KDDI
KDDI is Japan's second-largest mobile operator (TSE: 9433) serving 72 million subscribers across au, UQ mobile, and povo, with enterprise ICT, IoT, satellite direct-to-device, and integrated financial services spanning JPY 9.28 trillion in ecosystem assets.
- Company typePublic
- Founded1984
- HeadquartersTokyo, Japan
- Headcount5,001–10,000
- GTM typeB2B and B2C
- OfferingServices
What KDDI does
KDDI Corporation is a publicly traded Japanese telecommunications group (Tokyo Stock Exchange: 9433) headquartered at Takanawa, Minato-ku, Tokyo, and the second-largest mobile operator in Japan serving approximately 72 million subscribers across the au, UQ mobile, and povo consumer brands. The company traces its corporate history to DDI Corporation (1984) and KDD Corporation, with the modern KDDI entity formed through their 2001 merger. Its product portfolio spans mobile voice and data, 5G Standalone network services, satellite direct-to-device connectivity via the au Starlink Direct platform (400 million connections as of April 2026), IoT connectivity management through the Aeris IoT Accelerator (104 million IoT devices and 42 million connected vehicles globally), and integrated digital services including banking (Jibun Bank joint venture with MUFG), payments (au PAY), insurance, energy, and digital assets through the au Coincheck Digital Assets joint venture.
The company's underlying technology stack includes a nationwide 5G Standalone network with Samsung-powered AI RAN optimization (31% throughput uplift demonstrated), Ericsson uplink interference optimization rApps, a 6G RAN digital twin co-developed with Nvidia, Keysight, and Samsung Research America, and a proprietary Global Communications Platform serving as middleware for connected-vehicle telematics. KDDI generates recurring subscription revenue across consumer mobile (au/UQ/povo), enterprise ICT services (KDDI BUSINESS division), IoT connectivity (Soracom partnership with Gartner Leader placement), Telehouse data centers, and the JPY 9.28 trillion-asset au Financial Holdings ecosystem (a potential IPO candidate). FY2026 revenue reached JPY 6.060 trillion with net profit of JPY 698 billion after restatement due to a JPY 246.1 billion fabricated-transactions scheme at Biglobe and G-Plan subsidiaries.
KDDI's go-to-market combines direct retail (au Style flagship stores across major Japanese cities, the GINZA 456 concept store, au Online Shop), enterprise field sales through KDDI BUSINESS, OEM-embedded partnerships (BMW/Verizon for U.S. connected vehicles), and channel/distributor relationships with global operators (Verizon, T-Mobile, Circles for povo MVNO technology). The company is expanding into adjacent product surfaces including stablecoin payments (Lawson/HashPort JPYC pilot), humanoid robotics (Avita partnership), digital pharmacy (Palm Healthcare JV with Mitsubishi Corporation), and Southeast Asian smart-city projects (Globe Telecom/Ayala in the Philippines, VNPT in Vietnam), backed by the JPY 30 billion Alumni Ventures Japan + US Bridge Fund and the JPY 1.2 trillion 'Power-to-Connect 2028' three-year capex plan.
KDDI firmographics
Firmographics- Name
- KDDI
- Legal name
- KDDI株式会社
- Website
- https://kddi.com
- Company type
- Public
- Founded year
- 1984
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Short description
- KDDI is Japan's second-largest mobile operator (TSE: 9433) serving 72 million subscribers across au, UQ mobile, and povo, with enterprise ICT, IoT, satellite direct-to-device, and integrated financial services spanning JPY 9.28 trillion in ecosystem assets.
- Ownership category
- akta.pro rank
Where KDDI is headquartered
LocationHeadquarters
- HQ city
- Tokyo
- HQ country
- Japan
- HQ region
- Asia
Offices6 records
Markets served
KDDI business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Infrastructure, Technology or R&D, Personnel, Marketing or Sales, Operations, Supply Chain, Others
Revenue model
- Mobile Telecommunications Services: Recurring mobile subscription revenue from au, UQ mobile, and povo brands serving ~72 million mobile subscribers in Japan. Revenue streams include voice, data plans, device financing, and related mobile services.
- Financial Services (au Financial Holdings): Non-telecom financial services including Jibun Bank (online bank with MUFG), au PAY payment services, insurance, and credit. KDDI is considering an IPO for au Financial Holdings which holds 9.28 trillion yen in assets. These services drive customer retention and lifetime value within the au ecosystem.
- Enterprise/B2B ICT Services: KDDI BUSINESS division provides enterprise ICT solutions including cloud services, IoT connectivity management (via Aeris IoT Accelerator managing 104M+ IoT devices globally), system integration, and managed services to corporate clients.
- Digital Asset/Cryptocurrency Services: Strategic investment in Coincheck Group ($65M for 14.9% stake) and joint venture au Coincheck Digital Assets (50.1% KDDI-owned) to develop blockchain-based financial services including non-custodial digital asset wallet targeting 30M au brand users.
- Satellite Communication Services: au Starlink Direct satellite-to-device services, Starlink Wi-Fi for enterprise/hospitality venues, and IoT satellite connectivity generating revenue from consumer subscriptions and B2B partnerships.
- Advertising and Commerce: Biglobe and G-Plan subsidiaries (now being restructured after fraud incident) previously generated advertising revenue. KDDI also operates e-commerce platforms and shopping services through au brand.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Pay-as-you-go | povo Giga Charge Card eSIM data top-up plans |
| Subscription | Monthly | UQ Mobile Comikomi Plan Value 35GB |
| Subscription | Monthly | Amazon Prime promotion for au/UQ Mobile customers |
| Transaction based/ take rate | Pay-as-you-go | JPYC Stablecoin Payment Pilot at Lawson |
Go-to-market motion3 records
Distribution channels7 records
Marketing channels8 records
KDDI product offering
Product offeringCore offering
KDDI provides mobile telecommunications services to approximately 72 million subscribers in Japan through its multi-brand portfolio (au, UQ mobile, povo), alongside enterprise ICT, IoT connectivity, satellite direct-to-device communications (au Starlink Direct), data center services (Telehouse), and an integrated financial services ecosystem including Jibun Bank, au PAY, and au Financial Holdings. It operates nationwide 5G Standalone networks, a connected vehicle telematics middleware (Global Communications Platform) deployed with BMW on Verizon's network, and is co-developing a 6G RAN digital twin platform with Nvidia, Samsung, and Keysight.
Product overview
KDDI is a major Japanese telecommunications company operating a multi-brand mobile strategy with consumer brands au, UQ mobile, and povo, and enterprise brand KDDI BUSINESS. The company provides mobile telecommunications, satellite connectivity (au Starlink Direct), IoT solutions, financial services (au PAY, Jibun Bank), and digital services (Ponta Pharmacy, digital asset wallets). KDDI's infrastructure includes nationwide 5G Standalone networks, Telehouse data centers, and satellite backhaul via SpaceX. Recent innovations include AI-driven network optimization with Samsung, autonomous network frameworks, and Gemini-based enterprise AI services. The company expanded into stablecoin payments through Lawson partnership and humanoid robotics via Avita partnership, targeting both consumer lifestyle integration and enterprise digital transformation.
Differentiator
Problem solved
Functional benefit
Brands
- au: Primary consumer mobile brand of KDDI serving approximately 72 million mobile subscribers, offering 5G services, satellite connectivity via au Starlink Direct, and a comprehensive ecosystem of lifestyle services including finance, insurance, energy, and retail.
- UQ mobile
- povo
- KDDI BUSINESS
- Jibun Bank
- au Financial Holdings
- Ponta
Products and services
- au mobile service Primary consumer mobile telecommunications brand serving approximately 72 million mobile subscribers in Japan with 5G voice and data plans, satellite connectivity, and integration with au PAY, au Energy, entertainment, and lifestyle services.
Quantifiable outcome
- 31% average increase in 5G downlink throughput with Samsung AI optimization (up to 52% in dense urban areas)
- +5 more outcomes
Companies that use KDDI
Customer profileNamed customers9 records
Segments5 records
Ideal customer profiles4 records
KDDI technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
AI capability9 records
Feature5 records
KDDI partnerships and signals
Strategic signalPartnerships
16 partnerships are on record, tiered core and minor.
- LawsoncoreKDDI signed basic agreement with Lawson and HashPort to conduct technical trial of yen-denominated stablecoin (JPYC) payments at Lawson Takanawa Gateway City store in Tokyo from August 2026. The proof-of-concept evaluates system integration with POS terminals, checkout operations, payment processing times, and wallet usability. Initially restricted to employees of participating companies before considering broader consumer rollout to Lawson's 14,697-store network.
- BMW Group / Verizon BusinesscoreVerizon Business and KDDI partnered to provide 5G Standalone and LTE connectivity for all newly manufactured BMW Group vehicles (BMW, MINI, Rolls-Royce) sold in the U.S. market. KDDI's Global Communications Platform serves as the middleware layer controlling connectivity and data flowing through Verizon's 5G network. The service covers OEM-level telematics infrastructure for firmware updates, maps, subscription services, and vehicle health monitoring.
- KDDI SmartDrone / METIminorKDDI and its subsidiary KDDI SmartDrone selected for Japanese government-funded feasibility study under METI's Global South Future-Oriented Co-Creation programme to assess AI-enabled drone deployment in Southeast Asia (Vietnam and Philippines) for disaster response and infrastructure inspection.
- Nvidia, Keysight Technologies, Samsung Research AmericacoreKDDI launched joint initiative with Nvidia, Keysight Technologies, and Samsung Research America to develop a high-fidelity Radio Access Network digital twin platform for AI-driven optimization and autonomous network operations supporting the 6G era. Platform will create virtual replicas of RAN conditions to train, test, and validate AI models without disrupting live commercial networks. Prototype targeted by end of March 2028, broader expansion by 2030.
- Securitize JapanminorKDDI signed MoU with Securitize Japan to explore development of next-generation financial services using blockchain technology, focusing on joint business opportunities using Securitize Japan's real-world asset tokenization platform with emphasis on tokenization of government bonds and securities.
- NTT DocomominorKDDI and NTT Docomo jointly developed a shared millimeter-wave repeater designed to improve 5G coverage efficiency, with field testing scheduled to begin in Tokyo's Ueno Park in summer 2026. The repeater, developed in collaboration with Kyocera, can relay millimeter-wave signals from both operators' networks simultaneously using a single unit.
- AeriscoreKDDI signed IoT connectivity management service agreement extending its use of the Aeris IoT Accelerator platform (used since 2017, acquired by Aeris from Ericsson in early 2023). Platform manages 104 million IoT devices and 42 million connected vehicles globally. Agreement facilitates seamless service continuation while expanding Aeris' platform capabilities to support growing enterprise connectivity requirements worldwide.
- Intermedia (NEC UNIVERGE BLUE)minorIntermedia launched Cloud Calling for UNIVERGE BLUE connecting KDDI's voice services with NEC's UNIVERGE BLUE platform in Japan. Development removes barriers to full-cloud UCaaS deployments across Japan by enabling nationwide multi-site VoIP services through KDDI's local carrier connectivity.
- Globe Telecom and Ayala Corporation (Philippines)minorKDDI signed MoUs with Globe Telecom and Ayala Corporation during Philippine President Marcos Jr.'s state visit to Japan to conduct joint study on 'Intelligent City' initiatives in Makati City's business district using AI, IoT, and advanced telecom offerings. Partnerships expected to generate approximately PHP7 billion in revenues.
- Mitsubishi CorporationminorKDDI joined Mitsubishi Corporation and other partners in Philippine smart city and fintech initiatives under MoUs signed during President Marcos Jr.'s state visit, targeting Makati 'Intelligent City' development and GCash digital payment expansion projected to generate PHP7 billion in revenues.
- EricssoncoreEricsson and KDDI completed AI-driven field trial marking the first global deployment of Ericsson's AI-powered Uplink Interference Optimizer (UIO) rApp in a live network environment. Trial covered approximately 1,500 5G cells and 1,300 4G cells, delivering 9.6% average throughput improvement in 4G and 3.1% in 5G, with 27% improvement in 5G SINR. Validated interoperability via R1 interface standard supporting Level 4 autonomous network ambitions.
- VNPT (Vietnam)minorKDDI partnered with Vietnam's state-owned VNPT to launch povo mobile sub-brand in Vietnam, targeting young consumers and digital-native users, scheduled to launch within 2026. Service combines KDDI's povo platform with VNPT's domestic infrastructure and marketing reach, using technology from Singapore-based Circles. This marks the first export of povo brand internationally.
- J-Power (Electric Power Development)minorKDDI signed 20-year virtual Power Purchase Agreement with J-Power to offtake renewable energy from planned 8.4MW Iwaki Futago Wind Power Plant in Yurihonjo City, Akita Prefecture, with commercial operations targeted for January 2029. This marks the third vPPA between KDDI and J-Power, following agreements for 19.5MW Minami Osumi Wind Farm and 51.5MW onshore wind farm in Kaminokuni-cho, Hokkaido.
- SpaceX / T-Mobile (Starlink Direct)coreKDDI launched world's first cross-border direct satellite-to-smartphone roaming service through au Starlink Direct platform, enabling customers to connect via satellite in approximately 500,000 square miles across the United States in partnership with T-Mobile and SpaceX's Starlink. Initially supports Google Pixel devices, allowing voice calls, messages, and data apps including WhatsApp and Google Maps.
- Avita InternationalminorKDDI and Avita announced partnership to develop humanoid robots powered by 'Physical AI' for real-world service environments including retail, healthcare, and entertainment. Avita contributes avatar creation, conversational AI, and remote operation technologies; KDDI provides communications infrastructure and data systems. Companies displayed concept humanoid at MWC Barcelona and plan to begin commercial trials in autumn 2026, with potential deployment at au retail stores.
- Samsung ElectronicscoreKDDI and Samsung completed AI-based 5G network optimization trial on KDDI's commercial 5G Standalone network in Japan, testing Samsung's RAN Speed Optimizer across hundreds of cells in urban, suburban, and rural environments. Trial demonstrated 31% average increase in 5G downlink throughput (up to 52% in dense urban areas) using 100 MHz of 3.7 GHz TDD spectrum.
Scale indicators12 records
Recent moves7 records
Expansion highlights6 records
KDDI competitors and assessment
Company assessmentDirect peers
- SoftBank Corp: One of Japan's three major wireless carriers operating consumer mobile, enterprise, and IoT services; competes head-to-head with KDDI's au brand for Japanese subscribers and overlaps in 5G, financial services (PayPay ecosystem), and enterprise ICT.
- NTT Docomo: Japan's largest wireless carrier and KDDI's primary domestic competitor; both operate nationwide 5G networks, multi-brand consumer strategies, and enterprise ICT services, and they jointly developed a shared millimeter-wave 5G repeater in Tokyo.
- Soracom: KDDI-backed managed IoT connectivity platform recognized as a Leader in the 2026 Gartner Magic Quadrant for Managed IoT Connectivity Services; directly comparable in IoT connectivity, eSIM, and global cellular data services for connected products.
- Verizon: Major US wireless carrier; partnered with KDDI to provide 5G SA connectivity for BMW connected vehicles in the US, and Soracom-KDDI provides managed IoT connectivity services comparable to Verizon's enterprise IoT offerings.
- Rakuten Mobile: Japan's fourth mobile carrier and disruptive challenger using a cloud-native, Open RAN-based network; competes directly with KDDI's au/UQ/povo on price and digital experience, pressuring ARPU across the Japanese market.
- SK Telecom: Korean wireless carrier and fellow Starlink Direct partner; collaborates with KDDI on RLWRLD robotics investment and pursues adjacent 5G/AI network optimization, satellite D2D, and digital asset/fincoin strategies.
- T-Mobile US: US wireless carrier and partner with KDDI via SpaceX for the world's first cross-border Starlink Direct-to-Device roaming service; comparable in operating a nationwide wireless network with growing IoT, fixed wireless, and satellite adjacency.
Broad incumbents
- Deutsche Telekom: European telecom incumbent operating T-Mobile US and IoT businesses; comparable to KDDI in operating a diversified telecom portfolio spanning wireless, IoT, cloud, and digital services across multiple geographies.
- Vodafone: Global wireless carrier with enterprise IoT (Vodafone Business IoT), 5G, and managed connectivity offerings that overlap with KDDI/Soracom's global IoT platform; comparable in pursuing multi-country enterprise connectivity and digital services.
- AT&T: Large US incumbent carrier with comparable wireless, fiber, and enterprise services; competes with KDDI/Soracom in global managed IoT connectivity and offers overlapping connected-vehicle and 5G enterprise solutions.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key highlights7 records
Customer concentration
KDDI social profiles
Digital presenceKDDI compliance and trust
Trust signalCompliance6 records
KDDI financial estimates
Financial estimateRevenue estimate
Valuation estimate
KDDI leadership team
Management profileNumber of profiles
Profiles4 records
KDDI subsidiaries and ownership
Company hierarchySubsidiaries16 records
KDDI funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
KDDI M&A and investment
M&A and investmentM&A14 records
Investments95 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about KDDI
What does KDDI do?
KDDI provides mobile telecommunications services to approximately 72 million subscribers in Japan through its multi-brand portfolio (au, UQ mobile, povo), alongside enterprise ICT, IoT connectivity, satellite direct-to-device communications (au Starlink Direct), data center services (Telehouse), and an integrated financial services ecosystem including Jibun Bank, au PAY, and au Financial Holdings. It operates nationwide 5G Standalone networks, a connected vehicle telematics middleware (Global Communications Platform) deployed with BMW on Verizon's network, and is co-developing a 6G RAN digital twin platform with Nvidia, Samsung, and Keysight.
Is KDDI a public or private company?
KDDI is a public company. It is classified as public and is currently operating.
When was KDDI founded?
KDDI was founded in 1984. It employs 5,001 to 10,000 people.
Where is KDDI based?
KDDI is headquartered in Tokyo, Japan, in the Asia region.
How does KDDI make money?
Six revenue lines are on record. Mobile Telecommunications Services are the primary driver. The others are financial Services (au Financial Holdings), enterprise/B2B ICT Services, digital Asset/Cryptocurrency Services, satellite Communication Services and advertising and Commerce.
Who are KDDI's main competitors?
Direct peers on record are SoftBank Corp, NTT Docomo, Soracom, Verizon, Rakuten Mobile, SK Telecom and T-Mobile US. Broad incumbents are Deutsche Telekom, Vodafone and AT&T.
Does KDDI have an API?
Yes. KDDI provides an Open Development Platform (open-dev.kddi.com) that enables developers and partners to verify network connectivity with KDDI's networks. The platform offers API-based testing and validation tools for connectivity services. KDDI also provides au development information through official developer accounts on X (Twitter) @au_dev_info for technical documentation and reference materials. Developer documentation is at open-dev.kddi.com/home.