Temporary Staffing for Today's Office. As an independent staffing firm, Integrity is an innovator in workforce management, providing companies with high-skill business specialists across the spectrum of back-office functions. With 30 years of experience in our industry, we've launched new technology platforms and built a custom-designed facility so that we can deliver our services even faster and at lower cost to our customers. Delivering best-in-class staffing, recruitment, and workforce consulting services to companies throughout the Greater Lehigh Valley of Pennsylvania, Integrity hires specialists in accounting, administrative support, HR, and marketing communications.