Best IT Companies in Japan
Approximately 6,567 real businesses classified under Information and Communication in Japan, with officer, shareholder and beneficial ownership records sourced directly from official government registries.
Approximately 6,567 real businesses operate in the Information and Communication sector across Japan. Software and telecom companies are the sector most likely to have four holding-company layers before you reach a real person — and it is rarely for tax reasons alone. Staged venture-capital and private-equity investment rounds, plus standard tax-efficient group structuring, both push ownership chains further here than in almost any other sector. The sector covers software publishing, IT services, telecom network operation, broadcasting, and publishing, and beneficial-ownership resolution is disproportionately relevant precisely because of that depth.
37 companies in this sector are indexed on Zavia so far, part of a continually growing dataset.
Beneficial-ownership and registration rules for Information and Communication companies in Japan follow the same national framework as every other sector there.
Full Japan beneficial ownership overviewTop Information and Communication Companies in Japan
Live from the register. Every row opens the full record — officers, shareholders and resolved group structure.
Analysis
What this data actually tells you
The mobile market is led by three incumbents: NTT Docomo (approximately 40.6% share, ~91 million subscribers), KDDI (approximately 30.6%, ~60 million), and SoftBank (approximately 24.8%, ~54.8 million), together holding approximately 97% of subscriber share as of 2025 (market-research estimates, not primary MIC data).
Rakuten Mobile, a newer market entrant with an estimated 4.1-8.6% share depending on source (~8.6 million subscribers), reached full-year profitability in FY2025 for the first time; exact subscriber-share percentages across sources were internally inconsistent in this research and should be verified against a primary Ministry of Internal Affairs and Communications figure before precise use. Counterparties verify a telecom counterparty’s actual current carrier relationship and market-share standing directly.
Who uses Japan information and communication ownership data
The three checks this sector's data is most often run for.
Three-Incumbent-Dominance Verification
NTT Docomo leads with approximately 40.6% share (~91 million subscribers), KDDI approximately 30.6% (~60 million), and SoftBank approximately 24.8% (~54.8 million) — the three incumbents together hold approximately 97% of subscriber share (2025, market-research estimates, not primary MIC data); counterparties verify a telecom counterparty’s actual current carrier relationship and market position directly.
Rakuten-Mobile-Profitability Verification
Rakuten Mobile, a newer market entrant with an estimated 4.1-8.6% share depending on source (~8.6 million subscribers), reached full-year profitability in FY2025 for the first time; exact subscriber-share percentages across sources were internally inconsistent and should be verified against a primary MIC figure before precise use. Counterparties verify a telecom counterparty’s actual current market-share standing directly.
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring for Japan companies — via API or a bulk data feed.
Frequently Asked Questions
How many Information and Communication companies are registered in Japan?
Approximately 6,567 real businesses operate under Information and Communication in Japan.
What does the Information and Communication sector include in Japan?
Software and telecom companies are the sector most likely to have four holding-company layers before you reach a real person — and it is rarely for tax reasons alone. Staged venture-capital and private-equity investment rounds, plus standard tax-efficient group structuring, both push ownership chains further here than in almost any other sector. The sector covers software publishing, IT services, telecom network operation, broadcasting, and publishing, and beneficial-ownership resolution is disproportionately relevant precisely because of that depth.
How is company ownership disclosed for Information and Communication companies in Japan?
The same national framework applies here as for every other sector in Japan — there is no sector-specific beneficial-ownership regime for Information and Communication.
Can I see all industries present in Japan?
Yes — the Japan company directory lists every industry with recorded companies for that jurisdiction, alongside the full beneficial-ownership overview for Japan.
Can I see Information and Communication companies in other countries?
Yes — the Information and Communication sector directory lists every country with recorded Information and Communication companies on Zavia.
Can Zavia monitor changes to Information and Communication companies in Japan over time?
A directory listing is a snapshot, not a live feed. Zavia's monitoring API tracks changes to registered shareholders, officers, and group structure for Information and Communication companies in Japan going forward, flagging updates as they are filed instead of requiring a manual recheck.
All industries in Japan
Every NACE section on this register, with live company counts.