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 they 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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CTLGroup Material Testing Laboratory Services

CTLGroup offers material-testing lab services including physical and chemical…
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Chemistry Lab
Mass Concrete

Mass Concrete Consulting

CTLGroup offers unparalleled mass concrete consulting services…
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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

Jun 26, 2014

AIA Convention 2014

AIA Convention 2014 is the annual conference of the American Institute of Architects (AIA), held this year in Chicago

Jul 15, 2014

The Corvallis Workshops: Characterization Tools to Assess Performance of Cement-Based Materials

CTLGroup is sponsoring the Corvallis Workshops at Oregon State University July 15-18, 2014. The goal of the workshop is

Jun 23, 2014

International Conference on Durability of Concrete Structures

The 4th International Conference on Durability of Concrete Structures will take place July 23-26, 2014, at Purdue University,

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.