About Us

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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.

After more than 40 years of being in the sign industry, we pretty much have done it all.
If you are working in a marketing department and are looking for a specific product, or a contractor needing his vehicles lettered or wrapped, or an architect interested in the huge variety of window films we offer, or someone who has never ordered a sign before but needs a sign for their family business or farm, we will get you the professional sign you’re looking for.

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
[email protected]

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