A4 House Co., Ltd., established in October 2020, is a manufacturer of office machinery and equipment dedicated to enhancing workplace efficiency and ensuring the secure handling of printed documents.
Guided by the philosophy that “the completion of a perfect smart office begins with A4 House,” the company strives to build efficient and eco-friendly office systems in today’s rapidly changing business environment.
Through IoT-based office automation solutions, A4 House is leading smart office innovation and creating a sustainable workplace.

World’s First Automated Paper-Management System
The company’s A4 House is the world’s first automated paper-management system, patented and trademark-registered. With this real-time monitoring system, customers can ensure a stable paper supply without concern for shortages. Its compact design, capable of holding approximately 8,500 sheets within the footprint of a single sheet of A4 paper, maximizes office space efficiency.

Through IoT-based monitoring, users can easily track paper consumption by department and period. When the remaining supply falls below a certain threshold, the system automatically triggers an end-to-end service—from order placement and delivery by the company’s specialists to replenishment and payment. All by-products generated during the process are also collected and properly handled.
This enables customers to eliminate the burden of inventory management and waste disposal, allowing them to focus on productivity and mission-critical tasks. Certified by domestic institutions for innovation and quality, A4 House has strengthened its global competitiveness by completing trademark registrations in the United States, China, Vietnam, and Europe; with utility model registrations in China and Japan, and patent registrations in the United States and Vietnam, while patents in China, Japan, and India are currently being filed.
A4 House is redefining the paper-usage culture and leading innovation in smart office solutions.

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