Dietswell is engaged in the provision of engineering and drilling services to oil and gas industries. Its activities include drilling project management such as design, construction, jobsite management, and oil well maintenance services. The company specializes in rig design and engineering that covers both onshore and offshore disciplines and ranges from design to procurement and construction supervision. It offers rig inspection and auditing services for oil companies. The company also offers technical assistance to the energy industry. Dietswel was founded on January 1, 2000 by Jean-Claude Bourdon and is headquartered in Guyancourt, France.