Since the economic of Thailand growing so P.S. account company and Sangthammarat account company have a lot of new customer with various types business. Nowadays the company have many professional staff and offer service for all type of business from small business until big business. Furthermore, the company is also set up training for our staff for developing their performance to satisfy customers. From our experience of more than 30 years in accounting. P.S. account company has design and develop STRAccount program for assisting correction in accounting according to accounting standard and convenience in working. In 2002 P.S. account company had building STR Software company for develop STRAccount program.