What Royal Plastics does

Royal Plastics, Inc. is a privately held, closely held S-Corp contract manufacturer founded in 1966 and headquartered in Mentor, Ohio. The company produces custom injection molded plastic parts — with shot sizes up to 160 oz and 850 tons of clamping force — for industrial, electrical, healthcare/medical, fluid management, retail/consumer, and commercial/industrial customers. Its go-to-market is direct B2B enterprise field sales with quote-based, project-by-project pricing and engineering-driven application scoping.

Beyond core molding, Royal Plastics operates an integrated contract-manufacturing stack that includes in-house toolmaking (EDM, CNC machining, milling, surface grinding), metal stamping (45 presses up to 500 tons), custom decorating (pad print, heat transfer, hot stamp, digital ink jet), CNC machining, light assembly and kitting, quality assurance (CMM, optical comparator, color spectrophotometer), and printed circuit board assembly (3 SMT lines with AOI). The firm runs an ISO 9001:2015-registered quality system and is recognized as a manufacturing location under UL, CSA, NSF, ETL, CE, RoHS, and FDA 21 CFR Part 820, qualifying it for regulated end-markets.

The company operates a dual-region manufacturing footprint: RPI-Mentor (the US headquarters and primary facility, ~250 domestic employees) and RPI-China (an Asian integrated contract manufacturing partner established in 2003, ~800 employees) providing toolmaking, molding, stamping, assembly, and PCBA. The China operation has progressively expanded from tool-only exports (2000) to injection molding exports (2004) to integrated components, assembly, and testing exports (2005). Materials processed span ABS, acetal, acrylic, CPVC, fluoropolymers, nylon, polycarbonate, polyethylene, polypropylene, polystyrene, polyurethane, and engineering thermoplastics. Royal Plastics is family-controlled with no disclosed institutional investment, M&A activity, or external funding rounds.

Name

Royal Plastics

Legal name

Royal Plastics, Inc.

Website

https://royalplastics.com

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

251–500 employees

Short description

Royal Plastics is a privately held, US-headquartered contract manufacturer (founded 1966) of custom injection molded plastic parts and integrated electromechanical assemblies, serving industrial, electrical, medical, and fluid-management customers from dual facilities in Mentor, Ohio and China.

Ownership category

akta.pro rank

Headquarters

HQ city

Mentor

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Injection Molding Services: Contract manufacturing of custom injection molded plastic parts. Revenue generated through part production based on customer specifications, supporting low-volume prototype to high-volume production runs.
2. Integrated Contract Manufacturing: Comprehensive manufacturing services including toolmaking, metal stamping, decorating, assembly, circuit board assembly, testing, and shipping. B2B contract manufacturing model.
3. Secondary Processing Services: CNC machining, decorating (pad print, heat transfer, hot stamp, digital ink jet), assembly, testing, and warranty services

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Royal Plastics is a full-service custom manufacturer of injection molded plastic parts and integrated contract manufacturer. It produces custom plastic injection molded components (up to 160 oz shot size with 850-ton clamping force) and provides cradle-to-grave manufacturing services including tool/die making, CNC machining, metal stamping, surface decorating (pad printing, heat transfer, hot stamp, digital ink jet), light assembly, kitting, quality assurance testing, and printed circuit board assembly (SMT).

Product overview

Royal Plastics is a full-service custom manufacturer of injection molded plastic parts and contract manufacturer offering an integrated suite of manufacturing services. The core offering is Injection Molding (with insert molding and overmolding capabilities up to 160 oz. shot size and 850 tons clamping force), supported by Custom Decorating (pad printing, heat transfer, hot stamp, digital printing), Tool Making (EDM, CNC machining), Metal Stamping (45 presses, 500 tons max), CNC Machining, Assembly, Quality Assurance (CMM, optical inspection), and Circuit Board Assembly (SMT lines). Services span from tooling design through production, assembly, testing, and shipping, with manufacturing operations in both the USA (Mentor, Ohio) and China. Materials processed include ABS, acetal, acrylic, CPVC, fluoropolymers, microcellular, nylon, PET, polycarbonate, polyester, polyethylene, polypropylene, polystyrene, and polyurethane.

Differentiator

Problem solved

Functional benefit

Products and services

• Plastic Injection Molding Custom plastic injection molding service with shot sizes up to 160 oz and maximum clamping force of 850 tons. Includes insert molding and overmolding for complex multi-piece parts. Serves B2B industrial, electrical, medical, fluid management, and consumer product customers requiring precision molded components.
• Custom Decorating Surface decoration services for plastic parts including pad printing, heat transfer, digital heat transfer, hot stamp, and digital ink jet printing using 13 hot stamp machines, 10 heat transfer machines, and 1 digital ink jet printer.
• Metal Stamping Metal stamping capability with 45 presses and maximum tonnage of 500 tons used to produce metal components as part of integrated manufacturing services.
• Tool Making Tool and die making services utilizing 6 wire cut EDM machines, 7 CNC machining centers, 16 EDM machines, 50 milling machines, and 10 surface grinders to produce molds and tooling in-house.
• Circuit Board Assembly Printed circuit board assembly services with 3 SMT/electronics lines supporting PCB max size of 330x250mm, component sizes from RC0402 (1.0x0.50mm) to 30x30x6mm, and automated optical inspection.
• Assembly Services Light assembly, kitting, and integrated component assembly services combining molded parts, stamped metal components, and circuit boards into finished assemblies for B2B customers.
• CNC Machining CNC milling and machining services for tool making and secondary operations including precise drilling and window milling as part of integrated manufacturing.
• Quality Assurance Quality inspection and verification services including CMM, optical comparator, color spectrophotometer, and dimensional checks, governed by ISO 9001:2015 across US and China facilities.

Quantifiable outcome

• Tightest tolerances of +/- 0.005 inches achieved on CPVC pipe injection molding
• +2 more outcomes

Named customers2 records

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• RPI-ChinacoreStrategic or Co-development Partner · 1 January 2003Partnership between RPI-Mentor, USA and RPI-China established in 2003. RPI-China serves as Asian integrated contract manufacturer providing toolmaking, decoration, assembly, kitting, testing, verification, metal stamping, die making, and PCBA services. Enables cost-effective offshore manufacturing while maintaining quality standards.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Mack Molding: Vertically integrated custom injection molder with in-house tooling, molding, assembly, and fulfillment — comparable contract-manufacturing model with similar equipment intensity.
• Phillips Medisize: A global custom injection molder and contract manufacturer serving medical, pharmaceutical, and industrial customers with integrated design, tooling, molding, and assembly — closely overlaps Royal's regulated, integrated-services model.
• Tessy Plastics: US-based custom injection molder and contract manufacturer with multiple plants producing complex molded components and assemblies for industrial, medical, and consumer end markets — directly comparable scale and service mix.
• EVCO Plastics: Custom injection molder with global manufacturing footprint offering design, tooling, molding, decorating, and assembly — competing head-to-head with Royal in industrial and consumer contract manufacturing.
• MGS Manufacturing: Custom injection molding and contract manufacturer offering tooling, molding, decorating, and assembly for industrial and consumer markets — directly comparable service stack to Royal.
• Plastic Components Inc. US-based custom injection molder with assembly capabilities serving automotive, industrial, and consumer customers — directly comparable mid-market contract manufacturer.
• Rodon Group: High-volume custom injection molder with in-house tooling and assembly capabilities serving industrial and consumer customers — comparable scale and integrated manufacturing model.
• PTI Engineered Plastics: Custom injection molder specializing in complex, tight-tolerance plastic components and assemblies for medical, industrial, and electronics customers — closely matches Royal's precision and regulated-vertical focus.

Broad incumbents

• Sanmina: Global Tier 1 contract manufacturer offering plastics, PCBA, and integrated assembly across industrial, medical, and communications end markets — larger-scale incumbent competing for multi-site OEM programs.
• Nypro (Jabil): Global precision plastics and contract manufacturing division of Jabil, serving healthcare, packaging, and consumer electronics at substantially larger scale than Royal — competes for the same enterprise molding and assembly programs.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/2092469

Compliance8 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 Royal Plastics