Southern Illinois Construction Company

  
      Infrastructure
      and Integrity
      for Life
    
      Built on Integrity
      Driven by
      Purpose

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Building the Backbone of the Heartland.

This is our home. From I-57 expansion to the bridges connecting our commerce, E.T. Simonds has been delivering precision-engineered infrastructure that has fueled our region’s economic growth for over 80 years. We’re proud our legacy serves as a foundation for the communities of Southern Illinois—today and for generations to come.

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UNMATCHED
PRECISION.
UNWAVERING
INTEGRITY.

In large-scale development, there’s no room for error. We combine technological accuracy with eight decades of operational excellence to deliver high-quality results and eliminate risk. Trust the steady hand of a partner committed to precision, safety, and integrity on every project.

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TAKING CARE OF
OUR EMPLOYEES AND THEIR LOVED ONES.

We care for our employees at work and at home. From the job site to everyday life, we support the people behind the work, because strong teams build strong communities.

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BE PART OF SOMETHING BIGGER  THAN YOU EVER DREAMED YOU’D HELP CREATE.

Our employees construct the long-lasting, precise infrastructure that supports Southern Illinois. The legacy under our boots is built with stone and steel.

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BUILD YOUR FUTURE WITH A COMPANY THAT INVESTS IN YOU.

At E.T. Simonds, we build careers, not just roads. Since 1946, our founders Eugene and Emma Simonds have been taking care of our own, from championing women in field leadership to investing in our team with 100% paid benefits and college tuition support.

We combine Southern Illinois’ most advanced construction technology with a culture that truly puts people first.

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PRIDE IN OUR WORK, OUR EMPLOYEES, AND OUR COMMUNITY SINCE 1946.

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Us

FROM THE FIELD

LATEST NEWS & UPDATES

Employee Stories

“E.T. Simonds is a very
family-oriented, very loving company.
They put me through college.
I feel like E.T. Simonds invested in me.
I’m so proud of myself.
My kids are proud of me.”