Established in 1993, Training & Development Systems, also known as TDS, is a workforce performance consulting and staffing firm. The company has staff of trained and certified professionals who provide strategic and tactical workforce assessment, material development, program implementation, outcome evaluation and project management services. Its client list includes Advanced Aromatics, Air Liquide America, Merck, Nalco, Merichem, Sterling Chemicals, Sunoco and Shell. TDS specializes in strategic learning, project management, strategic learning and job task analysis services. The company has developed operating procedures, training manuals and technician qualification tools for more than 60 different refining and petrochemicals processes. It is located in Houston.