Des Moines, IA
1. Engineered Plastic Components, Inc.
Address: 4500 Westown Parkway, Suite 277, West Des Moines, IA 50266
Phone: (515) 224-0121
Website: https://epcmfg.com/
Services:
Custom injection molding, product development, engineering support, multi-location manufacturing
Industries Served:
Automotive, industrial, consumer products, electronics
Highlight:
Engineered Plastic Components maintains corporate headquarters in West Des Moines while operating manufacturing facilities across multiple locations including Anderson and Stratford (Indiana), Ormond Beach (Florida), and Reynosa (Mexico). This multi-site structure provides customers with geographic flexibility, risk mitigation, and capacity scalability. EPC focuses on product development partnerships, working closely with customers from initial concept through production launch.
2. Hawkeye Molding
Located in Roland and Albia, IA (serving Des Moines metro area)
Address: 614 East Street, Roland, IA 50236 (Primary); Albia, IA (Secondary)
Phone: (515) 388-4769
Website: https://hawkeyemolding.com/
Services:
Custom injection molded parts and products, tooling services, assembly, secondary operations
Industries Served:
Appliance, agriculture, furniture, industrial, lighting, manufacturing components
Certifications: ISO 9001:2015
Highlight:
Iowa-made custom injection molding specialist operating two facilities in the Iowa heartland. Hawkeye Molding’s Roland facility (approximately 40 miles north of Des Moines) and Albia facility provide geographic redundancy and capacity flexibility. ISO 9001:2015 certification demonstrates quality commitment. Their industry focus on appliance, agriculture, and furniture sectors aligns with Iowa’s strong agricultural equipment and manufacturing base. Hawkeye emphasizes their Iowa roots and domestic manufacturing capabilities.
3. Bruin Manufacturing Company
Located in Marshalltown and Newton, IA (serving Des Moines metro area)
Address: 607 North 4th Avenue, Marshalltown, IA 50158 (Primary); 200 East 12th Street South, Newton, IA 50208 (Secondary)
Phone: (641) 752-5433
Website: https://bruinmfg.com/
Founded: 1949
Services:
Plastic injection molding, mold design and building (in-house), product design assistance, manual and automatic assembly, ultrasonic welding, specialty packaging
Industries Served:
Industrial, consumer products, agriculture, automotive
Highlight:
Family-owned plastic injection molding company operating from the same Marshalltown location since opening in 1949, making them one of Iowa’s oldest injection molders with over 75 years of continuous operation. Originally a machine shop that transitioned to plastic injection molding in the late 1950s. A second production location opened in Newton in 2016 for risk mitigation and growth. Bruin designs, builds, and maintains customer molds on-site with lifetime warranty at no additional cost. Their full-service tool room enables immediate production issue resolution, reducing costs and turnaround times compared to outsourced tooling.
4. Lomont Molding LLC
Located in Mount Pleasant, IA (serving Iowa statewide)
Address: 2597 Lomont Drive, Mount Pleasant, IA 52641
Phone: (319) 385-2574
Website: https://lomont.com/
Founded: 1982
Services:
Custom plastic molding (injection and blow molding), plastic over-molding, gas-assist injection molding, in-mold decorating, structural foam molding
Industries Served:
Industrial, agriculture, material handling, consumer products
Highlight:
Leading Iowa plastic molding manufacturer founded in 1982 and headquartered in Mount Pleasant, operating 24/7 to deliver solutions nationwide. Lomont has developed proprietary product lines including Paragon Products and Lomont IMT through continuous growth and innovation. Their capabilities extend beyond standard injection molding to include gas-assist molding (creating lightweight hollow structures), plastic over-molding (TPE bonded to rigid plastic), and in-mold decorating (permanent label application during molding). Recent integration of R&D Molders brings additional expertise in durable molded plastic containers.
5. Eclipse Manufacturing Company
Located in Ankeny, IA (Des Moines suburb)
Address: Ankeny, IA
Phone: (515) 289-7111
Website: https://www.eclipsemfgco.com/
Services:
Custom injection molding of thermoplastics, horizontal molding, insert molding, assembly
Industries Served:
Industrial, consumer products, agricultural equipment
Highlight:
Custom injection molder serving the Des Moines metro area from their Ankeny location (approximately 10 miles north of downtown Des Moines). Eclipse Manufacturing provides horizontal injection molding and insert molding capabilities with a commitment to quality, customer satisfaction, and timely delivery. Their focus on building solid business relationships through reliable service has established them as a trusted local supplier for Iowa manufacturers requiring custom thermoplastic components.
6. Iowa Rotocast Plastics
Located in Decorah, IA (serving Iowa statewide)
Address: 1000 Mechanic Street, Decorah, IA 52101
Phone: (563) 382-8443
Website: https://www.iowarotocast.com/
Founded: 1971
Services:
Rotational molding (rotomolding), custom molding solutions
Industries Served:
Agriculture, material handling, industrial, outdoor recreation
Highlight:
While specializing in rotational molding rather than injection molding, Iowa Rotocast Plastics offers an alternative manufacturing process for customers requiring hollow, seamless plastic parts. Rotomolding provides cost-effective solutions for large parts and lower volumes where injection molding tooling costs would be prohibitive. Their wide range of products and best-in-class service have established them as a leader in custom rotomolded plastics throughout the Midwest.
Notes
Iowa’s plastic molding industry reflects the state’s agricultural and manufacturing heritage. Companies like Hawkeye Molding and Lomont Molding emphasize their Iowa roots and focus on industries central to the state’s economy including agriculture, appliances, and industrial equipment.
Several Iowa injection molders operate multiple facilities for capacity and risk mitigation. Bruin Manufacturing added their Newton location in 2016, Hawkeye Molding operates facilities in Roland and Albia, and Engineered Plastic Components coordinates manufacturing across multiple states and Mexico from their West Des Moines headquarters.
The presence of family-owned operations with multi-generational history distinguishes Iowa’s injection molding sector. Bruin Manufacturing’s 75+ years of continuous operation from the same location demonstrates the stability and longevity possible in Iowa’s manufacturing environment.
Specialty capabilities available in Iowa include Lomont Molding’s gas-assist and in-mold decorating technologies, and Iowa Rotocast’s rotational molding alternative for hollow large-part applications. This diversity of manufacturing processes allows Iowa to serve varied customer requirements beyond standard injection molding.
Des Moines’ central location within the continental United States provides logistics advantages for serving customers nationwide, with Interstate 80 and Interstate 35 providing direct highway access to major markets in all directions.
Research conducted January 2026. Verify all information directly with companies before business engagement.