About Us
About KOEISHA INC.
KOEISHA INC. is an IT solutions provider headquartered in Yokohama, Japan. We help organisations plan, build and operate secure, reliable technology — from day-to-day managed support to complex, business-critical transformation projects.
Our History
Founded in 1964, KOEISHA has grown alongside Japan’s remarkable technological transformation. What began as a small, service-minded company during the era of rapid post-war economic growth has, over six decades, evolved into a trusted technology partner for businesses across Japan and beyond.
Through each new wave of technology — the spread of business computing, the arrival of the internet, the shift to the cloud, and today’s focus on cybersecurity and digital transformation — our commitment has stayed the same: dependable service, long-term relationships, and technology that genuinely moves our clients’ businesses forward.
Milestones
- 1964 — KOEISHA INC. is established.
- 1980s–1990s — Expands into business systems and IT support as computing becomes central to Japanese enterprise.
- 2000s — Broadens services to networking, infrastructure and internet-era solutions.
- 2010s — Adds cloud migration, managed services and security as core offerings.
- Today — A full-service IT partner delivering consulting, managed support, cloud and cybersecurity from our base in Yokohama.
Our Values
- Reliability — always-on support our clients can count on.
- Partnership — long-term relationships built on trust.
- Security first — protecting our clients’ data and operations.