This industry comprises establishments primarily engaged in supplying workers to clients' businesses for limited periods of time to supplement the working force of the client. The individuals provided are employees of the temporary help services establishment. However, these establishments do not provide direct supervision of their employees at the clients' work sites. Illustrative Examples: Help supply services Model supply services Labor (except farm) contractors (i.e., personnel suppliers) Temporary employment or temporary staffing services Manpower pools Cross-References. Establishments primarily engaged in--