Principal Manufacturing Corporation

What Principal Manufacturing Corporation does

Principal Manufacturing Corporation is a vertically integrated precision metals manufacturer founded in 1939 and headquartered in a 170,000 sq. ft. Broadview, Illinois facility. The company is family-owned and operates without external funding, parent organization, or public listing; its 251-500 employee base reflects a stable workforce (2% reported turnover) built around an in-house 24-person toolroom. Core processes include fine blanking (100-700 ton press capacity), conventional metal stamping up to 700 tons, CNC machining (milling, turning, EDM, plasma, waterjet), plastic injection overmolding up to 200 tons, robotic and ASME-certified welding, double-disc grinding, deburring, and automated assembly — all under one roof with engineering support for design-for-manufacturability.

Revenue is generated through custom, RFQ-based B2B engagements with automotive OEMs and Tier 1 suppliers (Magna, Rivian, BorgWarner, BEV manufacturers), heavy truck builders, motorcycle manufacturers, industrial OEMs, HVAC producers, hand tool brands, and appliance makers. Pricing is non-public and project-specific, with multi-year contracts underwriting programs such as the Camaro convertible substructure (1,100 units/week across 28 dies and 41 parts) and high-volume oil pump covers (25,000/week). The firm holds IATF 16949:2016, ISO 14001:2015, and ITAR certifications, enabling participation in safety-critical automotive and defense-adjacent programs.

Distribution is direct enterprise sales with no resellers; finished parts ship from Broadview, IL to North American customers and internationally to Mexico, Czech Republic, Italy, Korea, and Japan. Marketing is content-led (educational guides, case studies, industry blog) supported by LinkedIn presence and an online RFQ funnel. Customer concentration is weighted toward automotive, though explicit diversification into HVAC, hand tools, marine, and other industrial verticals reduces single-segment dependence. No AI/ML capabilities, software products, or digital platforms are evident in the source material.

Name

Principal Manufacturing Corporation

Legal name

Principal Manufacturing Corporation

Website

https://principalmfg.com

Company type

Private

Founded year

1939

Operating status

Operating

Headcount range

251–500 employees

Short description

Principal Manufacturing Corporation is a family-owned, vertically integrated precision metal manufacturer in Broadview, IL, offering fine blanking, metal stamping, CNC machining, plastic overmolding, and automated assembly to automotive OEMs, Tier 1 suppliers, and industrial customers across North America, Europe, and Asia.

Ownership category

akta.pro rank

Product category

Precision Metal Stamping and Fine Blanking

NAICS

Manufacturing (31-33)

akta.pro primary industry

CNC Machine Tools (Turning, Milling, Machining Centers) (IMAHADAA)

Keywords

• Fine blanking services
• Precision metal stamping
• CNC machining services
• Plastic injection overmolding
• OEM component manufacturing

Headquarters

HQ city

Broadview

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. Manufacturing Services: Revenue generated from precision manufacturing services including fine blanking, metal stamping, CNC machining, plastic injection overmolding, and value-added secondary operations. Services are custom-quoted based on project specifications, volumes, and complexity.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Principal Manufacturing Corporation is a vertically integrated contract manufacturer that produces precision metal stampings and fine blanked components (100–700 ton press capacity), CNC machined parts, and plastic injection overmolded assemblies for automotive OEMs, Tier 1 suppliers, and industrial manufacturers. Production is supported by in-house tool and die design, double-disc grinding, precision welding, deburring, and automated assembly, all under one roof in Broadview, IL, with engineering design-for-manufacturability consultation offered during product development.

Product overview

Principal Manufacturing Corporation is a family-owned precision manufacturing company offering a vertically integrated suite of metal forming and machining services. The core offerings include Fine Blanking Services (100-700 ton press capability), Custom Metal Stamping (up to 700 tons), CNC Machining (milling, turning, EDM, plasma, waterjet), and Plastic Injection Overmolding. Supporting these core capabilities are in-house tooling design and construction, precision secondary operations (welding, double-disc grinding, deburring), and engineering services for design-for-manufacturability. The company operates from a 170,000 sq. ft. facility in Broadview, IL, serving automotive, industrial, HVAC, hand tool, and appliance OEMs with ready-to-install components and assembled parts.

Differentiator

Problem solved

Functional benefit

Products and services

• Fine Blanking Services Precision metal forming using high-pressure clamping, controlled counterpressure, and near-zero die clearance to produce parts with smooth fully sheared edges, excellent flatness, and tight dimensional control, with press capability from 100 to 700 tons. Used by automotive OEMs, Tier 1 suppliers, and industrial manufacturers for safety-critical and high-tolerance components.
• Custom Metal Stamping Conventional and progressive die metal stamping services for complex geometries at scale, operating presses up to 700 tons with bed sizes up to 10 feet. Used by OEMs and Tier 1 suppliers for high-volume production of metal components.
• CNC Machining Services Precision CNC machining including milling, turning, EDM (Electrical Discharge Machining), plasma cutting, and waterjet cutting for tight tolerances and complex part geometries. Used by OEM customers to finish critical surfaces, bores, and tight mating features on stamped and fine blanked components.
• Plastic Injection Overmolding Plastic injection overmolding services combining metal and plastic components for enhanced grip, vibration damping, protection, and multi-material functionality. Used by hand tool, automotive, and industrial OEM customers.
• In-House Tooling Complete tool room capabilities for die design, construction, and maintenance including EDM, CNC, lathes, grinders, and mills, supporting fine blanking and stamping customers from concept through production.
• Precision Welding Services Robotic and ASME-certified precision welding services with controlled heat input for dimensional stability and joint integrity in automotive and structural applications.
• Double-Disc Grinding Precision grinding removing material from both sides simultaneously to maintain parallelism and uniform thickness for tight tolerance requirements on stamped and machined components.
• Deburring and Edge Conditioning Edge conditioning services controlling burr height and edge break for improved assembly fit, seal performance, and coating adhesion on stamped and fine blanked components.
• Automated Assembly Automated and semi-automated assembly operations including orbital riveting, tapping, hardware insertion, and sub-assembly for ready-to-install components delivered to OEM customers.
• Engineering Services Design-for-manufacturability (DFM) support, material selection consultation, tolerance optimization, and tool geometry review during product development for OEM and Tier 1 customers.

Named customers6 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Mayville Engineering Company (MEC): Public US contract manufacturer providing metal stampings, castings, machining, and assembly to industrial and automotive OEMs. Closely comparable in vertically integrated metal forming and secondary operations serving similar end markets.
• Oberg Industries: Private precision metal stamper with in-house tooling, die manufacturing, and machined components serving medical, industrial, and automotive customers. Directly comparable in fine blanking capability and toolroom-driven model.
• NN, Inc. Precision metal components and assemblies manufacturer serving automotive, industrial, and medical end markets. Comparable in precision metal stamping and engineered component manufacturing for OEM customers.
• Martinrea International: Public Canadian automotive metal forming and assemblies supplier producing body structures, chassis, and powertrain components. Comparable in automotive metal stamping and Tier 1 supply position, though at materially larger scale.
• Gestamp: Global Spanish automotive metal components specialist producing body-in-white, chassis, and mechanisms for OEMs. Directly comparable in automotive precision metal stamping and Tier 1 supply.
• Shiloh Industries: Automotive metal stampings and lightweighting solutions supplier producing body panels, structural components, and noise/vibration solutions. Comparable in automotive precision stamping and engineered assemblies, restructured post-2021.

Broad incumbents

• Magna International: World's largest diversified automotive Tier 1 supplier, and also an existing PMC customer (Camaro convertible substructure). Overlaps with PMC across metal forming and body/chassis manufacturing but operates a vastly broader product portfolio.
• BorgWarner: Global automotive powertrain and drivetrain Tier 1 supplier, also an existing PMC customer. Comparable in automotive precision metal components for powertrain applications, though BorgWarner focuses on full propulsion system integration.
• Precision Castparts Corp. Berkshire Hathaway-owned manufacturer of complex metal components for aerospace, power, and industrial markets. Comparable in precision metal components manufacturing for regulated OEM customers, but at vastly greater scale and portfolio breadth.
• Aisin: Japanese Tier 1 automotive components supplier producing drivetrain, body, chassis, and engine parts. Comparable in precision metal stamping for OEMs, though with a broader product portfolio and primarily serving Japanese transplants and Asian OEMs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/principal-manufacturing-corporation
• Xx.com/principalmfg
• Facebookfacebook.com/principal-manufacturing-104683972930927

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Principal Manufacturing Corporation