S3 Cases are durable and customizable for use in the most extreme circumstances. When your equipment has to work when you need it, trust an S3 Case in the field.

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S3 Cases are made to be reliable and durable so that everyone relying on your equipment can rely on you. S3 Cases have many applications to protect your equipment when you need it most.

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S3 Cases are water-resistant, pressure-resistant and ready for any situation. When your expensive, delicate equipment needs protection, count on S3 Cases.

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About Us

The company sources all its components in the US and constructs all of its plastic cases in this country as well. The molding facility and machine shop are a full service, custom injection molder, which is ISO 9001:2000 certified. That’s not an easy certification to get. It bespeaks quality in process and production. Based in Denver, Colorado, our plastic case manufacturer is the leading injection molder in the Rocky Mountain Region.

S3 Cases is a devoted friend to the environment. All cases use up to 25-percent plastic regrind instead of producing that much plastic scrap. Less in the landfill, and that’s for starters. The fact that your possessions don’t need to be repurchased-since you will have saved them from destruction or persistent wear and tear-is another eco-bonus.

Customization and customer focus are the top two priorities of the company. Whether it’s a color mix made just for your brand – such as a Ferrari red or John Deere green – or it’s a one-of-a-kind see- through lid you need, S3 Cases will make you the perfect case that looks ideal and holds up great.

Consider this:

  • How many companies are quality-oriented with the proof being product manufacturing via ISO certification?
  • How many have a customer service mission that is evident in their total willingness to make customized products?
  • How many have ‘made in the USA’ criteria?

Now add to all that, the fact that S3 is cost-conscious… About your costs! The owners are committed to providing value for money for their customers. At S3 Cases, quality doesn’t have to cost more. The unique cases offer uncompromised quality at an affordable price.

Lifetime Guarantee: We will replace any case that fails over time – at any time! However we cannot provide a warranty to cover contents so we strongly urge customers to test the case prior to use.

Get a Free Quote!

Drop us a line via our contact form and we'll get right back to you with a custom OEM case to fit your needs.


  • All Road Communications
  • Audio Bauer Pro AG
  • Environmental Systems & Services Pty Ltd.
  • Heidenhain Corp. / Acu-Rite
  • KJB Security
  • LaMotte Company
  • MicroDAQ.com.Ltd.
  • OPKO Instrumentation
  • Optics Planet, Inc.
  • PharmaJet, Inc.
  • Phonetracker
  • SeaSucker
  • Secret Safes
  • Shure Inc.
  • Spatial Data / CartoPac
  • UST – Ultimate Survival Technologies


Are you interested in learning how our hard-sided custom cases can help your business? Contact us for a free sample. No matter how extreme your environment, S3 Cases has a protective case for your needs.