Tobira Systems <4441> develops and provides mobile, landline, and business nuisance information filter systems. Its main nuisance information filter business offers three services for mobile, landline, and business phones, covering all aspects of telephone communication. By collecting phone numbers, SMS, and URLs in the "nuisance information database" and updating it daily, the company blacklists dangerous phone numbers, SMS, and URLs to protect its users from potential risks.

The company primarily provides its services through optional contracts with major telecommunications carriers, while also expanding its alliance partner network. The contract models include a fixed contract model with fixed contract amounts that are not affected by changes in the number of subscribers or monthly users, a model that is linked to the number of subscribers and unit price of optional packs available for the company's services, and a model that is linked to the monthly number of users and unit price of the company's services. By selling through major telecommunications carriers, the company can focus on improving the accuracy of its apps. In terms of revenue for the 2023 fiscal year for the nuisance information filter business, sales from mobile filter services account for 72.3%. As of April 2024, the monthly number of users is approximately 14.19 million, but there seem to be over 40.64 million users who can use the company's services without paying additional fees. Additionally, once a contract is signed, it is difficult to cancel.

For the first half of the 2024 fiscal year, accumulated revenue was ¥1,154 million, an increase of 14.3% compared to the same period of the previous year, and operating profit reached ¥437 million, an increase of 22.5%. The increase in revenue for the mobile segment was due to an increase in the contract amount for fixed contracts and an increase in unit price through contract renewals for the model linked to the number of subscribers. Additionally, the business phone segment continued to grow with "Tobira Phone Biz" and "Tobira Phone Cloud" increasing by 64.2%. For the 2025 fiscal year, it is expected that revenue will increase by 14.0% to ¥2,350 million compared to the previous year, and operating profit will increase by 10.6% to ¥755 million.

The number of recognized cases of special fraud in 2023 was 19,038, with a total amount of damage of ¥45.2 billion, the highest since 2016. Many of the fraudulent transfers in internet banking are due to phishing, and both the amount of damage and the number of incidents are the highest on record in 2023. Recently, the number of detected investment fraud SMS has increased dramatically, becoming a social issue. In this market environment, the company has almost no competitors and is leading the market share due to its overwhelming technological strength and its relationship with the three major telecommunications carriers. In addition, with over 0.2 billion mobile phone contracts, there is high expectations for strategies to increase unit prices. Recently, the company has been focusing on business phone filter services as a growth area, building on the stable revenue from mobile services. Furthermore, the company is also working in the field of voice text engines and investing in telephone and other areas using its abundant cash. It is worth noting that despite being a growth company, its dividend yield is over 2%.