Infrastructure Engineering Inc. (IEI) is a diverse and experienced civil engineering firm with more than 150 talented professionals and offices in Chicago, Indianapolis, Peoria, Detroit, New York, Trenton, Houston, and Atlanta.  

We deliver civil and structural engineering solutions for complex highway, roadway, streetscape, bridge, water management, mass transit, and airport projects. IEI provides design engineering, program management, and construction engineering services.

We began as a two-person office, and over the last 25 years, we have grown to partner with our clients on vital and high-profile projects, earning a reputation for INGENUITY. Today, we are a leading engineering firm known for quality and responsiveness.  

We continuously look for new opportunities to partner with our clients. Their success is our ultimate goal; it’s how we measure our own.


Construction

Engineering

Infrastructure

Infrastructure Engineering Inc.

Infrastructure Engineering Inc.'s headquarters in Chicago, United States

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