The tools of our trade are the services we provide. MATRIX is more than just an architecture or engineering firm. We are a full-service design firm that can offer all of our services working together, or we can provide the services of a single discipline. Interior design at MATRIX starts at the programming phase and continues through construction. Interior designers collaborate with architects, engineers, planners, and construction administrators during all phases of a project. At MATRIX, structural engineering is more than the design of load-bearing structures.