(株)ＩＣＳパートナーズ is a leading provider of valuable accounting systems that cater to the needs of the modern era. With a wide range of products and services, they strive to improve productivity and efficiency for businesses. Their flagship product, OPEN21 SIAS, is a strategic information accounting system that automates and streamlines the accounting processes of large, medium, and group companies, ensuring timely compliance with regulatory