901 Geneva Parkway N

Lake Geneva, WI 53147 USA


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Plastic Injection Molding for Wisconsin

For over 40 years, Midwest Precision Molding (MPM) has served as Wisconsin's leading provider of plastic injection molding. If you can dream it, we can create it. Our Lake Geneva facility is home to some of the most dynamic equipment arrangements in the Midwest; including over 40 injection modeling machines, 11 new Sodick presses, and new automation equipment. 


When it comes to custom injection molds, we're your people. At MPM, we specialize in creating top-of-the-line gear, insert, and bobbin molding. We are Wisconsin's only true custom molder focused on tight tolerance and precision plastic parts. From initial design to post-production, our team is here to guide you every step of the way. There is no project too small or too big. Our onsite tool room is ready to create your plastic injection mold on time and propel your business or project forward. 

Message us today to receive your personalized quote!

What's New with MPM Plastics?

Tight-Tolerance Molder Dips Toe in Extrusion Waters

Custom molder Midwest Precision Molding (MPM) is getting into extrusion. The processor, which runs 40-plus presses in a 65,000-square-foot plant in Milwaukee, Wisconsin, specializes in molding small, difficult tight-tolerance parts such as gears and bobbins. It recently added an extrusion line for tubing from Bausano of Italy to supply an existing customer that was having difficulties with its current supplier.  

Amatrol On-Site

Industrial Tech-Ed Program In this video, we pay a visit to Williams Bay High School in Wisconsin to see what’s happening in its Industrial Tech-Ed program, which gives students hands-on experience with a wide variety of real-world equipment they’ll encounter in modern manufacturing facilities equipped with the latest Industry 4.0 advanced automation technologies.Industrial Tech Ed instructor

BizTimes Future 50 Winner

BizTimes Future 50 WinnerMidwest Precision Molding (MPM) is proud to announce its recent designation as a 2023 Future 50 company by BizTimes Media in partnership with the Metropolitan Milwaukee Association of Commerce.The Future 50 program, now in its 34th year, recognizes privately-owned companies in Southeast Wisconsin that have been in business for at least three years

Local Outreach

Midwest Precision Molding Supports Technology Resources at Williams Bay High School Midwest Precision Molding is honored to support the advancement in technology resources for manufacturing practices at Williams Bay High School. This will allow for kids to learn, grow, and develop skills to prepare them for a stable career while earning certifications, credits, and technical

Coil Winding Bobbins Example - Plasti-Coil

Coil Winding Bobbins

Since MPM's beginning, coil winding bobbins have been at the core of our business. Partnering with hundreds of manufacturers over the years has elevated us to “Experts” in the realm of custom bobbins. Read More....

Terminal Pin Insertion Example - Plasti-Coil

Terminal Pin Insertion

At MPM, not only do we produce millions of plastic injection molded bobbins annually, but provide many secondary operations such as terminal and pin insertion. We operate many specialized machines that makes this process possible. Read More...

Insert Overmolding Example - Plasti-Coil

Insert Overmolding

Plastic insert molding is a custom molding process where plastic is injected into the mold to encapsulate (either fully or partially) a part that was placed into the mold just prior to the injection of plastic. Read More...

Custom Molded Plastics Example - Plasti-Coil

Molded Plastics


At MPM, “custom” is an everyday term in what we achieve for our customers. When it comes to custom plastic molders, we are simply the best!



MPM is a Proud Member of AGMA


Midwest Precision Molding is now a proud member of the American Gear Manufacturers Association. The global network for technical standards, education, and business information for manufacturers, suppliers, and user of mechanical power transmission components.