What SoftBank BB Corp does

SoftBank Corp is a Japanese telecommunications carrier (TSE:9434) and the primary telecom operating subsidiary of SoftBank Group Corp (TSE:9984), headquartered at the Takeshiba Office in Minato-ku, Tokyo. The company operates one of Japan's three major mobile networks, delivering consumer mobile services under three differentiated brands (SoftBank, Y!mobile, LINEMO), fixed-line broadband (SoftBank Hikari, SoftBank Air), satellite internet (SoftBank Starlink Direct), and a SoftBank Energy retail electricity offering. Enterprise customers are served through dedicated field sales, the Executive Briefing Center, and the SB Partner Program ONE SHIP channel, with a portfolio spanning mobile device management, cloud/data center, network/VPN, IoT, RPA, digital marketing, AI, and a managed security stack branded NOZ SECURITY.

The underlying technology platform is anchored by SoftBank's 5G/4G mobile network, fixed-line infrastructure, and emerging space-terrestrial integration via Starlink and the proprietary UTX network concept. SoftBank packages AI capabilities into consumer-facing services (Perplexity Pro, Daredemo AI, Sakimiru generative AI for social issues) and is investing in a Next-Generation AI Data Center for sovereign AI and autonomous-agent workloads. Security is delivered through a tiered product set: consumer apps (Security One, Security Pack Premium at 770 yen/month, PC Security bundling McAfee Multi Access and Internet SagiWall rebranded to Miya-Buru on July 1, 2026) and enterprise MSS (NOZ SECURITY 24/7 human monitoring across EDR, SASE, CNAPP, vulnerability management, OT, and email security, integrating Cybereason, Palo Alto Cortex, Zscaler, Proofpoint, Wiz, Rapid7, Nozomi, Blackpanda, and others).

Revenue is primarily subscription-based across mobile, fixed-line, enterprise managed services, and add-on security/AI products, supplemented by device/hardware sales (iPhone, Samsung Galaxy, Google Pixel, Pocket WiFi). The customer base spans millions of mass-market Japanese consumers, accessibility-segment subscribers (Heart Friend Discount, Telephone Relay Service, Assist Guide, Koetora), SMEs, and large enterprises. Registered capital stands at 244,355 million yen with 19,150 single-entity employees and 58,432 consolidated employees as of March 31, 2026, and the company maintains ISO 27001, 9001, 14001, 20000-1, 27017, 27018, JIS Q 15001, and PAS 99 certifications plus telecommunications carrier registration No. 72.

Name

SoftBank BB Corp

Legal name

SoftBank Corp. (株式会社SBI Corp.)

Website

https://softbank.jp

Company type

Public

Founded year

1986

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

SoftBank Corp (TSE:9434) is a major Japanese telecommunications carrier providing consumer mobile (SoftBank, Y!mobile, LINEMO), fixed-line broadband, satellite internet, and enterprise ICT solutions including cloud, AI, cybersecurity, IoT, and managed security services across Japan.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Mobile telecommunications services: Revenue from providing mobile phone/mobile data services under the SoftBank, Y!mobile, and LINEMO brands. Includes voice, data, and messaging plans for individual consumers. Operates on subscription recurring revenue model with monthly billing.
2. Device/terminal sales: Revenue from sales of smartphones (iPhone, Samsung Galaxy, Google Pixel), tablets, data devices (Pocket WiFi), wearables, and accessories. Primarily one-time hardware sales bundled with service contracts.
3. Fixed-line internet and broadband: Revenue from SoftBank Hikari (fiber optic), SoftBank Air (fixed wireless broadband), and related fixed telecommunications services for residential and business customers.
4. Enterprise/business solutions: Revenue from comprehensive B2B offerings including mobile, network, VPN, cloud, AI, IoT, 5G, digital marketing, security, data center, and RPA solutions. Includes managed services and professional services.
5. Security and add-on services: Revenue from optional security services including Security Pack Premium (770 yen/month), Security Pack Plus variants, Security One (440 yen/month), PC Security (319 yen/month), and individual security add-ons. Also includes location-based services, point programs, and other subscription add-ons.
6. Energy services: SoftBank Energy ( 소프트 뱅크 덴키) offering electricity plans to residential customers.

Pricing tiers

Go-to-market motion3 records

Distribution channels7 records

Marketing channels10 records

Core offering

SoftBank BB Corp (also known as SoftBank Corp) is a Japanese telecommunications operator providing mobile communications (5G/4G LTE), fixed-line broadband (fiber and fixed wireless), and enterprise ICT solutions. It serves Japanese consumers through multi-brand mobile offerings (SoftBank, Y!mobile, LINEMO) and businesses through cloud, security, IoT, and network services. The company is a publicly listed subsidiary of SoftBank Group Corp.

Product overview

SoftBank Corp operates a multi-brand telecommunications portfolio comprising consumer mobile services (SoftBank, Y!mobile, LINEMO), fixed internet/phone (SoftBank Hikari, SoftBank Air), and enterprise solutions. The consumer mobile stack integrates AI services (Perplexity Pro, Daredemo AI, Sakimiru), satellite connectivity (Starlink Direct, UTX), and sports/entertainment (Basketball Live, D.LEAGUE). Accessibility services include Heart Friend Discount, Assist Guide, Telephone Relay Service, and Koetora. The security portfolio includes Security Pack Premium, Security One app, PC Security (McAfee + Internet SagiWall), and managed enterprise security under NOZ SECURITY brand. Enterprise offerings span AI solutions, mobile device management, network/VPN, cloud/data center, IoT, RPA, and 5G. The company operates sustainability initiatives including NatureBank and community support programs.

Differentiator

Problem solved

Functional benefit

Brands

• Y!mobile (ワイモバイル): Sub-brand offering mobile services with its own mascot (Futenyan) and target demographic, operated under SoftBank's multi-brand strategy.
• LINEMO (ラインモ)
• NOZ SECURITY
• セキュリティOne (Security One)
• ITSUDEMO SECURITY (いつでもセキュリティ)
• NatureBank (ネイチャーバンク)
• Miya-buru (みやブル)
• HeartFriend Discount (ハートフレンド割引)
• Shomei Adviser (スマホアドバイザー)

Products and services

• SoftBank Mobile
• Y!mobile
• LINEMO
• SoftBank Hikari
• SoftBank Air
• SoftBank Energy
• NOZ SECURITY
• Enterprise Mobile Solutions
• Enterprise Network & Cloud Services
• Enterprise Security Services

Quantifiable outcome

• Heart Friend Discount provides 220 yen/month permanent reduction for disabled customers on basic plans, plus free handling fees and 60% option discounts.
• +3 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration29 records

AI capability14 records

Feature12 records

Partnerships

14 partnerships are on record, tiered core and minor.

• SB OAI Japan / OpenAI / SoftBank GroupcoreStrategic or Co-development PartnerSoftBank Corp, SB OAI Japan, SoftBank Group, and OpenAI are collaborating on a special enterprise event focused on AI applications for business. This partnership involves CEO Son Masayoshi (孫正義) and represents a significant AI-focused strategic collaboration.
• SoftBank Robotics Group Corp / SoftBank Robotics CorpcoreTechnology or IntegrationSubsidiary entities within the SoftBank Group developing and owning robotics brands including PEPPER, Whiz, and Servi. These entities hold associated trademark rights and operate as integrated business units.
• 一般��団法人日本財団電話リレーサービス (Japan Foundation for Telephone Relay Services / NFTRS)coreStrategic or Co-development PartnerNFTRS operates the Telephone Relay Service, which SoftBank supports as part of its social infrastructure mission. SoftBank contributes to the telephone relay service system where telecommunications carriers collectively fund the service's operational costs. SoftBank also offers the relay service to its customers.
• 東京大学先端科学技術研究センター 人間支援工学分野 (Tokyo University RCAST, Human Support Technology Lab)minorStrategic or Co-development PartnerSoftBank partners with Tokyo University's Advanced Science and Technology Research Center (RCAST) to develop the Short-Time Work (ショートタイムワーク) program, enabling people with disabilities to work less than 20 hours per week. This initiative received the Zero Project Award 2025.
• 株式会社フィート (Phi: Inc.)minorStrategic or Co-development PartnerSoftBank sponsors and supports Phi: Inc.'s KoeTora (こえとら) application, which converts text to speech and vice versa for deaf or speech-impaired users. SoftBank promotes this accessibility application as part of its social contribution initiatives.
• CybereasoncoreTechnology or IntegrationSoftBank offers Cybereason's security platform as a core enterprise security service, including Cybereason, Cybereason Simple Security (entry-level EDR), and Cybereason MTD (mobile threat defense).
• Palo Alto NetworkscoreTechnology or IntegrationSoftBank offers XDR powered by Palo Alto Networks CORTEX for enterprise threat detection and response, plus Cloud Firewall powered by Palo Alto Networks as a cloud-based next-generation firewall service.
• ZscalercoreTechnology or IntegrationSoftBank provides Zscaler's SASE solution including Zscaler Internet Access (secure web gateway), Zscaler Private Access (VPN replacement), and Zscaler Digital Experience (network quality visibility).
• ProofpointcoreTechnology or IntegrationSoftBank offers Proofpoint Email Security (next-generation email security), Proofpoint EFD (DMARC email authentication), and Proofpoint ITM (Insider Threat Management) as enterprise security solutions.
• McAfee LLCcoreTechnology or IntegrationSoftBank bundles McAfee Multi Access (antivirus and malware protection) as part of its PC Security service for consumer and business customers. McAfee Multi Access covers Windows and Mac, up to 3 devices per subscription.
• BBソフトサービス株式会社 (BB Soft Service Corp)coreTechnology or IntegrationBB Soft Service Corp develops and owns the SagiWall (詐欺ウォール/Internet SagiWall) fraud wall product, which SoftBank bundles and resells as part of its PC Security service. Trademark '詐欺ウォール' and 'Internet SagiWall' belong to BB Soft Service Corp.
• SBKK Group Companies / Subsidiary and Affiliated CompaniescoreStrategic or Co-development PartnerSoftBank Corp operates as part of a broader group of subsidiary and affiliated companies under SoftBank Group Corp. The company manages group company security through the SBKK Group Security Committee and has a 'SoftBank Group Company Security Guidelines' for consistent security management across group entities.
• 公益財団法人スペシャルオリンピックス日本 (Special Olympics Japan)minorStrategic or Co-development PartnerSoftBank has continuously sponsored Special Olympics Japan since 2005, providing free mobile device loans for event operations, athlete/staff communications, and emergency medical response communications.
• 第25回夏季デフリンピック競技大会 東京2025 Organizing CommitteeminorStrategic or Co-development PartnerSoftBank served as Total Support Member for the 25th Summer Deaflympics Tokyo 2025, providing communication terminals and help desk support for athletes and event personnel.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Rakuten Mobile: Japan's newest mobile network operator and aggressive price challenger. Rakuten Mobile is the most direct pricing competitor to SoftBank's mass-market and Y!mobile/LINEMO brands, and also competes via the Rakuten Ecosystem (Rakuten Pay, Rakuten Card).
• KDDI (au): Japan's second-largest mobile carrier, competing head-to-head with SoftBank across au mobile, UQ Mobile (sub-brand), fixed-line (au HIKARI), and enterprise services. Directly comparable multi-brand consumer strategy and enterprise ICT portfolio.
• NTT Docomo: Japan's largest mobile network operator and the closest direct competitor to SoftBank, offering consumer mobile, 5G, enterprise ICT, and d-payment/d-Barai financial services. Closely comparable on consumer mobile, enterprise, and security verticals.

Broad incumbents

• AT&T: Major US telecom incumbent providing consumer mobile, fiber, and enterprise networking/security services. Comparable as a publicly listed integrated carrier competing across consumer mobile, fixed broadband, and B2B ICT/security verticals.
• T-Mobile US: Major US wireless carrier with consumer mobile, fixed wireless, and enterprise services. Comparable as a publicly listed mobile carrier pursuing multi-segment strategy (consumer, enterprise, FWA broadband) and aggressive 5G investment.
• China Mobile: World's largest mobile operator by subscribers, offering consumer mobile, 5G, fixed broadband, and enterprise cloud/digital services. Comparable as a dominant incumbent carrier in its home market with similar multi-brand and enterprise ICT ambitions.
• Vodafone Group: Global telecom group operating mobile and fixed networks across Europe and Africa, with a strong enterprise (Vodafone Business) segment including IoT, cloud, and security. Comparable as a multinational integrated carrier with multi-brand and enterprise security exposure.
• NTT (Nippon Telegraph and Telephone): Parent of NTT Docomo and the largest telecom group in Japan with fixed-line, mobile, cloud, and data center operations. Comparable as a broad incumbent with overlapping capabilities across mobile, enterprise ICT, cloud, and security.
• Verizon Communications: US telecom incumbent offering consumer wireless, FWA broadband, fiber, and a deep enterprise security/networking portfolio. Comparable as a large integrated carrier with strong enterprise cybersecurity, managed services, and 5G investments.

Regional players

• PCCW / HKT: Hong Kong-based integrated telecom operator providing mobile, fixed, enterprise ICT, and a fintech/payments business. Comparable as an Asia-Pacific integrated carrier with consumer mobile plus enterprise solutions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xtwitter.com/SoftBank
• YouTubeyoutube.com/user/SoftBank
• Facebookfacebook.com/SoftBank
• Instagraminstagram.com/softbank_official
• LinkedInlinkedin.com/company/softbank-mobile

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about SoftBank BB Corp