Sacramento, CA
1. Springboard Manufacturing
Address: 2691 Mercantile Drive, Rancho Cordova, CA 95742
Phone: (916) 853-0717
Website: https://springboardmfg.com/
Email: help@springboardmfg.com
Facility: 150,000 sq. ft.
Services:
Custom injection molding, medical injection molding, cleanroom molding (ISO Class 8), overmolding, insert molding, ultrasonic bonding, micro molding, tooling and mold design, assembly, packaging
Industries Served:
Medical devices, surgical instruments, dental instruments, prosthetics, laboratory equipment, healthcare
Certifications: ISO 13485:2016, UL Registered
Highlight:
Full-service medical device injection molder with dedicated cleanroom facilities providing end-to-end capabilities from design and engineering through assembly, packaging, and sterilization. Springboard was acquired by Currier Plastics in January 2026, expanding their footprint with West Coast presence and strengthening their medical device manufacturing capabilities in the Sacramento region.
2. PRe Plastics, Inc.
Address: 12600 Locksley Lane, Suite 100, Auburn, CA 95602
Phone: (530) 823-1820
Website: https://preplastics.com/
Founded: 1986
Employees: 30 to 60
Facility: 70,000 sq. ft.
Services:
Custom plastic injection molding, product design and engineering, 3D prototyping, precision tool making, injection molding, part assembly, printing, decorating, order fulfillment, metal-to-plastic replacement
Industries Served:
Alternative energy, consumer goods, electric vehicles, medical devices, general industrial
Certifications: ISO 9001:2015 (TUV Rheinland), FDA Device Manufacture License
Highlight:
Nearly 40 years of experience as a full-service custom injection molder in the Sacramento region. Known for tackling difficult design, mold making, and manufacturing challenges with presses ranging from 50 to 610 tons.
3. Rimnetics, Inc.
Address: 3141 Swetzer Road, Loomis, CA 95650
Phone: (916) 652-5555
Website: https://rimnetics.com/
Founded: 1990
Services:
Reaction injection molding (RIM), polyurethane molding, structural parts and enclosures, encapsulation, overmolding, custom tooling design, aluminum mold fabrication
Industries Served:
Medical devices, laboratory equipment, electronics, communications, IT infrastructure, ATM and vending, point of sale, gaming, marine and subsea, defense, building products
Certifications: ISO 9001:2015, ITAR registered
Highlight:
North America’s premier reaction injection molding manufacturer specializing in large, complex polyurethane parts. RIM process offers lower tooling costs than traditional injection molding, ideal for medium volume production of structural enclosures.
Mesa, AZ
1. Pacific Plastic Technology, Inc.
Address: 7717 E Ray Road, Suite 125, Mesa, AZ 85212
Phone: (909) 987-4200
Website: https://plastictech.com/
Email: sales@plastictech.com
Founded: 1973
Facility: 36,000 sq. ft.
Services:
Custom injection molding, assembly and packaging, tooling design and sourcing, secondary operations including sonic welding
Industries Served:
Automotive, aerospace (battery housings), energy storage, power generation, industrial products, firearms (FFL Type 07 licensed)
Highlight:
Family owned company with over 50 years of experience featuring nine all-electric injection molding machines from 90 to 610 tons. One of the few injection molders holding a Federal Firearms License for producing regulated firearm components.
2. Fiesta Plastics, Inc.
Address: 1839 W. 1st Avenue, Mesa, AZ 85202
Phone: (480) 921-2105
Website: https://www.fiestaplastics.com/
Email: sales@fiestaplastics.com
Founded: 1988
Employees: 25
Facility: 20,000 sq. ft.
Services:
Custom injection molding, mold design and building, 3D printing and prototyping, reverse engineering, assembly, secondary operations, micro molding to large complex parts
Industries Served:
General industrial, consumer products, commercial applications
Highlight:
Full-service company with complete in-house tooling and machining facility. Founded when the owner traded his truck title for a molding machine, the company has grown to 18 molding machines with 30+ years of plastics industry expertise on staff.
3. American Plastics Co., Inc.
Address: 6821 North 55th Avenue, Glendale, AZ 85301
Phone: (623) 939-8449
Website: https://americanplasticsco.com/
Founded: 1988
Services:
Custom injection molding, scientific molding, insert overmolding, tooling design, assembly, filling operations, hot stamping, pad printing, heat transfer labeling, packaging, drop shipping
Industries Served:
Pool and spa, construction, electrical, sporting goods, consumer goods, lab products
Certifications: ISO 9001, UL approved
Highlight:
Arizona’s leading ISO certified injection molder providing complete start-to-finish support from design through final packaging. Operates 13 injection molding presses from 55 to 400 tons with a three-tiered quality control system. Located in Glendale, serving the greater Phoenix metro area including Mesa.
Atlanta, GA
1. ADCO Plastics Corporation
Address: 1256 Sandtown Road, Marietta, GA 30008
Phone: (770) 425-1234
Website: https://adcoplastics.com/
Email: Info@ADCOPlastics.com
Founded: 1974
Services:
Custom injection molding, mold building, product design assistance, mold design, material selection, automated and manual assembly, secondary operations, quality assurance, packaging, shipping
Industries Served:
Medical, commercial, industrial, transportation, retail
Certifications: ISO 9001:2015
Highlight:
50 years of experience as Metro Atlanta’s value-add injection molder. Operates 22 injection molding machines from 55 to 750 tons with capabilities for both commodity and engineering grade resins plus thermoplastic rubbers.
2. Underwood Mold Company, Inc.
Address: 104 Dixie Drive, Woodstock, GA 30189
Phone: (770) 926-2465
Website: https://www.underwoodmoldco.com/
Email: sales@underwoodmoldco.com
Founded: 1969
Employees: 130
Facility: 33,000 sq. ft.
Services:
Custom injection molding, mold design and fabrication, in-house tool shop, packaging products manufacturing (aerosol caps, pails, lids), 24/7 automated production
Industries Served:
Packaging, consumer products, industrial, aerosol industry
Highlight:
Over 55 years as a trusted Metro Atlanta provider with an extensive press range from 7 tons to 946 tons. Unique dual focus on custom molding services and proprietary packaging product lines with robotics-enabled round-the-clock production.
3. Accurate Plastics & Mold Co.
Address: 680 Enterprise Drive, Auburn, GA 30011
Phone: (770) 867-6867
Website: https://accurateplastics.net/
Founded: 1991
Employees: 18 to 21
Facility: 40,000 sq. ft.
Services:
Custom injection molding, mold making and design, rapid prototyping, 3D printing, precision machining, assembly, custom packaging, robot end of arm tooling, secondary operations
Industries Served:
Commercial, industrial, general manufacturing
Certifications: ISO 9001:2015
Highlight:
Family owned business with over 30 years of experience and in-house mold making capabilities. RJG certified processors operate a mix of fully hydraulic, hybrid, and electric Arburg and Sumitomo presses from 30 to 440 tons. Located northeast of Atlanta off SR 316.
Notes
This research batch covers three major metro areas with distinct regional manufacturing profiles. Sacramento features a strong medical device focus with Springboard Manufacturing and PRe Plastics, plus specialty reaction injection molding from Rimnetics. The Arizona market centered on Mesa and Phoenix shows diversity ranging from firearms manufacturing at Pacific Plastic Technology to full service capabilities at American Plastics. Atlanta’s injection molding cluster demonstrates mature operations with companies averaging 30+ years in business, led by ADCO Plastics and Underwood Mold with their large press capacities.
All companies listed have active websites and verifiable contact information confirmed through official company sources. Several companies noted serve beyond their immediate metro areas, and three companies (PRe Plastics, American Plastics, Accurate Plastics) are located in nearby cities within 50 miles of the target city center but actively serve those metropolitan markets.
Research conducted January 2026. Verify all information directly with companies before business engagement.