Carollo Engineers

Who Is Carollo Engineers?

Carollo Engineers is a dedicated environmental engineering firm specializing exclusively in the planning, design, and construction management of water and wastewater facilities. With a singular focus on water, the company has been delivering innovative and sustainable solutions to municipalities, public agencies, private developers, and industrial clients across North America for over 90 years. Their expertise encompasses a wide range of services, including water treatment, wastewater treatment, energy solutions, sustainability initiatives, and integrated water resources management. Carollo Engineers is committed to enhancing the quality of water resources, ensuring environmental sustainability, and fostering resilient communities.

Who Owns Carollo Engineers?

Carollo Engineers is an employee-owned corporation, allowing its staff to have a vested interest in the company's success and direction. This ownership structure fosters a collaborative and innovative work environment, aligning the interests of the employees with the company's mission to provide exceptional water engineering services.

When Was Carollo Engineers Founded?

Founded in 1933 in Phoenix, Arizona, Carollo Engineers has grown from a small consulting firm into one of the leading environmental engineering companies in the United States. Over the decades, the company has expanded its services and geographic reach, establishing a strong presence in the water engineering sector.

What Services Does Carollo Engineers Offer?

Carollo Engineers offers a comprehensive suite of services tailored to meet the diverse needs of its clients. These services include:

• Water Treatment: Designing and implementing systems to purify and distribute clean water.
• Wastewater Treatment: Developing solutions for the safe and efficient treatment of wastewater.
• Energy Solutions: Integrating energy-efficient technologies into water and wastewater facilities.
• Sustainability Initiatives: Promoting environmentally responsible practices in water management.
• Integrated Water Resources Management: Planning and managing water resources to ensure sustainable use.
• Research and Development: Innovating new technologies and methods in water treatment and management.
• Water Reclamation/Reuse: Developing systems for recycling and reusing water to conserve resources.
• Construction Management: Overseeing the construction of water and wastewater facilities to ensure quality and efficiency.
• Infrastructure and Program Management: Managing large-scale water infrastructure projects from inception to completion.
• Alternative Project Delivery: Utilizing innovative project delivery methods to meet client needs.
• Resilience Planning: Ensuring water systems are resilient to environmental changes and challenges.

These services are designed to address the complex challenges associated with water management, providing clients with sustainable and effective solutions.

Carollo Engineers Business Information

Carollo Engineers is headquartered in Walnut Creek, California, and operates over 60 offices across North America. The company employs approximately 1,960 individuals as of March 2026, reflecting a 33% growth from 2023. This expansion underscores the increasing demand for specialized water engineering services and the company's commitment to meeting these needs.

Carollo Engineers Contact

For inquiries or more information about Carollo Engineers, you can reach their San Francisco office at:

Carollo Engineers Phone Number

Phone: +1 415-399-1601

Carollo Engineers Mobile Phone

No mobile phone number could be identified for Carollo Engineers; contacting the company directly is recommended for the most up-to-date information.

Carollo Engineers Fax

Fax: +1 415-399-9414

Carollo Engineers Email Address

No email address could be identified for Carollo Engineers; contacting the company directly is recommended for the most up-to-date information.

Carollo Engineers Address

550 California Street, Suite 730
San Francisco, California 94104

Carollo Engineers Working Hours

Carollo Engineers serves during weekday business hours; please get in touch for exact times.

What Time Does Carollo Engineers Open?

Carollo Engineers opens during standard weekday business hours; please contact them directly for specific opening times.

What Time Does Carollo Engineers Close?

Carollo Engineers closes during standard weekday business hours; please contact them directly for specific closing times.

Is Carollo Engineers Open on Weekends?

Carollo Engineers is not open on weekends; please contact them during weekday business hours for assistance.

Is Carollo Engineers Open on Sundays?

Carollo Engineers is not open on Sundays; please contact them during weekday business hours for assistance.

Carollo Engineers Instagram

No Instagram account could be identified for Carollo Engineers; contacting the company directly is recommended for the most up-to-date information.

Carollo Engineers Facebook

No Facebook account could be identified for Carollo Engineers; contacting the company directly is recommended for the most up-to-date information.

Carollo Engineers Twitter (X)

No Twitter account could be identified for Carollo Engineers; contacting the company directly is recommended for the most up-to-date information.

Carollo Engineers LinkedIn

Carollo Engineers maintains an active presence on LinkedIn, where they share company updates, industry insights, and career opportunities. You can follow them at: