The Household Name in the Residential Industry

Nearly one in two new homes built in the United States contains Southwire wire. With our expansive line of innovative brands and products, Southwire is the one stop shop for residential jobsite needs. Whether it is our legendary Romex® Brand SIMpull® NM-B Cable, or one of our other innovative products, we help you get the job done.


15 Things You Don’t Know about Romex® Wire 

You’ve probably heard of Romex® cable. Since its creation in 1922, the name is used widely used by electricians and some consumers in a generic sense to refer to all NM-sheathed electrical wire. Within the world of building products, the word Romex is often used in the same way that Kleenex is used to refer to any tissue: generically.

Only Southwire makes the real Romex® Brand SIMpull® NM-B cable. 

In this webinar, Principal Engineer Dave Watson will discuss the history of Romex® Brand cable and provide several little known facts about the cable.

Access Southwire’s Free Calculating Tools


To help you work most efficiently, we've created a number of calculating tools to aid in your wire and cable installation.


Southwire Solutions University (SSU)

Based out of the Thorn Center, Southwire Solutions University (SSU) offers digital and hands-on product training for electrical contractors, distributors, and apprenticeships throughout North America. Students who attend classes hosted by SSU learn best practices for a safe and productive cable installation by using Southwire’s SIMpull Solutions® products and services. 

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Contractor Solutions Team

Southwire’s Contractor Solutions Team is not a sales team – with over 250 years of jobsite experience, we’re a customer service partner. Think of us as an extension of your team. We are with you from start to finish to customize our solutions to fit your needs and positively impact safety and productivity on your jobsite. 

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Southwire SPEED Services

 Southwire SPEED™ Services offers a variety of solutions based on your urgent needs. Whether it is a made-to-order product that requires a reduced lead time or minimum order quantity, or a made-to-stock product that requires shipment today or specific delivery expectations, our concierge customer specialists will provide options to meet your needs all from one manufacturing source. 
Southwire SPEED™ Services is here to turn “No quote” into “No problem”. 

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Southwire CableTechSupport

Southwire’s CableTechSupport™ Services team, comprised of engineers with expertise in power, electrical, mechanical, civil, chemical, polymer science, industrial, and nuclear engineering, has the depth of skill and the ability to respond with innovative solutions for your most complex and mission-critical wire and cable challenges. 

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