Steven Plastics, Inc. Precision Custom Injection Molding

Founded in 1989, Steven Plastics Inc is a privately held precision plastic injection molding company, specializing in custom parts, precision inserts and finished products for medical, consumer products, automotive and leisure industries worldwide.

We are a certified critical component manufacturer for organizations assembling test kits for Covid 19. Our partners include: Perkin Elmer Janus Automated Workstations, Sciclone and Zephyr liquid handlers.

Our mission: Build strong lasting relationships with our Customers and consistently deliver superior products and solutions of exceptional value to help them gain a competitive advantage in their markets.

Contact:  Steven Ballek, Chief Operations Officer
Email:; phone: 847-885-2300

Facility: 34,000 sq. ft. under roof, located in Hoffman Estates Illinois. Corporate commitment to sustainability in material and manufacturing processes

More than 32 years of commitment to continuous improvement and providing superior customer service.


  • 22 Presses:  55-1125 Tons
  • Nissei
  • Engle 
  • Yizumi
  • Open architecture Lazers
  • CNC's
  • Pad Printers

 Services provided:

  • Injection Molding
  • Insert molding
  • Laser cutting
  • Assembly and Automation
  • Shoot to ship
  • Fulfillment
  • Machining 
  • Molds for: rubber, plastic, die cast dies, die cast molds
  • Hot stamping
  • Labeling
  • Pad printing
  • Sonic welding

    ISO Certification- recertification in process

       Proprietary Business:  Untangler Pet Products; Hair Doctor Products

      Diane Pietrasik Brand Owner, Managing Director

      Phone: 847-885-2300
      Steven Plastics,Inc. 2125 Stonington Ave, Hoffman Estates, IL 60169