GDC

What GDC does

GDC Corporation is a vertically integrated manufacturer of engineered foam, rubber, and plastic components, founded in 1955 and headquartered in Goshen, Indiana. The company supplies over 175 million parts annually from eight manufacturing facilities comprising more than 425,000 square feet of production space concentrated in the Midwestern United States. GDC operates as a Tier 1 and Tier 2 supplier primarily to major automotive OEMs including Ford, Toyota, General Motors, Tesla, Stellantis, and Rivian, with secondary exposure to agricultural, industrial, and recreational vehicle end markets. The firm remains family-owned, led by CEO Loretta Miller (over 35 years of tenure) and Senior Executive Officer Christopher Miller, with no disclosed private equity, venture, or strategic parent ownership.

The company's core technology centers on proprietary material formulations and a broad set of molding and extrusion processes. Three proprietary brands anchor the portfolio: Sonozorb, a recyclable polypropylene acoustic insulation; Enduraprene, a patented thermoplastic elastomer produced from recycled rubber and plastics via a de-vulcanization process enabling up to 80% recycled rubber content; and Deep-Green, a sustainable bio-fiber composite made from advanced natural fibers and recycled bast fibers. Manufacturing capabilities span injection molding, blow molding, extrusion, compression molding, overmolding, insert molding, and multi-step complex sub-assemblies, supported by an in-house ISO/IEC 17025-accredited thermoplastics laboratory.

GDC generates revenue through B2B component sales under negotiated multi-year supply agreements with automotive and industrial OEMs, with pricing customized to component specifications, volume, and program lifecycle. Quality system certifications including IATF 16949:2016 across multiple sites, ISO 14001:2015, and the Ford Q1 designation held continuously since 1981 underscore long-tenured supplier qualifications across the major OEM customer base. Distribution is direct to enterprise customers with no intermediary channel.

Name

GDC

Legal name

GDC, Inc.

Website

https://gdc-corp.com

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

11–50 employees

Short description

GDC Corporation is a family-owned, vertically integrated manufacturer of engineered foam, rubber, and plastic components supplying 175 million parts annually to major automotive OEMs including Ford, GM, Toyota, Tesla, Stellantis, and Rivian from eight Midwestern U.S. facilities.

Ownership category

akta.pro rank

Product category

Automotive Components Manufacturing

NAICS

Plastics Product Manufacturing (3261), Urethane and Other Foam Product (except Polystyrene) Manufacturing (32615), Resin, Synthetic Rubber, and Artificial and Synthetic Fibers and Filaments Manufacturing (3252)

SIC

Fabricated Rubber Products, Nec (3060), Plastics Foam Products (3086), Miscellaneous Plastics Products (3080)

akta.pro primary industry

Polymer Compounds & Masterbatches (Compounding, Color/Fill/Additive Concentrates) (IMAEANAJ)

akta.pro secondary industry

Polypropylene (PP) Foam Manufacturing (IMANAIAF)

Keywords

• Engineered foam components
• Automotive parts supplier
• Rubber plastic manufacturing
• Acoustic insulation materials
• Injection molding services

Headquarters

HQ city

Goshen

HQ country

United States

HQ region

North America

Offices2 records

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. Component Manufacturing & Sales: GDC generates revenue through the manufacture and sale of engineered foam, rubber, and plastic components to automotive, agricultural, industrial, and recreational vehicle customers. Revenue is derived from long-term supply relationships with tier-1 and tier-2 automotive suppliers and other industrial manufacturers.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

GDC Corporation is a vertically integrated manufacturer of engineered foam, rubber, and plastic components supplying Tier 1 and Tier 2 automotive OEMs and other industrial customers. The company produces proprietary materials (Sonozorb acoustic insulation, Enduraprene engineered TPE, Deep-Green bio-fiber composite) as well as custom-engineered foam, rubber, and plastic components manufactured through injection molding, blow molding, extrusion, compression molding, and related processes across 8 facilities totaling over 425,000 square feet.

Product overview

GDC Corporation operates as a vertically integrated manufacturer offering a portfolio of proprietary engineered materials and components. The core offering spans three proprietary brands — Sonozorb acoustic insulation, Enduraprene engineered TPE, and Deep-Green bio-fiber composite — supported by a broad range of standard foam, rubber, and plastic components manufactured through capabilities including injection molding, blow molding, extrusion, compression molding, thermoforming, die-cutting, and lamination. The company serves automotive, agricultural, industrial, and recreational vehicle markets as a Tier 1 and Tier 2 supplier, with over 175 million parts supplied annually from 8 facilities totaling over 425,000 SF of manufacturing space.

Differentiator

Problem solved

Functional benefit

Brands

• Sonozorb: Lightweight, durable, high-loft polypropylene acoustic insulation. Fully recyclable and naturally hydrophobic, mold and mildew resistant acoustic insulation product.
• Enduraprene
• Deep-Green

Quantifiable outcome

• 175 million parts supplied annually
• +2 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Rodgers CorporationcoreStrategic or Co-development PartnerGDC serves as a Rodgers Corporation preferred supplier for critical EV battery applications including components in lithium-ion and pouch batteries. This partnership positions GDC as a key supplier in the EV battery component supply chain.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Autoneum: Swiss Tier-1 supplier specializing in acoustic and thermal management components for the automotive industry, including NVH insulation and lightweight solutions. Closely comparable to GDC's Sonozorb and broader acoustic/NVH product line serving the same OEM customer base.
• Cooper Standard: U.S.-based global supplier of sealing, fuel, and fluid handling systems, plus anti-vibration components, serving major automotive OEMs. Direct comparability with GDC's rubber and plastic sealing/gasket business for automotive NVH and powertrain applications.
• Henniges Automotive: Supplier of sealing systems and anti-vibration components for doors, windows, trunks, and hoods in passenger and commercial vehicles. Closely matches GDC's engineered rubber and plastic sealing and anti-squeak/rattle product family.
• Trocellen: European manufacturer of cross-linked polyolefin foams used in automotive NVH, sealing, and insulation applications. Directly comparable to GDC's foam-component capabilities and automotive acoustic/NVH focus.
• Armacell: Global manufacturer of engineered foams, including flexible elastomeric and PET foams, serving industrial, automotive, and construction markets. Comparable to GDC's engineered foam components and proprietary Sonozorb-type specialty foams.
• Trelleborg: Sweden-based polymer technology group producing engineered polymer solutions, seals, antivibration components, and specialty materials for automotive and industrial customers. Highly comparable to GDC's rubber and polymer compound portfolio.
• Shiloh Industries: U.S. supplier of lightweighting, noise and vibration solutions, and precision-molded components for automotive and industrial markets. Comparable to GDC's engineered foam and metal/plastic lightweighting capabilities serving similar North American OEMs.

Broad incumbents

• Faurecia: Large French Tier-1 supplier of automotive interiors, seating, clean mobility, and electronics solutions serving most global OEMs. Overlaps with GDC's interior trim and acoustic/NVH work but operates at much greater scale and breadth.
• Magna International: One of the world's largest diversified automotive suppliers, producing body, chassis, seating, and powertrain components for nearly every major OEM. Comparable only at the broadest level — competes for similar spec-in component slots across GDC's served markets.
• Adient: Global leader in automotive seating and interior systems, supplying major OEMs worldwide. Broader-scale incumbent operating in adjacent interior-trim and acoustic categories where GDC also competes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/GDCGoshen
• LinkedInlinkedin.com/company/gdcinc

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 GDC