APSI, Inc.
Irvine, CAWe Solve.
Project: San Antonio Water System Service Center Facilities
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Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.
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We Solve.
Project: San Antonio Water System Service Center Facilities
Unwavering Quality. Reliable Results.
Project: Pierre SD Wastewater Treatment Plant

architects + engineers
Project: Big M Building Reimagining

A Stable Foundation for a Solid Future
Project: 45th St. Underpass

A Structural Systems Manufacturer, Not a Commodity Supplier
Project: Old Auburn Rd

Your independent building automation consultants
Service detail: Submittal Packages
Working to build a better Gulf Coast
Project: Keesler Gate and Division Street Improvements
Finding a better way.
Service detail: Transportation Solutions
Engineering Services Horsepower
Project: 4.5 MW Solar Farm
Collaborative and analytical owner advocacy for complex construction and program management
Service detail: Program and Project Management

An Independent, Locally Owned Engineering Practice.
Project: F-35 Hangar
We Build Confidence
Project: ONEOK Rockies Midstream Compressor Station Program

Gulf Coast Engineering + Environmental Solutions
Project: City of Pass Christian ARPA Funded Projects

Moving engineering forward
Project: Faith Community Church Solar Canopy

Focus on Quality. Multi Discipline. Culture of Caring.
Project: Chandler's 66-Inch Sewer Interceptor Rehabilitation
Ditesco is a Fort Collins, Colorado-based program management, project management, construction management, and civil engineering firm with over 18 years of service to the northern Colorado community. It serves government, municipal, and private clients on projects ranging from water and wastewater treatment facilities and transportation infrastructure to utility systems, dams, and public buildings. In 2022, Ditesco merged with ESP Associates, Inc., a national engineering firm, extending its capabilities across civil engineering, surveying, water resources, transportation, and environmental disciplines.
Service detail: Program Management
Practical Solutions. Real Results
Service detail: Construction Management and Inspection

Engineering and Materials for Your Retaining Wall Projects
Project: I-64 High Rise Bridge Sound Barrier

Building What Matters
Service detail: Preconstruction

Predictable delivery for complex capital programs.
Project: Middle Mile Broadband Initiative
Community foundations built with optimism
Project: US-23 Flex Route Phase 2 Project
Global Engineering Solutions for Transformative Development
Project: Critical Intersections Project (CIP)
Committed to a strategic approach to delivering sustainable project solutions.
Project: Betsy Ross Interchange, Section BR2

KL&A Engineers and Builders is a Rocky Mountain-based engineering and construction practice founded in 1994. Operating across six offices in Colorado, Wyoming, and Utah, it integrates structural engineering, civil engineering, land surveying, steel construction, mass timber design, and embodied carbon life cycle assessment under one roof. With more than 7,000 projects completed and 120-plus team members, KL&A serves commercial, education, cultural, residential, industrial, and energy markets and is recognized as the premier structural designer of mass timber in the Rocky Mountain region.
Project: Aspen Art Museum