A MULTI-NATIONAL, AWARD-WINNING INTERIOR DESIGN FIRM BASED IN CHINA AND THE USA FOCUSING ON RESTAURANT, BAR, AND COFFEE DESIGN. Andrew Sigfrids, founder of ASIG Design, is a Shanghai-based American designer with an extensive background in design, including urban, architectural, interior, furniture and product. Understanding how everything in the built environment impacts people in a positive way is critical to providing a great product or service.