Key Facts & Top Suppliers in the U.S. Machining Industry

Every automobile, aircraft, and piece of industrial equipment built in America depends on a layer of precision partners most people never see: the CNC shops and job shops that turn raw metal and plastic stock into finished components. Machining is one of the broadest and most foundational capabilities in U.S. manufacturing, supporting industries ranging from aerospace and defense to automotive, medical devices, and food processing.

This article examines the current state of the industry using data collected directly from U.S. machining 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 the U.S. Machining Sector

MNI, compiler and publisher of industrial business profiles for the U.S. industrial sector and informational engine behind IndustryNet, surveyed the nation’s thousands of companies in the machining industry, directly collecting key data points on this powerful industry for 2026. 

• There are currently 3,600+ machining suppliers listed across MNI's database of manufacturers and suppliers.
• Those companies collectively employ more than 86,000 workers nationwide.
• Total reported sales among companies reach approximately $12.1 billion.
• Nearly 18% of suppliers distribute their products or services internationally.
• Roughly 7% of suppliers import raw materials from outside the United States.
• The average machining supplier operates out of approximately 28,000 square feet of facility space.
• The average U.S. machining company has been in business for 42 years, with a median founding year of 1986.
• The Midwest leads the industry geographically, accounting for nearly 30% of all suppliers. The West follows at 27%, the South at 23%, and the Northeast at 20%. California leads all states with 481 suppliers, followed by Michigan (224), Texas (196), Illinois (179), and Pennsylvania (168)

Largest Machining Companies in the United States

The following companies represent the largest machining suppliers in the United States by workforce size. Their scale reflects decades of investment in equipment, certifications, and customer relationships across some of manufacturing's most demanding end markets.

About the Largest Machining Companies in the U.S.

Rock Island Arsenal
Rock Island, IL | 800 Employees

Operating since 1862 out of a 6.3 million-square-foot facility, Rock Island Arsenal is a large-scale military manufacturing and machining operation supporting artillery systems, equipment integration, and spare parts and tool sets for the U.S. armed forces. Reported annual sales stand at approximately $70 million.

HyPro, Inc.
Waterford, WI | 700 Employees

Founded in 1969, HyPro serves as a corporate headquarters for custom precision machining and subcontract assembly work, distributing internationally from a 100,000-square-foot facility. The company reports annual sales of approximately $150 million.

MOBEX Global
Albion, IN | 570 Employees

Established in 1997, MOBEX Global specializes in CNC production machining of complex castings and forgings for the automotive, agricultural, diesel engine, and durable goods industries. The company holds TS16949 and ISO 14001 certifications and operates from a 68,500-square-foot facility, with reported annual sales of approximately $125 million.

Major Tool & Machine, Inc.
Indianapolis, IN | 400 Employees

Founded in 1946, Major Tool & Machine provides complex fabrication and precision machining for highly engineered applications across the aerospace, defense, energy, nuclear and power generation, launch vehicle, and transportation industries. The company holds ISO 9001:2015 and AS9100 certifications, operates from a 600,000-square-foot facility, and reports annual sales of approximately $100 million.

Modern Industries, Inc.
Phoenix, AZ | 400 Employees

Established in 1969, Modern Industries produces complex electromechanical assemblies for the semiconductor industry along with precision machining and assembly work for the aerospace industry, distributing on a national basis.

Tecomet, Inc.
Wilmington, MA | 400 Employees

Founded in 1964, Tecomet serves as corporate headquarters for precision machining, net shape forging, photochemical etching, and rapid prototyping of critical components and complex assemblies for the medical implant, aerospace, and defense industries. The company holds ISO 9001, ISO 13485, and AS9100 certifications and reports annual sales of approximately $520 million, the highest of any company in this dataset.

Acutec Precision Aerospace, Inc.
Meadville, PA | 378 Employees

Established in 1988, Acutec Precision Aerospace provides vertically integrated aerospace systems work, including milling, grinding, turning, complex machining, NADCAP-certified nondestructive testing, and chemical processing, from a 360,000-square-foot facility. The company holds ISO 9001:2015 and multiple AS9100 certifications and reports annual sales of approximately $75 million.

ZF Lemforder Corp.
Lapeer, MI | 350 Employees

Founded in 1990, ZF Lemforder operates a production assembly and machining job shop out of a 60,000-square-foot facility, distributing internationally as part of a global automotive supply chain.

ComDel Innovation, Inc.
Wahpeton, ND | 330 Employees

Established in 2007, ComDel Innovation provides precision machining and tooling for automation applications, including production machining, plastic injection-molded components, metal stampings, and design and engineering services. The company holds ISO 9001, ISO 14001, and ISO 13485 certifications and reports annual sales of approximately $48 million.

Momentum Manufacturing Group
Saint Johnsbury, VT | 330 Employees

Founded in 1982, Momentum Manufacturing Group combines sheet metal fabrication with precision machining, powder coating, and assembly services from a 90,000-square-foot facility. The publicly held company holds ISO 9001:2008 certification and reports annual sales of approximately $220 million.

IndustryNet's Top Machining Suppliers to Know

The suppliers below represent some of the strongest machining capabilities listed on IndustryNet, spanning general job shops, Swiss-type specialists, and aerospace-certified operations. Company size and focus vary widely across the group, from single-employee shops built on decades of niche experience to operations running dozens of CNC centers for regulated industries. Together, they illustrate the range of materials, tolerances, and certifications buyers can expect to find across the U.S. machining supply base.

Swiss Automation, Inc.
Barrington, IL

Swiss Automation is a large-scale precision turned-components specialist known for Swiss-type CNC machining and tight-tolerance production, serving the medical and aerospace and defense markets. The company holds ISO 9001:2015 and ISO 13485:2016 certifications and is ITAR compliant.

I D Machine, Inc.
Hankinson, ND

Established in 1964, I D Machine is a long-running, family-owned machining and welding job shop that has been in business for more than 60 years, providing precision machining and small repair work out of a 15,000-square-foot facility.

Tooling Solutions Worldwide
Watertown, SD

Tooling Solutions Worldwide is an all-purpose machine shop built for flexibility, running everything from one-off prototypes through medium-volume production with fast turnaround. The company offers finishing options including heat treat, plating, anodizing, paint, and powder coat.

Batten Tool & Machine, Inc.
Burnsville, MN

Founded in 1994, Batten Tool & Machine is a precision CNC machining and tool and die job shop specializing in milling and turning services from prototype through full production. The company focuses on difficult materials, including Nitronic 60, 316 and 304 stainless steels, 17-4PH stainless, titanium, tool steels, and a range of aluminum, brass, and select plastics.

Brico Engineering Co.
Torrance, CA

Brico Engineering supplies precision machined parts and assemblies for the global aerospace market, a role it has held since 1964. The company offers CNC milling, turning, and assembly services and holds ISO 9001:2015 and AS9100D certifications, along with inspection, quality control, and supply chain support for aerospace and related industrial applications.

Custom Aluminum Products, Inc.
South Elgin, IL

Custom Aluminum Products stands out for pairing aluminum extrusion with downstream fabrication and finishing, offering an integrated set of services that includes fabrication, painting, anodizing, and assembly. The company holds ISO 9001:2015 and ISO 45001:2018 certifications.

KLM Machining, Inc.
Sussex, WI

KLM Machining is a CNC job shop built around multi-axis and 5-axis machining for prototype, low-volume, and higher-volume production. Operating from a 25,000-square-foot facility with 45 employees, the company's capabilities span CNC machining, metal machining, and aerospace machining.

M's Machine & Mfg. Co., Inc.
Monona, IA

M's Machine & Mfg. is a precision CNC machining job shop providing milling, turning, drilling, tapping, and related machining services for metal and plastic parts. The company supports prototype, low-volume, and production runs for agricultural, automotive, industrial, and medical customers and maintains ISO 9001 certification.

Product Mfg., Inc.
Canby, OR

Product Mfg. is a full-service precision machining company offering CNC milling up to 63 by 160 inches and CNC turning through 55-inch diameters. Four-axis and other CNC machining centers allow the company to produce large, complex parts across a wide range of metals and alloys, supported by engineering, design, and fabrication services aligned with ISO quality standards.

Sturdy Built Manufacturing, LLC
Denver, PA

Sturdy Built Manufacturing pairs precision CNC machining with metal fabrication services including sheet metal and tube fabrication, welding, drilling, tapping, bending, forming, punching, and assembly support. The company also produces galvanized stainless-steel equipment for dairy, food processing, and other sanitary applications.

Tibor Machine Products, Inc.
Bridgeview, IL

Tibor Machine Products is a Midwest precision machining partner with more than 50 years of experience providing fully machined components for a wide range of industrial needs. The company uses advanced CNC lathes along with vertical and horizontal machining centers to produce parts from bar stock, castings, forgings, and alloy steels.

TWH Enterprises, LLC
Batesville, AR

Located in the Ozarks, TWH Enterprises pairs CNC machining with precision sheet fabrication and additional services such as laser engraving and rapid prototyping. The company holds ISO 9001 and AS9100 certifications and operates from a 62,000-square-foot facility with 35 employees.

Valley Tool, Inc.
Water Valley, MS

Established in 1997, Valley Tool is a precision machine job shop providing CNC milling, turning, drilling, and tapping services, along with parts certification, sub-assembly, and repair work. The company operates facilities totaling more than 50,000 square feet and also offers dunnage and reusable container washing.

C & R Mfg., Inc.
Shawnee, KS

C & R Mfg. provides precision machining, including CNC lathes and milling, alongside robotic welding, waterjet cutting, and laser marking, with a focus on just-in-time delivery for its customers.

Harbor Island Machine Works, Inc.
Seattle, WA

Harbor Island Machine Works is a general machining job shop with capabilities in large vertical turning, horizontal milling, and blanchard grinding, serving customers that need larger-format precision work.

Hi-Standard Machining Co., Inc.
Racine, WI

Hi-Standard Machining manufactures Swiss CNC screw machine products, a specialty suited to high-volume, tight-tolerance parts produced on a continuous basis.

JET Machine, Inc.
Conway, AR

JET Machine specializes in Swiss CNC, standard CNC, and CNC milling work. The company holds ISO 9001:2015 and WBENC certifications.

Mothers Auto and Diesel Machine LLC
Ash Grove, MO

Mothers Auto and Diesel Machine is an automotive machining job shop serving the engine repair and rebuild market.

N.E.W. Industries, Inc.
Sturgeon Bay, WI

N.E.W. Industries manufactures complete, finished CNC production machined parts and machined weldments in both ferrous and non-ferrous metals, plastics, and other materials, working from bar, plate, cast, and forged configurations.

Precision Innovations
Germantown, WI

Precision Innovations provides precision CNC machining, fabrication, and assembly of plastics and nonferrous metals, including custom plastic machine guarding, medical device component parts, and thermoset materials.

Riverside Machine & Automation, Inc.
Genoa, OH

Riverside Machine & Automation combines nickel, titanium, aluminum, and steel sheet metal fabrication with precision CNC machining for the aerospace, automotive, food processing, medical, and glass industries, including CNC milling, turning, grinding, dies, molds, and prototypes.

Ron Grob Precision Machine Co.
Johnstown, CO

Ron Grob Precision Machine specializes in CNC Swiss screw machining of thread-rolled rods and parts, including lathe and vertical mill machining, centerless grinding, honing, and thread rolling services. The company holds ISO 9001:2015 certification.

Schmiede Corporation
Tullahoma, TN

Schmiede Corporation focuses its machining capabilities on military and aerospace customers.

Shamrock Machining, Inc.
Spokane, WA

Shamrock Machining pairs sheet metal fabrication, welding, laser cutting and bending, and 3D printing with precision and CNC machining for prototypes, assemblies, and subcomponents. The company holds ISO 9001:2015 and ITAR certifications.

See all 3,700+ machining suppliers on IndustryNet. 

What Machining Suppliers Do

Machining covers the processes that remove material from metal, plastic, and composite stock to produce a part with a specific dimension, geometry, or finish. It sits at the center of nearly every manufacturing supply chain, since almost no finished product reaches assembly without at least one machined component along the way.

Most suppliers in this sector fall into a few core categories. CNC machining shops use computer-controlled mills, lathes, and multi-axis machining centers to produce parts to tight, repeatable tolerances. Precision and Swiss-type machining specializes in small, high-tolerance parts, often for medical, dental, and instrumentation applications. Traditional job shops offer flexible, lower-volume contract machining across a wide mix of materials and part types, while a smaller segment focuses specifically on prototype and short-run work that supports product development ahead of full production.

At the high end of the market, suppliers with advanced multi-axis and 5-axis capabilities serve the most demanding applications, including aerospace, defense, and medical implants, where certifications such as AS9100 and ISO 13485 are often a requirement to compete for the work. Many suppliers also pair machining with adjacent services such as welding, fabrication, finishing, and assembly, giving customers a single source for a finished part rather than a raw machined blank.

The customer base for machining suppliers is wide-ranging. Aerospace and defense programs drive demand for tight-tolerance, certified work, automotive and agricultural equipment manufacturers rely on machining for both prototype and production runs, and medical device makers depend on precision shops for implantable and surgical components. Industrial equipment, energy, and food processing round out a customer list that touches nearly every corner of the economy.

What to Look for in a Machining Supplier

Finding a machining suppliers that meets your specific criteria and specifications can be tricky. Let’s rundown some key factors to consider when choosing a partner for your project:

• Capabilities: Does the shop possess the necessary machinery and expertise to handle your specific needs? This includes factors like material compatibility, tolerance requirements, and production volume.

• Quality Control: A commitment to quality is paramount. Look for certifications and a proven track record of meeting tight tolerances. Inquire about their inspection processes and quality control procedures.

• Communication and Customer Service: A reliable machining supplier should be a communicative partner. They should be able to clearly explain their processes, answer your questions promptly, and keep you updated on project progress.

• Experience: An established shop with a proven track record in your industry is a valuable asset. They'll have the experience and know-how to tackle your specific challenges and suggest potential optimizations.

• Technology: Modern machining shops leverage advanced technologies like Computer Numerical Control (CNC) machines and sophisticated design software. This ensures precision, efficiency, and repeatability in production.

By carefully considering these factors, you can find a US-based machining supplier that meets your project requirements and becomes a trusted partner.

Where to Find Machining Suppliers

Looking for machining suppliers? IndustryNet can help you narrow down your search for a domestic machining supplier or any other type of local industrial supplier. Perform searches by company type, distribution, geography, specialty, and even ISO standards. Search, sort, and quote for free on America’s most-trusted industrial marketplace.