TTL Associates, Inc.

About TTL Associates, Inc.

Established in 1927 as Toledo Testing Laboratory, TTL Associates, Inc. has grown to be a full-service environmental, construction testing/inspection, and geotechnical engineering firm serving private and public entities throughout the United States. TTL has offices in Toledo and Plymouth, MI and maintains project offices in Cleveland, Denver, Las Vegas and Washington, D.C.

TTL’s staff includes geotechnical engineers; geologists; environmental scientists; industrial hygienists and technicians; ; AHERA building inspectors and management planners; certified roof inspectors; mold, asbestos and lead inspectors; drilling experts; and NICET-certified construction material testing technicians.

TTL’s staff is supported by a Certified Independent Construction Laboratory for Quality Construction Material Testing Services. TTL’s in-house asbestos laboratory is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP). Our geotechnical and materials testing laboratories are accredited by the American Association of State Highway and Transportation Officials (AASHTO) and validated by the US Army Corps of Engineers (USACOE) to perform testing services.

Our market segments include private and public entities, including commercial, industrial, educational, retail, architectural, engineering, construction, health care, transportation, energy segments, as well as city, county, state and federal agencies.

TTL’s Management Team is “hands-on,” dedicated to approaching each project with a client-oriented, business management mindset. This approach fosters the development of innovative, value-driven and cost-effective solutions to the unique challenges faced by our clients. TTL’s dedication to excellence and client service is evidenced by the long history of repeat business we gratefully enjoyed over the last 95 years.

Our Mission Statement best summarizes our company business values: Providing quality, responsive cost- effective environmental, health/safety and geotechnical engineering consulting services and solutions.


Field technician

May 2019 - August 2019 Plymouth, MI
“Field experience on the job site. Seeing an airport runway being built was pretty cool. ”
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