Full-Service Construction Management Company. Valuable Resource To Your Project & Community.

Solid Foundation.
Trusted Partner.

Since 1922, Tonn and Blank has been the leading full-service construction management, general contracting, and design-build firm in the Midwest. From historical renovations to new construction, our team approaches each project with a commitment to excellence and quality craftsmanship, delivering client-centered expertise in all phases of your project’s development.

Our team takes great pride in embodying the spirit and skill of an owner’s builder – protecting the best interest of our client, their project, and the community.

Our Services

We offer a streamlined, full-service approach to meet all of your project needs.

Architecture & Design

We create appealing, effective building designs that bring your vision to life.

Commercial Construction

From planning and development to ground-up construction, we cover all phases of a project.

Program Management

Serving as an extension of your staff, we coordinate a project from concept to end-user occupancy.


With our expert labor force we have greater control over the quality of workmanship, budget, and schedule.

Off-Site Construction

Off-site construction is faster, safer, more regulated and requires less coordination efforts, resulting in more productivity and improved quality control. Our new 85,000 square foot off-site construction facility maximizes our self-reliance and competitive advantage by improving each project’s quality, safety, schedule, and site logistics.

Our Portfolio

Whether restoring a faith-based structure to its former glory, or building a new specialty hospital downtown, the end result is always the highest standard in construction.

Dean & Barbara White Southlake YMCA

This state-of-the-art 121,000 square foot renovation and expansion provides health, wellness, education and family enrichment programs to the Crown Point community. This YMCA features a…
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Orthopedic Center of Excellence

Franciscan Health and Methodist Sports Medicine – long recognized as national leaders in orthopedic surgery and related clinical care – joined their expertise and award-winning…
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University of Saint Francis

Working closely with USF, Tonn and Blank served as the construction manager and contractor in the design and construction of the new Achatz Hall of…
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Urschel Laboratories, Inc World Headquarters

Tonn and Blank has served as an adviser and contractor for Urschel Laboratories since the early 1950s.  It built a factory for Urschel Laboratories and over…
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St. Joan of Arc

When a blazing fire swept through St. Joan of Arc Parish, the Reverend Andrew J. Corona and his parishioners transformed the tears and heartbreak they…
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Our Clients Are The Backbone For Our Sustained Success

Numbers Tell A Story

Projects successfully delivered in the last 10 years
Of our profits go back to the communities in which we work
ENR Top Midwest Contractor
Current projects utilizing our off-site construction division

Let’s Build Together

Whether you’re ready to collaborate on a project, discover how our services can enhance your construction experience, or curious about joining our team – we’re here for you.