PROFILE Theiss Interior Design, Ltd. confidently pursues the challenge of taking interior design to a higher level. Our expertise and attention to detail are matched by our ability as a team to make project environments uniquely successful. We endeavor to build relationships with our clients that, like the quality of our work, stand the test of time. We are proud to have a business-based on 90% referral and repeat clients. We look forward to continuing that tradition by building new relationships with organizations that believe in the power and impact of good design.