An executive search firm is a type of professional service firm that specializes in recruiting executives and other senior personnel for their client companies in various industries. Executive search agents/professionals typically have a wide range of personal contacts in their industry or field of specialty; detailed, specific knowledge of the area; and typically operate at the most senior level of executive positions. Executive search professionals are also involved throughout the hiring process, conducting detailed interviews and presenting candidates to clients selectively, when they feel the candidate meets all stated requirements and would fit into the culture of the hiring firm. Executive search firms typically have long-lasting relationships with clients spanning many years, and in such cases the suitability of candidates is paramount. It is also important that such firms operate with a high level of professionalism and confidentiality.