Establishments primarily engaged in providing professional engineering services. Establishments primarily providing and supervising their own engineering staff on temporary contract to other firms are included in this industry. Establishments providing engineering personnel, but not general supervision, are classified in Industry 7363. Establishments primarily engaged in providing architectural engineering services are classified in Industry 8712, and those providing photogrammetric engineering services are classified in Industry 8713.
- Designing ship, boat, and machine
- Engineering services: industrial, civil, electrical, mechanical,
- Machine tool designers
- Marine engineering services
- Petroleum engineering services