A Commitment to Excellence in
Aggregate and Organic Soil
Solutions Since 1947

Founded by Vern Thelen, Thelen Materials is an industry leader and has grown to be one of Chicagoland's largest family owned aggregate and organics manufacturer serving Northeastern Illinois and Southeastern Wisconsin for 74 years.  

State Certified Aggregates and Organic Soils

Contractors and homeowners alike trust Thelen Materials to be large enough to take care of their needs and small enough to know and appreciate their customers. 

Thelen Materials offers IDOT and WisDOT certified bulk aggregates and organic soil solutions across northern Illinois and southern Wisconsin. Thelen Materials provides the highest of quality aggregates, organic soil blends and transportation solutions to both the public and private construction markets.

our projects

Quality Thelen Products

Environmentally Conscious Practices

New from Thelen Materials

Fuel surcharge has been implemented for all pick up & deliveries. 

Summer hours:

Antioch and Lakemoor:  M-F 5am - 4pm. 

Genoa City:  MWF 7am - 3pm.  Additional hours available upon request.  Stay safe!  

These hours are seasonal please call first to confirm!

Employment opportunities: 

No current openings


Pick or Delivery Available

All products are available for pickup or delivery from our
Antioch, Lakemoor, and Genoa City facilities



Thelen Family Foundation

Thelen Family Foundation

Thelen Sand and Gravel


Aggregate Producers of Wisconsin Illinois Road and Transportation Builders Association Illinois Association of Aggregate Producers Underground Contractors Association of Illinois Wisconsin Underground Contractors Association Great Lakes Construction Association