Custom Injection Molding
Crafted with Precision. Molded for Your Success.
Injection molding customized to your specs, your timeline, and your expectations.
Partnership for the Products You Need
At Mission Plastics, we don’t just mold parts. We build better products.
No matter what your molding needs are, you can have access to nearly 60 years of hands-on experience, and a team that knows its craft inside and out. From simple to challenging and complex parts, we produce high quality plastics that are delivered on-time.
As a part of the Peterson Manufacturing family we provide more than just plastics.
What our customers are saying

We’ve been working with Mission Plastics for over 15 years, and their consistency, professionalism, and product quality have been amazing. Their team is responsive, reliable, and truly committed to meeting our needs. We’ve come to rely on them not just as a supplier, but as a trusted partner in our operations.
Sarah Brown
Buyer,
Milbank

I had the distinct pleasure of working with Dennis and Joel for several years, and I can’t speak highly enough of their dedication and ingenuity. Mission Plastics consistently impressed me with their relentless pursuit of innovative solutions—especially when it came to molding complex components and exploring new protective coating processes. Their commitment to going above and beyond truly sets them apart in the industry.
Director of Design and Engineering,
Global Manufacturer

In my prior Design Engineering Manager role, Mission Plastics added significant value through their industry expertise and innovation. Whether we were collaborating on a New Product Introduction or VAVE project, their team went above and beyond to provide a finished product that met, and usually exceeded, our expectations.
Michael Ranta
Engineering Manager,
Fortune 500 Company
Smart Technology.
Smarter Results.
No matter which industry you represent or what application you seek, you’ll find a solution in both of our 100,000-square foot manufacturing facilities and on-site tool shop. Among our impressive array of production equipment is some of the world’s most sophisticated industrial technology. And with our MRP and scheduling tools, our quality systems, and deeply experienced staff we will get you quality parts on time.
Industries
We Serve
Whether you’re managing supply chains, sourcing components, refining part designs, we get how complex your job is. That’s why we deliver precision-molded parts with the reliability, speed, and flexibility you need to keep the line open and get your products to market on time. Our proven performance spans a wide range of applications and industries, including consumer products, industrial applications, lawn & garden, lenses and optics, and more.


Meet Your
Green Goals
Discover our locations in Missouri and Arkansas designed for faster delivery and a smaller carbon footprint. Our sustainability processes include returnable packaging systems that minimize single-use waste, and production protocols that reduce scrap and excess.
- Central location in the US to reduce shipping
- Replaceable Packaging
- Improve design to reduce part weight
- Reducing plastic going to landfill
- Recycling Initiatives
- Improve Quality reducing waste
- Partnering with our customers on their green initiatives
Who We Are
As part of the Peterson Manufacturing family, we bring financial stability and deep cross-industry expertise to your project. At our ISO-certified facilities, we simplify your project by offering in-house design, tooling and molding expertise in one place. Partner with us for customized design, innovative solutions, and straight answers from engineers who know your world.

The Right Part Starts with the Right Partner
Connect with our team to talk about what you need and how we can build it.




