people lab facilities quality management system awards williams building diagnostics consulting services acoustic emission building performance assessment building & infrastructure sustainability failure investigation mass concrete consulting materials consulting nondestructive testing repair & rehabilitation structural engineering & evaluation lab services construction materials structural & transportation testing specialized testing markets buildings & facilities energy & resources litigation & insurance materials & products transportation water & wastewater emergent solutions green solutions projects buildings & facilities emergent solutions energy & resources green solutions litigation & insurance materials & products transportation water & wastewater latest thinking articles research press releases events sensors rapid rh concrete moisture test meter pavement sensors contact careers emergency 847 556 2670 contact us online home 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 . meet the people of ctlgroupbuildings & 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 . buildings and facilitiesemergent solutions solving complex unconventional problems offering a suite of expertise and services that span multiple markets and disciplines . emergent solutionsenergy & 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 & resourcesgreen solutions reducing energy use and impacts of materials providing a comprehensive variety of services that support sustainability of the built environment . green solutionslitigation & 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 & insurancematerials & 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 & productstransportation 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 . transportationwater & 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 & wastewaterprevnext containment vessel plate evaluationat the davis besse nuclear power station . learn morewind uplift vs. toe nail connectionscan roofs be built more efficiently to withstand high winds learn morebetter understand why the combination ofmoisture and concrete roof decks is troublesome . learn more serving global marketsctlgroup has completed projects in all 50 states and over 70 countries . upcoming events prev next nov 17 2016 defense trial counsel of indiana annual meeting ctlgroup is a proud annual sponsor of the defense trial counsel of indiana . at the upcoming annual meeting david kosnik nov 29 2016 53rd acpa annual meeting ctlgroup will be attending the acpa annual meeting this year . apr 10 2017 2017 electric power conference ctlgroup will be attending the 2017 electric power conference in chicago illinois . jan 29 2017 18th annual windstorm insurance conference ctlgroup will be attending the 18th annual windstorm insurance conference in orlando florida . for more aug 28 2016 11th international conference on concrete pavements ctlgroup s toy poole and view more events ctlgroup is an internationally recognized expert consulting engineering and materials science firm that provides 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 . aboutconsulting serviceslab servicesmarketsprojectslatest thinkingcontact privacy policysensorssitemap follow us facebook twitter linkedin google youtube