San Antonio, TX
1. Nolato San Antonio
Address: 901 Paulsun Street, San Antonio, TX 78219
Phone: +1 210 225 1516
Website: https://www.nolato.com/en/Group-companies/Nolato-San-Antonio
Services:
Precision injection molding, product assembly, filtration manufacturing, custom filter core products
Industries Served:
Medical devices, healthcare, automotive, filtration
Certifications: ISO 9001, ISO 14001, ISO 13485, IATF 16949
Highlight:
Nolato San Antonio is part of the Swedish Nolato Group and serves as the company’s main filtration manufacturing center in the United States. The facility specializes in precision injection molding for demanding applications, with particular strength in medical device components and automotive filtration systems. Their multiple ISO certifications demonstrate commitment to quality across medical and automotive standards.
2. All-Plastics LLC (Kerrville Facility)
Address: 200 Holdsworth Dr., Kerrville, TX 78028 (serving San Antonio metro area)
Phone: (830) 896-6464
Website: https://www.all-plastics.com/
Founded: 1964
Employees: 51-200
Services:
Scientific decoupled molding, prototyping, tool building, precision injection molding, in-mold labeling, assembly, packaging, quality lab services, 3D printing
Industries Served:
Pharmaceuticals, medical devices, industrial, packaging, consumer products
Certifications: ISO 13485:2016, UL Certified
Highlight:
All-Plastics is a leader in scientific injection molding with over 50 years of experience. Their Kerrville facility serves the San Antonio metro area with advanced capabilities including eDART and pressure sensor technology for quality control. The company is known for achieving accuracy of +/- 25 microns and provides full service from design through turnkey manufacturing.
3. Aire Plastics
Address: 132 Industrial Dr., La Vernia, TX 78121 (17 miles from San Antonio)
Phone: (830) 779-2289
Website: https://www.aireplastics.com/
Email: contact@aireplastics.com
Founded: 1989
Services:
Custom injection molding, tooling, product design and engineering, assembly and packaging, product development consulting
Industries Served:
Aerospace, healthcare, biosciences, renewable energy, technology, consumer products, startups
Highlight:
Aire Plastics is located approximately 17 miles from San Antonio and has served the region since 1989. The company specializes in partnering with entrepreneurs and small businesses, offering injection molding services even for small product runs. The Post family, owners of Aire Plastics, have deep roots in the San Antonio area dating back to before the Texas Revolution, and the company actively participates in the local business community.
San Diego, CA
1. Advance Plastics
Address: 225 West 30th St., National City, CA 91950 (San Diego County)
Phone: (619) 477-1893
Website: https://advanceplastics.com/
Email: sales@advanceplastics.com
Founded: 1978
Services:
Custom injection molding, mold design, tool room services, low to high volume production
Industries Served:
Aerospace, medical, general manufacturing
Certifications: AS9100D Certified
Highlight:
Advance Plastics has operated in San Diego County since 1978 with a clear mission: producing high quality parts at competitive prices. The company operates injection molding machines ranging from 35 to 1,000 tons of clamping force and offers a lifetime guarantee on molds built by their trusted supplier IMS. Their AS9100D certification makes them particularly well-suited for aerospace applications.
2. DaMar Plastics
Address: 1035 Pioneer Way, Suite 160, El Cajon, CA 92020 (San Diego County)
Phone: (619) 283-2300
Website: https://damarplastics.com/
Email: sales@damarplastics.com
Founded: 1970s (50+ years in business)
Services:
Injection molding, blow molding, mold manufacturing, sustainable solutions (green resins), assembly, secondary operations, value-added services
Industries Served:
Healthcare, consumer products, OEM, construction, packaging
Highlight:
DaMar Plastics has been in business for over 50 years and is known for its complete in-house mold manufacturing and repair capabilities. The company distinguishes itself with a strong commitment to sustainable solutions, being on the leading edge of utilizing green, sustainable resins. They source all materials and production within the United States and have built long-term relationships with clients including Walmart, Cell Biolabs, and multiple medical device companies.
3. NUBS Plastics Inc.
Address: 991 Park Center Dr., Vista, CA 92081 (San Diego County)
Phone: +1 (760) 598-2525
Website: https://www.nubsplasticsinc.com/
Email: sales@nubsplastics.com
Founded: Mid-1990s
Services:
Plastic injection molding, mold making, design and engineering, material selection consulting, quality control
Industries Served:
Medical, aerospace, automotive, irrigation, electronics, military, consumer products
Certifications: ISO 9001:2015
Highlight:
NUBS Plastics has established a strong presence in precision injection molding for diverse industries including aerospace and irrigation. The company’s engineering team includes graduates from nationally recognized universities with specialties in plastics engineering. They maintain a particularly large presence in the irrigation sector, manufacturing fittings, valves, emitters, and stakes for high-volume, long-run production.
Dallas, TX
1. Metro Custom Plastics
Address: 615 109th Street, Arlington, TX 76011 (serving Dallas/Fort Worth metro area)
Phone: (817) 640-5646
Website: https://www.metrocustomplastics.com/
Email: webleads@metrocustomplastics.com
Founded: 1972
Services:
Plastic injection molding, outsource molding, assembly, CNC cutting, private labeling, kitting, packaging, warehouse and delivery, part design efficiency, mold design and tooling, prototyping, reshoring and mold transfers
Industries Served:
Oil and gas, commercial construction, residential construction, transportation, pest control, marine, filtration
Highlight:
Metro Custom Plastics has over 50 years of injection molding expertise. Located in Arlington, they are centrally positioned within the Dallas/Fort Worth metroplex. The company operates machines with clamping forces ranging from 50 to 1,000 tons and can accommodate molds with up to 64 cavities. They have developed a strong reputation in the oil and gas sector, manufacturing plastic thread protectors and components designed to withstand extremely corrosive and high-heat environments.
2. Meridian Products Corporation
Address: 11262 Leo Ln., Dallas, TX 75229
Phone: (972) 484-7300
Website: https://meridianproductscorp.com/
Email: info@meridianproductscorp.com
Founded: 1976
Services:
Custom injection molding, insert and over molding, engineering resin molding, metal replacement molding, biodegradable resin molding, tooling and design, rapid prototyping, assembly and sub-assembly, post-molding decorating (vacuum metallization, painting, EMI/RF shielding), logistics
Industries Served:
Aerospace and transportation, electronics, medical, consumer, automotive
Certifications: ISO 9001:2015
Highlight:
Meridian Products Corporation was originally founded in 1976 to manufacture a patented industrial air/electronic welding tool for AT&T and Bell Systems Companies. Today, the company has over 40 years of leadership in custom injection molding and offers comprehensive turnkey services. They specialize in materials including ABS, acetal, acrylic, nylon, PEEK, PET, polypropylene, polycarbonate, polyester, polyurethane, and thermoplastic elastomer, and are known for their biodegradable resin molding capabilities.
3. All-Plastics LLC (Addison Facility)
Address: 15700 Midway Road, Addison, TX 75001 (Dallas suburb)
Phone: (972) 239-2686
Website: https://www.all-plastics.com/
Founded: 1964
Employees: 51-200
Services:
Scientific decoupled molding, prototyping, tool building, precision injection molding, in-mold labeling, assembly, packaging, design analysis, automation, 3D printing, full range secondary operations
Industries Served:
Pharmaceuticals, medical devices, industrial, packaging, consumer products
Certifications: ISO 13485:2016, ISO 9001, UL Certified
Highlight:
All-Plastics’ Addison facility serves as the company’s primary Dallas-area location, complementing their Kerrville (San Antonio) operation. With over 50 years of experience, the company has built a reputation as a technology-driven leader in scientific injection molding. Their analytical engineers offer expertise backed by engineering centers, automation capabilities, and a full-service quality lab and tool room. The company is particularly strong in pharmaceutical and medical device manufacturing.
Notes
Research across these three major Texas and California cities reveals a robust plastic injection molding industry with companies ranging from family-owned regional specialists to facilities owned by international corporations. San Antonio’s manufacturing base benefits from proximity to the aerospace and medical device industries, with companies like Nolato San Antonio holding multiple ISO certifications including IATF 16949 for automotive. San Diego County shows strength in aerospace-certified manufacturing, with Advance Plastics’ AS9100D certification positioning them for defense and aviation contracts. The Dallas/Fort Worth metroplex demonstrates particular expertise in oil and gas industry applications, with Metro Custom Plastics serving this demanding sector for over five decades. All-Plastics operates facilities in both Dallas and San Antonio, providing scientific molding capabilities across the Texas Triangle. Companies were selected based on verified websites, confirmed physical addresses, and documented injection molding capabilities as core services.
Research conducted January 2026. Verify all information directly with companies before business engagement.