Staffing services connect businesses with qualified workers to fill temporary, contract, or permanent positions. They essentially act as middlemen between employers and potential employees. Staffing agencies handle the sourcing, screening, and interviewing of candidates. They have a pool of pre-vetted candidates, which can speed up filling open positions. Businesses can staff up or down as needed with temporary or contract workers. Staffing agencies can help find workers with specific skills that may be difficult to find on their own.