r.o.i. Design is a commercial interior design firm that collaborates with clients to provide a return on investment through their design work. They serve clients in the hospitality, residential, workplace, retail, food service, and religious sectors. Their services include planning and research, space programming, conceptual design, budgets, illustrations, and more. r.o.i. Design operates as a fee-based company, providing design services and reselling some products to assist clients, and sends itemized invoices every two weeks for their work.