Otsuka Corporation is a leading Japanese IT solutions provider operating across two core segments: System Integration, which covers consulting, hardware and software sales, custom software development, and network installation; and Service & Support, which encompasses office supply procurement, maintenance services, and business support services. The company serves primarily small and medium-sized enterprises in Japan, offering end-to-end IT infrastructure solutions from system design and deployment through ongoing operational support. Key offerings include AI agent services ('Tayoreru Business AI Agent'), cloud IaaS solutions, cybersecurity products, and document management tools, with notable strength in long-term partner relationships, exemplified by 27 consecutive years of Microsoft partner awards.