TAC Co., Ltd. engages in the provision of individual education and corporate training to university students and corporate employees. It operates through the following segments: Personal Education, Corporate Training, Publishing, and Manpower Business. The Personal Education segment deals with operating preparatory courses for individuals challenging various license exams. The Corporate Training segment provides training programs for acquisition of qualifications, work training for acquisition of specialized knowledge and skills, as well as, various educational materials to corporations, universities, colleges, accountancy firms and other organizations. The Publishing segment segment promotes publishing of textbooks for license qualifications under a dual framework of 'TAC Publishing' and Waseda Keiei Publishing's 'W Seminar'. The Manpower Business segment which covers manpower dispatching, manpower placement and job advertisement is assumed by TAC Profession Bank, TAC Medical Office Staffing Co., Ltd., Medical Office Staffing Kansai Co., Ltd. and Kubo Medical Office Support Co., Ltd. The company was founded by Hiroaki Saito on December 10, 1980 and is headquartered in Tokyo, Japan.