McCarthy Building Companies, Inc. 1604 Eastport Plaza Drive, Collinsville, IL 62234

Welcome to McCarthy Building Companies, Inc., your trusted general contractor located at 1604 Eastport Plaza Drive, Suite 106, Collinsville, Illinois. At McCarthy, we believe in more than just building projects; we create exceptional experiences throughout the entire project life cycle. As an employee-owned company, we bring the right people, passion, and resources together to achieve the best outcomes for our clients.

With a strategic location along the I-255 corridor, just minutes from our company headquarters, our Illinois office is uniquely positioned to support the growth and expansion needs of Southern and Central Illinois. As a community-focused builder with national expertise, we are equipped to cover the entire U.S. while making a positive impact in every community we serve.

Our team takes immense pride in delivering high-quality work and lasting, impactful results. Whether you’re looking to build hospitals, schools, transportation systems, renewable energy projects, or water and wastewater facilities, McCarthy is your ideal partner to keep your community ahead of the curve.

At McCarthy, we offer more than just construction services; we provide a supportive, family-like environment that fosters career growth, whether you're just starting out or have years of experience in the industry. Our annual company events celebrate the dedicated professionals who contribute to our success, and our commitment to safety ensures that we overcome challenges and improve every project we undertake.

Stay informed with the latest construction news and trends, and discover how our expertise in areas like subsurface utility mapping and solar development can benefit your future projects. Contact us today at 618-344-4142 to see the difference an employee-owned builder can make for your next project. Experience the McCarthy way, where excellence is built into every endeavor.