COMPANY PROFILE
2026.08.22
Company Profile: Basic Corporate Information & Licenses of C.T.S Co., Ltd.
This is the company profile page for C.T.S Co., Ltd. We are a telecommunications provider that has filed the required notification under Japan's Telecommunications Business Act, and we are committed to transparent corporate operations.
Basic Company Information
| Company Name | C.T.S Co., Ltd. (English name: C.T.S Co., Ltd.) |
|---|---|
| Date Established | August 5, 2019 |
| Head Office Address | 401 Kowloon Building, 2-41-9 Namiki, Kawaguchi-shi, Saitama 332-0034, Japan |
| Phone / Fax | TEL: 048-278-4612 |
| Email Address | support@cts-world.jp |
| Official Website | https://ct-s.jp |
Business Activities
- Telecommunications services for foreign residents in Japan (SIM, eSIM, and Pocket WiFi)
- Communication infrastructure and centralized management solutions for corporate clients
- Sales and rental of mobile communication devices and reused devices
Telecommunications Business Notification Number
A-01-17459 (notified to the Ministry of Internal Affairs and Communications)
Secondhand Dealer License
Saitama Prefectural Public Safety Commission License No. 431030070084
Access to Head Office
About a 6-minute walk from the East Exit of Nishi-Kawaguchi Station on the JR Keihin-Tohoku Line.
401 Kowloon Building, 2-41-9 Namiki, Kawaguchi-shi, Saitama 332-0034, Japan
Please contact us in advance by phone or email for office visit reservations and inquiries.