Call us Now:   1-800-955-1996   |   Customer service hours:   Monday - Friday 8am to 4:30pm (Mountain)

About Us

Founded in 1977, Interwest manufactures highway construction and roadway signs and distributes a wide variety of traffic safety supplies and equipment used to signal, protect, delineate, notify, and guide pedestrians and vehicles safely through work zones.  

Headquartered in Provo, Utah, Interwest Safety Supply is the largest distributor of traffic safety supplies, as well as the largest manufacturer of roadway signage in the Rocky Mountain region.  The company operates from five distribution facilities and two manufacturing facilities located in Utah, Colorado, New Mexico, Arizona, and Nevada.  

Customers include the Department of Transportation (state and federal), road contractors, general contractors, small sign manufacturers, municipalities, airports, schools, universities, law enforcement, rental companies, and private industry. 

These safety products are used in a multitude of construction and maintenance projects involving highways and streets, infrastructure, utilities, landscaping, development, general construction, events, crowd control, accidents, natural disasters, law enforcement, and land development, to name a few.

Here's a list of the industries we serve.


Interwest Logo


Regional Warehouse

We operate in 5 regional warehouses to provide you a fast and reliable delivery service

Delivery Truck

Fast Shipping

From highway signing and safety products to crash cushions and traffic monitoring equipment.

Experienced Staff

Experienced Staff

If you need assistance, a member of our friendly staff will be always happy to help you.