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Last updated: January 2026
This directory lists 28 blow molding companies across the United States, from job shops to vertically integrated manufacturers.
Buyers in this space are often solving intricate problems related to custom container design, functional components for automotive or medical applications, or lightweighting initiatives. They require suppliers proficient in advanced techniques like multi-layer co-extrusion for barrier properties, precise *parison programming* to optimize material distribution, and managing the *tooling complexity* that comes with intricate part features like handles, threads, or integrated inserts. Mismanagement of these technical details can lead to inconsistent wall thickness, excessive *flash*, or costly post-molding processes.
The blow molding supplier landscape is diverse, ranging from high-volume commodity manufacturers specializing in PET bottles for the beverage industry, to highly specialized technical molders producing complex automotive ducting, industrial bellows, or medical device components. You'll also encounter custom molders who excel at smaller runs, specialized resins, or unique part geometries, often leveraging their engineering expertise for prototyping and product development. Understanding these distinctions is key to matching a supplier's core competency to your specific project requirements, scale, and material needs.
To ensure a successful partnership, buyers should come prepared with detailed 3D CAD models, comprehensive material specifications, annual volume forecasts, and clearly defined critical dimension tolerances. Suppliers, in turn, expect a collaborative approach to DFM, transparent communication regarding quality standards and testing protocols, and a clear understanding of the part's intended application and expected product lifecycle. Providing this upfront information enables accurate quoting, minimizes design iterations, and helps ensure manufacturability.
28 companies nationwide
Axium Packaging Inc. specializes in plastic bottle packaging solutions, utilizing Extrusion Blow Molding, Injection Stretch Blow Molding, and Injection Blow Molding. With 31 facilities and over 4.6 million sq ft of manufacturing space, the company leverages engineering expertise and next-generation technology to deliver agile, adaptable packaging.
Based in Tracy, CA, Central Plastics offers custom plastic manufacturing, including injection molding, custom thermoforming, and Injection Stretch Blow Molding (ISBM). They provide tooling and engineering services for diverse markets such as healthcare, aerospace, and packaging. The company holds ISO 13485:2016 and AS 9100 Rev D certifications.
Based in Clinton, IA, Custom-Pak, Inc. manufactures industrial blow molded parts across six plants utilizing over 200 machines. The company provides advanced blow molding technology, offering design, engineering, mold making, and automation. They specialize in process engineering and finishing for products like packaging, containers, and industrial components.
Based in El Cajon, CA, DaMar Plastics offers comprehensive plastic injection and blow molding solutions. The company specializes in design, mold manufacturing, injection molding, and blow molding services. Serving customers across Southern California, they guide projects from initial vision through to final product delivery.
Based in Baraboo, WI, Flambeau is a custom manufacturer of injection-molded and blow-molded parts, components, and assemblies. Specializing in thermoplastic components, the company offers product and tooling solutions with over 70 years of experience and more than 100 blow molding machines.
Based in Riverside, CA, Hi-Rel Plastics & Molding, Inc. specializes in custom plastic injection molding and blow molding services. With 40+ years of experience, they assist major industries from part evaluation to prototyping. The company is ISO 9001:2015, AS 9100 Rev D, and 13485:2016 certified, operating an ISO 7 clean room.
Based in Blacklick, OH, Hub Plastics specializes in blow molding stock and custom bottles and jars since 1971. They utilize HDPE, LDPE, PP, PET, and post-consumer resins. The company serves food, pharmaceutical, agricultural, beverage, automotive, and personal care industries, also offering custom packaging design.
Based in Aurora, OH, Lerner Molded Plastics provides custom blow molding services for plastic parts and products. With extensive experience, they produce components from a wide range of plastics for diverse industries. The company also offers secondary services, including assembly, decorating, and complete packout.
Based in Lake Elsinore, CA, Mold Vision Inc. manufactures blow molds for cosmetic, food, beverage, medical, auto, and aerospace industries. They provide comprehensive services from product design and mold engineering to manufacturing and maintenance, specializing in extrusion, reheat stretch, and injection stretch blow molds.
Based in Canton, OH, Paarlo Plastics, Inc. produces custom blow-molded parts using standard and engineering-grade thermoplastics. With over 40 years of experience and an 80,000-square-foot facility, the company focuses exclusively on blow molding plastic components. They handle projects from design to delivery.
Based in Bowling Green, OH, Pinnacle Plastic Products manufactures custom blow molded plastic products. They operate a facility with nine presses and 17 accumulator heads, offering full product assembly, engineering assistance, and secondary operations. The company serves automotive, medical, and consumer markets.
Based in Simi Valley, CA, Poly-Tainer, Inc. specializes in custom blow molding plastic containers. They manufacture PET and PE containers in both stock and custom colors, serving diverse industries. The company operates two manufacturing facilities in the Western (CA) and Eastern/Midwest (IN) regions of the United States.
Based in Anaheim, CA, Precision Plastics Packaging Co. manufactures and decorates stock and custom plastic bottles. They provide extrusion blow molding and injection stretch blow molding services for HDPE and PETE bottles, specializing in cosmeceutical and FDA approved packaging solutions.
Based in Gladewater, TX, Quantum Plastics manufactures custom components using both blow and injection molding processes. Their Gladewater Division specializes in producing automotive safety restraint system covers for major worldwide automotive suppliers.
TSI Products, Inc. provides expert-level blow molding manufacturing for hollow plastic parts from its 150,000-square-foot facility in Arlington, TX. They offer an affordable alternative to injection molding, producing high-volume, quality components with lower tooling costs for various household and automotive applications.
Based in Valencia, CA, Valencia Plastics provides custom plastic injection and blow molded products. They specialize in high-volume HDPE wide mouth containers and canisters, using up to 100% PCR and food-grade Eco Prime/Envision resins.
Western Case, Inc. provides custom blow molding services and manufactures plastic carrying cases from its Riverside, CA facility. The company offers turn-key project management, serving automotive, construction, consumer goods, food, and medical sectors. They focus on Just-In-Time production and on-time delivery for diverse blow molded solutions.
Based in Tempe, AZ, Molded Devices Inc. offers custom plastic blow molding services as part of its extensive contract manufacturing capabilities. With over 50 years of experience, the company provides engineering and tooling for OEMs across medical, industrial, and aerospace sectors. Additional services include injection molding, dip molding, and tube extrusion.
Based in Brookfield, MO, Apex Plastics specializes in blow molding manufacturing. The company produces custom and standard plastic products, with a focus on PET plastic juice bottles. They are ISO 9001:2015 Certified, providing professional manufacturing services for various industrial and commercial needs.
Based in Elyria, OH, Chapin Custom Molding provides extrusion and dual head blow molding services, handling products from 0.5 to 35 pounds with platen sizes up to 60"W x 90"H. They offer turnkey solutions, including assembly, warehousing, and drop shipping for diverse industrial applications.
Based in Neptune City, NJ, Flexcraft specializes in custom blow molding and plastic injection molding manufacturing. With over 50 years of experience, this privately owned company consistently reinvests in advanced technology to scale capabilities and provide dependable production for its customers.
Based in Mount Pleasant, IA, Lomont Molding LLC specializes in plastic molding, providing blow molding services. They form precision hollow plastic components and containers, suitable for high-volume production and durable end-use applications. The company also offers injection molding, structural foam, and nitrogen gas molding, serving clients across the U.S.
Based in Georgetown, TX, R&D Molders provides custom blow molding, injection molding, and engineering molding services. They offer secondary services and produce solutions for diverse sectors including Medical, Industrial, Consumer Goods, GSA/DOD, Home & Garden, and Energy industries.
Based in Fort Worth, TX, Superior Plastics specializes in custom plastic injection molding and provides blow molding services. The company utilizes a 20-ton blow molding press, alongside extensive injection molding equipment. They serve industrial and commercial clients across electronics, military, oil field, and telecommunications sectors, holding ISO 9001:2015 certification.
Based in Houston, TX, Texas Injection Molding manufactures custom plastic blow molding applications. They specialize in producing bottles, containers, and other hollow parts, especially for situations where stock options are unsuitable or filling is done off-line. They use blow molding machines, raw plastic material, and custom molds.
Based in Holyoke, MA, Universal Plastics offers custom extrusion blow molding services. They produce parts from 18 grams to 40 pounds for medical, automotive, waste management, and recreational equipment, utilizing materials like HDPE, PP, PC, and PETG. Their 120,000 sq. ft facility also provides injection molding.
Based in Fontana, CA, VPET USA, LLC provides blow molded PET and HDPE packaging solutions. They specialize in flexible, sustainable bottle manufacturing using multi-faceted blow molding processes, offering a diverse portfolio of PET and HDPE bottles and jars. Capabilities include custom designs and over 130 stock items.
Based in Winfield, KS, Western Industries Plastic Products, LLC provides custom blow molding services with over 38 years of expertise. They specialize in producing blow molded products of various shapes and complexities. The company offers design assistance and utilizes state-of-the-art technology within their 500,000 square foot manufacturing facility.
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| Type | Best For | Typical MOQ |
|---|---|---|
| Boutique/Custom Blow Molder | Prototypes, small-batch production, highly complex geometries, specialized engineering resins, unique functional requirements. | 500 - 10,000 units |
| General-Purpose EBM Manufacturer | Mid-to-high volume production of industrial containers, automotive ducts, toys, and other hollow parts using common resins (HDPE, PP). | 10,000 - 100,000+ units |
| High-Volume IBM/SBM Specialist | Mass market packaging like clear PET beverage bottles, pharmaceutical containers, and cosmetic bottles where clarity and precision are critical. | 100,000 - Millions of units |
| Technical Blow Molder (Certified) | Automotive components (e.g., HVAC ducts, fluid reservoirs), medical devices (e.g., bellows, reservoirs), or other applications requiring tight tolerances, specific certifications (IATF 16949, ISO 13485), and specialized materials. | 5,000 - 500,000+ units |
Material choice is paramount. EBM is highly versatile, accommodating a wide range of thermoplastics like HDPE, PP, PVC, and engineered resins, often used for larger, more complex parts. IBM is typically preferred for smaller, high-precision containers and bottles using resins like HDPE, LDPE, PP, and PS, especially when consistent neck finishes are critical. SBM is almost exclusively used for PET and PP, leveraging the material's ability to stretch and orient for enhanced strength, clarity, and barrier properties, making it ideal for clear beverage and food bottles. A supplier's expertise in handling your specific resin within the appropriate process is non-negotiable.
Achieving consistent wall thickness is a primary DFM challenge in blow molding. Key considerations include: avoiding sharp corners and abrupt changes in geometry, incorporating appropriate draft angles, and understanding how the *parison* expands into the mold. Suppliers with strong DFM capabilities will utilize advanced *parison programming* to control material distribution. Managing *flash*—the excess material squeezed out at the parting line—is also crucial. Good tool design minimizes flash, but secondary operations like deflashing, trimming, or reaming are often necessary. Factor these operations, and their associated costs and potential for cosmetic impact, into your design and budget from the outset.
For medical devices, look for ISO 13485 certification, which specifies quality management systems for medical device manufacturing. Additionally, inquire about biocompatibility testing (e.g., USP Class VI for plastics) and their ability to operate in certified cleanroom environments (e.g., ISO Class 7 or 8) to prevent contamination. For food and beverage packaging, FDA compliance is mandatory, and certifications like BRCGS Packaging Materials Global Standard demonstrate adherence to rigorous safety and quality standards. Always confirm that their material handling, processing, and post-molding operations meet these specific industry requirements.