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Last updated: January 2026
This directory lists 52 busbar manufacturers across the United States, from specialty low-volume fabricators providing custom prototypes to high-volume producers for large-scale industrial applications.
Buyers engage busbar manufacturers to solve critical problems in power distribution, such as achieving precise current density control, minimizing electromagnetic interference (EMI) and radio-frequency interference (RFI), and ensuring optimal thermal management within constrained form factors. These manufacturers often provide solutions for managing fault current events and reducing inductance in high-frequency applications, which are paramount for system safety and performance.
The range of busbar suppliers includes custom fabrication shops specializing in intricate form factors and low-volume production runs, manufacturers focused on high-current rigid busbar systems for switchgear and data centers, and specialists in flexible busbars that offer vibration damping and easier assembly. You'll also find manufacturers with deep expertise in various plating options, such as silver for enhanced conductivity or tin for corrosion resistance, and those skilled in advanced insulation systems like powder coating or epoxy impregnation.
52 companies nationwide
Altech Corporation is a USA supplier of industrial control, instrumentation, and automation components. They provide their innovative UL489 Busbar System, designed for jumpering miniature circuit breakers, and offer manufacturing, value-added, and customization services. Altech also provides technical support and design assistance to customers.
Based in Gurnee, IL, American Industrial Co. specializes in precision metal stamping services. With over 30 years of experience, the company manufactures custom-stamped copper or aluminum busbars for safe and reliable power distribution. They serve diverse sectors including automotive, electronics, and construction.
All Metals Fabricating offers bus bar manufacturing and electromechanical assembly. Specializing in precision machining and custom metal fabrication, the company provides laser cutting, CNC punching, CNC machining, and welding. Based in north Texas, they integrate engineering, product design, and finishing, serving telecommunications.
Based in Endicott, NY, Amphenol Interconnect Product Corp specializes in engineered power and interconnect solutions. They manufacture busbars, power cable assemblies, and power connectors for diverse markets. These include datacenter infrastructure, IT/servers, industrial, electric vehicles, and military/aerospace applications.
Based in San Diego, CA, AP Precision Metals, Inc. provides full-scale metal solutions, specializing in high-performance aluminum busbar OEM supply. With over 20 years of experience, the company offers comprehensive services including fabrication, cutting, welding, painting, finishing, and assembly. They leverage innovative methods and skilled technicians to deliver efficient and dependable metal production.
Based in Hudson, NH, Approved Sheet Metal (ASM) is an ITAR Registered and ISO 9001:2015 Certified custom sheet metal fabricator. They offer precision prototype and low-volume production services. ASM specializes in fabricating busbars for switchboards, distribution racks, substations, control panels, and tower grounding, working with materials like steel, aluminum, and stainless steel.
Based in Itasca, IL, Connor Manufacturing specializes in custom-engineered busbars. The company provides vertically integrated manufacturing solutions for electric vehicles and other industrial applications. With facilities across the United States, Connor designs and produces specialized busbar products to meet diverse client needs.
Based in Ontario, CA, DEI Power Solutions specializes in custom busbar manufacturing for efficient, safe, and space-saving power distribution. The company also builds custom electrical panels and UL 891 switchgear, leveraging engineering expertise to provide reliable electrical infrastructure solutions.
Based in Santa Clara, CA, E-Fab specializes in custom metal fabrication using materials like copper, stainless steel, beryllium copper, nickel, and aluminum. The company provides engineering solutions for complex challenges, serving industries that require precision components for electrical connectivity, including custom bus bars.
EAE USA is a manufacturer specializing in busway and busbar solutions for critical power distribution. The company also produces rack cabinets, cable trays, and support systems. They serve diverse sectors including data centers, oil & gas, healthcare, EV charging, and solar installations.
Based in North East, PA, Electric Materials Company is a U.S. copper manufacturer producing high-quality electrical grade copper and fabricated components. They offer busbar solutions, extrusions, castings, and finished parts, serving power distribution, generation, industrial, and nuclear markets.
Based in Richmond, IL, EMS Industrial & Service Company manufactures custom copper and aluminum bus bars. With over 60 years of experience, they offer complete fabrication for high and low voltage requirements. Serving electric vehicles, marine, and power generation industries, their services include bus bar assembly and CNC punching.
Based in North Branford, CT, ESI Engineering Specialties Inc. is an IATF-certified leader in custom metal stamping and assembly services. They manufacture customized bus bars using progressive die stamping techniques. ESI also provides production machining, tool & die making, and custom engineered fasteners for industrial clients.
Based in Benicia, CA, Fabriquick LLC specializes in precision bus bar fabrication using aluminum, copper, and custom configurations. They offer quick-turnaround CNC prototyping, 5-axis CNC machining, and sheet metal services, holding AS9100D, ISO9001, and ITAR certifications.
Based in Crystal Lake, IL, G&M Manufacturing Corporation specializes in precision metal stamping and busbar manufacturing. The company produces custom metal stamped bus bars for various electrical applications. Serving industries like automotive, industrial, electronics, and medical, they emphasize quality and precision with advanced CMM systems.
Based in Glendale, CA, Glenair manufactures insulated and uninsulated flexible busbars using 30 AWG soft-drawn copper wire. These custom-engineered busbars are designed for a wide range of critical electrical applications, forming part of their mission-critical interconnect solutions.
Industrial Fabricators, Inc. is an ISO-certified metal fabricating job shop in Westerville, OH. Specializing in custom busbar fabrication, they provide high-quality, precision-made busbars for diverse electrical needs. With over 50 years of experience, the company operates from a 96,000 sq. ft. facility.
Based in Chicago, IL, Johnson Electric Coil Company manufactures custom copper bus bars for diverse industrial applications. Leveraging in-house capabilities, they provide precision bus bar solutions for both complex designs and high-volume production. The company focuses on delivering reliable, high-quality products tailored to exact client specifications.
Keats Manufacturing specializes in precision metal stamping, offering progressive die and four-slide solutions for demanding parts. The company supports stamped bus bar needs, built with in-house tooling and process control. Serving the automotive, appliance, and hearing aid industries, Keats Manufacturing provides quality metal components from its US facilities.
Kenmode Precision Metal Stamping provides custom busbar manufacturing services, leveraging expertise in progressive die and compound die stamping of red metals and aluminum. The company specializes in producing complex busbars and battery interconnections for various industries.
MAC Products, Inc. specializes in designing and manufacturing custom busbar solutions, fabricating them in copper and aluminum. The company also produces custom DC Switchgear and Distribution Equipment. Serving electric utility, electrified transit, construction, and OEM industries, MAC Products ensures high-quality products, certified ISO9001-2015.
Mason Controls manufactures precision-engineered control systems and components, including aerospace jumpers and bus assemblies. They provide solutions for electrical bonding, power distribution, and grounding applications. Specializing in built-to-print, MIL-Spec products, the company serves aerospace, defense, energy, and industrial automation.
Based in Edinboro, PA, Penn-Union manufactures bus bars from high-quality copper or aluminum. These bus bars are engineered to handle high current loads efficiently, ensuring safe, reliable, and low-loss performance for various electrical applications.
ProtoSpace Mfg, based in Wilmington, NC, custom manufactures copper bus bars. These formed copper strips are essential for current distribution, component mounting, and heat dissipation. The AS9100 and ISO 9001 certified company offers fast 2-3 day lead times and ITAR compliant solutions for aerospace and defense organizations.
Based in Reno, NV, Spartan Power manufactures high-quality busbars and DC power solutions. They specialize in optimizing power distribution and managing high-current electrical connections for diverse applications, including renewable energy, RV, marine, and industrial systems.
SPF America provides precision copper busbar fabrication and assemblies, offering contract manufacturing services since 1977. With in-house capabilities from prototyping to finishing, the company serves diverse industries. These include industrial battery, energy storage, telecommunications, power generation, UPS, data centers, and EV industrial & charging sectors.
Based in Houston, TX, S+S Industries manufactures plated bus bars, specializing in low and medium voltage solutions. They provide comprehensive services including bus bar stamping, bending, and punching, along with proprietary Hyper Plate (tin-on-aluminum) and Power Plate (silver/tin-on-copper) finishing. They serve data center manufacturing and other industries.
Based in Canonsburg, PA, Starline manufactures high-power busway systems, a type of busbar, for robust power distribution. Products deliver 630-6300 amps with IP54/IP65 ratings, serving harsh environments and high-density computing including AI applications.
States Manufacturing Corporation, based in Champlin, MN, specializes in custom bus bar manufacturing. They offer cutting, punching, and forming services for aluminum and copper bus bars, available with tin, silver, nickel, or bare finishes. The company utilizes Solidworks 3D Design and CNC capabilities for precision production.
Vertiv, based in Westerville, OH, designs and manufactures patented Powerbar busway systems and busbar trunking for overhead power distribution. These systems are specifically engineered to provide flexible power solutions for data centers and other critical infrastructure environments.
Based in San Marcos, CA, WaterJet West LLC specializes in custom CNC copper bus bars, offering precision waterjet and laser cutting, and CNC press brake services. They provide prototypes to high-volume contract manufacturing for aerospace, defense, and various industrial applications, working with nearly any material and holding tight tolerances.
Based in Wood Dale, IL, Wiegel Tool Works specializes in manufacturing high-performing stamped and bent busbars. The company provides progressive die heavy and high-speed stamping services for metal parts and assemblies, processing copper, aluminum, ferrous, and exotic metals. They deliver custom components to meet diverse industrial specifications.
LS Cable & System USA, based in Peachtree Corners, GA, manufactures electrical products for commercial, industrial, renewable, and utility markets. The company provides best-in-class low and medium voltage cables, instrumentation, power, control, and Busway systems. Manufacturing operations are located in North Carolina.
MetPlas, based in Southampton, PA, specializes in custom busbar fabrication and manufacturing. The company offers quick-turn, low-volume to high-volume OEM busbar production. With capabilities including punching, stamping, forming, CNC bending, and plating, MetPlas serves diverse industrial customers seeking precision-engineered busbar solutions.
nVent is a global provider of electrical connection and protection solutions, including flexible copper busbars. The company offers bus systems for data centers, networking, and other industrial applications, reinforced by its acquisition of bus systems businesses to serve various infrastructure needs.
Rittal manufactures industrial power distribution solutions, including copper busbar power panels and systems. They integrate innovative busbar power technology into enclosures and IT infrastructure offerings, optimizing AC and DC applications for industrial and energy & power sectors.
Based in Apollo, PA, Composidie Inc. specializes in crafting top-tier metal stamped busbars designed for demanding environments. The company operates as a supplier of stamped metal parts and assemblies, providing essential components for various industrial applications.
ABB Electrification U.S. manufactures advanced electrical distribution products. They specialize in busbar systems, including the SMISSLINE TP touch-proof pluggable socket system, which allows safe, under-voltage component installation and removal. The company provides robust power distribution solutions for industrial and commercial applications across the United States.
Based in Kansas City, MO, Gieske is an experienced custom metal fabricator providing commercial and industrial sheet metal services for over 100 years. They design and fabricate custom bus bars, utilizing advanced technologies such as fiber laser cutting, waterjet cutting, plasma cutting, and sheet metal fabrication.
IMS Buhrke-Olson provides precision busbar stamping services for various custom applications. They specialize in manufacturing metal stamping busbars and custom copper busbars, utilizing their expertise to produce high-quality components for industrial clients.
Pacific Metal Stampings is a metal stamping company specializing in high-quality, precision stamped parts. With over two decades of experience, the company provides custom manufacturing solutions for industrial applications. Their expertise in producing intricate metal components positions them as a strong candidate for busbar manufacturing.
NJ Sullivan is a metal fabrication company based in the Washington D.C. area. They specialize in manufacturing copper busbars, which are integrated into their own electrical products. The company offers diverse metalworking capabilities, serving industrial clients with custom fabrication solutions for various applications.
Based in St. Paul, MN, Quality Tool manufactures copper and aluminum busbars. They specialize in fabrication, lamination, coating, and insulating techniques, alongside stampings, sheet metal fabrication, CNC machining, and assembly. The company provides custom-engineered solutions for industrial, medical, and defense sectors, operating with ISO 9001:2015 certified quality.
Based in Pasadena, TX, Spike Electric Controls provides custom bus bar solutions for efficient power distribution, meeting UL and ISO 9001 standards. The company custom-engineers electrical equipment like switchgear and panel boards for low and medium voltage applications, serving industries such as EVs and solar.
Based in Decatur, TN, Storm Power Components is a custom bus bar manufacturer and supplier. The company supports diverse industries including telecom, generators, rail, radar systems, and aerospace. They operate with AS9100 and ISO 9001:2015 certifications.
Based in Archdale, NC, TXM Manufacturing produces bus bars, including their TMGB (Telecommunications Main Grounding Bar), which forms a foundation for telecom grounding systems. The company also offers a comprehensive range of RF coax cables, fiber optic solutions, and various telecom accessories, serving the telecommunications industry.
Based in North Attleboro, MA, Checon, LLC manufactures high-performance electrical contacts, precious metal alloys, refractory contacts, and bus bar assemblies. The company serves power distribution, switchgear, industrial control, electric power, vehicle, and innovative energy grid markets with over sixty years of expertise.
Exxelia designs and manufactures high-performance passive components and complex subsystems. Specializing in precision mechanics, the company offers tailored laminated, planar, rigid, flexible, powder-coated, and PVC-molded busbars. Exxelia serves various industries, providing robust solutions for demanding applications from its numerous US facilities.
Based in Cleveland, OH, Legrand specializes in busbar and busway solutions for electrical infrastructure. They offer intelligent, space-saving, and customizable options designed for reliable power distribution. Legrand serves commercial and industrial building sectors.
Rogers Corporation manufactures ROLINX® busbars, leading in laminated busbar solutions. Designed for power distribution, these busbars utilize copper or aluminum layers. They serve various specialty applications, including battery energy storage systems, offering advanced materials and co-engineering to enhance system performance and reliability.
Based in Bay City, MI, Mersen is a global expert in electrical power and advanced materials with over sixty years of experience. The company specializes in designing and manufacturing custom laminated bus bars. It leverages its global manufacturing and R&D footprint to provide solutions for various technologies.
Based in Avon Lake, OH, Watteredge LLC specializes in the design and manufacture of copper and aluminum bus bar systems. The company provides custom engineered solutions for high-performance current conductors, serving demanding industries from aerospace to telecommunications with robust and efficient products.
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| Type | Best For | Typical MOQ |
|---|---|---|
| Custom Fabrication Shops | Complex, low-volume designs; rapid prototyping; specialized form factors and materials. | 1-50 units |
| High-Volume Rigid Busbar Producers | Large-scale power distribution; switchgear; data centers; standardized high-current applications. | 500+ units |
| Flexible Busbar Specialists | Vibration-prone applications; thermal expansion compensation; compact battery packs; complex geometries. | 100-1000 units |
| Laminated Busbar Experts | High-frequency, low-impedance power distribution; power electronics; compact integration into systems. | 50-500 units |
Copper offers superior electrical conductivity and mechanical strength, allowing for a smaller cross-section for a given current, but it is significantly heavier and more expensive. Aluminum busbars are lighter and more cost-effective, making them attractive for applications where weight is critical (like EVs) or where larger form factors are acceptable. However, aluminum has lower conductivity, requires a larger cross-section for the same current, and can be more susceptible to oxidation and creep, often necessitating specialized connection methods and plating.
For harsh environments with moisture, chemicals, or extreme temperatures, robust insulation systems like epoxy powder coating or fluid bed epoxy impregnation offer excellent dielectric strength, mechanical protection, and resistance to environmental degradation. Heat shrink tubing is effective for localized insulation, while Mylar or Kapton films are suitable for compact laminated busbars. High voltage applications often demand multi-layer insulation or specific dielectric materials to prevent arcing and ensure compliance with creepage and clearance distance requirements.
Flexible busbars are ideal for applications requiring vibration dampening, accommodating thermal expansion, or where components need to be easily connected with complex alignments. They simplify assembly by allowing for greater tolerances and reducing stress on connections. Rigid busbars, conversely, are preferred for their higher current carrying capacity, lower impedance, and ability to serve as structural elements, making them common in switchgear, circuit breakers, and large power distribution units where a fixed, robust connection is needed.
Plating is crucial for optimizing busbar performance and extending its service life, especially at connection points. Silver plating provides the lowest electrical resistance, making it excellent for high-current connections where minimizing losses is critical. Tin plating offers superior corrosion resistance, particularly in humid or corrosive environments, and improves solderability. Unplated copper can oxidize over time, increasing contact resistance and potentially leading to hot spots, so proper plating ensures reliable, low-resistance connections throughout the busbar's lifespan.