Creative Solutions to Complex Problems in

Engineering and Materials Science

CTLGroup is a firm of engineers, scientists, consultants, technical specialists and architects who help our clients with complex challenges around the world. We serve clients in the global markets of: energy & resources, green solutions, transportation, litigation & insurance industries, materials & products, and buildings & facilities.


Buildings & Facilities

When Bad Things Happen…

…to good buildings. Time takes its toll everywhere. Buildings are no exception. CTLGroup maintenance plans and service-life projections keep our buildings and facilities clients in business.

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Emergent Solutions

Solving Complex Unconventional Problems

Offering a suite of expertise and services that span multiple markets and disciplines.

Emergent Solutions

Energy & Resources

We Generate Solutions

Advances in technology provide promising alternatives for both old and new energy, as well as the development of natural resources. CTLGroup helps make those promises become reality.

Energy and Resources

Green Solutions

Reducing Energy Use and Impacts of Materials

Providing a comprehensive variety of services that support sustainability of the built environment.

Green Solutions

Litigation & Insurance

Because "Why" Matters

Proof. Fault. Resolution. Closure. These are, at once, desired results and motives in hiring construction litigation support. CTLGroup merges science with law when the discovery of cause is paramount.

Litigation and Insurance

Materials & Products

From Our Labs to the Marketplace

When development dollars are at risk, manufacturers come to us. When projects face complex challenges, engineering firms or contractors come to CTLGroup.

Materials and Products


Let's Get There Together

However you are traveling, CTLGroup may be helping you get where you are going. Our engineers and scientists have worked on highways, bridges, railroads, airports and seaports.


Water & Wastewater

Our Most Precious Resources

Much of the world's infrastructure is geared towards managing water. CTLGroup ensures that these facilities and systems run at optimal performance.

Water and Wastewater
Paulina Street Parking Garage

Doubling Down

An innovative approach to repairs more than doubles the life of a seemingly-doomed…
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Material Testing Laboratory Services

CTLGroup offers material-testing lab services including physical and chemical testing,…
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Chemistry Lab
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Structural & Transporation Laboratory Services

CTLGroup is one of the leading independent testing facilities in North America.…
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Serving Global Markets

CTLGroup has completed projects in all 50 states and over 70 countries.…

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Upcoming Events

Feb 20, 2015

2015 Illinois Concrete Conference

Matthew D'Ambrosia, PhD, PE, is presenting "Carbonate Waste Fines Utilization for Sustainable Concrete Pavements"
May 12, 2015

Nuclear Energy Assembly 62nd Annual Industry Conference and Supplier Expo

CTLGroup is exhibiting at the Nuclear Energy Assembly's 62nd Annual Industry Conference and Supplier Expo. NEA is the gathering
Oct 04, 2015

Railway Interchange 2015

CTLGroup is exhibiting at Railway Interchange 2015. Railway Interchange is the largest U.S.-based technical conference and
Apr 12, 2015

American Concrete Institute Concrete Convention and Exposition

ACI conventions are dedicated to improving the design, construction, maintenance, and repair of concrete structures. Conventions
Jan 11, 2015

Transportation Research Board 94th Annual Meeting

CTLGroup is attending the Transportation Research Board's 94th Annual Meeting held in Washington, D.C. at the Walter E. Washington
CTLGroup is an internationally-recognized expert consulting engineering and materials science firm that provides engineering, testing and scientific services to our clients across the globe. Our engineering expertise is complemented by one of the largest and most comprehensive private material and structural testing laboratories in the world. Our experts can address problems from the materials and structural perspectives to deliver an integrated solution.