Best Energy Tech Companies in Japan
The 127 best Energy Tech companies in Japan in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: JOLED.
Japan's Energy Tech funding map is clearer than it looks once you rank the 127 companies we track by disclosed equity and recent momentum. Total disclosed funding sits at $2.3B across that field, with no unicorns yet, but the gap between the pack and the leaders is already significant. PowerX has pulled in $91M, SkyDrive $117M, and Luup $88M, and those three alone tell you where capital is concentrating: electrified transport, grid-edge hardware, and next-generation EV platforms. The sector's growing at a CAGR of roughly 7.1%, driven by rising global energy demand and a hard push to digitize production processes that still run on paper-based records.
So what's the on-the-ground signal? Median install growth for energy apps hit +28% YoY across 138 tracked titles, which, honestly, I find more telling than any funding headline. Consumer-facing energy tools are moving. Hot themes right now are EV battery technology, solar electricity generation, and next-gen EV powertrains, all of which align with what clean energy technical assistance reports keep flagging as the hardest commercialization bottlenecks. Mitsubishi UFJ Capital and Global Brain are among the most active backers here. If you're mapping where Japan's energy transition money actually flows, this directory is where to start.
- prnewswire.com
Our analysis of 287 Energy Tech companies
$109.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Tech companies in Japan
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | JOLED Developer of OLED-based display panels including printed OLED, oxide TFT displays, and flexible displays | $1.4B | 72 mo ago | 590 | Yoshimasa Ishibashi CEO | — | — | 1,551 patents Flexible OLED display panels with barrier layers and foldable/rollable form factors | — |
| 2 | SkyDrive Developer of electric vertical takeoff and landing aircraft for urban mobility | $117M | 11 mo ago | — | Tomohiro Fukuzawa Founder & CEO | WordPressMySQLPHP+27 | Top 5M | 5 patents Foldable multi‑rotor UAVs with rotor‑folding mechanisms and onboard health monitoring | — |
| 3 | PowerX Manufacturer of stationary battery storage systems and related energy services | $91M | 15 mo ago | 47 | Masahiro Ito Founder & CEO | Cart FunctionalityContentfulTurbopack+23 | Top 5M | 41 patents Electric power generation and transmission systems for ships and land vehicles | 1 expansion |
| 4 | Luup App-based platform form electric kick scooters | $88M | 19 mo ago | 37 | Ryotaro Makita Chief Product Officer / Chief Operating Officer / Co-founder | WordPressMySQLPHP+22 | Top 500k | 4 patents Industrial operation assistance and decision-support user interface systems | — |
| 5 | Kyulux Provider of OLED lighting systems | $86M | 1 mo ago | 5 | Akira Minakuchi Co-Founder & CFO | WordPressApple iCloud MailGoogle Workspace+23 | Top 10M | 520 patents Organic light‑emitting diodes and related emissive materials for display and lighting | — |
| 6 | APB Manufacturer of lithium batteries | $74M | 65 mo ago | 20 | — | — | — | 170 patents Lithium‑ion battery electrode materials and manufacturing processes/equipment. | — |
| 7 | QD Laser Developer of nanotech-based quantum dots for energy generation | $50M | 86 mo ago | 58 | — | WordPressMySQLPHP+11 | Top 5M | 196 patents High‑resolution laser projection and ophthalmic imaging systems using semiconductor lasers | — |
| 8 | Lean Mobility Manufacturer of personal trikes | $49M | 8 mo ago | — | Akihiro Yanaka Founder & CEO | Node.jsVimeoYouTube+11 | Top 500k | — | — |
| 9 | Enax Lithium-ion battery manufacturers for industrial use | $41M | 189 mo ago | 90 | Masaki Saikusa CEO | NginxjQueryMicrosoft 365+2 | Top 10M | 68 patents Advanced secondary battery technologies for aerospace, automotive, and portable energy storage | — |
| 10 | EV Motors Japan Manufacturer of electric vehicles including buses, logistics vehicles, and trikes | $38M | 18 mo ago | 28 | Yuko Sasahara CEO | WordPressMySQLPHP+13 | Top 500k | — | — |
| 11 | Tsubame BHB Manufacturer of ammonia and its related products | $35M | 27 mo ago | — | Masahiro Watanabe Co-CEO | WordPressMySQLPHP+15 | Top 10M | 37 patents Ammonia synthesis catalysts and production system technologies for efficient ammonia manufacturing. | 1 launch · 1 award |
| 12 | Ene Coat Technologies Manufacturer and seller of perovskite solar cell | $34M | 15 mo ago | 24 | Takaya Kato Co-CEO & Director | WordPressMySQLPHP+8 | Top 5M | — | — |
| 13 | Terra Motors Manufacturer of multiple categories of electric vehicles | $28M | 35 mo ago | 200 | Toru Tokushige Founder | WordPressMySQLPHP+19 | Top 10M | — | — |
| 14 | GLM Developer of electric car and drivetrain systems | $21M | 132 mo ago | 3 | Hiroyasu Koma Founder | WordPressMySQLPHP+9 | Top 10M | — | — |
| 15 | Aerial Lab Industries Developer of mobility solutions including robotics, AI, and drone technologies | $21M | 78 mo ago | 11 | Shohei Komatsu CEO & CTO | — | — | — | — |
| 16 | I-Grid Provider of GX solutions, energy trading, and renewable energy platforms | $21M | 34 mo ago | 100 | Tomokazu Akita CEO | WordPressMySQLPHP+21 | Top 1M | 12 patents Quantum algorithm design and optimization for hybrid quantum‑classical machine learning | — |
| 17 | Panair Provider of cloud-based solutions for power distribution companies | $18M | 95 mo ago | — | Tatsuhiko Nagoshi Co-Founder & CEO | — | — | — | — |
| 18 | Skydisc Provider of digital transformation solution for manufacturing industries | $15M | 36 mo ago | 10 | — | WordPressMySQLPHP+23 | Top 10M | — | — |
| 19 | PLUGO Cloud-based EV charging solutions | $14M | 22 mo ago | 13 | Naoki Okawa Founder & CEO | WordPressMySQLPHP+20 | Top 5M | 4 patents Electric vehicle charging network management, reservation, and payment prediction platform | — |
| 20 | Digital Grid Provider of transmission and distribution management solutions | $12M | 78 mo ago | 47 | Rikiya Abe CEO | Apple iCloud MailGoogle WorkspaceNode.js+19 | Top 5M | — | — |
| 21 | Sensyn Robotics Provider of drone hub, related control software, and inspection solutions | $11M | 71 mo ago | 121 | Takuya Kitamura CEO | HubSpot CMS HubApple iCloud MailGoogle Workspace+15 | Top 10M | 35 patents Patents concentrated in computing, sensing & instrumentation | — |
| 22 | Glafit Manufacturer of street-legal electric motorcycles, electric scooters, and related accessories | $9M | 54 mo ago | 16 | Narumi Sadazo CEO | WordPressShopifyMySQL+29 | Top 1M | 5 patents Components and accessories for two‑wheeled motor vehicles, e.g., frames, pedals, mirrors, batteries. | — |
| 23 | ELIIY Power Lithium based battery systems and ESS provider | $7M | 168 mo ago | 312 | Hiroichi Yoshida CEO | RubyBootstrapRuby on Rails+18 | Top 5M | 227 patents Lithium‑ion battery electrode materials and advanced state‑of‑health/charging estimation systems | — |
| 24 | Miraikikai Developer of robots and laser sensors for various industrial applications | $6M | 93 mo ago | 24 | Tohru Miyake Founder & CEO | WordPressMySQLPHP+21 | Top 10M | 39 patents Autonomous robots for cleaning and maintaining solar panel installations. | — |
| 25 | SPACECOOL Manufacturer of optical film | $6M | 17 mo ago | 20 | — | WordPressMySQLPHP+22 | Top 5M | — | — |
| 26 | U-MAP Technology solutions provider for energy insulation | $5M | 42 mo ago | 5 | Kenji Nishitani CEO | — | — | 18 patents High‑thermal‑conductivity ceramic/resin composites for power‑module heat management | — |
| 27 | Tetra Aviation Developer of e-VTOL aircraft | $5M | 48 mo ago | 14 | Kei Nakai CEO | Cart FunctionalityStrikinglyNginx+16 | Top 50M | 6 patents Design and integration of aircraft rotor blade modules and airframe structures | — |
| 28 | Aster Manufacturer of electric motors for multiple categories of electric vehicles | $5M | 56 mo ago | 116 | Takenobu Hongo CEO | WixSentryBootstrap+10 | Top 10M | 96 patents Advanced coil and stator manufacturing for high-efficiency electric motors and related data processing | — |
| 29 | Girasol Energy Provider of AI and cloud-based monitoring solutions for photovoltaic plants | $5M | 13 mo ago | 8 | Li Min CEO | STUDIOFirebaseNode.js+11 | Top 50M | — | — |
| 30 | Tensor Energy AI-driven platform offering portfolio management solutions for renewable energy operators | $4M | 2 mo ago | 9 | Vincent Filter Founder | SentryApple iCloud MailMicrosoft 365+9 | Top 10M | — | — |
| 31 | LE System Redox flow battery developer | $4M | 103 mo ago | 37 | Nagayoshi Ho CEO | Apache HTTP ServerSwiperjQuery+2 | Top 10M | 79 patents Fluid control actuators, LED lighting modules, and toothbrush vibration mechanisms | — |
| 32 | Striemo Manufacturer of electric kick scooters | $3M | 18 mo ago | 6 | Yotaro Mori Co-Founder & CEO | STUDIOFirebaseNode.js+16 | Top 10M | 17 patents Stability and chassis design for three‑wheeled electric scooters and light vehicles | — |
| 33 | KG Motors Manufacturer of electric cars | $3M | 9 mo ago | — | Kusu Issei CEO | Cart FunctionalityWordPressBetterDocs+27 | Top 500k | — | — |
| 34 | I & C Cruise Offers customer acquisition services and among other businesses | $2M | 135 mo ago | 80 | Ryosuke Imai CEO & President | OpenSSLApache HTTP ServerAmazon Web Services+7 | Top 50M | — | — |
| 35 | Hydronext Developer of technology for purifying hydrogen from mixed gas states | $1M | 23 mo ago | 6 | — | — | — | 3 patents Hydrogen purification and separation technologies for producing high‑purity hydrogen gas. | — |
| 36 | Novars Provider of IoT based business consulting and services | $1M | 117 mo ago | — | Okabe Yoshihiro CEO | WordPressMySQLPHP+21 | Top 50M | 43 patents Battery management and wireless monitoring systems for portable power supply devices | — |
| 37 | RECEPTIONIST SaaS-driven visitor management and reception system for organizations | $1M | 99 mo ago | — | Mariko Hashimoto CEO | WordPressMySQLPHP+27 | Top 5M | — | 1 job opening · 1 partnership |
| 38 | Habitat Offers visitor management solutions | $881K | 53 mo ago | — | Kawasaki Wataru Co-Founder | — | — | — | — |
| 39 | AirKamuy VTOL aircraft developers | $702K | 13 mo ago | — | Takumi Yamaguchi Co-Founder & CEO | WordPress Block EditorWordPressApple iCloud Mail+20 | Top 5M | — | — |
| 40 | AC Biode Developer of chemical and electronic technologies for plastic waste and energy | $172K | 21 mo ago | 5 | Tadashi Kubo CEO | — | — | 4 patents Synthetic mineral synthesis processes for industrial and agricultural applications | — |
Top 12 Energy Tech companies in Japan
#1
Series B · Fukuoka, Fukuoka · founded 2015 · 5 employees$85.7Mraised▾
Provider of OLED lighting systems. It offers TADF OLED (Thermally Activated Delayed Fluorescence Organic Light Emitting Diode) technology for display and lighting. The company offers hyper fluorescence OLEDs, which combine TADF and fluorescence emitters to enable highly efficient emission.
- May 2026Series B—
- Sep 2023Series B$1.4M
- Feb 2021Series B$34.3M
- May 2019Series B$31.8M
#2
Series C · Shinjuku City, Tokyo · founded 2018$117.5Mraised▾
Developer of electric vertical takeoff and landing aircraft for urban mobility. The company focuses on creating quiet, lightweight, and low-emission aircraft suitable for use in urban environments. Its aircraft require no runway and allow vertical takeoff and landing in small spaces. The company is working toward receiving type certification for its aircraft.
- Jul 2025Series C$57.4M
- Aug 2024Series C—
- Jan 2024Series C—
- Oct 2023Grant (prize money)—
#3
Seed · Toyota, Aichi · founded 2022$49.4Mraised▾
Manufacturer of personal trikes. The company develops vehicles with features that include two-seater, lithium iron phosphate battery, rear wheel motor drive, and more.
- Oct 2025Seed$3M
- Oct 2024Seed$30.8M
- Feb 2024Seed$18.7M
#4
Series A · Chiyoda City, Tokyo · founded 2021 · 9 employees$3.6Mraised▾
AI-driven platform offering portfolio management solutions for renewable energy operators. It allows users to manage multiple distributed power plants, forecast solar & wind power generation, coordinate power trading, and more.
- Apr 2026Series A$6M
- Mar 2024Seed$3M
- Mar 2022Seed$605.6K
#5
Public · Minato, Tokyo · founded 2021 · 47 employees$91.1Mraised▾
Manufacturer of stationary battery storage systems and related energy services. The company provides large-scale stationary battery solutions and related services. These offerings include battery storage systems, energy services, and charging solutions. The company is also involved in energy-related projects. It develops and deploys grid-connected energy storage solutions for power companies, real estate developers, and logistics firms.
- Mar 2025Series C$21.4M
- Sep 2024Series C$17.3M
- Jan 2024Conventional Debt$64.1M
- Jul 2023Series B$13.3M
#6
Series C · Shibuya, Tokyo · founded 2018 · 37 employees$87.9Mraised▾
App-based platform for electric kick scooters. Through the app, users can find and book electric kick scooters. Also, they can navigate to the nearby bike stations to get the scooters. Users can unlock the scooters by scanning the QR code. It offers station-based service users have to leave the scooter at the nearby docks at the end of the ride.
- Oct 2024Conventional Debt$20M
- Apr 2023Conventional Debt$5.2M
- Apr 2023Series C$28.3M
- Apr 2022Series B—
#7
Series C · Kyoto, Kyoto · founded 2018 · 24 employees$34.2Mraised▾
Ene Court Technologies is engaged in the development of thin-film perovskite solar cell (PSC) and related materials. The product is claimed to have efficiency in generating power under any conditions like high illuminance, without intermediate light intensity and low light intensity. The product is in the development stage.
- Feb 2025Series C—
- Jul 2024Series C$34.2M
- May 2022Series B—
- Apr 2022Seed—
#8
Series D · Kitakyushu, Fukuoka · founded 2019 · 28 employees$37.9Mraised▾
Manufacturer of electric vehicles including buses, logistics vehicles, and trikes. The company provides electric buses featuring high-capacity battery systems for extended range. Also offered are electric logistics vehicles suitable for various applications, including passenger transport. The company’s electric trikes are designed for stability and ease of operation. The business also supplies electric slow mobility vehicles.
- Dec 2024Series D—
- Mar 2024Series D$10.8M
- Mar 2023Series C$27.1M
#9
Series A · Hiroshima, Hiroshima · founded 2022$2.5Mraised▾
Manufacturer of electric cars. The company develops vehicles with features like autonomous driving system, single seater, and more.
- Aug 2025Conventional Debt—
- Aug 2025Series A$5.3M
- Mar 2024Seed$2.5M
#10
Series B · Bunkyo, Tokyo · founded 2017 · 8 employees$4.6Mraised▾
Provider of AI and cloud-based monitoring solutions for photovoltaic plants. It provides a PPLC sensor that collects data from panels and a PPLC gateway that communicates with the PPLC cloud. The PPLC cloud automatically located abnormal behavior using an AI engine.
- Apr 2025Series B$9M
- Mar 2024Series B—
- Aug 2021Series A$4.6M
#11
Late Stage · Tokyo, Tokyo · founded 2015 · 590 employees$1.4Braised▾
Developer of OLED-based display panels including printed OLED, oxide TFT displays, and flexible displays. Offerings include display panels developed using technologies such as printed OLED, oxide TFT technology (TAOS), and flexible displays. The displays are claimed to have multiple features such as they are foldable, unbreakable, see-through, flexible, transparent, energy efficient, have better image quality and self-luminance, etc. Target markets include smartphones, wearable devices, medical equipment monitors, laptops, computers, etc.
- Jun 2020PE$280.6M
- Apr 2019PE$228.2M
- Aug 2018PE$425.6M
- Dec 2017PE$441.2M
#12
Series A · Minato City, Tokyo · founded 2021 · 20 employees$5.7Mraised▾
Manufacturer of optical film
- Jan 2025Series A$5.7M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Grid Energy Storage is moving in Japan
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 945 Japan-affiliated papers.
- Korea University70
- The University of Tokyo64
- National Institute of Advanced Industrial Science and Technology55
- National Institute for Materials Science52
- Kyoto University51
- Electrode2→37
- Battery (electricity)9→40
- Electrochemistry6→34
- Anode4→28
- Electrolyte12→36
- Renewable energy9→107
- Battery (electricity)7→94
- Photovoltaic system3→68
- Power (physics)1→48
- Electrochemistry2→39
- Battery (electricity)1→20
- Renewable energy1→16
- Electrolyte2→14
- Nanotechnology4→12
- Electrochemistry1→7
Where energy storage is researched across Japan
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing energy storage patents in Japan
Japan energy storage patent filing is accelerating — 2,762 filings from 502 assignees (2016–2025), led by GS Yuasa INT, Sumitomo Electric Industries, Panasonic IP MAN; annual filings 196→248.
- GS Yuasa INT1009
- Sumitomo Electric Industries907
- Panasonic IP MAN122
- Honda121
- Showa Denko KK121
- KOBE Steel92
- Toyota55
- Toshiba KK55
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.