BroadBand Tower

What BroadBand Tower does

BroadBand Tower (TSE Standard: 3776) is a Tokyo-headquartered data center and IT infrastructure services provider founded in February 2000 by current Chairman and CEO Hiroshi Fujiwara. The company operates six urban data center sites — five in central Tokyo (Shindaibashi/Otemachi, Chiyoda, Meguro, Koto) and one in Osaka (Nishi-Umeda) — with a seventh greenfield site (Ishikari Renewable Energy Data Center in Hokkaido) scheduled to open in autumn 2026 under a DC-in-DC operating model. Facilities are positioned near major Internet Exchange points and provide colocation, server housing, and managed infrastructure to enterprise customers; a 131-person team as of December 31, 2025 supports operations alongside three consolidated subsidiaries (Japan CableCast, TSS Link, GiTV) that extend the platform into media, security, and video distribution.

The product portfolio is built on a unified connectivity-plus-platform architecture. The proprietary c9 Flex cloud family — c9 Flex-N (Zadara-powered, pay-as-you-go IaaS) and c9 Flex-V/D/P (VMware-based fixed-price IaaS) — anchors the cloud layer, complemented by Dell PowerScale/Isilon scale-out NAS, Unity, Scality RING, and PowerProtect DP4400 storage products (delivered through BBTower's Dell Technologies Titanium partnership). Closed-network connectivity is provided through dc.connect and dc.connect NeX to AWS, Azure, and Google Cloud, with NTT-ME JPDC Cabling added in October 2025. Security and managed services include Superna Eyeglass ransomware protection, managed WAF, malware protection, vulnerability assessment, RemoStorage multi-region backup, and 24/7 MSP monitoring. Certifications include ISO/IEC 27001 (since 2005), ISO/IEC 27017 (2024), JIPDEC Privacy Mark (2015), and METI DX Certified Operator (2021).

Revenue is generated through a mix of recurring subscriptions (colocation, RemoStorage, WAF, MSP), usage-based cloud billing (c9 Flex-N), hardware resale (Dell), and project-based professional services. GTM is direct enterprise sales supplemented by the Dell channel and partner integrations with AWS, Azure, GCP, NTT East, Zadara, and Arrosoft. Customers include Sega Sammy Holdings, CyberAgent, Digital Knowledge, OLM Digital, and Carol System, with the Dell PowerScale footprint spanning ~3,000 nodes/350+ clusters across 250+ end-user companies. Growth is being driven by the Hokkaido green DC, GPU/AI workload positioning, IOWN APN innovation with NTT East, and multi-cloud DR tooling via the Arrosoft/Zadara partnership.

Name

BroadBand Tower

Legal name

株式会社ブロードバンドタワー

Website

https://bbtower.co.jp

Company type

Public

Founded year

2000

Operating status

Operating

Headcount range

251–500 employees

Short description

BroadBand Tower is a Japanese data center and IT infrastructure services provider operating six urban data center sites across Tokyo and Osaka, delivering proprietary cloud (c9 Flex), Dell PowerScale enterprise storage, closed-network connectivity, security, and managed services to enterprise customers, with a new Hokkaido renewable-energy site opening in 2026.

Ownership category

akta.pro rank

Product category

Data Center & Cloud Infrastructure Services

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Wired Telecommunications Carriers (517111)

SIC

Computer Communications Equipment (3576), Computer Storage Devices (3572), Services-Facilities Support Management Services (8744), Services-Computer Rental & Leasing (7377)

akta.pro primary industry

Carrier Hotels & Network-Dense Colocation (HDABACAE)

akta.pro secondary industries

Data Center Interconnection (DCI) & Cross-Connects (HDABALAB), Edge Colocation & Distributed Data Center Services (HDABAOAB)

Keywords

• Data center services
• Cloud infrastructure
• Enterprise storage
• Managed security services
• Network connectivity

Headquarters

HQ city

Uchisaiwaicho

HQ country

Japan

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales

Revenue model

1. Data Center Services: Colocation services providing rack space, power, and network connectivity in BBTower's urban data centers across Tokyo and Osaka.
2. Cloud Services (c9): IaaS cloud services with usage-based pricing for compute, storage, and network resources. Includes c9 Flex-V (fixed monthly) and c9 Flex-N (usage-based) tiers.
3. Storage Solutions: Sale and support of enterprise storage products including Dell PowerScale (Isilon), Unity, Scality RING, and PowerProtect DP4400.
4. Network Services: Internet connectivity, closed-network connections to public clouds (AWS, Azure, GCP), and inter-data center connectivity services.
5. Managed Security Services: Cloud-based security services including managed WAF (attack遮断くん), malware protection, vulnerability assessment, and backup services.
6. MSP Monitoring Services: 24/7 server and network monitoring operations management services.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

BroadBand Tower provides integrated data center colocation, IaaS cloud (c9 Flex), enterprise storage (Dell PowerScale/Isilon), closed-network hybrid/multi-cloud connectivity (dc.connect), remote backup (RemoStorage), managed security (WAF, malware, vulnerability assessment), and 24/365 MSP monitoring to enterprise customers in Japan. Services are anchored by six urban data centers in Tokyo and Osaka, with a renewable-energy-powered Hokkaido facility scheduled to open in autumn 2026.

Product overview

BroadBand Tower operates a platform-plus-services model anchored by its proprietary data center infrastructure and cloud services. The core platform comprises six urban-type data center locations across Tokyo and Osaka, connected to major IXs and cloud providers (AWS, Azure, Google Cloud) via proprietary closed-network services (dc.connect, dc.connect NeX). The company's primary cloud product is the c9 Flex family: c9 Flex-N (Zadara-powered, pay-as-you-go IaaS) and c9 Flex-V/D/P (VMware-based fixed-price IaaS), both enabling hybrid and multi-cloud architectures. Storage offerings are centered on Dell Technologies PowerScale/Isilon scale-out NAS (supplemented by Unity and Scality RING), complemented by add-on data management modules including Superna Eyeglass (ransomware protection), DataDobi (migration), Alog (data governance), and CloudAny (cross-cloud migration/DR). Security services include managed WAF, malware protection, vulnerability assessment, and remote backup (RemoStorage). MSP provides 24/365 monitoring and operations management. The Ishikari Renewable Energy Data Center (opening autumn 2026) expands the geographic footprint with a green, 100% renewable-powered facility. The product portfolio is unified by BBTower's connectivity expertise, spanning colocation, cloud, storage, network, security, and managed services.

Differentiator

Problem solved

Functional benefit

Brands

• c9 Flex: 自社クラウドサービス（IaaS型）- シーナイン
• dc.connect
• RemoStorage
• BOIS
• dc.connect NeX
• CloudAny

Products and services

• Data Center Services (Colocation)
• c9 Flex Cloud Service (IaaS)
• dc.connect (Hybrid/Multi-Cloud Connectivity)
• RemoStorage (Remote Backup)
• Managed WAF (Attack Blocking Service)
• Malware Protection Service
• Vulnerability Assessment Service
• Monitoring Service Plus (MSP)
• Dell Technologies PowerScale / Isilon
• Dell EMC Unity Storage
• Scality RING
• Dell Technologies PowerProtect DP4400
• Superna Eyeglass
• CloudAny
• DataDobi / Datadobi StorageMap
• Alog ConVerter
• Green Power Service
• AI Infrastructure / GPU Server Services
• Dell Technologies Network Switches and Servers
• Ishikari Renewable Energy Data Center

Quantifiable outcome

• New Ishikari Renewable Energy Data Center scheduled to open in Fall 2026 with 100% renewable energy
• +1 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

Feature4 records

Partnerships

Ten partnerships are on record, tiered key, strategic and minor.

• Ishikari Renewable Energy Data Center 1st (合同会社石狩再エネデータセンター第1号)keyStrategic or Co-development Partner · 28 November 2025Building lease and renewable energy power supply agreement for BBTower to operate data center services in the Ishikari Renewable Energy Data Center (opening Fall 2026).
• NTT East (NTT東日本)keyStrategic or Co-development Partner · 17 November 2025Joint demonstration agreement using IOWN APN (All-Photonics Network) for long-distance storage system between Tokyo and Hokkaido data centers. First implementation of unified file system over 1000km+ distance.
• NTT-ME (NTTエレムイー)keyTechnology or Integration · 7 October 2025導入JPDC Cabling service for inter-data center connectivity, connecting BBTower's New Otemachi site to various data centers in Tokyo metropolitan area with redundant configuration.
• Arrosoft (Arrosoft Solutions LLC)keyTechnology or Integration · 8 August 2025Partnership to sell and support Arrosoft's CloudAny - a cloud migration and disaster recovery tool enabling data transfer between on-premises, VMware, AWS, Azure, GCP, and c9 Flex services.
• ZadarakeyTechnology or Integration · 8 August 2025Partnership utilizing Zadara's Enterprise Edge Cloud Platform for c9 Flex N-series cloud service, enabling real-time resource management and flexibility.
• Dell TechnologieskeyChannel Partner/ Reseller/ DistributorTitanium partner status for Dell Technologies. Selling and supporting Dell PowerScale (Isilon), PowerProtect DP4400, Dell servers and switches. Channel Services Delivery Excellence Award winner.
• Tokyu Real Estate (東急不動産)strategicStrategic or Co-development PartnerComprehensive partnership agreement signed March 2023 to strengthen digital infrastructure and solve social issues related to data centers.
• Amazon Web Services (AWS)keyTechnology or IntegrationAWS Direct Connect partner providing closed-network connection between BBTower data centers and AWS cloud services.
• Microsoft AzurekeyTechnology or IntegrationAzure ExpressRoute partner for closed-network connection between BBTower data centers and Azure cloud services.
• HEROZminorStrategic or Co-development PartnerBusiness partnership in AI/IoT and digital infrastructure fields for technological innovation and sustainable society.

Scale indicators6 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Colt Technology Services: Global network and data center operator with significant Tokyo presence (Colt DCS), offering colocation, cross-connect, and on-demand cloud connectivity. Directly comparable to BBTower's urban data center and dc.connect NeX inter-DC connectivity services.
• Internet Initiative Japan (IIJ): Japanese IT infrastructure provider offering network connectivity, cloud (IIJ GIO), data center, and managed security services, primarily to enterprises. Overlaps heavily with BBTower's colocation, multi-cloud connectivity, and managed services lines in the same Japanese market.
• Sakura Internet: Japanese data center and cloud (IaaS) operator with its own facility footprint (Ishikari, Tokyo, Osaka) and a focus on serving domestic enterprise and research customers. Most directly comparable to BBTower on geographic footprint, services mix (cloud + colocation + storage), and customer base.
• IDC Frontier: Japanese data center and cloud (IDCF Cloud) operator affiliated with LY Corporation/Yahoo Japan. Competes with BBTower on domestic colocation, cloud IaaS, and hybrid connectivity for the same Japanese enterprise customer base.

Broad incumbents

• Equinix: Global data center and interconnection incumbent; operates IBX facilities in Tokyo and Osaka. Larger, broader portfolio than BBTower, but directly competes for IX-dense colocation and cloud on-ramp customers in the same metropolitan markets.
• CoreSite (American Tower): US-focused carrier-neutral data center and interconnection platform (owned by American Tower). Operates in different geographies but uses the same model of network-dense, IX-adjacent, multi-cloud-connected urban data centers that BBTower follows in Tokyo/Osaka.
• Digital Realty: Global hyperscale and interconnection data center platform with Japanese presence (acquired Interxion/Tokyo assets). Comparable in core colocation and cross-connect model, but operates at much larger scale across multiple regions.
• KDDI: Major Japanese telecom offering TEPCO affiliate data center services (KDDI TOKYO DATA CENTER, KDDI OSAKA), cloud, and managed services. Competes with BBTower particularly in network-dense urban colocation and hybrid cloud for large enterprises.
• NTT Data: Japan's largest IT services provider with extensive data center operations and cloud/system integration practice. Not a direct cloud/colocation competitor, but addresses the same enterprise customers' hybrid infrastructure needs as BBTower's full stack.
• NTT Communications (NTT): Major Japanese telecom and data center operator (Nexcenter/Netmagic) and BBTower's partner for IOWN APN. Overlaps with BBTower on domestic colocation, cloud connectivity, and managed services, but with substantially greater scale and portfolio breadth.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/bbtower_c9
• Facebookfacebook.com/bbtower
• LinkedInlinkedin.com/company/broadband-tower

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments4 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about BroadBand Tower