APSCo | 13,888 followers on LinkedIn. The Association of Professional Staffing Companies (APSCo). | The Association of Professional Staffing Companies (APSCo) is the professional body representing the interests of recruitment organisations engaged in the acquisition of professionals, on behalf of their clients, either on a permanent or flexible basis. To its members it delivers valuable commercial opportunities, business information, research, an influential lobbying function, networking, social and charity events, specialist forums and thought-leading public relations. To candidates and employers it provides a guarantee of excellence, best practice, quality, integrity and expertise.