ENVALITH
トビラシステムズ株式会社 logo

Tobila Systems Inc.

4441Standard MarketInformation & Communication

トビラシステムズ株式会社 logo
Tobila Systems Inc.4441

Security Business

Core business providing nuisance information filtering services to telecom carriers and financial institutions

PeriodCurrentPreviousChange
Segment revenue (first-half cumulative)¥995 million¥970 million
Segment profit (first-half cumulative)¥679 million¥715 million
Segment profit margin (first-half cumulative)68.3%73.7%
Stock revenue (first-half cumulative)¥946 million¥881 million
Flow revenue (first-half cumulative)¥49 million¥89 million

Business Details

Built on a proprietary nuisance information database, the segment offers three services targeting mobile, fixed-line, and other use cases. Embedded in the option packs of the three major carriers—KDDI, SoftBank, and NTT Docomo—the segment has established a stable revenue base through a usage-based billing model linked to subscriber counts. The segment profit margin remains high at approximately 68%, and the business serves as the core of company-wide earnings. In the first half of FY2026 (ending October 2026), revenue increased 2.5% year on year, maintaining a solid trajectory.

Recent Overview

Revenue grew steadily, but segment profit declined 5.0% year on year due to increased costs

In the first half of FY2026 (ending October 2026), Security Business revenue was ¥995 million (up 2.5% year on year), maintaining a solid trend. On the other hand, segment profit was ¥679 million (down 5.0% year on year), and the profit margin declined to 68.3%. Notable new developments include the start of database provision to NTT Town Page's 'Fraud Countermeasures' app in March 2026 and the integration of functionality into KDDI's 'Ponta Pass' iOS app in April 2026. Pricing terms were also raised upon renewal of contracts with certain telecom carriers.

Key Products

service
Nuisance Information Filter Service for Mobile

Embedded in the option packs of the three major carriers—KDDI, SoftBank, and NTT Docomo—the service generates stable revenue through a usage-based billing model linked to subscriber counts. Starting in April 2026, the 'Nuisance Message/Call Block' function began to be offered within KDDI's 'Ponta Pass' iOS app, expanding service touchpoints without requiring installation of a dedicated app.

service
Nuisance Information Filtering Service for Fixed-Line Phones

The 'Nuisance Call Block' function, leveraging the nuisance information database, is provided for JCOM's 'Cable Plus Phone.' Free provision began in January 2026, reducing the economic burden at the time of enrollment, and the number of contracts increased year on year.

product
Tobila Phone (External Attachment Device for Phones)

A hardware product for fixed-line phone users that works with the nuisance information database to determine and block nuisance calls upon incoming calls. It constitutes flow revenue within the Security Business.

service
Sagitore

A training service that allows users to learn about and experience special fraud tactics. It is classified under other services within the Security Business.

platform
Nuisance Information Database Provision (External Integration)

Since March 5, 2026, the nuisance information database has been provided to 'Fraud Countermeasures by NTT Town Page,' an app recommended and certified by the National Police Agency, which NTT Town Page began offering free of charge. Expansion to financial institutions and other entities is ongoing, and the growing number of recipients is contributing to revenue growth.

Growth Drivers

  • Growing social demand amid worsening special fraud damage (total nationwide damage in 2025 exceeded ¥3,257 million, the worst level on record)
  • Government request for telecom carriers to strengthen nuisance call/SMS countermeasures and promote free provision, based on the 'Comprehensive Countermeasures to Protect the Public from Fraud 2.0' (April 2025)
  • Expansion of contracts driven by the start of free provision of 'Nuisance Call Block' for JCOM's Cable Plus Phone (January 2026)
  • Expanded service touchpoints from the integration of the 'Nuisance Message/Call Block' function into KDDI's 'Ponta Pass' iOS app (April 2026)
  • Start of database provision to NTT Town Page's 'Fraud Countermeasures by NTT Town Page' (an app recommended and certified by the National Police Agency) (March 2026)
  • Expansion of nuisance information database recipients (rollout to financial institutions and external operators, etc.)
  • Improved unit pricing from upward revision of pricing terms upon renewal of contracts with certain telecom carriers

Risks

  • Dependence on a business model embedded in telecom carriers' option contracts (customer concentration risk: KDDI, SoftBank, and NTT Docomo together account for approximately 59% of revenue)
  • Impact on the revenue model from telecom carriers' push to offer nuisance call countermeasure services free of charge
  • Increasing costs for database updates and technical responses due to the diversification and sophistication of special fraud tactics (e.g., misuse of video calls and messaging apps)
  • Risk of slowing subscriber growth as the mobile service matures (flow revenue declined sharply, down 45.4% year on year)
  • Downward trend in segment profit margin (from 73.7% in the prior first half to 68.3% in the current first half) and profit pressure from rising company-wide costs
  • Continued dependence on a single business model due to delays in launching new and adjacent businesses

Last updated: January 26, 2026