Wire and cable companies play a vital role in powering industrial, commercial, and residential infrastructure across the U.S. From traditional power distribution to renewable energy, these suppliers provide the backbone of modern electrical systems. This list highlights ten leading wire and cable manufacturers and suppliers. It is focused on companies with long-term performance, deep technical expertise, and specialized capabilities.

Here are the criteria the list is based on:

• Established presence in the U.S. Market

• Distribution network and fulfillment capability

• Product diversity (power, control, telecom, fiber, specialty)

• Long-term reliability and project support

• Global reach paired with U.S.-based service and stock

Understanding the U.S. Wire & Cable Market

The U.S. wire and cable industry is shaped by rising demand for data infrastructure, grid modernisation, and renewable energy.

• The market was valued at over USD 31.8 billion in 2024, with projections surpassing USD 42.74 billion by 2031.

• Renewables, EV infrastructure, and data center growth are key drivers of specialty cable demand.

• The U.S. market favours suppliers with strong compliance capabilities (UL, NEC, IEEE) and fast distribution across state lines.

• Aluminum conductors are growing due to cost-efficiency, while copper remains the standard for performance-intensive applications.

• Low-voltage cables make up the largest revenue share, driven by building wiring and commercial infrastructure.
  
  

• Underground installation is expanding rapidly due to urban development and storm-resilient grid planning.
  
  

• Overhead cables remain dominant in rural and utility-scale transmission.
  
  

• Top end-use sectors include:

• • Building & Construction (residential, commercial wiring)
    
    

  • Energy & Power (utilities, renewables)
    
    

  • IT & Telecommunications (fiber + data center cabling)
    
    

  • Automotive & EV Infrastructure
    
    

  • Oil & Gas, Aerospace & Defense

Top 10 Wire & Cable Manufacturers and Suppliers

1. Nassau National Cable

Founded: 2009

HQ: New York, NY

Website: nassaunationalcable.com

Nassau National Cable is a leading U.S. wire and cable distributor with one of the most extensive online catalogues for aluminium and copper building wire. The company maintains stable relationships with trusted U.S.-based manufacturers. This allows for reliable stock levels and competitive pricing across a wide range of products, including THHN, XHHW-2, SER, tray cable, DLO, and MC. Nassau specialises in bulk orders, project quotes, and custom-cut lengths.

It serves contractors, utilities, large-scale commercial buyers, and individual customers nationwide. The company also maintains a growing international presence, supporting projects in Latin America, Asia, and Europe.

Why it stands out:

• Large, in-stock catalogue of UL-listed copper and aluminium wire with real-time availability and detailed product data.

• Emphasis on bulk supply and flexible fulfilment to support industrial, residential, and infrastructure-scale projects. This includes renewables and data center projects.

• Stable supplier relationships in the U.S. ensure continuity of stock and long-term pricing consistency

• A strong digital presence, including a modern, user-friendly website and fast checkout

• Educational content and wiring guides that support informed buying decisions

• Active social media channels and customer support that reinforce brand trust and accessibility

Nassau National Cable stands out for combining technical expertise with a high-quality digital experience, making it a go-to partner for contractors and buyers who value both convenience and professional support.

2. Prysmian Group / General Cable

Founded: 1879 (General Cable); 2005 (Prysmian)

HQ: Highland Heights, KY (U.S. operations)

Prysmian Group operates multiple manufacturing facilities across the U.S. through its acquisition of General Cable. The company produces medium- and high-voltage cables, subsea systems, and telecom infrastructure, with a strong focus on utility-scale energy and infrastructure projects. Prymian Group is the largest wire and cable manufacturer in the world. Prysmian Group maintains 28 manufacturing facilities in its North American operations, 8 distribution centres, and 6 R&D centres.

3. Southwire

Founded: 1950

HQ: Carrollton, GA

Southwire is a vertically integrated manufacturer and one of the largest producers of building wire in North America. Their product portfolio includes residential, commercial, and industrial wiring, copper rod production, and installation tools. The company is also a leader in sustainability and domestic manufacturing. It operates over 30 manufacturing plants across the U.S., Mexico, Honduras, and China.

4. Belden

Founded: 1902

HQ: St. Louis, MO

Belden specializes in signal transmission, industrial Ethernet, and control cables. Their solutions power mission-critical environments across telecommunications, automation, and broadcasting. The cables are known for high-performance shielding.

5. LS Cable & System USA

Founded: 2006 (U.S. operations)

HQ: Tarboro, NC

A U.S. division of the global LS Group, LS Cable & System manufactures low- and medium-voltage power cables domestically. The company supports utility, renewable, and commercial infrastructure needs with NEC-compliant products and fast U.S. delivery.

6. Encore Wire Corporation

Founded: 1989

HQ: McKinney, TX

Encore Wire is a full-line manufacturer of copper and aluminum building wire, offering fast production cycles and consistent quality. Their vertically integrated campus enables responsive manufacturing for residential and commercial construction projects across the U.S. Encore is not well-known as a direct supplier.

7. Cable Master

Founded: 1981

HQ: Miami, FL

Cable Master focuses on low-voltage, alarm, control, and data cabling, offering bundling, custom colors, and contractor-ready packaging. The company is known for flexible order volumes and fast delivery for integrators and installers.

8. Amphenol Corporation

Founded: 1932

HQ: Wallingford, CT

Amphenol is a global leader in interconnect systems, offering coaxial, fiber-optic, and RF cables. Though best known in aerospace and automotive, Amphenol also serves high-frequency telecom, defense, and data center markets in the U.S.

9. Dacon Systems, Inc.

Founded: 1973

HQ: Santa Rosa, CA

Dacon Systems engineers custom cables for high-precision sectors such as medical, aerospace, robotics, and test equipment. Their strength lies in low-volume, high-spec manufacturing and compliance with stringent industry standards like MIL, and FDA.

10. EIS Wire & Cable

Founded: 1910

HQ: Western Massachusetts, USA

EIS Wire & Cable manufactures control, instrumentation, and industrial wire for oil & gas, marine, solar, and manufacturing sectors. They specialise in shielded, flexible constructions designed for harsh and variable environments.

Criteria for Choosing a Wire & Cable Supplier

• Product availability

• Competitive pricing

• Compliance with UL, NEC, and IEEE standards

• Flexibility in cut-to-length or bulk orders

• Domestic stock and shipping speed

• Technical support and documentation

• E-commerce platform quality

• Reputation and reviews

• Customization and special constructions

• Clear product specs and certifications, including the ones relevant to specific industries.

• Support for project-based quotes

• Educational resources or buying guides

• Responsiveness of customer service