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JTOWER's Growth in Indoor Infrastructure Sharing Solutions

As of September 2025, JTOWER Inc., led by CEO Atsushi Tanaka, has successfully implemented its indoor infrastructure sharing solutions in a total of 739 locations across Japan. This achievement represents a significant growth of 123% compared to the same period last year, reflecting the increasing adoption of shared telecommunications infrastructure in various facilities including commercial complexes and office buildings.

From July to September 2025, projects were initiated not only in shopping malls and office towers but also in large venues such as arenas, capable of accommodating over 10,000 spectators. This expansion aligns with the upcoming launch of the new B.League Premier league in 2026, which emphasizes improved arena facilities as a key criterion for team entry. Consequently, there is a nationwide surge in arena construction, to which JTOWER is contributing by enhancing the signal environments at prominent locations like LaLa arena TOKYO-BAY in Funabashi City and GLION ARENA KOBE in Kobe City.

The rise of cashless payment systems and electronic tickets due to smartphones has increased the necessity for robust connectivity in places that host large crowds, like arenas and stadiums. As such, establishing effective communication environments is crucial for ensuring smooth transactions and entry processes during events.

Indoor Infrastructure Sharing Solutions

JTOWER first launched its commercial indoor infrastructure sharing services in 2014. Since then, the company has expanded its footprint across a diverse range of facilities, including hospitals and administrative buildings, as well as logistics centers and sports arenas. In 2020, JTOWER completed the development of shared equipment to support 5G, further enhancing its operational capacity in line with market demands.

The core concept of infrastructure sharing involves utilizing shared telecommunications equipment rather than having each mobile carrier independently develop their network infrastructure. This model reduces costs associated with equipment and their operation and maintenance while also minimizing environmental impacts due to lower energy consumption and reduced construction activity.

Benefits of Indoor Infrastructure Sharing

In large buildings exceeding 10,000 square meters, there is a significant need to improve indoor mobile signal quality. By applying infrastructure sharing, real estate developers can benefit from reduced space requirements and electricity costs, while mobile carriers can decrease their investment and operational expenses. Ultimately, this results in a better communication environment and increased satisfaction for mobile users.

Examples of Implementation

Notable sites that have adopted JTOWER's solutions include:

• - Office Buildings: Otemachi One, Shibuya Sakura Stage, Azabudai Hills Mori JP Tower
• - Commercial Facilities: Aeon Group stores, MIYASHITA PARK, Mitsui Shopping Park LaLaport Anjo
• - Healthcare Institutions: Ehime Prefectural Niihama Hospital, Toranomon Hospital, Maebashi Red Cross Hospital
• - Logistics Facilities: X Frontier, Prologis Park Inagawa
• - Arenas & Stadiums: Edion Peace Wing Hiroshima, LaLa arena TOKYO-BAY, GLION ARENA KOBE
• - Government Facilities: Tokyo Metropolitan Government Building, Tokushima Prefectural Office, Gifu Prefectural Office, Aichi Prefectural Police Headquarters

For more examples and in-depth information, visit JTOWER's case studies.

About JTOWER

Founded in June 2012, JTOWER Inc. is Japan's first infrastructure sharing company, specializing in indoor telecommunications equipment consolidation as well as outdoor tower sharing solutions. Committed to realizing its vision of bringing the most advanced infrastructure sharing models from Japan to the world, JTOWER is continuously expanding its service offerings to meet the demands of the future. The company is headquartered in Minato, Tokyo, under the leadership of CEO Atsushi Tanaka. More info at JTOWER's official website.