Radar · Telecom Infrastructure in Japan
Best Telecom Infrastructure Companies in Japan
The 34 best Telecom Infrastructure companies in Japan in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: JTOWER.
By Rohit KhannaTrends & Stories
34companies tracked
$8.5Mdisclosed funding
0unicorns
1have raised
Sources & further reading
- Huawei shines in storage business vs Dell, NetApp, HPE
Ranked: Best Telecom Infrastructure companies in Japan
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | JTOWER Provider of shared infrastructure solutions for telecommunications | $8M | 158 mo ago | Public | — | 2012 | WordPressMySQLPHP+19 | — | — |
| 2 | c-cube C-CUBE specializes in the design, construction and maintenance of mobile communication equipment. | — | — | Private | — | 1954 | Apple iCloud MailPHPApache HTTP Server+3 | 35 patents Patents concentrated in computing, sensing & instrumentation | — |
| 3 | Canare Electric Provider of fiber optic systems installation services | — | — | Public | Masataka Nakajima President & CEO | 1974 | Apache HTTP ServerSlickjQuery+3 | — | — |
| 4 | Cosmo Systems Provider of construction and engineering services catering to the telecommunication sector. | — | — | Acquired | — | 1990 | WordPressMySQLPHP+15 | — | — |
| 5 | denki kogyo Denki Kogyo supplies a variety of products in the telecommunications and radio frequency areas. | — | — | Public | — | 1950 | WordPressMySQLPHP+13 | 3,237 patents Polymer resin formulations, molded optical connector housings, and diaphragm flow‑control valve technologies. | — |
| 6 | Fujitsu Toho Network Technology Provider of telecommunication-related services. The company is engaged in the design, construction and… | — | — | Acquired | — | 2010 | — | — | — |
| 7 | GMO Internet Provides internet infrastructure & financial services | — | — | Public | Masatoshi Kumagai Founder | 1995 | WordPressMySQLPHP+15 | — | — |
| 8 | hirakawa hewtech Hirakawa Hewtech is a manufacturer and seller of electronic wires and equipment. | — | — | Public | — | 1948 | JimdoMustacheModernizr+7 | 60 patents Patents concentrated in electrical & electronics | — |
Top 1 Telecom Infrastructure companies in Japan
#1
Public · Shibuya, Tokyo · founded 2012 · 201 employees$8.5Mraised▾
Public · Shibuya, Tokyo · founded 2012 · 201 employees
Provider of shared infrastructure solutions for telecommunications. This company offers services encompassing indoor and outdoor infrastructure sharing, enabling efficient network development. Their solutions include tower sharing, local 5G network construction, and managed Wi-Fi. They also provide a system to facilitate rooftop space utilization for telecommunications infrastructure. The company supports both real estate and telecommunications businesses.
Funding rounds
- Aug 2013PE$8.5M
Investors
INCJ, IT-Farm Corporation, Mitsubishi UFJ Capital, DBJ Capital, Japan Post Capital, SMBC Venture Capital
Tech stack
CdnjsCloudflareContact Form 7Google AnalyticsGoogle Hosted LibrariesGoogle Tag Manager
Funding & investor landscape
$8.5Mtotal disclosed funding
1companies funded
1disclosed rounds
0rounds last 90 days
Most active investors
Common questions
How many Telecom Infrastructure companies are there in Japan?
Radar tracks 34 indexable Telecom Infrastructure companies headquartered in Japan that meet our profile-completeness bar.
What is the total funding raised by Telecom Infrastructure companies in Japan?
The Telecom Infrastructure companies in Japan on this list have raised a combined $8.5M in disclosed equity funding across 1 funded companies.
Which is the highest-funded Telecom Infrastructure company in Japan?
JTOWER is the highest-funded Telecom Infrastructure company in Japan, with $8.5M in disclosed equity funding.
How many Telecom Infrastructure companies in Japan are funded?
1 of the 34 Telecom Infrastructure companies in Japan on this list have disclosed at least one equity funding round.
How many Telecom Infrastructure unicorns are there in Japan?
None of the Telecom Infrastructure companies in Japan on this list currently has a disclosed valuation of $1B or more.
Who are the top investors in Japan Telecom Infrastructure companies?
The most active investors in Japan Telecom Infrastructure companies on this list include NTT Finance, DBJ Capital, Drone Fund, INCJ, IT-Farm Corporation.
Rohit KhannaTrends & Stories
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.