In data centers, cabling is what keeps everything running. Finding high-quality cables and determining which supplier suits your needs can be a tough challenge.

This guide breaks down some top data center cabling suppliers, how they compare in terms of data center cabling solutions (power and data cables), and what to consider when choosing the right one.

Overview of data center cabling companies

Panduit

Founded in 1955, Panduit began as an electrical tape manufacturer before expanding into structured cabling and intelligent infrastructure solutions. Today, it offers solutions that integrate network management and power distribution for data centers.

Key Offerings:

• Fiber Optic Cabling: High-density pre-terminated fiber

• Copper Cabling: Shielded and unshielded networking cables

• Power Cabling: Smart power distribution, grounding, and bonding solutions

• Infrastructure Management: Data center infrastructure management (DCIM) tools

Best For: Integrated structured cabling and power distribution with intelligent management.

Corning

Founded in 1851, Corning revolutionized fiber optic technology. In particular, the company was the first one to develop low-loss optical fiber in 1970. It remains the gold standard for high-speed fiber in data centers, particularly with its ClearCurve® bend-resistant fiber. This innovative fiber is the most well-suited for hyperscale and enterprise data centers because of its high density and high-speed.

Key Offerings:

• Fiber Optic Cabling: Industry-leading optical fiber

• Infrastructure Solutions: Edge data center solutions for high-density applications

Best For: Data centers that need cutting-edge fiber optics with long-term scalability and are willing to pay a premium for it.

CommScope

Founded in 1976, CommScope started as a coaxial cable manufacturer and evolved into a networking infrastructure leader. It is known for high-speed MPO/MTP fiber solutions and intelligent network management. The company's clients are large-scale, high-speed data hubs.

Key Offerings:

• Fiber Optic Cabling: High-performance MPO/MTP fiber

• Copper Cabling: Shielded and unshielded structured cabling

• Power Cabling: Power over Ethernet (PoE) and energy-efficient power solutions

• Infrastructure Management: Automated connectivity monitoring

Best For: Hyperscale data centers integrating high-speed networking with PoE solutions.

Belden

Founded in 1902, Belden began as an electrical wire and cable manufacturer before expanding into industrial-strength connectivity solutions. Unlike most competitors, Belden’s focus extends beyond data centers to mission-critical applications like oil & gas, automation, and security systems.

Key Offerings:

• Fiber Optic Cabling: High-density, secure fiber solutions

• Copper Cabling: Shielded and unshielded Ethernet cables

• Power Cabling: Industrial power cables and flexible distribution systems

• Infrastructure Solutions: Power and signal transmission

Best For: Data centers requiring durable, industrial-strength fiber and power cabling.

Leviton

Founded in 1906, Leviton originally specialized in electrical products before expanding into structured cabling. It offers pre-terminated fiber and copper solutions alongside power management, and its range exceeds data center cabling.

Key Offerings:

• Fiber Optic Cabling: Plug-and-play pre-terminated fiber

• Copper Cabling: Category-rated networking cables

• Power Cabling: PDUs and grounding solutions

• Infrastructure Solutions: Scalable fiber management systems

Best For: Pre-terminated fiber solutions with seamless power integration.

Siemon

Founded in 1903, Siemon is a privately owned company specializing in structured cabling for data centers, healthcare, and finance sectors. It is particularly known for low-loss fiber optic solutions for high-speed data transmission.

Key Offerings:

• Fiber Optic Cabling: Ultra-low-loss single-mode and multimode fiber

• Copper Cabling: High-performance networking cables

• Infrastructure Solutions: High-density patching and intelligent network management

Best For: Data centers needing low-loss, high-speed fiber connectivity.

AFL

Founded in 1984, AFL is a fiber optic specialist serving telecom, enterprise, and hyperscale data centers. Its carrier-grade fiber solutions are the top choice for long-distance, high-capacity networks.

Key Offerings:

• Fiber Optic Cabling: Carrier-grade fiber, including OSP (Outside Plant) fiber

• Infrastructure Solutions: Network monitoring and performance optimization

Best For: Data centers requiring carrier-grade fiber for long-haul connectivity.

Nassau National Cable

With decades of experience as a leading wire and cable distributor, Nassau National Cable focuses primarily on power distribution and offers networking cables as a secondary product line. Unlike most competitors specializing in structured cabling, Nassau National Cable provides a broad range of power cables, making it the best choice for data centers prioritizing power infrastructure.

Key Offerings:

• Fiber Optic Cabling: Cost-effective fiber optic solutions (single-mode & multimode)

• Copper Cabling: Ethernet cables for data transmission

• Power Cabling:

• THHN/THWN Building Wire for power distribution

• MC Metal-Clad Cables for secure, armored installations

• Tray Cables for industrial and commercial applications

• Flexible Cord & Portable Power Cables for dynamic power needs

• High-voltage MV105 power cables for critical infrastructure

• Custom Solutions: Tailored configurations for specific data center needs

Best For: Data centers prioritizing power distribution alongside networking cables, with a strong focus on cost-effective bulk ordering and fast shipping.

Wrapping Up

Your choice of data center cabling supplier depends on your priorities:

• If you only need fiber optics, Corning, AFL, or Siemon are top choices.

• If you need structured cabling with power integration, Panduit, CommScope, or Leviton provide strong solutions.

• If you need rugged industrial-grade solutions, Belden is a standout.

• If you need both power and networking cables, Nassau National Cable is one of the few companies offering a complete power distribution and data cabling solution.

For data centers that require a mix of power and networking cables with flexible ordering, Nassau National Cable is a top option for cost-effective, high-quality solutions. Here is our offer for data center cabling.