What PTI Engineered Plastics does

PTI Engineered Plastics is a privately held, single-site plastic injection molding contract manufacturer headquartered in Macomb, Michigan, founded in 1984 as Proto-Tech Industries and rebranded in 1987. The company operates from a 160,000 square foot facility equipped with 60 injection molding presses (55 horizontal, 35-300 tons; 5 vertical, 35-150 tons), 24 of which are dedicated to a recently expanded ISO Class 8 cleanroom of over 10,000 square feet. PTI provides an end-to-end manufacturing service that spans industrial design (PTI Design studio launched 2010), engineering and DFM, in-house tooling (98% of molds built in-house using 25 CNC machining centers and 45+ mold makers), Scientific Injection Molding using RJG technology, secondary operations (welding, marking, plating, assembly), and IQ/OQ/PQ process validation.

Revenue is generated through quote-based project pricing for custom injection molded components, with a low-to-higher volume range extending up to 100,000+ units annually. Pricing is structured around per-part costs influenced by volume, material selection, and tooling complexity, supplemented by one-time tooling fees and engineering service charges. The go-to-market motion is consultative direct sales to enterprise OEMs, supported by an online Quick Quote system that accepts CAD files and returns DFM-annotated quotations within one to two days.

PTI serves six primary verticals: Medical Device Manufacturing (ISO 13485, FDA registered, MedAccred AC8160) and Aerospace & Defense (ITAR registered) are flagged as primary, with Consumer & Commercial, Industrial Machinery, Laboratory Equipment, and Electronics as secondary verticals. The customer base is exclusively enterprise OEMs in the United States, with no disclosed customer logos, no public revenue figures, no external funding, and no M&A activity across 40+ years of continuous operation. The company holds a dense stack of regulatory certifications (ISO 9001, ISO 13485, MedAccred, ITAR, IATF 16949, ISO 14001, FDA 21 CFR Part 820, ISO 14644) that materially shape its addressable customer pool toward regulated OEM applications.

Name

PTI Engineered Plastics

Legal name

PTI Engineered Plastics, Inc.

Website

https://teampti.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

251–500 employees

Short description

PTI Engineered Plastics is a privately held, single-site plastic injection molding contract manufacturer in Macomb, Michigan, serving regulated medical, aerospace, and industrial OEM customers with in-house tooling, scientific molding, Class 8 cleanroom production, and full IQ/OQ/PQ validation under one roof.

Ownership category

akta.pro rank

Product category

Custom Plastic Injection Molding

NAICS

All Other Plastics Product Manufacturing (326199)

SIC

Plastics Products, Nec (3089)

akta.pro primary industry

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ)

akta.pro secondary industries

Medical & Life Sciences Injection Molding (Devices, Diagnostics, Cleanroom) (IMANAFAC), Automotive & Transportation Injection Molded Parts (IMANAFAB), Electrical & Electronics Injection Molded Components (Connectors, Housings) (IMANAFAD)

Keywords

• Plastic injection molding
• Contract manufacturing services
• Cleanroom injection molding
• Medical device molding
• Custom mold tooling

Headquarters

HQ city

Macomb

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: Core revenue from plastic injection molding services spanning low-volume to high-volume production. Services include standard molding, low volume, insert molding, overmolding, cleanroom molding, scientific molding, high-temperature molding, and small part precision molding. Revenue is project-based with per-part pricing influenced by volume, material selection, and tooling requirements.
2. Tool Design and Build: In-house tooling department providing mold design, CNC machining, and tool construction services. Offers aluminum, hybrid, and hardened steel tooling options. 98% of molds built in-house. Tool transfer program available for customers transitioning from other manufacturers.
3. Secondary Operations and Value-Added Services: Post-mold services including ultrasonic welding, pad printing, laser marking, spin welding, thermal insertion, hot air cold staking, painting, plating, and EMI/RFI shielding. Assembly and contract manufacturing services for full mechanical assemblies and sub-assemblies.
4. Design and Engineering Services: In-house product design and development services including ideation, engineering, packaging, 3D modeling, 3D printing, branding, concept renderings, and functional prototypes. CAD team employs SolidWorks and Moldflow. Services include Design for Manufacturability (DFM) reviews included with quoting.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

PTI Engineered Plastics is a single-source plastic injection molding contract manufacturer serving OEM professionals with custom molded parts from concept through production. The company provides plastic injection molding (prototype, low-volume, and high-volume up to 100,000+ units annually), in-house mold design and tooling, ISO Class 8 cleanroom molding, scientific molding, insert and overmolding, high-temperature molding, secondary operations (welding, printing, marking, assembly), and process validation services. All work is performed in a 160,000 sq ft facility in Macomb, Michigan under certifications including ISO 9001, ISO 13485, MedAccred, ITAR, FDA, and IATF 16949.

Product overview

PTI Engineered Plastics operates as a single-source plastic injection molding contract manufacturer offering a unified platform of manufacturing services under one roof. The core offering centers on plastic injection molding capabilities including Low Volume Production (LVP) molding, Insert Molding, Overmolding, Cleanroom Molding, Scientific Injection Molding, High Temperature Molding, PTI Production Prototype (P3), and Small Part Injection Molding. Supporting this core platform are integrated add-on modules: Industrial Design Services, Engineering & DFM Services, In-House Tooling, Tool Transfer Program, Secondary Operations (welding, printing, marking), and Process Validation services. Industry-specific solutions are provided for Medical Device, Defense & Aerospace, Consumer & Commercial, Industrial Machinery, Laboratory Equipment, and Electronics sectors. The company operates a 160,000 ft² facility with ISO Class 8 cleanrooms, utilizing 60 injection molding machines (55 horizontal 35-300 ton and 5 vertical 35-150 ton) and in-house tooling with over 45 mold makers.

Differentiator

Problem solved

Functional benefit

Products and services

• Plastic Injection Molding Comprehensive custom plastic injection molding solutions for OEM customers, spanning prototype development, low-volume production, and scalable medium- to high-volume manufacturing (up to 100,000+ units annually) with full assembly.
• Low Volume Production (LVP) Molding Specialized low to high volume plastic injection molding using high-grade aluminum tooling, delivering the precision and cost advantages of high-volume production molds at economical tooling costs.
• Insert Molding Specialized process where pre-formed metal or other material components are placed into a mold with molten plastic injected around them to create integrated parts with threaded inserts, metal stems, studs, and cannulas.
• Overmolding Process where one thermoplastic material (typically TPE) is molded onto a second rigid substrate material using two separate molds to bond different materials for greater aesthetics and functional appeal.
• Cleanroom Molding ISO Class 8 certified cleanroom injection molding with over 10,000 square feet of certified space and 24 dedicated presses ranging from 22 to 245 tons for medical and sensitive device manufacturing.
• Scientific Injection Molding Data-driven disciplined approach using RJG-certified master molders, cavity pressure sensors, and decoupled molding techniques (DI, DII, DIII) for Six-Sigma quality and consistent repeatable results.
• High Temperature Molding Specialized injection molding for heat-resistant polymers including PEEK, PPA, PAI, PPS, and PEI with equipment capable of processing temperatures up to 850°F using ceramic heater bands and thermolators.
• PTI Production Prototype (P3) Proprietary prototype injection molding solution combining prototype speed with production quality, where the same tool provides prototypes for testing and can be used for initial or full production runs, yielding tens of thousands of shots.
• Small Part Injection Molding Precision micro and small-scale plastic injection molding for tight tolerances and complex geometries including micro features, thin walls, and intricate designs for medical, electronics, and industrial applications.
• Industrial Design Services Full-service design and development capabilities including ideation, engineering, packaging, 3D modeling, 3D printing, branding, concept renderings, and functional prototypes following a five-step design process.
• Engineering & DFM Services Design for Manufacturing (DFM) and Design for Assembly services using SolidWorks and Moldflow software to convert concepts to efficiently manufactured plastic products.
• In-House Tooling Premium in-house tooling department with state-of-the-art CNC machining centers, EDM machines, and over 45 mold makers producing prototypes, hybrid and production tooling using aluminum, steel, and copper beryllium materials. 98% of molds built in-house.
• Tool Transfer Program Comprehensive tool/mold transfer service including evaluation, proactive maintenance, repairs, and validation with a dedicated team of process engineer, account manager, tooling engineer, and quality engineer.
• Secondary Operations Post-mold value-added services including ultrasonic welding, spin welding, pad printing, laser marking, thermal insertion, hot air cold staking, heat staking, appliqué assembly, and paint/plating managed services.
• Process Validation IQ/OQ/PQ process validation and PPAP submission services including first article layouts, dimensional inspection, and comprehensive validation reporting for medical device manufacturing.
• Medical Device Injection Molding ISO 13485 certified medical device manufacturing with cleanroom molding and FDA registration, serving applications including endoscopy, cardiovascular, drug delivery, surgical robotics, and laboratory equipment.
• Defense & Aerospace Injection Molding ITAR-registered injection molding for defense and aerospace using lightweight materials like PEEK and Ultem with high precision and repeatability for complex geometries.
• Consumer & Commercial Injection Molding Manufacturing services for consumer and commercial products including early design support, prototyping through production, and commercial plastic injection molding for electronics and consumer goods.
• Industrial Machinery Injection Molding Precision injection molding for industrial machinery components using engineered resins like PEEK, Nylon, Glass-Filled Polycarbonate, and PPS with tolerances of ±0.005 inches or better.
• Laboratory Equipment Injection Molding High-precision medical-grade injection molding for laboratory equipment with chemical-resistant materials (PEEK, Polycarbonate, PBT) and cleanroom manufacturing for sterile environments.
• Electronics Injection Molding Injection molding for electronic devices including ESD and EMI shielding capabilities, custom injection molding, and sustainable manufacturing practices for consumer goods.

Quantifiable outcome

• Cleanroom manufacturing production capabilities increased by over 350% after facility expansion
• +3 more outcomes

Named customers1 record

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators8 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Mack Molding: Vermont-based specialty plastics and injection molding contract manufacturer with in-house tooling and assembly for medical, industrial and defense customers; competes with PTI in regulated, multi-vertical molding programs.
• Protolabs: Global digital manufacturer offering custom injection molding services for prototyping and low-volume production to OEM customers across medical, aerospace, and industrial end markets; directly overlaps with PTI's core custom injection molding offering and similar vertical customers.
• EVCO Plastics: Wisconsin-based contract plastics manufacturer offering custom injection molding, in-house tooling, and assembly for medical, industrial, and consumer OEMs; competes head-to-head with PTI for medium- to high-volume regulated injection molding work.
• Tessy Plastics: New York-based custom plastic injection molder serving medical, defense, and industrial OEMs with in-house tooling and assembly; comparable service bundle and regulated end-market focus.
• Rodon Group: Pennsylvania-based custom injection molder with in-house tool room serving medical, defense, industrial and consumer markets; comparable footprint of tooling-plus-molding services and vertical mix to PTI.
• Plastikos Inc. Pennsylvania-based custom injection molder specializing in precision medical and micromolding with cleanroom capabilities; directly comparable to PTI in regulated medical device and small-part molding.

Emerging players

• Xometry: Online manufacturing marketplace offering injection molding alongside CNC, sheet metal, and 3D printing services; emerging channel competitor for low- to mid-volume custom injection molding where buyers value instant quoting over deep vertical specialization.

Broad incumbents

• UFP Technologies: Specialty manufacturer of engineered components using foam, plastics, and molded parts serving medical, aerospace, and industrial OEMs; broader portfolio than PTI but directly comparable in custom molded plastics for regulated end markets.
• Phillips-Medisize (Molex): Large global contract manufacturer of medical and drug-delivery devices including precision injection molding and assembly; overlaps with PTI's medical molding offering but at significantly larger scale and breadth as part of Molex.
• Plastic Omnium: Global tier-one automotive plastics supplier with injection molding and clean energy technologies; overlaps with PTI's automotive (IATF 16949) injection molded parts but operates at much greater scale and global reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/TEAMPTILL
• Facebookfacebook.com/ptiengineeredplastics
• LinkedInlinkedin.com/company/pti-engineered-plastics
• Xx.com/team_pti

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

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 PTI Engineered Plastics