Chicago Testing Laboratory
Warrenville, ILDelivering expertise and accuracy for over a century
Service detail: Construction Materials Testing
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Delivering expertise and accuracy for over a century
Service detail: Construction Materials Testing

Professional Engineering and Surveying
Service detail: Civil Engineering

Knowledgeable Partners. Leading with Expertise. Committed to Excellence.
Project: Fire Station 12

Working with Communities
Project: Village of Dorchester Street Reconstruction

Engineering with Integrity, Honesty & Highest Standard of Care
Service detail: Geotechnical Engineering

Bringing Together Ideas That Work
Project: Clarke County Airport

Founded in 1973, DDS Engineering, PLLC is the oldest continually operated engineering practice in Bowling Green, Kentucky. Serving South Central Kentucky and North Central Tennessee, it delivers land surveying, civil and geotechnical engineering, construction materials testing, and special inspection services to public agencies, private developers, and municipal, commercial, industrial, and residential clients.
Service detail: Civil Engineering
Founded in 1986, Despiau Associates Corp. is a San Juan, Puerto Rico geotechnical engineering practice and soil/geotechnical engineering laboratory. Since its founding, it has delivered foundation design, geotechnical investigation, materials testing, and construction inspection across more than 6,500 public and private projects throughout Puerto Rico, including Vieques and Culebra. Direct involvement in foundation supervision, analysis, and design spans more than 3,000 projects - roads, bridges, schools, parking facilities, residential and multi-story buildings, industrial facilities, and pharmaceutical plants. Alongside core geotechnical services, the practice offers environmental soil and groundwater characterization and forensic engineering and expert witness support for financial institutions, insurance companies, attorneys, and developers. Industries served include pharmaceutical, commercial, manufacturing, retail, waste management, and state, federal, and municipal government.
Service detail: Geotechnical Engineering Services
Construction management, civil engineering, and land surveying services for public and private sector clients.
Project: Central Holding and Processing Center Facility, CM&I Services

Your Trusted Partner in Quality Control & Geotechnical Solution
Project: New Frederick Douglass Memorial Bridge and Suitland Parkway / I-295 Interchange

Geotechnical, Environmental, Surveying & Materials Testing Services
Project: QuikTrip Multiple Locations

YOUR GO-TO Engineering Consulting Partner
Project: SK Innovation EV Battery Site

Your Go-To Engineering Consulting Partner
Project: SK Innovation EV Battery Site
ETTL Engineers & Consultants Inc. is a multidisciplinary engineering and consulting firm founded in 1965 and headquartered in Whitehouse (Tyler area), Texas. With over 100 employees across five offices in Texas and Arkansas, ETTL provides geotechnical engineering, construction materials testing, environmental consulting, drilling, and landfill services to industrial, commercial, governmental, and private clients throughout Texas and adjoining regions. ETTL maintains an accredited geotechnical and construction materials testing laboratory.
Service detail: Geotechnical Engineering
Pavement, Geotechnical and Materials Engineers
Project: Utility Cut Patching Impact Study

Planning | Surveying | Testing | Landscape Design
Service detail: Site Development

Local Experience, Local Team, Locally Focused
Project: Old Dominion University

Civil, Environmental and Geotechnical Engineers Serving Texas Since 1989.
Project: Upper Leon River MWD Water Treatment Plant
Quality Actions for Quality Clients
Project: Oil & Gas Recycle Water Facilities Construction QA/QC

Civil, Geotechnical, Surveying, Testing, Environmental
Service detail: Civil Infrastructure

We are Falcon. Experience the difference.
Project: Mist Lake Facilities Expansion

Building Inspiring Spaces
Service detail: Geotechnical Engineering

Solid waste, environmental, and geotechnical engineering services
Project: Tangipahoa Parish Regional Solid Waste Facility
Engineer - Design - Inspect
Service detail: In-Situ Testing