Best Energy Storage Tech Companies in South Korea
The 128 best Energy Storage Tech companies in South Korea in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: SK On.
South Korea's Energy Storage Tech field is more concentrated than it looks. Of the 128 companies we track here, one name accounts for the bulk of the capital: SK On has disclosed $1.7B in funding, dwarfing every other filer in the directory. POEN sits at $34M, Softberry at $71M, and the rest cluster well below that. So the question isn't whether South Korea has an energy storage story. It's whether you can find the signal beneath SK On's gravitational pull.
The broader market context sharpens that point. Global energy storage is forecast to compound at 41.0% CAGR, driven by high electricity prices, rising grid demand charges, and declining project costs. Mobile engagement confirms the momentum: median install growth across energy apps is running at roughly 28% year-over-year. Hot themes in coverage right now include EV battery technology and next-generation EV platforms, areas where South Korean manufacturers already carry real manufacturing weight. A recent analysis on battery storage enabling renewables underscores how quickly deployment economics are shifting. The $2.2B in total disclosed funding across this directory is real earned capital, and the most active backers, including L&S Venture Capital and Shinhan Venture Investment, are watching where the next tier breaks out.
- American Clean Power Association’s (ACP) Q4 2025 Clean Power Quarterly Market Report
Our analysis of 50 Energy Storage Tech companies
$13.7b in tracked funding; 88% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Storage Tech companies in South Korea
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Stage | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SK On Provider of energy and chemical products, including batteries and lubricants | $1.7B | 35 mo ago | 2,889 | Jee Dong Seob CEO | Windows ServerMicrosoft ASP.NETIIS+2 | Series E | — | 1 launch |
| 2 | SK nexilis Provider of copper battery foils | $84M | 53 mo ago | — | Kim Young-tae CEO | PHPApache HTTP ServerSwiper+3 | Series C | 303 patents Advanced copper foil and current collector technologies for lithium‑ion battery electrodes. | — |
| 3 | Standard Energy Developer of redox flow batteries | $77M | 53 mo ago | 140 | Bu Kim CEO | GnuboardApple iCloud MailMicrosoft 365+12 | Series D | 301 patents Advanced rechargeable battery technologies, especially redox flow and modular battery management systems. | — |
| 4 | Softberry App-based platform offering charge point locater services | $71M | 27 mo ago | 42 | Yong Park CEO | GSAPVue.jsAmazon Web Services+6 | Series A | 15 patents AI-driven EV charging station data aggregation, user‑personalized info, and community services | — |
| 5 | Everon Operators of electric vehicle charging stations | $47M | 35 mo ago | 59 | — | Naver MapsRadix UITailwind CSS+8 | Series B | — | — |
| 6 | POEN Manufacturer of batteries | $34M | 23 mo ago | 15 | SungJin Choi CEO | GnuboardMySQLPHP+13 | Series B | 10 patents EV battery management systems with wireless pack control and health/remanufacturing evaluation | — |
| 7 | Nesscap Developer of ultracapacitors for energy storage solutions | $27M | 115 mo ago | 51 | — | — | Acquired | 59 patents Advanced supercapacitor technologies for high‑power electrochemical energy storage | — |
| 8 | NanoCamp Sulfide-based solid electrolytes | $20M | 30 mo ago | 6 | — | — | Series B | — | — |
| 9 | H2 Provider of energy storage solutions | $18M | 16 mo ago | 70 | Shin Han Founder & CEO | — | Series B | — | — |
| 10 | EVAR Manufacturer of mobile and stationary electric vehicle chargers | $16M | 35 mo ago | 60 | Lee Hun CEO | WixSentryBootstrap+10 | Series B | 72 patents Patents concentrated in transport & manufacturing processes | — |
| 11 | GRINERGY Provider of LTO battery technology for renewable energy solutions | $12M | 14 mo ago | 49 | Scott Bang Co-Founder & CEO | Node.jsTailwind CSSReact+9 | Series A | 38 patents Patents concentrated in electrical & electronics | — |
| 12 | TerraLIX Manufacturer of air-cooled fuel cell stacks for mobile power applications | $12M | 49 mo ago | — | Tae Kim CEO | — | Series B | 46 patents Air management, sealing, and safety components for hydrogen fuel cell systems | — |
| 13 | Leo Motors Cartridge batteries for electric vehicles | $11M | 120 mo ago | 73 | — | — | Deadpooled | 97 patents Patents concentrated in electrical & electronics | — |
| 14 | JR Energy Solution Manufacturing of electrodes | $7M | 22 mo ago | — | Ha Seung-bong Co-Founder & CSO | — | Series A | 44,863 patents Battery pack designs, safety mechanisms, and power management for energy storage systems | — |
| 15 | Pluglink Operator of electric vehicle charging stations and related management systems | $6M | 44 mo ago | 18 | Andrew Kang CEO | WordPressMySQLPHP+16 | Series A | 6 patents EV charging management using Bluetooth authentication, local certification, and neural‑network load balancing | — |
| 16 | Everyone's Charge Provider of an app-based platform to EV charging stations | $5M | 23 mo ago | 14 | Ye-chan Yoon CEO | ImwebFroala EditorYouTube+29 | Series A | — | — |
| 17 | FCMT Provider of hydrogen renewable energy services | $5M | 47 mo ago | 24 | Paul Mansour CEO | — | Series A | 2 patents Advanced PEM fuel‑cell membrane electrode assemblies and multi‑stage electrode slurry processing | — |
| 18 | INGINE Technology solutions provider for energy harvesting from the wave | $3M | 61 mo ago | 26 | Yong Jun Sung Founder & CEO | — | Seed | 166 patents Marine wave energy conversion systems and offshore floating platforms | — |
| 19 | LG Energy Solutions Manufacturer of advanced batteries for automotive, mobility, IT, and ESS applications | $3M | 24 mo ago | 11,080 | Dong-Myung Kim CEO | WordPress Block EditorWordPressApple iCloud Mail+20 | Public | 1,565 patents Advanced lithium‑ion battery cathode materials, fabrication processes, and safety components | — |
| 20 | Geo-Line Mobile charging-payment solution for electric vehicles | $254K | 125 mo ago | — | Sunggyoo Geo CEO | — | Seed | 21 patents Secure, fast EV and mobile device charging systems with authentication and safety shielding | — |
| 21 | APgreen Developer of modular clean hydrogen generators utilizing non-thermal plasma technology | — | 1 mo ago | 8 | Taeyoon Park Chief Executive Officer | — | Funding Raised | 10 patents Low‑emission hydrogen generation and carbon capture/ utilization technologies | — |
| 22 | SILI Energy Developer of anode materials for lithium-ion batteries | — | 10 mo ago | — | David Jeong Founder & CEO | — | Seed | — | — |
| 23 | Eco Pro Materials Manufacturer of lithium-ion batteries and anode materials | — | 12 mo ago | — | Kim Hoon CEO | PHPCodeIgniterApache HTTP Server+6 | Public | — | — |
| 24 | Chaevi Provider of end-to-end electric vehicle charging solutions | — | 17 mo ago | 313 | Choi Young-Hoon Co-CEO | PHPGSAPSwiper+10 | Public | 13 patents Advanced EV charging hardware, safety monitoring, and grid‑integrated energy storage solutions | 1 launch |
| 25 | SASUNG Manufacturer of photovoltaic structural hybrid battery systems | — | 20 mo ago | — | Mi-Young Park CEO | — | Seed | — | — |
| 26 | Daejoo Manufacturer of electronic materials for automotive industry | — | 60 mo ago | 299 | — | Apache HTTP ServerNaver AnalyticsOpen Graph | Public | 13 patents Patents concentrated in construction | — |
| 27 | Enertech International Batteries and battery components | — | 63 mo ago | 8 | — | PHPYouTubeGoogle Font API+5 | Funding Raised | 71 patents Power electronics and quality: shock‑wave cleaning, transformer earthquake protection, hybrid filters, battery management | — |
| 28 | FCI Developer of fuel cell products | — | 63 mo ago | — | Lee Won CEO | — | Seed | 406 patents Reversible solid oxide fuel/electrolyzer systems for power and green‑ammonia production | — |
| 29 | K Watercraft Provider of hydrogen power generation system | — | 68 mo ago | — | Soonchul Kwon CEO | GnuboardMySQLPHP+12 | Funding Raised | — | — |
| 30 | PMGROW Provider of electric vehicle battery pack solutions, subscription, care, and data | — | 84 mo ago | — | Jae Park CEO | — | Series A | 85 patents EV battery safety monitoring, management, and reusable energy storage system technologies. | — |
| 31 | BlueH2 Hydrogen-based business that specializes in liquefaction, storage, transportation, and charging | — | 95 mo ago | — | Jeong Yeon seop CEO | — | Deadpooled | — | — |
| 32 | MetaVista Corporation dedicated to liquefaction, storage, transportation, and hydrogen charging | — | 95 mo ago | — | Jong Baik Founder & CEO | — | Deadpooled | 8 patents Patents concentrated in mechanical & energy engineering | — |
| 33 | CIS Manufacturer of lithium batteries | — | 127 mo ago | 62 | Su-ha Kim CEO | WordPressMySQLPHP+12 | Public | 72 patents Manufacturing processes for solid‑state lithium batteries, focusing on dry electrode coating and solid electrolyte synthesis. | — |
Top 12 Energy Storage Tech companies in South Korea
#1
Series E · Seoul, Seoul · founded 2021 · 2889 employees$1.7Braised▾
Provider of energy and chemical products, including batteries and lubricants. The organization focuses on battery business, alongside exploration and production. It offers a range of products, including petrochemicals, plastics, and performance materials. The business is structured around several core divisions, each specializing in different aspects of the energy, chemical, and advanced materials sectors.
- Jul 2023Series E$100M
- Jun 2023Series E$400M
- May 2023Series E$944M
- Mar 2023Series D$289.3M
#2
Series A · Seoul, Seoul · founded 2017 · 49 employees$12.1Mraised▾
Provider of LTO battery technology for renewable energy solutions. It offers lithium titanate batteries for power source management. It also offers to build and operate large-scale renewable energy plants and develop battery technologies.
- Apr 2025Series A$1.5M
- Nov 2021Series A$8.4M
- Seed$3.7M
#3
Series B · Daejeon, Daejeon · founded 2010 · 70 employees$18Mraised▾
Provider of energy storage solutions. It is an energy storage solution developer that manufactures vanadium redox flow battery storage systems based on its proprietary technology. It finds application in setting up microgrids, re integration,telecom towers,utility scale energy storage and other residential and commercial behind the meter use.
- Jan 2025Series B$16M
- Jan 2023Series B$18M
#4
Series B · Uiwang si, Gyeonggi do · founded 2019 · 15 employees$33.7Mraised▾
Manufacturer of batteries. It reuses discarded and used battery for manaufacturing new ones. It works on areas such as battery remanufacturing, secondary battery reuse, residual value assessment, and more.
- Jul 2024Series B$28M
- 2021Series A—
- 2020Seed—
#5
Series A · Seoul, Seoul · founded 2016 · 42 employees$70.6Mraised▾
App-based platform offering charge point locater services. The company offers mobile application EV infra which provides information on electric vehicle charging points, Soodal offers information on hydrogen vehicle charging stations. Also, it offers in-app payments for charging. The mobile application is available for Android and iOS platforms.
- Mar 2024Series A$3.6M
- Jan 2022Series A$67M
#6
Series A · Eumseong gun, Chungcheongbuk Do · founded 2022$6.5Mraised▾
Manufacturing of electrodes. It provides technology solutions for producing electrodes for batteries. It also provides software and hardware solution for the battery manufacturing process.
- Jul 2024Series A$6.5M
#7
Series A · Seoul, Seoul · founded 2021 · 14 employees$4.8Mraised▾
Provider of an app-based platform to EV charging stations. It users the users to check the nearest charging station in real time by choosing the charging type and operating organization. The platform offers other features like on demand charging solutions, integrated payment, vehicle management, community platform, etc. Mobile applications are available for android and iOS users.
- Jul 2024Series A$2.2M
- 2022Seed$2.4M
#8
Series B · Seoul, Seoul · founded 2012 · 59 employees$46.9Mraised▾
Operators of electric vehicle charging stations. The company offers electric vehicle charging solutions for individuals and businesses. It offers hardware and software-enabled solution it offers plug-in charging devices and offers mobile applications for users to find charge stations in the vicinity. The mobile application is available for Android and iOS platforms.
- Jul 2023Series B$38.6M
- Jan 2022Series A$8.3M
#9
Series B · Gwangmyeong, Gyeonggi-do · founded 2022 · 6 employees$20.1Mraised▾
Sulfide-based solid electrolytes. It specializes in developing sulfide electrolyte with good stability.
- Nov 2023Series B—
- 2023Series A—
#10
Series D · Yuseong District, Hoseo · founded 2013 · 140 employees$76.7Mraised▾
Standard Energy specializes in developing redox flow batteries. The batteries are equipped with electrolyte circulation technology and do not consist of a conventional pump system. Also, the batteries are made with thin composite materials with a cell stacking technology to prevent the systems from energy loss.
- Jan 2022Series D$54.2M
- Apr 2021Series C$8.9M
#11
Series C · Seoul, Seoul · founded 2020$84Mraised▾
Provider of copper battery foils. It provides material for the cathode of lithium-ion batteries. It provides thin, long, and wide, battery copper foils enabling batteries to have higher capacity, lighter weight, lower costs, and improve productivity.
- Dec 2021Series C$84M
#12
Series B · Seongnam-si, Gyeonggi-do · founded 2018 · 60 employees$16Mraised▾
Manufacturer of mobile and stationary electric vehicle chargers. The company designs and produces charging solutions for electric vehicles, offering both portable and fixed charging units. These chargers are designed for ease of use and reliability, supporting the growing demand for convenient electric vehicle charging infrastructure. The focus is on providing high-quality, efficient charging technology.
- Jul 2023Series B$16M
- Oct 2019Seed—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Storage 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 South Korea
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 1,809 South Korea-affiliated papers.
- Ministry of Education193
- Hanyang University141
- Yeungnam University115
- Korea Advanced Institute of Science and Technology104
- Sungkyunkwan University101
- Electrolyte12→140
- Electrochemistry11→136
- Anode7→129
- Supercapacitor19→139
- Electrode14→124
- Supercapacitor12→133
- Electrochemistry10→113
- Battery (electricity)9→101
- Electrolyte5→88
- Cathode3→84
- Electrolyte5→48
- Anode3→40
- Battery (electricity)6→42
- Cathode1→37
- Electrochemistry3→34
Where energy storage is researched across South Korea
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 South Korea
South Korea energy storage patent filing is accelerating — 4,360 filings from 1,226 assignees (2016–2025), led by LG Energy Solution, Samsung, LG Chemical; annual filings 357→650.
- LG Energy Solution823
- Samsung719
- LG Chemical329
- Lotte Chemical184
- Korea Electric Power183
- LG Electronics154
- LSIS134
- LS Mtron113
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.