LY Corporation

LINEヤフー / LINEヤフー株式会社

LY Corporation operates Japan's major consumer internet platforms, integrating AI assistants into messaging, search, and commerce to leverage its vast local data ecosystem.

TSE: 4689 (Prime Market)
Other: YAHOY (OTC)
Profile as of September 12, 2026
#130 in the AsiaAI Tech Index
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LY owns valuable Japanese user access and contextual data but competes against global firms controlling advanced models and cloud infrastructure. Its AI opportunity lies in applying third-party models to its local ecosystem to improve monetization and retention, though it does not yet report a standalone AI revenue stream.

Key figures

Revenue FY2025: 2.036 trillion Japanese yen
Revenue growth FY2025: 6.2%
Operating margin FY2025: 16.8%
Net income FY2025: 193.692 billion Japanese yen
R&D spend FY2025: Not disclosed
Capital expenditure FY2025: Not disclosed
Market capitalization Sep 11, 2026: 3.734 trillion Japanese yen (US$23.64 billion) Estimate
Adjusted EBITDA FY2025: 496.681 billion Japanese yen
Cumulative registered patents Mar 31, 2025: 4,482
AI-related patents Mar 31, 2025: 393
Engineers Mar 31, 2025: 4,855

Overview

LY Corporation was formed through the October 2023 reorganization and merger of Z Holdings, LINE Corporation, Yahoo Japan Corporation, Z Entertainment, and Z Data. It supplies consumer internet distribution, proprietary first-party behavioral and transaction data, advertising technology, messaging interfaces, search, and digital commerce. The company reaches users primarily through LINE and Yahoo! JAPAN, which serve as major Japanese consumer internet entry points. Its operations are divided into Media, Commerce, and Strategic businesses, with recent growth driven by the consolidation of PayPay-related financial services. LY's defensible assets are local consumer distribution and large-scale first-party data rather than proprietary AI infrastructure. It operates under Japanese privacy, security, telecommunications, and platform rules, giving it a deep operational moat in its domestic market.

The AI angle

LY integrates AI into consumer discovery, search, advertising targeting, shopping assistance, and customer support. Its principal AI product is Agent i, a service combining the former Yahoo! JAPAN AI Assistant and LINE AI. Launched in April 2026, Agent i reached 22 domains by June 2026 and connects AI agents to data from more than 100 LY services. The company works closely with OpenAI on internal and user-facing deployments, developing 32 AI use cases by December 2024. AI demand reaches revenue indirectly by improving advertising relevance, search engagement, merchant matching, commerce discovery, and operating efficiency. LY does not disclose the share of revenue attributable to AI products or AI-enabled advertising. Agent i remains an application-layer feature rather than a reported revenue segment, positioning LY as an AI distributor rather than an infrastructure provider. Its relevance is primarily in application distribution and data-enabled consumer services.

Technology and moat

LY's moat is its combined data and distribution loop in Japan. It holds LINE's relationship graph, Yahoo! JAPAN's search and portal traffic, merchant catalogues, advertising relationships, and integrated consumer service history. This local ecosystem integration improves relevance, recommendation, retrieval, and transaction execution. A competing AI assistant can obtain a capable large language model from OpenAI, Google, or Anthropic, but it cannot quickly replicate LY's established Japanese-language product surfaces and advertiser integrations. The company reports 4,482 cumulative registered patents and employs 4,855 engineers, representing 45% of its regular-organization employees. However, it remains dependent on external providers for foundation-model capabilities and lacks the global search scale, cloud infrastructure, and frontier AI investment of competitors like Google and Meta. Against domestic rivals like Rakuten and Mercari, LY leverages its broader messaging and search surfaces.

Five-pillar assessment

Scale and market position: A major Japanese consumer internet platform with extensive domestic distribution through LINE, Yahoo! JAPAN, and PayPay-linked services.
Technology and R&D: Deep platform integration, data operations, and consumer-service orchestration, but dependent on external providers for foundation models and cloud infrastructure.
Supply-chain centrality: Uses OpenAI models for AI features and operates within the SoftBank and NAVER corporate ecosystems.
Financial momentum: Steady revenue growth driven by the Strategic Business and PayPay consolidation, offset by flat Media Business growth and Commerce operational disruptions.
Governance and quality: Controlled by SoftBank through A Holdings, facing regulatory scrutiny over LINE data governance and Japan-Korea political sensitivities.

Supply chain and relationships

LY depends on external suppliers for foundation-model capabilities, cloud computing, data-center infrastructure, and third-party chip supply chains. Its primary disclosed AI collaboration is with OpenAI, which provides models for internal and user-facing use cases. This relationship makes LY dependent on externally supplied foundation-model capability and Japanese-language model performance that it does not internally own. On the customer side, LY does not disclose named external end customers for its AI services. Its core activities are consumer advertising, merchant services, commerce, financial services, and digital-platform transactions rather than enterprise sales to a small set of identified cloud or chip customers. Revenue concentration by named customer is not disclosed, reflecting its broad consumer and merchant base.

Suppliers

OpenAIProvides foundation models for AI use cases

Partners

SoftBankCo-owner of parent company A Holdings
NaverCo-owner of parent company A Holdings

Competitors

GoogleInferredCompetes in search, advertising, and AI assistants
Meta PlatformsInferredCompetes in digital advertising and messaging
Rakuten GroupInferredCompetes in commerce, advertising, and payments
MercariInferredCompetes in e-commerce and consumer marketplaces

Geopolitics and risk

LY is geographically concentrated in Japan and Taiwan-facing services. Its core assets are directly exposed to Japanese rules on data handling, platform safety, targeted advertising, and communications security. Regulatory attention following LINE-related data incidents raises compliance costs and constrains cross-border operational arrangements, creating reputational risk for a messaging platform with large consumer reach. A Holdings, LY's direct parent, is a 50:50 venture between SoftBank and NAVER, and Japanese policy scrutiny has focused on governance and security arrangements connected to LINE's Korean corporate ties. The company's reliance on foreign foundation models and cloud ecosystems creates exposure to pricing, availability, data-residency, and service-continuity risks. It must navigate competition from global AI platforms that can embed assistants directly into operating systems and browsers.

Risk matrix
Risk	Severity	Why it matters
Japanese privacy and communications regulation	High	Directly exposes core assets in consumer communications, search, advertising, and first-party data.
LINE-related cybersecurity scrutiny	High	Raises compliance costs and creates reputational risk for the messaging platform.
Competition from global AI platforms	High	Global providers can embed AI assistants directly into operating systems, browsers, and search.
Dependence on foreign foundation models	Medium	Creates exposure to pricing, availability, data-residency, and service-continuity risks.
SoftBank-NAVER ownership sensitivity	Medium	Japanese policy scrutiny has focused on governance connected to LINE's Korean corporate ties.
Digital-advertising cyclicality	Medium	Earnings remain exposed to advertising budgets and competitive auction pricing.
Commerce operational disruption	Medium	System outages can affect Commerce Business performance and service availability.
Payments and financial-services regulation	Medium	The Strategic Business faces licensing, consumer-protection, and capital requirements.

Governance and ownership

LY is a privately controlled listed company within the SoftBank corporate group, not a state-owned enterprise. A Holdings Corporation directly holds 62.5% of LY's voting rights and is consolidated by SoftBank. A Holdings is itself jointly held on a 50:50 voting-rights basis by SoftBank and NAVER interests. The company is led by professional management, with Takeshi Idezawa serving as President and CEO. Kentaro Kawabe serves as Chairperson but is scheduled to retire at the June 2026 annual shareholders meeting. LY's regulatory posture is shaped by Japanese corporate governance requirements, telecommunications and platform regulation, payment and financial-services obligations, and continuing government scrutiny of LINE-related data protection.

What to watch

Whether Agent i converts from a consumer feature into measurable increases in search engagement, advertising conversion, or commerce transactions.
Whether LY discloses AI-specific revenue, AI-user adoption, or inference-cost trends rather than grouping AI effects within broader segments.
Whether the Media Business can return to sustained growth after FY2025's 0.4% revenue increase.
Whether the Strategic Business maintains growth after changes in PayPay-related consolidation scope.
Whether Japanese regulatory requirements cause further changes to NAVER's role or data-governance arrangements.
Whether OpenAI dependence broadens into multi-model sourcing or proprietary Japanese-language models.

Recent developments

August 26, 2026Published the engineering architecture of the Agent i platform, including Agent Builder and Agent Runtime.
June 30, 2026Expanded Agent i to 22 cumulative domains, including beta services, and added a finance agent.
May 8, 2026Reported FY2025 revenue of 2.036 trillion Japanese yen and adjusted EBITDA of 496.681 billion Japanese yen.
April 20, 2026Launched Agent i, an AI-agent service combining consumer AI functions across LINE and Yahoo! JAPAN.
December 23, 2025Announced that Kentaro Kawabe will retire as Chairperson and Representative Director at the June 2026 annual shareholders meeting.

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About this profile

Compiled with AI-assisted research from company filings, market data, and published reporting as of September 12, 2026, then reviewed by AsiaAI.FYI. Figures marked Estimate are not company-reported. Check primary filings before relying on any number.

Confidence: B. Revenue, profitability, ownership, and market capitalization are supported by company disclosures, but R&D expense, capital expenditure, and AI-specific revenue are not disclosed.

Main sources: Annual Securities Report; Financial-results releases; Integrated-report indicators; Corporate-governance disclosures; Company product announcements.

All 76 sources

Position in the AI stack

Distributes AI functions through LINE and Yahoo! JAPAN, linking them to local behavioral, commerce, search, and communication data.

Legal name: LY Corporation
Formerly: Yahoo Japan Corporation, Z Holdings Corporation
Headquarters: Chiyoda, Tokyo, Japan
Founded: 1996
Founders: Masahiro Inoue
SoftBank
Leadership: Takeshi Idezawa / 出澤剛, President and Representative Director, Chief Executive Officer
Kentaro Kawabe / 川邊健太郎, Chairperson and Representative Director
Employees: 29,863 (2026-03-31)
Ownership: Publicly listed; part of SoftBank Group
Incorporated: Japan
Listings: TSE: 4689 (Prime Market)
Other: YAHOY (OTC)
Business: Consumer internet platforms, digital advertising, and messaging
Sector: Internet Platforms & Cloud
Website: lycorp.co.jp/en