MFG Manufacturer Directory

Find the right manufacturer for your custom parts.

Colonial Engineering, Inc.

Portage, Michigan


Colonial Engineering, Inc. has been in the custom injection-molding business for over 28 years. Our facilities in Portage and Benton Harbor, MI are ISO-9001 certified. Colonial specializes in PVC, CPVC, Noryl, PolyPro, PE, and is equally competent with many other materials. Press sizes range from 65 Ton to 2,000 ton. We also perform insert molding, post-molding CNC machining, tapping, decorating and sub-assembly. From design stage, through molding and secondary operations, you can look to Colonial for quality and dependability. We are centrally located between Chicago and Detroit near I-94, for competitive regional shipping.

DK-Metals, LLC

Westchester, Illinois

Job Shop / Contract Manufacturer


DK-Metals is an integrated solution's supplier for Castings, Forgings, Stampings and Machined Components. Our headquarters is based in the Detroit metro area. Our Detroit office is staffed with American engineers and support staff who service our domestic customers. All manufacturing takes place in Nanjing, China at our parent company Dongkun Metals. We operate our own factories to ensure full control over quality and eliminate the need for middleman markup. We operate lean to keep our overhead costs low. All purchase orders, invoicing and payments go directly to DK-Metals USA, giving you peace of mind in working with an American company. We take care of all correspondence with the factory, so you do not have any late night phone calls or emails. We are committed to quality control and customer satisfaction. We guarantee all your parts will be made to your specifications. Please visit our website for more information.

Integrity Mold Design

Portage, Wisconsin


Injection mold design plastic injection molds part design Mold flow analysis liquid Injection molds (LIM) Hot runner systems Cold runner systems (LIM) Transfer molds (rubber) slide action collapsible cores prototypes production Solidworks Certified Professional

Penda Corporation

Portage, Wisconsin


At Penda, market-leading truck bedliners are just the beginning of the great product possibilities we can help you bring to life through heavy-gauge thermoforming. From the sophisticated molded-in-color vehicle components to smart solutions for industries as diverse as water management, the thermoforming experts at Penda deliver: Impeccable quality Excellent aesthetics Efficient prototyping Faster lead times Low tooling costs These are the kinds of results made possible by over three decades of experience as a trusted, ISO/TS 16949 certified, Tier 1 supplier and partner to leading OEMs around the world. And they're only the beginning of the advantages you gain when you work with us. Because the challenges you and your customers face are only getting tougher, we're not about to let up in advancing your success. That's why, every day, our people are applying their experience—in materials research, product development, cleanroom processing and other advanced techniques—and testing the limits. Working with customers in an increasing array of demanding markets, we're creating exciting new thermoformed products you may never have thought possible. Through collaborative engineering, refined processes, a wide range of value-added capabilities and tireless commitment, we're cutting time and costs while maximizing quality. Whatever your application, today's thermoformed plastics are full of possibilities. Nobody makes them a reality like the people of Penda.

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