Redline Design Group PA and Phillips Architecture PA Join Forces Redline Design Group, one of the top-performing Architecture, Interior Design and Graphic Design firms in Charlotte, NC, has announced that it has merged with Phillips Architecture PA of Raleigh NC. The combined firms will operate under the Redline name and be headquartered in Charlotte, NC. Founded in 2002, Redline specializes in Corporate Interiors, Automotive, Motorsports, Adaptive Reuse, Breweries & Commercial Office Design. Founded in 1989, Phillips offers Architectural and Interior Design services to more than six private and public sector markets in the southeast and nationally, including Life Sciences, Healthcare, Mission-Critical, Corporate Interiors, Retail and GSA projects.