What Hoffer Plastics does

Hoffer Plastics is a third-generation, family-owned custom injection molder founded in 1953 and headquartered in South Elgin, Illinois. The company operates from a 365,000-square-foot facility on 24 acres, employs more than 350 people, runs 112 injection molding presses, and staffs 27 in-house toolmakers across three on-site toolrooms. It produces more than three billion parts annually at a stated 99.45% on-time delivery rate, serving manufacturers across medical/pharma, packaging, automotive, food/beverage, consumer/industrial, appliance, dairy, and personal care verticals — including enterprise customers (Prestone, Medtrition, Vergers Leahy Orchards, Yumbutter/Tribe 9, leading U.S. small engine OEMs) and emerging brands (Tomte Cake, RoseBud Ice Cream, Big Easy Blends).

The product offering combines contract injection molding services with a proprietary line of branded closures under the Lok™ family — Trust-T-Lok™ caps and spouts for flexible packaging and Drop-Lok® closures for rigid packaging. Supporting capabilities include in-house tooling and moldmaking, design-for-manufacturability engineering, secondary operations, automation (vision inspection, palletizing), and micromolding for medical devices. Differentiated certifications (ISO 9001, ISO 14001, IATF 16949, MedAccred with annual audits, SQF) and patented closure IP — including the FDA 510(k)-cleared EnteraLoc enteral device — anchor eligibility for regulated end-markets.

Revenue is generated through custom manufacturing contracts and proprietary product sales via direct enterprise field sales, with quote-based project pricing and multi-year contractual relationships. The company is 100% debt-free, reinvests 10-15% of revenue into new equipment annually, and has no external investors, parent entity, M&A activity, or international footprint on record. Go-to-market is anchored in trade shows (PACK EXPO, MD&M West), industry publications, and direct outreach to enterprise customers, with operations exclusively U.S.-domestic.

Name

Hoffer Plastics

Legal name

Hoffer Plastics Corporation

Website

https://hofferplastics.com

Company type

Private

Founded year

1953

Operating status

Operating

Headcount range

251–500 employees

Short description

Hoffer Plastics is a third-generation, family-owned custom injection molder founded in 1953 in South Elgin, Illinois, producing over 3 billion parts annually across medical, packaging, automotive, food/beverage, and consumer verticals, with a proprietary Lok™ family of patented closure products and MedAccred, IATF 16949, and SQF certifications.

Ownership category

akta.pro rank

Product category

Custom Plastic Injection Molding

NAICS

Plastics Product Manufacturing (3261), All Other Plastics Product Manufacturing (326199), Plastics Packaging Materials and Unlaminated Film and Sheet Manufacturing (32611)

SIC

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

akta.pro primary industry

Spouts, Fitments & Pouring Closures (IMALALAH)

akta.pro secondary industries

Household & Institutional Rigid Plastic Packaging (Detergent, Cleaners) (IMALAAAH), Industrial & Chemical Rigid Plastic Packaging (Drums, Pails, Jerrycans) (IMALAAAG)

Keywords

• Custom plastic injection molding
• Proprietary closure systems
• In-house tooling services
• Medical device injection molding
• Flexible packaging caps

Headquarters

HQ city

South Elgin

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Injection Molding Services: Hoffer Plastics generates revenue through custom plastic injection molding services, producing engineered components for diverse industries. Services include design/engineering support, tooling, injection molding, secondary operations, automation, and moldmaking—all under one roof.
2. Proprietary Lok™ Closure Products: Sale of the company's proprietary Lok™ family of caps and closures including Trust-T-Lok™ for flexible packaging and Drop-Lok® for rigid packaging applications
3. Tooling and Mold Services: In-house tooling and moldmaking services supporting the injection molding process, including tool maintenance, transfer, and validation

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Hoffer Plastics is a custom plastic injection molding manufacturer that produces more than three billion parts annually from its 365,000-square-foot facility in South Elgin, Illinois. The company also sells its proprietary Lok™ family of caps and closures — Trust-T-Lok™ for flexible packaging and Drop-Lok® for rigid packaging — alongside in-house tooling, design/engineering, secondary operations, automation, and micromolding services for manufacturers in medical, automotive, packaging, food/beverage, consumer goods, and related industries.

Product overview

Hoffer Plastics is a family-owned custom injection molding company founded in 1953, offering a comprehensive suite of manufacturing services centered on precision injection molding. The company's core offering combines custom injection molding (producing over 3 billion parts annually with 99.45% on-time delivery) with proprietary closure products under the Lok™ family brand. The Lok™ family includes Trust-T-Lok™ caps and spouts for flexible packaging and Drop-Lok® closures for rigid packaging applications. Supporting these products are complementary services including in-house tooling and moldmaking (with 27 toolmakers and 3 on-site toolrooms), Design for Manufacturability (DFM) engineering, secondary operations, automation, and specialized micromolding for medical devices. The company operates from a 365,000-square-foot facility on 24 acres in South Elgin, Illinois, serving markets including packaging, medical/pharma, automotive, appliance, consumer/industrial, dairy, food/beverage, and personal care.

Differentiator

Problem solved

Functional benefit

Brands

• Lok™: Proprietary family of caps and closures for flexible and rigid packaging applications, including Trust-T-Lok® and Drop-Lok® product lines.
• Trust-T-Lok™
• Drop-Lok®

Products and services

• Custom Injection Molding High-volume custom injection molding services for enterprise manufacturers, with 99.45% on-time delivery across diverse industries including medical, automotive, packaging, food/beverage, consumer goods, dairy, and personal care.
• Trust-T-Lok™ Caps and Spouts Proprietary family of caps and spouts for flexible packaging applications, featuring leak-proof seals, tamper-evident closures, and child-resistant designs. Used in spouted pouches for food, beverage, automotive, and medical applications.
• Drop-Lok® Closure System Patented closure system for rigid packaging applications, providing secure sealing solutions for various container types.
• Tooling and Moldmaking In-house tooling and moldmaking services supporting the injection molding process, including new mold development, mold transfer, evaluation, and maintenance.
• Design and Engineering (DFM) Design for Manufacturability solutions that optimize part design for production, including material selection, tooling optimization, and production readiness assessment for new and existing products.
• Secondary Operations Value-added post-molding services including assembly, finishing, and customization to complete parts ready for end use.
• Automation Systems Automated manufacturing systems ensuring speed, accuracy, and consistent quality, including vision inspection systems and palletizers integrated across production lines.
• Micromolding High-precision micro molding capabilities for medical device applications, producing extremely small, complex components with tight tolerances.

Quantifiable outcome

• 99.45% on-time delivery rate
• +5 more outcomes

Named customers7 records

Segments8 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• VoncocoreStrategic or Co-development Partner · 1 January 2022Vonco developed the EnteraLoc™ enteral feeding device, incorporating Hoffer Plastics' Trust-T-Lok spout. The product is marketed by Medtrition and achieved 510(k) FDA approval, winning multiple FPA awards.
• Truitt Brothers/Baxter's FoodsminorStrategic or Co-development Partner · 1 January 2022Contributed formulation and filling expertise to the EnteraLoc enteral feeding pouch project.
• GEDSAminorStrategic or Co-development Partner · 1 January 2022Global Enteral Device Supplier Association contributed to the EnteraLoc enteral feeding device development, providing expertise on enteral feeding standards.
• Oley FoundationminorStrategic or Co-development Partner · 1 January 2022Patient advocacy organization contributed to the EnteraLoc project supporting tube-fed patients.
• MedtritioncoreChannel Partner/ Reseller/ Distributor · 1 January 2022Markets the EnteraLoc enteral feeding device featuring Hoffer Plastics' Trust-T-Lok spout technology.
• Elgin Community CollegecoreStrategic or Co-development Partner · 1 January 1979Established the first U.S. Department of Labor-recognized injection molding apprenticeship program in 1979, which continues today.
• Zacros AmericacoreStrategic or Co-development PartnerZacros America, a pouch converter and flexible packaging manufacturer, partnered with Hoffer Plastics to develop sustainable packaging solutions. Together they combined Zacros' flexible pouch design expertise with Hoffer's precision-engineered Trust-T-Lok™ P22 spout to create safe, efficient, and sustainable packaging solutions for Prestone's automotive fluid packaging.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• AptarGroup: Global leader in dispensing systems, closures, and sealing solutions for pharmaceutical, beauty, food, and beverage markets. Directly comparable to Hoffer's Trust-T-Lok™ and Drop-Lok® closure businesses but at much larger scale and broader geographic reach.
• Silgan Holdings: Major North American manufacturer of metal and plastic containers, closures, and dispensing systems. Closures segment directly overlaps with Hoffer's Drop-Lok® rigid packaging closures and Trust-T-Lok™ flexible packaging spouts.
• Berry Global: Large diversified producer of plastic packaging products including containers, closures, and engineered materials. Overlaps with Hoffer's packaging and consumer/industrial injection molding offerings across multiple end-markets.

Direct peers

• Spectrum Plastics Group: Specialty medical plastics manufacturer with capabilities in injection molding, micromolding, and packaging for medical devices. Closely comparable to Hoffer's medical/pharma segment, particularly around micromolding and regulatory certifications.
• GW Plastics: Custom injection molder with deep medical device and automotive exposure, including precision molding and global manufacturing footprint. Comparable to Hoffer on customer mix (medical, automotive) and vertically integrated tooling capabilities.
• Tessy Plastics: Custom injection molder serving medical, automotive, and consumer markets with automated high-volume production. Comparable scale and end-market mix to Hoffer's custom injection molding services business.
• EVCO Plastics: Mid-market custom injection molder offering design, tooling, molding, and assembly across consumer, industrial, and medical markets. Closely comparable to Hoffer's vertically integrated service model and customer breadth.
• Proto Labs: Digital manufacturer offering custom injection molding and CNC machining with rapid prototyping and low-volume production. Adjacent to Hoffer on custom injection molding but skews to lower-volume, faster-turn work.
• Plastic Components Inc. Automotive-focused custom injection molder producing interior, exterior, and functional components. Comparable to Hoffer's automotive segment including metal-to-plastic conversion work.
• RTP Company: Custom engineered thermoplastic compounder and molder serving medical, automotive, and industrial markets. Comparable to Hoffer on engineered material selection and metal-to-plastic conversion applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@HofferPlastics
• Facebookfacebook.com/hofferplastics
• LinkedInlinkedin.com/company/570357
• Instagraminstagram.com/hofferplastics

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 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 Hoffer Plastics