About Stroma Signs Stroma Signs in Kelowna has been providing the BC interior with custom sign services since 1993. With 50 years' combined industry experience and the newest technology, we lead the way in design, installation and production with clients all over North America. Contact us today to help you define your company's image! Our mission is to provide our clients with the best possible products and services working within a budget to achieve the overall image needed to succeed. We take great pride in designing and producing the right products to represent your business.