Infrastructure Engineering Inc. (IEI) is a diverse and experienced civil engineering firm with more than 90 talented engineers who work in five cities in the states of Illinois, Indiana, Michigan, New York and New Jersey. We’ve performed civil and structural engineering for complex highway, railway, water management, mass transit and airport projects. We’ve completed both vital and high profile, world-class developments. Along the way, we’ve developed a reputation for INGENUITY. We take great pride in applying strategic thinking at the beginning of a project and overcome any obstacles that may arise, in order to not just meet, but exceed client expectations. Today, we are a leading engineering firm known for quality and responsiveness; we also have a proven track record of success as a Prime civil engineering firm. You could say that overcoming challenges has been our story since day one. Which explains why we’re so good at resolving our client’s problems. As we grow, we look for new opportunities to partner with our clients. Their success is our ultimate goal; it’s how we measure our own.