Carollo Engineers is an environmental engineering firm specializing in planning, design and construction services for water and wastewater facilities.
Services and expertise
- Water resources and drinking-water planning and design
- Wastewater treatment, collection and infrastructure
- Water reuse, resilience and utility-program support
Directory information
- Category: Engineering & Design
- Corporate headquarters: Walnut Creek, California
- Market: Water and wastewater infrastructure across the United States
Official website · Public contact route
Public company sources
Complimentary directory entry curated by Infraday from public company information. This profile was not submitted or claimed by the company. Inclusion does not imply sponsorship or endorsement.
Reviewed October 1, 2026.
- Primary company category
- Engineering & Design
- Services offered
- Environmental engineering for water resources, drinking water, wastewater, water reuse and related infrastructure
- Infrastructure sectors served
- Engineering & Design; Water & Wastewater
- Office locations
- Corporate headquarters in Walnut Creek, California; offices across the United States
- Geographic markets served
- Water and wastewater infrastructure
- Year founded
- 1933
- Search keywords
- water engineering; wastewater; drinking water; water reuse; treatment; utility infrastructure
Purchasing needs & capabilities
Supplier / service provider
- What we offer
- Planning, design and construction services for water and wastewater facilities
- Geographic focus
- United States
Use official procurement and organization websites for direct inquiries.