.

Carollo Engineers is based in Walnut Creek, California.

The NAICS codes for Carollo Engineers are [54133, 541, 5413, 54].

The SIC codes for Carollo Engineers are [8711, 871, 87, 874].

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