Superior Plastics
Superior Plastics is a 100% employee-owned custom plastic injection molder in Plain City, Ohio, operating 50 presses producing 207 million parts annually for automotive, medical, infant care, and construction customers across four continents.
- Company typePrivate
- Founded1997
- HeadquartersPlain City, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Superior Plastics does
Superior Plastics, Inc. is a privately held, 100% employee-owned custom plastic injection molding manufacturer founded in 1997 and headquartered in Plain City, Ohio. The company operates a 104,000 sq ft production facility running 50 injection molding machines on 24/7 schedules with capacity to produce approximately 207 million parts per year. Its primary process capability is custom molding of engineered resins — including PPS, glass-filled PA-66, glass-filled PP, ABS, PBT, PC, and POM — supported by insert and overmolding, three-axis servo robotics, press-side automation, and pressurized water systems. Beyond molding, the company offers ultrasonic welding of engineered resin to metal components, manual and automated assembly using collaborative robots with integrated vision inspection, and full-service engineering from material selection and part design through in-house tool building and project management. Quality is governed by ISO 9001:2015 certification (AMTIVO) and a MoldTrax-based preventative maintenance program for tool tracking.
The company's commercial model is B2B direct sales with quote-based pricing, serving enterprise customers in automotive, medical, infant care, and construction industries. Named customers include KYB Americas Corporation (recipient of multiple Quality, PPM, and President's Awards from 2015-2018) and Worthington Industries (Certified Supplier 2012-2019, eight consecutive years). Products ship directly to customers across North America, Europe, China, and Australia. Headcount is reported in the 11–50 range, and leadership consists of engineers and business professionals with over 100 years of combined tenure at the firm — consistent with the ESOP-style employee ownership structure stated throughout the company's materials.
From 1997 to 2019, Superior Plastics executed a sustained facility expansion strategy: a 5,000 sq ft leased start in 1997, a 12,000 sq ft build at the current headquarters in 2000, a 12,000 sq ft expansion in 2001, acquisition of an adjacent 22,000 sq ft warehouse in 2014, and an 80,000 sq ft addition groundbreaking in 2019. This trajectory reflects a methodical, capacity-led growth approach rather than acquisitive or externally funded expansion. The firm carries no disclosed external equity, debt, M&A activity, or leadership changes in the available record, and the only quality credential disclosed beyond customer awards is ISO 9001:2015.
Superior Plastics firmographics
Firmographics- Name
- Superior Plastics
- Legal name
- Superior Plastics, Inc.
- Website
- https://superiorplasticsinc.com
- Company type
- Private
- Founded year
- 1997
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Superior Plastics is a 100% employee-owned custom plastic injection molder in Plain City, Ohio, operating 50 presses producing 207 million parts annually for automotive, medical, infant care, and construction customers across four continents.
- Ownership category
- akta.pro rank
Where Superior Plastics is headquartered
LocationHeadquarters
- HQ city
- Plain City
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Superior Plastics business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D
Revenue model
- Custom Injection Molding Services: Custom plastic injection molding services for automotive, medical, infant care, and construction industries. Services include tooling, molding, and value-added assembly operations.
- Assembly Services: Manual and automated assembly solutions including customized assembly, fully automatic assembly cells, and box fills
- Engineering and Project Management: Full project management and tool building resources from concept to completion, including material selection, part design, and automation processing
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Custom quote-based pricing for injection molding services |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Superior Plastics product offering
Product offeringCore offering
Superior Plastics manufactures custom plastic injection molded components using 50 injection molding machines equipped with three-axis servo robots and press-side automation, with capacity of approximately 207 million parts per year. The company also provides manual and automated assembly services, ultrasonic welding for engineered-resin to metal components, in-house engineering and mold/tool building, and quality services including vision measurement and MoldTrax-based preventative mold maintenance.
Product overview
Superior Plastics is a custom injection molding company offering a comprehensive suite of manufacturing services. The core offerings include Custom Injection Molding (with 50 machines and capacity for 207 million parts annually), Manual and Automated Assembly, and Ultrasonic Welding. Supporting these are Engineering Services (project management and tool building) and Quality Services (vision measurement and mold maintenance). The company operates a 104,000 sq ft production facility in Plain City, Ohio and serves automotive, medical, infant care, and construction industries.
Differentiator
Problem solved
Functional benefit
Products and services
- Custom Injection Molding
Companies that use Superior Plastics
Customer profileNamed customers2 records
Segments4 records
Ideal customer profiles4 records
Superior Plastics technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature8 records
Superior Plastics partnerships and signals
Strategic signalScale indicators6 records
Recent moves10 records
Expansion highlights4 records
Superior Plastics competitors and assessment
Company assessmentDirect peers
- EVCO Plastics: Custom injection molder with a multi-press footprint, in-house tooling, and assembly serving automotive, medical, industrial, and consumer customers. Closely comparable to Superior Plastics in operating model, vertical mix, and emphasis on automation and assembly value-add.
- Rodon Group: Custom injection molder offering design, tooling, molding, and assembly as a single source for industrial and consumer OEMs. Highly comparable to Superior Plastics on full-service custom molding with in-house tool building.
- Tessy Plastics: Large custom injection molder with a broad press range, in-house tooling, and automated assembly serving medical, automotive, and consumer end markets. Comparable scale and full-service model to Superior Plastics.
- Mack Molding: Vertically integrated contract manufacturer combining injection molding with tooling, assembly, and engineering services for industrial and medical customers. Comparable concept-to-completion value proposition to Superior Plastics.
- Stack Plastics: Custom injection molder providing molding, insert/overmolding, and assembly for medical, aerospace, and industrial customers. Comparable mid-sized custom molder profile with insert/overmolding capabilities overlapping Superior Plastics.
- Protolabs: Digital manufacturing platform offering on-demand injection molding, CNC, and 3D printing for prototyping and low-volume production. Direct overlap on custom injection molding services with a stronger digital/automated quoting motion.
- Plastic Components Inc. Custom injection molder producing engineered plastic components for automotive, industrial, and consumer applications with in-house assembly. Comparable mid-market custom molder competing for similar program types.
- F&S Plastics: Custom injection molder with insert molding, overmolding, and assembly services for automotive, appliance, and industrial customers. Directly comparable mid-sized custom molder with overlapping insert/overmolding and assembly capabilities.
Broad incumbents
- Phillips Medisize: Large, global contract manufacturer combining injection molding, drug delivery, and medical device assembly. Overlaps with Superior Plastics' medical and industrial molding capability but operates at significantly greater scale and regulated-industry depth.
- Xometry: On-demand manufacturing marketplace aggregating custom injection molding, CNC, sheet metal, and 3D printing suppliers. Adjacent competitor for custom molded part demand that might otherwise flow to Superior Plastics' quote-based sales motion.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Superior Plastics social profiles
Digital presenceSuperior Plastics compliance and trust
Trust signalCompliance1 record
Superior Plastics financial estimates
Financial estimateRevenue estimate
Valuation estimate
Superior Plastics leadership team
Management profileNumber of profiles
Superior Plastics funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Superior Plastics M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Superior Plastics
What does Superior Plastics do?
Superior Plastics manufactures custom plastic injection molded components using 50 injection molding machines equipped with three-axis servo robots and press-side automation, with capacity of approximately 207 million parts per year. The company also provides manual and automated assembly services, ultrasonic welding for engineered-resin to metal components, in-house engineering and mold/tool building, and quality services including vision measurement and MoldTrax-based preventative mold maintenance.
Is Superior Plastics a public or private company?
Superior Plastics is a private company. It is classified as management employee owned and is currently operating.
When was Superior Plastics founded?
Superior Plastics was founded in 1997. It employs 11 to 50 people.
Where is Superior Plastics based?
Superior Plastics is headquartered in Plain City, United States, in the North America region.
How does Superior Plastics make money?
Three revenue lines are on record. Custom Injection Molding Services are the primary driver. The others are assembly Services and engineering and Project Management.
Who are Superior Plastics's main competitors?
Direct peers on record are EVCO Plastics, Rodon Group, Tessy Plastics, Mack Molding, Stack Plastics, Protolabs, Plastic Components Inc. and F&S Plastics. Broad incumbents are Phillips Medisize and Xometry.
Does Superior Plastics have an API?
No public API is recorded for Superior Plastics.