Atsystem is a Japanese company that specializes in providing systems and solutions to help individuals and organizations manage their time effectively while being friendly to people. With a focus on convenience and efficiency, Atsystem offers a range of products and services designed to meet various needs. One of their flagship products is the eメッセージ (e-Message) system, which is an all-in-one communication platform that enables simultaneous messaging to a large number of users.

This system is widely used in schools and by parents for digital communication, easing the burden of communication between them. Another notable offering from Atsystem is Ckip, an internet application system specifically developed for high school admissions. This system aims to reduce the workload and streamline the admission process for both schools and students.

Additionally, Atsystem provides 勤怠先生 (Attendance Teacher), a time attendance management system designed to accommodate flexible working hours and simplify overtime calculation for companies. With a commitment to privacy and information security, Atsystem strives to offer reliable and user-friendly solutions to enhance productivity and communication