Manufacturing Custom Molded Plastic Components since 1986

Grimm Brothers is a plastics manufacturing company, specializing in custom plastic thermoforming, primarily utilizing the processes of pressure forming plastic, custom vacuum forming and twin sheet thermoforming. These processes are well suited to heavy gauge thermoforming applications, such as enclosures, covers and structural components for medical, industrial and heavy equipment products.

A Leader Among Custom Thermoforming Companies

Although there are many plastic thermoforming companies from which to choose, Grimm Brothers stands out for the quality finish of thermoformed plastic parts as well as their design and engineering team, people who can take your idea for a pressure-formed or vacuum-formed part, get it into production and into your hands quickly.


Custom molded plastic is represented by this custom plastic thermoforming, representing the state of Iowa.
As one of the leading plastic thermoforming companies, Grimm Brothers offers high quality, cost-efficient alternatives to traditional injection molding.

With thermoforming, it is possible to avoid the substantial startup costs and extended time to market associated with injection molding. Many design features and specifications associated with injection molding, such as sharp detail and close tolerances are now possible in high or low volume runs with the Grimm Brothers technically-advanced thermoform processes.

Molded Plastic Components are used by many medical equipment manufacturers.


Whether high-tech medical device housings, rugged heavy equipment parts, or any one of countless other thermoforming applications, Grimm Brothers is ready to produce the parts you need.

Grimm Brothers offers a full range of thermoforming techniques, trimming and secondary operations, as well as world-class design, engineering and production skills. We encourage you to explore our website to learn more about the capabilities and record of accomplishment of Grimm Brothers. Please contact us with any questions that you may have or send us your request for quote.


To better fulfill customer requirements, Grimm Brothers has recently expanded to include INJECTION MOLDING capabilities to its list of thermoplastics manufacturing operations.

So now, from small parts to large parts, from short runs to long runs, simple to multiple part designs, whatever the plastics part you need, whether by thermoforming processes or injection molding, Grimm Brothers will suggest the best process for your project. Call today!


Innovative proprietary products created by the Grimm Brothers design team:
Heavy guage thermoforming application

The first clothes dryer to take energy consumption seriously, BreezeDry brings the freshness of the outdoors into the convenience of the laundry room.

Inovative thermoform plastics product
Ball Baby

Eliminate a delay of your game with the Ball Baby, a fence-mounted holder for softballs and baseballs.

Grimm Brothers Plastics Corporation
One Quality Court
Wapello, IA 52653
Toll Free (888) 85-GRIMM · Phone (319) 523-6000