Who owns J-POWER Transmission Network?
J-POWER Transmission Network is owned by J-POWER (Japan, TSE: 9513).[1]
This ownership is reported in official statements but has not yet been matched to a regulatory filing.
Evidence: Annual Securities Report (Yuho) for the year ended 31 March 2026 - Electric Power Development, EDINET (Financial Services Agency of Japan), 24 June 2026. Last checked .
Key facts
- Current owner
- Electric Power Development Co., Ltd. reported
- Owner HQ
- 🇯🇵 Japan, Tokyo
- Origin
- 🇯🇵 Japan
- Category
- Energy › Power & utilities › Grids & transmission
- Parent ticker
- TSE: 9513
- Last verified
- · 1 sources
About J-POWER Transmission Network
J-POWER Transmission Network, the report subsidiary Dengen Kaihatsu Sohenden Network, owns the transmission and substation facilities used to wheel power for nine general transmission and distribution companies. The annual securities report lists it at 100.0 percent of voting rights and capital of 16,000 million yen.
Ownership timeline of J-POWER Transmission Network
Where J-POWER Transmission Network sits in J-POWER
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full J-POWER ownership tree →
See the full J-POWER brand portfolio (2) →
Other brands owned by J-POWER
J-POWER controls 2 brands on Brandtree, 2 of them in energy.
Also in energy
Other brands in grids & transmission, and who owns them
The 11 brands in grids & transmission on Brandtree belong to 9 owners. The largest is ESB, with 2.
| Brand | Owner | Owner based in |
|---|---|---|
| ESB Networks | ESB | 🇮🇪 Ireland |
| SSEN Distribution | SSE | 🇬🇧 United Kingdom |
| ISA | Ecopetrol | 🇨🇴 Colombia |
| ITC | Fortis | 🇨🇦 Canada |
| Hydro One Networks | Hydro One | 🇨🇦 Canada |
| Kansai Transmission and Distribution | Kansai Electric Power | 🇯🇵 Japan |
| Oncor | Sempra | 🇺🇸 United States |
| American Transmission Company | WEC Energy Group | 🇺🇸 United States |
About the owner: J-POWER
J-POWER is a publicly listed company headquartered in Tokyo, Japan. Brandtree records 2 brands under its control, and it is listed as TSE: 9513.
Electric Power Development, trading as J-POWER, is a Japanese power producer whose annual securities report for the year to 31 March 2026 counts 109 subsidiaries and 86 affiliates. The report says its group generates power mainly from hydro, thermal and wind plants, sells power procured on the wholesale market, and through a subsidiary wheels electricity for nine general transmission and distribution companies, all except Okinawa Electric Power. It also reports overseas generation.
🇯🇵 J-POWER Transmission Network and other Japanese brands
Brandtree records a controlling owner for 437 brands that began in Japan. 21 of them (5%) are now controlled by a company headquartered in another country; J-POWER Transmission Network is not one of them.
- Chubu Electric Power — Chubu Electric Power 🇯🇵
- Cosmo Oil Marketing — Cosmo Energy 🇯🇵
- Daigas Energy — Osaka Gas 🇯🇵
- JERA — JERA 🇯🇵
- Kansai Transmission and Distribution — Kansai Electric Power 🇯🇵
- TEPCO — TEPCO Holdings 🇯🇵
Frequently asked questions
Who is the parent company of J-POWER Transmission Network?
The parent company of J-POWER Transmission Network is J-POWER, a publicly listed company headquartered in Japan.
Is J-POWER Transmission Network Japanese?
Yes. J-POWER Transmission Network originated in Japan and its owner, J-POWER, is also headquartered in Japan.
Is J-POWER Transmission Network still owned by J-POWER?
Yes. As of 5 October 2026, J-POWER Transmission Network is still owned by J-POWER. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Annual Securities Report (Yuho) for the year ended 31 March 2026 - Electric Power Development — EDINET (Financial Services Agency of Japan), Annual report, published 24 June 2026; retrieved 5 October 2026.
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