Vendors and Suppliers Individuals who provide goods or services to the company areoften aware of potential candidates for openings. Particularly when there has been a long term relationship, the vendor is aware of the organization’s culture and needs and may prove to be a good source for applicants.Labor Unions In union environments, the union hiring hall can be a good source forqualified employees.Professional Associations Relationships developed in connection with attendance at professional association functions or conferences often provide leads for qualified applicants. In addition, many associations provide job-posting opportunities on websites or sell job advertisements in their publications.