eCorpOne's global IT services 

eCorpOne Co., Ltd. is located in Chiyoda, Tokyo, Japan, and providing IT support and IT solutions that are required by companies located globally. Our bilingual professionals can help you realize your IT needs smoothly. 

Our Phone number:

(Our phone system requires at least 10 seconds to start ringing. Please do not hang up quickly)

Normal business hours:

9:30am to 7:00pm (Japan Standard Time)
* 24/365 service available.

IT maintenance service with SLA 

eCorpOne provides IT maintenance service for Windows and Linux based servers, networking systems, and telephone systems. The goal with this service is to make existing systems run and usable in healthy situation.

Hardware storage and urgent on site service

To request us urgent on site IT support service, please visit this URL for more details.

Full managed active directory and file server cloud service

Corporate level SLA managed Internet service

400Mbps dedicated fiber Internet with 24/365 days support for sale at 299,999 JPY/months now. Please contact us,

Corporate IT infrastructure design and management service 

Majority of networking and server hardware supported.


Delivery time

Supporint various virtual systems

Creating and managing solar energy plants

We do EPC projects of solar energy plants for our own. We design, develop, and manage solar power plants.  As of 2021, we are managing 8 solar energy plants.

Youtube video (in Japanese language only) as the link at the right side available.

For more details, please visit here.

Software development service 

IP Security camera solutions

Installing and managing IP cameras in various environment

Cisco VoIP system consulting