R.C. Coil Spring Manufacturing Company

What R.C. Coil Spring Manufacturing Company does

R.C. Coil Spring Manufacturing Company, Inc. is a privately held custom manufacturer of precision springs, wire forms, metal stampings, four-slide parts, and Wire EDM services, founded in 1972 and headquartered in a 57,000 square foot facility in Glendale Heights, Illinois. The company operates nine core product lines spanning compression, extension, tapered, torsion, and rectangular springs, plus metal stampings, wire forms, wire rings, and Wire EDM services. Its technical differentiation centers on specialized rectangular spring forming machinery (originating from its founding work on automobile starter drive springs), fine wire processing from .004 to .156 inch diameter, multi-material expertise (including 302/304/316 stainless, music wire, phosphor bronze, beryllium copper, chrome silicon, and Martensite M-130), and tight tolerance capability from ±0.001 to ±0.010 inches. In 2014 the company acquired Masterite Tool, Inc., adding Mitsubishi FX20 and 110C Wire EDM machines and a Moore #3 Jig Grinder, with former owner David Tomek joining to lead the Wire EDM department.

The company serves industrial customers across medical, aerospace, automotive, electronics, and defense/firearms sectors, with documented production volumes ranging from 10,000 units per release (aerospace hardness gauge springs) to 20 million units annually (electronics heat sink clips). It operates an ISO 9001:2015 certified quality management system with RoHS, REACH, and DFARS compliance, and provides in-house testing (visual, dimensional, load, rate) plus passivation and finishing services. Revenue is generated through a quote-driven, project-based custom manufacturing model with payment terms of 1/2% discount Net 30 for qualified customers verified via Dun & Bradstreet. The company markets primarily through its website and project showcase, sells direct to enterprise customers domestically (no distributors or resellers), and ships nationwide to locations including Hawaii, California, Texas, Illinois, and Arizona. There is no external funding, no parent company, and no venture capital backing disclosed.

Name

R.C. Coil Spring Manufacturing Company

Legal name

R.C. Coil Spring Manufacturing Company, Inc.

Website

https://rccoilspring.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

R.C. Coil Spring Manufacturing Company is a privately held custom precision spring and wire form manufacturer based in Glendale Heights, Illinois, serving medical, aerospace, automotive, electronics, and defense customers with tolerances as tight as ±0.001 inches.

Ownership category

akta.pro rank

Product category

Precision Spring Manufacturing

NAICS

Spring Manufacturing (332613), Spring and Wire Product Manufacturing (3326), Other Fabricated Wire Product Manufacturing (332618), Custom Roll Forming (332114)

SIC

Sheet Metal Work (3444), Screw Machine Products (3451)

akta.pro primary industry

Metal Forming & Fabrication Machines (Presses, Bending, Shearing, Stamping) (IMAHADAC)

akta.pro secondary industry

EDM & Electrochemical Machining (Wire/Sinker EDM, ECM) (IMAHADAF)

Keywords

• Precision spring manufacturing
• Custom wire forms
• Metal stamping services
• Wire EDM machining
• Four-slide parts

Headquarters

HQ city

Glendale Heights

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, Marketing or Sales, Technology or R&D, Others

Revenue model

1. Custom Manufacturing Services: R.C. Coil Spring generates revenue through custom manufacturing of precision springs, wire forms, metal stampings, and four-slide parts. The company operates on a project-based, quote-driven model where customers submit specifications and receive pricing for custom parts. Manufacturing is performed to customer prints with varying production volumes, from small prototype runs to high-volume production (e.g., 5 million units annually for automotive applications).

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

R.C. Coil Spring Manufacturing Company is a custom manufacturer specializing in precision springs (compression, extension, tapered, torsion/double torsion, rectangular), metal stampings, wire forms, four-slide parts, wire rings, and wire EDM services. The company designs, develops, and produces custom components to customer prints from prototypes to high-volume production runs (up to 20 million units annually). Operations are run from a 57,000 square foot manufacturing facility in Glendale Heights, Illinois, using compression spring machines, CNC coiling machinery, four-slide presses, punch presses, and Mitsubishi Wire EDM equipment.

Product overview

R.C. Coil Spring Manufacturing Company is a custom manufacturer specializing in precision springs, metal stampings, wire forms, and wire EDM services. The company's core product portfolio consists of nine distinct product lines: Compression Springs, Extension Springs, Tapered Springs, Torsion/Double Torsion Springs, Rectangular Springs, Metal Stampings, Wire Forms, Wire Rings, and Wire EDM Services. These products serve diverse industries including automotive, aerospace, medical, defense, and electronics. The company operates from a 57,000 square foot manufacturing facility in Glendale Heights, Illinois, with over 50 years of experience in precision manufacturing using compression spring machines, fourslide equipment, and CNC coiling machinery.

Differentiator

Problem solved

Functional benefit

Products and services

• Compression Springs

Quantifiable outcome

• 5 million chrome silicon springs produced annually for automotive with ±0.010 tolerance consistency from first part to last
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Masterite Tool, Inc.coreTechnology or IntegrationAcquisition of Masterite Tool, Inc. (formerly Franklin Park, IL) enhanced R.C. Coil Spring's Wire EDM capabilities with Mitsubishi FX20 Wire EDM (14 x 20 work envelope, auto-threading), Mitsubishi 110C Wire EDM (12 x 18 work envelope), and Moore #3 Jig Grinder. The acquisition brings 26 years of tool and die experience through former owner David Tomek who joined as Wire EDM Department lead.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Barnes Group (Associated Spring): Global engineered components company whose Associated Spring/Spec注 compression and torsion springs, and custom metal formed solutions. Directly comparable product set, but operates as a diversified, publicly-traded industrial conglomerate with far greater scale.
• Lee Spring: Large catalog and custom spring manufacturer offering compression, extension, torsion, and wire forms across thousands of SKUs. Directly comparable to R.C. Coil Spring on core spring products, but operates at substantially larger scale with broader distribution.

Direct peers

• Spring Engineers of Houston: Custom spring and wire form manufacturer serving oil & gas, aerospace, and industrial OEMs with tight-tolerance requirements. Comparable product capabilities and custom manufacturing model, though focused more on heavy-duty/industrial springs.
• Century Spring: Long-established custom and stock spring manufacturer offering compression, extension, torsion, and wire forms. Directly comparable core product line to R.C. Coil Spring, with a similarly broad industrial customer base.
• All-Rite Spring Company: Mid-sized custom spring and wire form manufacturer serving industrial OEM customers. Comparable scale, product mix (compression, extension, torsion, wire forms, stampings), and custom quoting model.
• Master Spring & Wire Form: Custom manufacturer of springs, wire forms, and stampings serving automotive, appliance, and industrial customers. Comparable mid-market custom manufacturing focus to R.C. Coil Spring's core spring and wire form business.
• Smalley Steel Ring Company: Specialty manufacturer of retaining rings, wave springs, and constant-section rings. Highly comparable to R.C. Coil Spring on tight-tolerance custom spring manufacturing for industrial OEM customers, with a similarly specialized product focus.
• Vulcan Spring & Manufacturing: Custom manufacturer of springs, wire forms, and stampings serving medical, industrial, and consumer markets. Closely comparable in scope and customer mix to R.C. Coil Spring's mid-sized custom spring business.
• Adrian Wire: Custom wire form and four-slide manufacturer serving automotive, furniture, and industrial markets. Highly comparable to R.C. Coil Spring on four-slide, wire forming, and stamping capabilities.

Emerging players

• Helical Products Company: Specialty manufacturer of custom coil springs, machined springs, and wire forms with emphasis on engineered solutions for aerospace and medical. Comparable custom precision spring capability but with stronger engineered-solutions positioning.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/r.c.-coil-spring-manufacturing-company-inc.

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 R.C. Coil Spring Manufacturing Company