What Mayco International does

Mayco International is a Michigan-headquartered, privately-held Tier-1 automotive supplier that designs, engineers, tools, manufactures, assembles, and sequences interior and exterior modules for vehicle OEMs and Tier-1 partners across North America and Mexico. The company operates a manufacturing footprint of roughly 40 locations with 7,000+ employees (per company claim; facility-level headcount disclosures sum to approximately 2,237), anchored by its 750,000 sq ft Sterling Heights, MI headquarters and including operations in Shelby Township, Toledo, Warren, Clinton Township, Hartford City, Stevensville, and San Luis Potosí, Mexico.

Its core product portfolio consists of instrument panels, functional plastics, vehicle trim (hard, soft, headliner, exterior), door panels, consoles, seat trim, interior air outlets and mechanisms, and cargo management systems (load floors, cargo hooks, under-seat storage). Manufacturing is built around advanced polymer processing — injection molding (85 to 4,000 ton presses), thermocompression, two-shot molding, polyurethane spray/compression, SMC molding, and in-mold decoration/gas-assist/MUCELL — with proprietary material technologies (BioForm, BioJect, PolyForm, Structural Injection Compression, and PolyUrethane Reactive Overmold) targeting OEM lightweighting and emissions-reduction mandates with quantified benefits of 10–65% weight reduction and 25–90% emissions/VOC reduction.

Revenue is generated through quote-based B2B enterprise contracts with OEMs and Tier-1 suppliers for hardware (module sales) and professional services (tooling, engineering, validation). The company goes to market through direct enterprise sales and dedicated OEM account management, supplementing with a corporate website, LinkedIn, Instagram, Facebook, and X/Twitter channels and content marketing. Marquee customer relationships include Stellantis (Supplier of the Year 2024 in Program Management and Body & Interior), Toyota (Excellent Technology & Development Award 2020), and FCA (Interior Supplier of the Year 2020), among others. Founded in 1974 (per company history; firmographics lists 2006) and incorporated as Mayco International, LLC in Michigan, the company is privately held with no identified parent or external investor.

Name

Mayco International

Legal name

Mayco International, LLC

Website

https://maycointernational.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

251–500 employees

Short description

Mayco International is a Michigan-based, privately-held Tier-1 automotive supplier that designs, engineers, manufactures, and assembles interior and exterior modules — instrument panels, door panels, consoles, seat trim, and cargo systems — for major OEMs across North America and Mexico, with proprietary lightweight sustainable material technologies.

Ownership category

akta.pro rank

NAICS

Motor Vehicle Seating and Interior Trim Manufacturing (33636), Motor Vehicle Parts Manufacturing (3363)

SIC

Plastics Products, Nec (3089)

akta.pro primary industry

Automotive Interior Comfort & Convenience Components Manufacturing (Armrests/Cupholders/Storage/Interior Hardware) (IMACAKAJ)

akta.pro secondary industries

Automotive Exterior Body Panels & Closures Manufacturing (Bumpers/Fenders/Hoods/Doors/Tailgates) (IMACAKAD), Body Panels, Doors, Hoods & Closures Manufacturing (IMACAGAH)

Keywords

• Automotive interior modules
• Automotive exterior components
• Injection molding services
• Automotive engineering services
• Lightweight automotive materials

Headquarters

HQ city

Sterling Heights

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Automotive Component Manufacturing: Design, engineering, tooling, manufacturing, and logistics services for automotive interior and exterior modules sold directly to OEMs and Tier-1 suppliers
2. Tooling Services: Precision tooling design and manufacturing for automotive components
3. Engineering Services: Advanced development, design, validation, and testing services for automotive programs

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Mayco International designs, engineers, tools, manufactures, and assembles complete interior and exterior automotive modules including instrument panels, door panels, consoles, seat trim, vehicle trim, functional plastics, air outlets, and cargo management systems. It supports OEM and Tier-1 supplier customers with end-to-end concept-to-delivery services, proprietary lightweight and sustainable material technologies (BioForm, BioJect, PolyForm, SIC, PRO), in-house testing, and just-in-time sequencing across 40 facilities in North America and Mexico.

Product overview

Mayco International is a Tier-1 automotive supplier offering a comprehensive portfolio of interior and exterior automotive modules. The core product portfolio includes Instrument Panels, Functional Plastics, Vehicle Trim, Door Panels, Consoles, Seat Trim, Outlets & Mechanisms, and Cargo Management Systems. These products are supported by proprietary lightweight technologies including BioForm (50% bio-based, 50% recycled), BioJect (circular-economy injection molding), PolyForm (recyclable load-floor alternative), Structural Injection Compression (SIC), and PolyUrethane Reactive Overmold (PRO). The company provides integrated services spanning Pre-Concept & Design, Engineering & Validation, Tooling & Manufacturing, Assembly & Logistics, and Testing Lab capabilities. The full-service approach enables customers to move from concept to production with a single supplier handling design, engineering, tooling, manufacturing, and logistics.

Differentiator

Problem solved

Functional benefit

Brands

• BioForm: 100% green material (50% bio, 50% recycled) - 50% lighter weight, 45% lower CO2
• BioJect
• PolyForm
• Structural Injection Compression (SIC)
• PolyUrethane Reactive Overmold (PRO)

Quantifiable outcome

• BioForm delivers 50% lighter weight and 45% lower CO2 emissions
• +3 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Two partnerships are on record, tiered supporting.

• MGA ResearchsupportingOthersTesting partnership for continuous conformance testing alongside in-house lab capabilities for airflow, noise, flammability, vibration, and durability testing
• InterteksupportingOthersTesting partnership for continuous conformance testing ensuring components meet strict safety and performance standards

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Adient: Pure-play automotive seating and interior trim supplier spun off from Johnson Controls. Competes with Mayco in seat trim, headliners, and interior trim modules for North American OEMs.
• Faurecia (now FORVIA): Global Tier-1 supplier specializing in automotive interiors (Cockpit of the Future), seating, and clean mobility. Directly comparable to Mayco's interior module offerings.
• International Automotive Components (IAC) Group: Global Tier-1 supplier of interior and exterior trim products, including instrument panels, door panels, consoles, and flooring systems. Closely comparable product portfolio to Mayco's interior/exterior modules.
• Lear Corporation: Global Tier-1 automotive seating and interior systems supplier. Lear competes directly with Mayco in instrument panels, door panels, and interior trim modules for major OEMs including Stellantis.
• Inteva Products: Tier-1 automotive supplier of interior systems (instrument panels, door panels, consoles) and closure systems (roofs, liftgates). Comparable product portfolio and North American OEM focus to Mayco.
• Grupo Antolin: Spanish-headquartered global Tier-1 supplier specializing in automotive interior components — overhead systems, door panels, lighting, and cockpits. Comparable to Mayco in headliner and interior module categories.
• Yanfeng: Chinese-headquartered global automotive interior and exterior systems supplier. Competes with Mayco in instrument panels, consoles, and trim modules with significant North American presence.

Broad incumbents

• Magna International: One of the world's largest Tier-1 automotive suppliers with a broad portfolio including interior systems, exterior systems, and complete vehicle engineering. Magna competes with Mayco across multiple interior and exterior module programs.
• Motherson Group (Samvardhana Motherson): Global Tier-1 automotive supplier with a growing interior modules portfolio through acquisitions (Reydel, SMR, PKC). Increasingly competes with Mayco in interior trim and module assembly.

Emerging players

• Flex-N-Gate: North American Tier-1 supplier expanding into interior and exterior modules with significant injection molding capacity. Comparable scale and geographic focus to Mayco.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/MaycoGlobal
• Facebookfacebook.com/MaycoInternational
• LinkedInlinkedin.com/company/mayco-international
• Instagraminstagram.com/mayco_international

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries5 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 Mayco International