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Our Story
Tonn and Blank is a leading building construction company headquartered in Michigan City, Indiana, and serving the entire Midwest region. We offer decades of expertise in managing all aspects of construction services, from pre-planning to complete, design-build project delivery.
In 1922, Tonn and Blank Construction Company, was founded in Michigan City, Indiana, as a partnership between C.W. Tonn and J.G. Blank.
What We Do
Commercial Experience
Arena / Stadium
Assisted Living
Bank
Education (K-12)
Fitness Center
Hospital / Nursing Home
Industrial Maintenance
Laboratory
Park / Playground
Retail Store
School / College / University
Design Build
Medical Office
Office Building
Regions & Counties Serviced
- Indiana - Indianapolis and Vicinity
Colorado All
Illinois All
Indiana All
Iowa All
Kansas All
Michigan All
Minnesota All
Missouri All
North Dakota All
Ohio All
South Dakota All
Wisconsin All
Our CSI Codes
01 35 16 - Alteration Project Procedures
Associations & Memberships
NWIBRT (Northwest Indiana Business Round Table)
Construction Advancement Foundation
Northwest Indiana Forum
AIA (American Institute of Architects)
NSPE (National Society of Professional Engineers)
SMPS (Society for Marketing Professional Services)
BCA (Building Contractors Assn.)
MICCS (Metro Indianapolis Coalition for Construction Safety)
LEED (Leadership in Energy and Environmental Design)
ISA (Indiana Subcontractors Assn.)
