Family Office

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BroadBand Tower Inc.

BroadBand Tower Inc. runs urban data centers and expands into renewable energy data centers in Japan.

BroadBand Tower Inc.

BroadBand Tower Inc. is a Japanese data center and IT services company headquartered in Tokyo. It operates urban data centers that provide colocation, hosting, cloud, storage, and cybersecurity services. The firm also serves as a Dell Technologies Titanium partner and supports client infrastructure across industries such as entertainment, advertising, and media. The company's core offering spans data center, cloud, storage, data management, MSP monitoring, network, and security services. It has deployed solutions for clients including Sega Sammy Holdings, DG Business Technology, OLM Digital, and CyberAgent. BroadBand Tower is expanding into renewable energy data centers through its Ishikari Renewable Energy Data Center project, which aims to deliver green colocation using local renewable power. BroadBand Tower reports that it maintains additional offices in San Francisco and Paris. As of late 2025, the firm signed a lease and renewable energy MOU for the first Ishikari Renewable Energy Data Center building. In early 2026, it partnered with Ishikari Renewable Energy Data Center No. 1 on connectivity services using dc.connect NeX and IOWN infrastructure. BroadBand Tower is a publicly traded company on the Tokyo Stock Exchange, making its financials and ownership transparent. Its strategic focus on urban data centers combined with a new greenfield renewable energy data center project differentiates it from pure colocation providers.

General information

Firm type

Family Office

Year founded

AUM

Undisclosed

Location

Region

Asia

Country

Japan

City

Tokyo

Corporate office

Tokyo, Japan

Additional offices

San Francisco · Paris

Sector focus

Data CenterCloudStorageNetwork InfrastructureEnergy Transition & RenewablesSecurity

Frequently asked questions

Who runs investment decisions at BroadBand Tower?

BroadBand Tower is a publicly traded company (Tokyo Stock Exchange), so investment decisions are made by its board of directors and executive management. The company's leadership is disclosed through regulatory filings.

How does BroadBand Tower source proprietary deal flow?

As a data center operator, BroadBand Tower generates business primarily through direct sales to enterprise clients and partnerships with technology vendors like Dell Technologies and NTT-ME. It does not operate as a traditional investment fund sourcing deals.

Is BroadBand Tower structured as a single family office or does it operate more like a venture firm?

BroadBand Tower is a publicly traded IT services company, not a family office or venture firm. It operates data centers and provides IT infrastructure services.

Does BroadBand Tower participate in fund commitments or only direct deals?

BroadBand Tower does not participate in fund commitments. It directly builds, operates, and sells data center and cloud services to enterprise clients.

What investment stages does BroadBand Tower typically target?

BroadBand Tower is not an investment firm; it does not target investment stages. Instead, it provides colocation, cloud, storage, and managed services to established enterprises.

Which sectors does BroadBand Tower explicitly avoid?

BroadBand Tower does not publicly disclose any sectors it avoids.

How is BroadBand Tower related to its parent company?

BroadBand Tower is a publicly traded company and its shareholder structure is disclosed in regulatory filings. As of early 2026, it reported changes in major shareholders, including the appointment of a new major shareholder (per company disclosures, April 2026).

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