Westec Plastics

What Westec Plastics does

Westec Plastics Corporation is a privately held, ISO 13485:2016 certified custom plastic injection molder founded in 1969 and headquartered in Livermore, California. The company operates 23 injection molding machines ranging from 28 to 610 US tons (including 3 two-shot machines) running 24/7, supported by an in-house tool room with CNC, EDM, surface grinding, and laser engraving; ISO Class 6, 7, and 8 clean rooms (989 sq ft Class 8 hard-wall injection molding room plus Class 6 and Class 7 secondary operations rooms); Mantle P-200 metal 3D printing for steel tooling inserts in P20 and H13; and metrology including Keyence IM-7030T and Micro-Vu Excel 652UC CMM with SPC data collection. Specialized capabilities include scientific injection molding, two-shot and micro injection molding, DNA-free molding, and ISO 18385-compliant forensic DNA molding.

The company's revenue model is B2B contract manufacturing sold on a quote-based, RFQ-driven basis with multi-year program engagements. Revenue streams include injection molding services, in-house mold building and tool repair (including 3D printed steel inserts), and secondary operations (pad/roll printing, vibration and ultrasonic welding, laser engraving, hot stamping, heat staking, secondary CNC machining, assembly, and packaging). The go-to-market is direct sales to enterprise OEMs with complex regulated requirements, supported by LinkedIn presence, technical content marketing, and trade association memberships (MAPP, AMBA, CMTA).

Westec serves medical and biotech as its primary vertical (medical devices, pharma packaging, biotech consumables, DNA-free test cartridges, microfluidics) under ISO 13485:2016, with additional exposure to aerospace and defense, electronics, consumer products, baby care, veterinary, and sports/recreation/entertainment. Materials include engineering grades such as PEEK, Polysulfone, and Ultem. Leadership is long-tenured: CEO Paul Biery; President Tammy Barras (28 years at the company, President since January 2016); VP of Finance Tina Scheck (since 2002); Quality Manager Lucero Castro (led the 2017 ISO 13485:2016 certification); and Engineering Manager Rob Zimmerman (25+ years in plastics). Ownership appears to be founder/management-owned with no disclosed institutional investors, parent company, or M&A activity.

Name

Westec Plastics

Legal name

Westec Plastics Corporation

Website

https://westecplastics.com

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

51–100 employees

Short description

Westec Plastics is a privately held, ISO 13485:2016 certified custom plastic injection molder founded in 1969 in Livermore, California, serving medical, biotech, aerospace, and other regulated OEMs with turnkey molding, in-house tooling, clean rooms, and 3D printed steel tooling.

Ownership category

akta.pro rank

Product category

Custom Plastic Injection Molding (Contract Manufacturing)

NAICS

Plastics Product Manufacturing (3261), Industrial Mold Manufacturing (333511), All Other Plastics Product Manufacturing (326199)

SIC

Plastics Products, Nec (3089), Miscellaneous Plastics Products (3080)

akta.pro primary industry

Medical & Life Sciences Injection Molding (Devices, Diagnostics, Cleanroom) (IMANAFAC)

akta.pro secondary industries

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ), Industrial & Machinery Injection Molded Components (Gears, Wear Parts) (IMANAFAF)

Keywords

• Plastic injection molding
• Contract manufacturing
• Medical device molding
• Clean room manufacturing
• Mold building

Headquarters

HQ city

Livermore

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Injection Molding Services: Contract manufacturing for precision plastic injection molding with clean room capabilities. Revenue generated from production runs ranging from prototype to high-volume manufacturing. Services include scientific injection molding, two-shot molding, and micro molding.
2. Tool Building and Maintenance: In-house mold building services including prototype inserts, production tooling, repairs, and modifications. 3D printed steel inserts using Mantle P-200 technology.
3. Secondary Operations: Post-molding services including pad printing, roll printing, vibration welding, ultrasonic welding, laser engraving, hot stamping, heat staking, CNC machining, assembly, and packaging.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Westec Plastics is a turnkey custom plastic injection molder offering in-house mold building, precision injection molding across 23 machines (28–610 US tons, including 3 two-shot units), ISO Class 6/7/8 clean room manufacturing, and integrated secondary operations (pad printing, welding, laser engraving, assembly, packaging). The company serves regulated industries—especially medical devices, biotech, and aerospace/defense—with ISO 13485:2016 certification, DNA-free molding, micro molding, and advanced quality inspection.

Product overview

Westec Plastics is a contract manufacturer offering turnkey plastic injection molding services. The core offering combines plastic injection molding with in-house mold building capabilities, supported by comprehensive secondary operations (pad printing, welding, assembly, packaging) and clean room manufacturing environments (ISO Class 6, 7, and 8). Specialized capabilities include 3D printed tooling using Mantle P-200 metal printing, two-shot injection molding, micro injection molding, and DNA-free injection molding. Quality control is integrated throughout production using advanced inspection equipment and SPC software. The company serves medical, aerospace, electronics, consumer products, and other regulated industries.

Differentiator

Problem solved

Functional benefit

Products and services

• Plastic Injection Molding

Quantifiable outcome

• Lead time reduction from 12 weeks to 2-4 weeks for tooling using 3D printed steel inserts
• +2 more outcomes

Named customers3 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Mantle 3DcoreTechnology or Integration · 14 April 2023Mantle 3D provides metal 3D printing technology specifically designed for injection molding tooling. Westec uses Mantle's P-200 printer to produce steel cavities and cores in P20 and H13 materials, reducing tooling lead times from 12 weeks to 2-4 weeks. Partnership enables Westec to complete 75-95% of tool inserts in-house.
• Rapid RoboticscoreTechnology or Integration · 1 February 2020Rapid Robotics provides collaborative robots (cobots) for automation in Westec's manufacturing operations. Partnership includes programming, fixtures, and planning support. Westec deployed cobots named Melvin and Kim for secondary operations, pad printing, and 2-shot injection molding cells. Deployment achieved approximately $60,000 annual savings per cobot.
• MAPP (Michigan Aerospace Manufacturers Association)minorOthersTrade association membership for aerospace manufacturing industry visibility and networking.
• AMBAminorOthersTrade association membership for manufacturing industry visibility.
• CMTA (California Manufacturing Technology Association)minorOthersRegional manufacturing association membership for California-based manufacturers.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• West Pharmaceutical Services: Global manufacturer of pharmaceutical packaging, drug delivery components, and medical device parts using precision injection molding. Overlaps with Westec on regulated medical/biotech molded components but at much larger scale and with proprietary product IP.
• AptarGroup: Global supplier of dispensing systems, drug delivery devices, and pharmaceutical packaging with significant injection-molded medical components. Adjacent broader incumbent that competes for medical device molding programs at higher volume.

Direct peers

• Plastikon Industries: Custom injection molder with medical, diagnostics, and industrial customers, operating Class 7/8 clean rooms and offering in-house tooling. Comparable end markets and cleanroom-based medical molding value proposition.
• Teamvantage: Custom injection molder with medical device and industrial customers, offering in-house tooling, cleanroom molding, and assembly. Comparable in tooling-to-finished-part scope and engineering materials capability.
• Advanced Molding Technologies: Custom injection molder providing engineering-grade and high-precision plastic parts, including medical and aerospace applications. Comparable on precision molding, engineering materials, and regulated customer base.
• Tessy Plastics: Custom injection molder and contract manufacturer with deep medical device, diagnostics, and consumer products exposure. Operates multiple facilities and offers cleanroom molding, closely mirroring Westec's medical-led custom molding model.
• Protolabs: Digital-first custom injection molder serving low-volume prototyping through production, including regulated medical parts. Closest comparable in custom injection molding services with overlap on speed-to-market, though Protolabs is materially larger and more automated in quoting.
• MMI Engineered Solutions: Custom precision injection molder serving medical, industrial, and electronics customers with engineering resins and cleanroom options. Comparable on engineering material focus (PEEK, Ultem) and regulated-industry customer mix.
• Medbio: Medical-focused injection molding and assembly contract manufacturer with ISO 13485 certification and cleanroom capabilities. Highly comparable medical-only positioning and end-to-end molding-to-assembly offering.
• Phillips-Medisize: Major medical and drug delivery contract manufacturer offering precision injection molding, assembly, and cleanroom production. Comparable on ISO 13485 medical molding focus and turnkey capabilities, but at significantly greater scale with global footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/westec-plastics-corp-

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Westec Plastics