Top Spring Suppliers in the U.S.A.

They are among the simplest mechanical devices ever conceived, and among the most indispensable. Springs store elastic energy when deformed and release it when the load is removed, a behavior so useful and so reliable that precision springs find their way into everything from surgical instruments and aerospace actuators to garage door mechanisms and heavy rail equipment. The engineering that goes into a production spring, the wire diameter tolerances, the alloy selection, the heat treatment, the surface finish, bears no resemblance to the commodity product the end user rarely thinks about.

The U.S. springs industry is a mature, technically demanding sector with deep roots in American precision manufacturing and a customer base that spans virtually every segment of the industrial economy. This article examines the current state of the industry using data collected directly from U.S. spring manufacturers and suppliers, explores the key trends shaping the sector in 2026, and highlights the largest companies and top suppliers serving manufacturers across the country.

Key Facts on U.S. Springs Suppliers

MNI, compiler and publisher of industrial business profiles for the U.S. industrial sector and the informational engine behind IndustryNet, directly collects key data points on this essential industry. The following are key findings drawn from MNI's direct, company-by-company verification of U.S. springs suppliers.

• There are currently 360+ springs manufacturers & suppliers listed across MNI's database of manufacturers and suppliers.
• Those companies collectively employ more than 16,300 workers nationwide.
• Total reported sales among companies with available data reach approximately $8.6 billion.
• Nearly 49% of suppliers distribute internationally, reflecting the global reach of the aerospace, automotive, and defense supply chains this industry serves.
• Nearly 20% of suppliers import raw materials from outside the United States.
• The average springs supplier operates out of approximately 54,800 square feet of facility space.
• The average U.S. springs company has been in business for 62 years, with a median founding year of 1971, reflecting a sector built on deep engineering expertise and long-standing customer relationships.
• 36% of suppliers hold ISO or related quality certifications, one of the highest rates of any industrial manufacturing category, consistent with the precision-driven and regulated-market character of spring manufacturing.
• Women-owned businesses represent 2.6% of the sector; minority-owned businesses account for 0.9% and veteran-owned businesses for 1.1%.
• The Midwest leads the industry at 37%, followed by the South at 24%, the West at 20%, and the Northeast at 19%. California leads all states with 40 suppliers, followed by Illinois (32), Michigan (27), Ohio (26), Texas (25), and Connecticut (23), whose disproportionate count reflects the deep precision spring manufacturing heritage of the Bristol and New Britain industrial corridor.

Largest Springs Companies in the U.S.

The following companies represent the largest springs manufacturers and suppliers in the United States by workforce size. Their scale reflects decades of investment in coiling and forming equipment, quality systems, and the engineering capabilities required to serve high-specification customers across automotive, aerospace, and industrial markets.

IndustryNet's Top Springs Suppliers

Beyond the largest operations, a broad network of regional and specialty spring shops serves manufacturers with custom engineering capability, fast turnaround, and the process expertise that precision spring applications demand. Many of these suppliers have served their markets for decades, building deep knowledge of specific spring types, materials, and end-market requirements.

Ace Wire Spring & Form Co., Inc.
McKees Rocks, PA

Ace Wire Spring & Form Co. produces custom precision compression springs, extension springs, torsion springs, and wire forms, providing engineering design assistance to customers developing new applications or optimizing existing spring programs.

Master Spring & Wire Form Co.
Roselle, IL

Master Spring & Wire Form Co. operates as a custom wire form and spring manufacturer under ISO 9001:2015 certification, serving industrial and commercial customers in the Chicago metropolitan area and broader Midwest market.

R & L Spring Company
Lake Geneva, WI

R & L Spring Company produces compression, extension, torsion, and wire forms alongside fourslide components, serving manufacturers across a range of industries from its Wisconsin facility.

Bloomingburg Spring & Wire Form
Bloomingburg, OH

Bloomingburg Spring & Wire Form produces custom precision springs and formed wire products for industrial and commercial customers, operating as a regional specialty shop in the Ohio manufacturing corridor.

Coiling Technologies, Inc.
Houston, TX

Coiling Technologies produces custom springs under ISO 9001:2015 certification, serving industrial customers across the Gulf Coast and broader southern market from its Houston facility.

Diamond Wire Spring Co.
Pittsburgh, PA

Diamond Wire Spring Co. is an ISO 9001:2015 certified custom spring manufacturer operating from multiple facilities, with its Pittsburgh, Pennsylvania, location serving the Appalachian and Mid-Atlantic industrial market.

Diamond Wire Spring Co.
Taylors, SC

Diamond Wire Spring Co.'s Taylors, South Carolina, facility extends the company's custom spring manufacturing capacity into the Southeast, serving industrial and automotive customers in the growing Carolinas manufacturing market under ISO 9001:2015 certification.

Diamond Wire Spring Co., Southwest Plant
Tyler, TX

The Tyler, Texas, facility of Diamond Wire Spring Co. brings the company's ISO 9001:2015 certified custom spring manufacturing capability to the South-Central market, serving industrial customers in Texas and surrounding states.

Iowa Spring Mfg. & Sales, Inc.
Adel, IA

Since 1977, Iowa Spring Mfg. & Sales has specialized in engineering, designing, manufacturing, and delivering large, heavy-duty metal springs for the agricultural equipment, mechanical equipment, and overhead garage door industries, serving a specialized market that requires springs built for high-load, high-cycle applications.

Ironmonger Spring Div.
Walton, IN

Ironmonger Spring produces round wire compression, extension, and torsion springs alongside wire forms and component assemblies, serving industrial and commercial customers in the Indiana manufacturing market.

Lewis Spring & Mfg. Co.
Niles, IL

Lewis Spring & Mfg. Co. produces precision springs, wire forms, stampings, and assemblies, supporting customers from prototype through PPAP and production, with capabilities suited to automotive and industrial supply chain requirements.

Royal Coil, Inc.
Woodstock, IL

Royal Coil manufactures springs, wire rings, and metal components under ISO 9001:2015 certification, serving industrial and commercial customers in northern Illinois and the broader Midwest market.

Tri-Matic Spring, Inc.
Savannah, TN

Tri-Matic Spring produces industrial wire and automotive springs, serving manufacturers in the Tennessee automotive supply chain and adjacent industrial markets from its Savannah facility.

All Rite Spring Co.
Spring Grove, IL

All Rite Spring Co. designs, prototypes, and manufactures spiral torsion, compression, extension, torsion, clock, and wire form springs alongside assemblies, stampings, and wire and metal insert and injection-molded components, and holds capability for safety-critical and DFARS manufacturing applications.

Barber Spring, a Wabtec Components LLC
Pittsburgh, PA

Barber Spring is a manufacturer of large industrial and railroad springs, serving the rail transportation and heavy industrial market with high-load spring components built to the demanding specifications of freight and transit applications.

Die, Mold & Automation Components, Inc., N-Forcer
Dearborn, MI

In business since 1986, Die, Mold & Automation Components produces nitrogen gas springs under the N-Forcer brand, serving the die and mold industry with gas spring components used in stamping dies and plastic injection molds.

Spiros Industries
West Bend, WI

Spiros Industries produces compression, extension, torsion, double-torsion, and wire form springs, serving industrial and commercial customers in Wisconsin and surrounding markets with a broad range of spring types from a single source.

Alcan Spring
Grand Junction, CO

Alcan Spring manufactures automotive leaf springs and distributes aftermarket suspension upgrades and aftermarket parts, serving the vehicle suspension market in the Mountain West with both OEM-style replacement springs and performance-oriented suspension components.

Alfred & William, Inc.
Union, NJ

Alfred & William produces steel machine springs for industrial customers, serving the New Jersey and greater New York manufacturing market with machine-grade spring components.

Atlantic Spring, an MW Industries
Ringoes, NJ

Atlantic Spring is a full-range custom spring, wire form, and assembly manufacturer serving the aerospace, military and defense, power generation, automotive, and industrial valve markets, operating as part of the MW Industries platform with a focus on high-specification and regulated-market applications.

Eureka Spring Co.
Newark, NJ

In business since 1908, Eureka Spring Co. brings more than 115 years of spring manufacturing experience to customers across all types of machinery, producing quality custom precision springs and wire forms with a depth of process knowledge accumulated over more than a century of continuous operation.

MW Industries, Inc.
Columbus, OH

MW Industries produces flat and wire form springs and stampings from its Columbus, Ohio, facility, serving industrial customers as part of one of the larger spring manufacturing platforms in the United States.

New England Spring
Bristol, CT

New England Spring produces springs, wire forms, and metal stampings from Bristol, Connecticut, a city with one of the longest spring manufacturing traditions in the country, serving industrial and commercial customers in New England and beyond.

WCS Industries
Muskego, WI

WCS Industries produces precision metal components including springs, cold-headed parts, screw-machined components, leg levelers, and wire forms, offering customers a broader range of precision metal components than a single-focus spring shop can provide.

Winamac Coil Spring, Inc.
Kewanna, IN

Winamac Coil Spring produces compression, extension, wire form, and torsion springs for industrial and commercial customers, serving manufacturers in northern Indiana and the broader upper Midwest from its Kewanna facility.

What Springs Suppliers Do

Spring manufacturers design and produce mechanical components that store and release elastic energy, using the properties of metal wire, strip, or bar stock to achieve a precise force-deflection relationship suited to a specific application. The work spans a wide range of spring types, wire sizes, materials, and end markets, and the engineering involved in a production spring program is often more complex than the finished part's apparent simplicity would suggest.

The most common spring types include compression springs, which resist a compressive load along their axis and are used in virtually every mechanical assembly that requires a return force; extension springs, which store energy when stretched and are used in applications requiring a pulling force; and torsion springs, which exert a rotational force when twisted and are found in hinges, door closures, and mechanical actuators. Beyond these core types, the industry produces constant-force springs, clock springs, leaf springs, disc springs, gas springs, and flat springs, each suited to specific load, travel, and space requirements.

Wire forms are a closely related product category produced on many of the same machines. These are bent wire components that may or may not function as springs, used as clips, hooks, brackets, guides, and retaining elements in assemblies across automotive, appliance, electronics, and industrial applications. Many spring shops offer wire forms alongside their spring programs, giving customers a single source for both product types.

Material selection is central to spring engineering. Carbon steel wire is the most common material for general industrial springs, while stainless steel is specified for corrosion resistance in food processing, medical, and outdoor applications. Inconel, titanium, beryllium copper, phosphor bronze, and other specialty alloys are used in aerospace, high-temperature, and precision instrumentation applications where conventional materials cannot meet the required performance. Shot peening, heat treating, plating, and powder coating are among the post-production processes that extend spring life and adapt the finished component to its operating environment.

The industries served reflect the universal mechanical nature of the product. Automotive, aerospace and defense, medical devices, industrial equipment, electronics, appliances, energy, and rail transportation all depend on spring manufacturers for components that must perform reliably across millions of cycles, often in demanding environments where failure is not an option.

Key Trends in Spring Manufacturing 

1. Aerospace and Defense Demand Supporting High-Specification Shops

Sustained growth in commercial aircraft production, combined with elevated defense budgets and expanding space industry activity, is maintaining strong demand for precision springs in aerospace and defense applications. These programs require springs produced from demanding alloys, processed under documented quality systems, and certified to AS9100 standards, which narrows the field of qualified suppliers and supports premium pricing for shops that have made the necessary investments. Shops with aerospace certifications and experience in titanium, Inconel, and beryllium copper spring production are finding this segment among the most stable and margin-favorable in the market.

2. Automotive Electrification Reshaping Spring Program Mix

The transition toward electric vehicles is changing the composition of automotive spring demand. EVs eliminate some of the valve springs, clutch springs, and transmission springs associated with internal combustion powertrains while introducing new spring requirements in battery management systems, charging connector mechanisms, thermal management components, and seat and interior mechanisms. Spring manufacturers with diversified automotive programs are adapting product mixes to follow these shifts, and those with engineering capability to support new EV-specific applications are building new program relationships with automotive customers navigating the same transition.

3. Medical Device Growth Driving Miniaturization Requirements

Demand for springs used in surgical instruments, minimally invasive devices, drug delivery systems, diagnostic equipment, and implantable components continues to grow as the medical device market expands. Medical spring applications typically involve small wire diameters, exotic alloys, tight tolerances, and ISO 13485 quality system requirements, creating a high-specification market segment that rewards shops with the equipment precision, material expertise, and documentation capability to meet medical customer expectations. The barrier to entry in medical springs is real, but the customer relationships and margins available to qualified suppliers make it one of the more attractive segments in the industry.

4. Reshoring Returning Spring Programs to Domestic Manufacturers

Spring manufacturing was among the categories heavily offshored in the 2000s and 2010s, particularly for automotive and consumer product applications where cost pressure drove sourcing to lower-cost international suppliers. Quality issues, intellectual property concerns, longer lead times, and supply chain disruptions have prompted a meaningful number of buyers to requalify domestic spring sources for programs previously produced overseas. Shops with available capacity, strong quality documentation, and the ability to hit competitive price points on production volumes are actively capturing this returning business, particularly in automotive and industrial markets where offshore supply chain risk has become a more prominent procurement consideration.

5. Material Cost Volatility Affecting Program Economics

Steel wire, stainless steel, and specialty alloy costs have remained volatile, with pricing sensitive to global commodity markets, trade policy, and raw material availability. Spring manufacturers that have developed strong supplier relationships, forward purchasing capabilities, and the ability to substitute materials where engineering tolerances allow are better positioned to manage cost volatility than those with limited flexibility in their material sourcing. Customers increasingly value cost-modeling transparency and material substitution expertise alongside the spring engineering capabilities their suppliers bring to a program.

6. Workforce and Succession Challenges Confronting Family-Owned Shops

The U.S. spring industry has a high proportion of long-established, family-owned operations, and many of those companies are navigating leadership succession as founding and second generations approach retirement. Finding experienced spring engineers, coiling machine operators, and toolmakers is a persistent challenge across the sector, and the institutional knowledge embedded in long-tenured workforces is not easily replaced. Shops investing in training programs, apprenticeship pipelines, and CNC coiling equipment that reduces dependence on manual setup skill are building more sustainable operations than those relying on experienced employees without a succession plan in place.

7. Gas Spring and Specialty Spring Growth Outpacing Traditional Wire Spring Demand

Specialty spring categories including gas springs, disc springs, and constant-force springs are growing faster than traditional round-wire compression and extension spring volume, driven by demand in automation, ergonomic tooling, aerospace actuation, and precision instrumentation applications. Gas springs in particular have expanded significantly in die and mold applications, where they provide consistent and controllable force in a compact format that mechanical springs cannot match. Manufacturers that have developed specialty spring capabilities alongside traditional coiling operations are diversifying their revenue base and accessing market segments with stronger growth trajectories than commodity spring production.

Conclusion

The U.S. springs industry combines a remarkable operating history, averaging more than six decades per company, with technical demands that continue to intensify as the end markets it serves push the boundaries of precision, materials, and regulatory compliance. With 350 suppliers, more than 16,000 workers, and approximately $8.6 billion in reported sales, it is a sector of real scale that operates largely out of sight of the industries that depend on it every day.

As aerospace and medical demand sustain the high end of the market, automotive electrification reshapes program mix, and reshoring returns volume to domestic shops, the spring manufacturers profiled here represent the depth and diversity of capability available across the U.S. supply base. Finding the right spring supplier starts with the application, the alloy, and the tolerance, and the profiles here provide a starting point for that search.

See all 360+ U.S. springs suppliers on IndustryNet.

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About This Data

MNI collects detailed information firsthand, making direct contact with each industrial company in the U.S. to verify multiple data points about their business. This data powers IndustryNet, an industrial sourcing platform connecting buyers with suppliers across thousands of product categories, and IndustrySelect, which offers real-time access to detailed company and executive profiles for sales, marketing, recruiting, and research.