Japan ENERGY AND UTILITIES Companies
Approximately 3,409 real businesses classified under Electricity, Gas, Steam and Air Conditioning Supply in Japan, with officer, shareholder and beneficial ownership records sourced directly from official government registries.
Approximately 3,409 real businesses operate in the Electricity, Gas, Steam and Air Conditioning Supply sector across Japan. Generation and distribution assets sit on critical national infrastructure — which is exactly why almost no country lets them change hands quietly. Utility ownership here, spanning electricity, gas, steam, district heating and cooling, and renewable generation, is routinely subject to sector-specific regulatory approval and, in many countries, foreign-investment screening that goes well beyond standard company registration. The paperwork to operate a power plant and the paperwork to own one are two separate regulatory tracks entirely.
10 companies in this sector are indexed on Zavia so far, part of a continually growing dataset.
Beneficial-ownership and registration rules for Electricity, Gas, Steam and Air Conditioning Supply companies in Japan follow the same national framework as every other sector there.
Full Japan beneficial ownership overviewTop Electricity, Gas, Steam and Air Conditioning Supply 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
Nuclear power policy marked a genuine turning point: TEPCO’s Kashiwazaki-Kariwa Unit 6, the world’s largest nuclear plant by capacity, restarted February 9, 2026 and reached commercial operation March 18, 2026 — its first reactor restart since the 2011 Fukushima disaster and mandatory safety shutdowns. Japan now has 15 operating nuclear reactors with combined capacity of 33 GW, though TEPCO has delayed Unit 7’s restart to 2029-2030.
Government estimates that Unit 6 alone could displace approximately 1.3 million tons of LNG imports (roughly 62 Bcf of natural gas) annually, a direct energy-security benefit. Counterparties verify a power-sector counterparty’s actual current nuclear-generation capacity, restart timeline, and fuel-mix exposure directly.
Who uses Japan electricity, gas, steam and air conditioning supply ownership data
The three checks this sector's data is most often run for.
Kashiwazaki-Kariwa-Restart Verification
TEPCO’s Kashiwazaki-Kariwa Unit 6, the world’s largest nuclear plant by capacity, restarted February 9, 2026 and reached commercial operation March 18, 2026 — its first reactor restart since the 2011 Fukushima disaster and mandatory safety shutdowns; Japan now has 15 operating nuclear reactors with combined capacity of 33 GW. Counterparties verify a power-sector counterparty’s actual current nuclear-generation capacity and TEPCO relationship directly.
Unit-7-Delay Verification
TEPCO has delayed Kashiwazaki-Kariwa Unit 7’s restart to 2029-2030; counterparties verify a power-sector counterparty’s actual current nuclear-restart timeline directly rather than assume all units are proceeding on the same schedule.
LNG-Displacement Verification
Government estimates that Kashiwazaki-Kariwa Unit 6 alone could displace approximately 1.3 million tons of LNG imports (roughly 62 Bcf of natural gas) annually, a direct energy-security benefit; counterparties verify a power or energy-sector counterparty’s actual current fuel-mix and import-dependency exposure 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 Electricity, Gas, Steam and Air Conditioning Supply companies are registered in Japan?
Approximately 3,409 real businesses operate under Electricity, Gas, Steam and Air Conditioning Supply in Japan.
What does the Electricity, Gas, Steam and Air Conditioning Supply sector include in Japan?
Generation and distribution assets sit on critical national infrastructure — which is exactly why almost no country lets them change hands quietly. Utility ownership here, spanning electricity, gas, steam, district heating and cooling, and renewable generation, is routinely subject to sector-specific regulatory approval and, in many countries, foreign-investment screening that goes well beyond standard company registration. The paperwork to operate a power plant and the paperwork to own one are two separate regulatory tracks entirely.
How is company ownership disclosed for Electricity, Gas, Steam and Air Conditioning Supply 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 Electricity, Gas, Steam and Air Conditioning Supply.
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 Electricity, Gas, Steam and Air Conditioning Supply companies in other countries?
Yes — the Electricity, Gas, Steam and Air Conditioning Supply sector directory lists every country with recorded Electricity, Gas, Steam and Air Conditioning Supply companies on Zavia.
Can Zavia monitor changes to Electricity, Gas, Steam and Air Conditioning Supply 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 Electricity, Gas, Steam and Air Conditioning Supply 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.