Soil Testing & Engineering Ltd. (STL) was founded in 1999 with a commitment to provide high-quality professional services in the fields of geotechnical and environmental engineering. As the firm grew and evolved, we broadened our services to meet the needs of various clients. This expansion led to the development of our sister company, EDB International, which delivers planning, design, surveying, and civil and residential engineering services to government agencies as well as private and public sector clients.
Our work on all projects is based on the following principles:
STL is a prequalified S/M/DBE with many government agencies. We are also EDGE and MBE certified with the Ohio Department of Administrative Services. We are a registered professional engineering firm in Ohio and Illinois and are prequalified with the Ohio Department of Transportation to provide various civil engineering, surverying, and geotechnical engineering services.
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