Reliable IT operations in Japan, delivered by Microsoft Certified engineers — for multinational offices.
Since 2006, eCorpOne has supported the Japan offices of multinational corporations across networking, Windows Server, Active Directory, and end-user IT. As a registered Type-II Telecommunications Carrier, we deliver design, build, and 24/7 on-site maintenance from a single accountable vendor.
What we deliver
Engineered for global IT managers who need predictable operations, English communication, and clear SLAs in Japan.
Windows Server & Active Directory
- AD / Entra ID hybrid identity
- File servers, shares, GPOs
- Virtualization (Hyper-V, KVM, VMware)
- Backup design & restore validation
Network, VPN & Security
- Rational VPN design (site-to-site & remote access); zero-trust architecture available
- Authenticated wireless, redundant LAN
- Application-layer firewalls
- Arista Networks, Untangle, Trellix
Managed Services with SLA
- SLA-backed business Internet
- Managed Windows Server hosting
- On-site response Kanto/Kansai
- English-first ticketing
Collaboration platforms
- Microsoft 365 / Exchange / Teams
- Managed AD & file servers
- VoIP, IP phones, international voice
- IP security camera systems
Systems & hardware integration
- Credit card (VISA/MC/AMEX/JCB) payment control
- Cash, magnetic-card, kiosk software
- LAN-connected barcode hardware
- QR code and access-control systems
Urgent on-site replacement
- Cold-spare hardware stored in Tokyo
- 4-hour SLA in Kanto, named SLA in Kansai
- Remote & on-site combined recovery
- 1-year contract, auto renewal
Hyper-V / KVMVMwareLinux
Arista NetworksUntangleTrellix
VPN / SSLVoIP / SIPMicrosoft Entra ID
Why multinationals choose eCorpOne
A vendor your engineers can validate technically — and recommend upward to global IT leadership.
1. Full-stack accountability
Design, procurement, deployment, run, and on-site break-fix from one accountable vendor. Communication with your global HQ runs in English by default.
2. Registered & auditable
Type-II Telecom Carrier (A-23-12326), qualified invoice issuer registered. Vendor due-diligence documents are available on request for your procurement team.
3. 20 years of continuity
Founded in 2006, focused on multinational IT support. Long-term SLA-based engagements with 1-year auto-renewal keep service quality consistent across staff rotations.
Company information
Key facts for procurement, vendor onboarding and compliance reviews.
Planning an office relocation, takeover from another MSP, or a Japan-entry IT setup?
Send us your current diagram and pain points — we will return a gap assessment and rough estimate, usually the same day.
