About Us

Rainbow Signs is a Sioux Falls, South Dakota-based sign company that opened on April 1, 1980. We began as a banner-only sign company in a time when most signs were still hand-painted. Over the last 40 plus years, we have expanded our product lines to thousands of products and customers.

We specialize in two things: custom signs and customer service. All of our sign products are produced as custom products. We are the perfect solution to fulfill your business sign needs, uniquely qualified to specialize in the things the neon and billboard sign companies and the franchise sign companies do as their sidelines. And we do it on time.

The usual process begins with a phone call or an email. We listen to what you need and advise you on how to proceed. We talk about if you have artwork provided by your company or if you need help with your artwork. We discuss your goals and timeline. We talk about material choices. We figure out what you’re trying to accomplish and the content of the sign.

During the next few days, we do a proof for you. Sometimes we need to come to see the space your talking about or have you drive your vehicle over so we can measure it. We’ll probably take pictures then we figure the cost. If you approve of the cost and the proofs, we start the fabrication.

We have an unmatched level of customer satisfaction. We only use the best materials and are perfectionists at getting your sign just right. We have the right balance of artistry with expert installers and fabricators. We consider ourselves craftsmen. A lot of our clients have been coming to Rainbow Signs for decades.

Even with all this experience and stability, we have never experienced anything like the current pandemic. We haven’t missed a day of work. We have adjusted some practices. We almost always start an order with an email or phone call, so that is easy to continue. We send proofs by email. We will meet with you if it’s needed but would wear a mask and social distance.

We’re still installing vehicle graphics and wraps every day by having people leave their vehicles in the parking lot with no sign on it and picking it up all done and looking good. We are ready to assist you with the COVID Information Signs that you need to get your business or practice up and running again.

We’ll work it out. We’ll get it done on time. That’s what we do.

We make the signs that make your business. Let’s get started on yours!

Maps & Hours

Due to the custom nature of our work, we may be out during regular business hours. Please always call ahead to make sure we are in the shop.
(605) 338-8699

Monday - Friday
8:30 am to 5:00 pm

Closed Weekends and Holidays


  • Custom sign fabrication
  • Free consultation
  • Design services
  • Installation of signs
  • Installation of company-provided graphics
  • Out of state installation
  • Out of state shipping
  • COVID 19 sign products