Best Energy Tech Companies in South Korea
The 250 best Energy Tech companies in South Korea in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: SK On.
Energy Tech in South Korea has real money behind it. This directory ranks 250 companies by disclosed equity funding and recent funding momentum, and the $2.4B total across those names tells you the sector's moved well past early-stage experimentation. One company alone accounts for most of that capital: Sk On has pulled in $1.7B, which means you're looking at a funding pool where one filer commands roughly 71% of the disclosed total. Softberry's $71M and Poen's $34M are the next tier down, and the gap between them and Sk On is stark. No unicorns yet, but the concentration of capital in battery technology is hard to miss, particularly as ev battery technology and next-generation EV platforms dominate the sector's conversation heading into the back half of the decade.
The broader market is growing at a CAGR of roughly 7.1%, driven by rising global energy demand and the operational shift away from paper-based production records toward digital management systems. So what does that mean for the companies ranked below Sk On? It means the runway is real. Mobile engagement reinforces it: across 138 energy and energy production apps, median install growth is running at roughly 28% year-over-year, which I'd argue is as clean a demand signal as any funding announcement. Investors like Korea Investment Holdings and LB Investment are clearly watching. The active investor list here is deep, and that matters when you're sizing up which companies have the institutional backing to scale.
- 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 South Korea
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | 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 | — | 1 launch |
| 2 | SK nexilis Provider of copper battery foils | $84M | 53 mo ago | — | Kim Young-tae CEO | PHPApache HTTP ServerSwiper+3 | 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 | 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 | 26 mo ago | 42 | Yong Park CEO | GSAPVue.jsAmazon Web Services+6 | 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 | — | — |
| 6 | AutoCrypt Provider of cybersecurity solutions for automotive and mobility applications | $40M | 48 mo ago | 300 | SangGyoo Sim Co-Founder & CTO | WordPressApple iCloud MailMicrosoft 365+32 | 84 patents Automotive cybersecurity: CAN intrusion detection, V2X tolling, lidar anomaly, real-time messaging | 1 launch · 1 partnership |
| 7 | POEN Manufacturer of batteries | $34M | 23 mo ago | 15 | SungJin Choi CEO | GnuboardMySQLPHP+13 | 10 patents EV battery management systems with wireless pack control and health/remanufacturing evaluation | — |
| 8 | Nesscap Developer of ultracapacitors for energy storage solutions | $27M | 115 mo ago | 51 | — | — | 59 patents Advanced supercapacitor technologies for high‑power electrochemical energy storage | — |
| 9 | SWING App-based platform offering electric-kick scooter rental services | $25M | 52 mo ago | 85 | San Kim Founder & CEO | TistorySentrySvelte+7 | 3 patents Control systems for electric kickboards and household cleaning device technologies. | — |
| 10 | Ecube Labs Developer of Sensors, smart trash bins and analytics software for waste management | $23M | 35 mo ago | 37 | Sean Gwon Co-Founder & CEO | WordPressSentryMySQL+21 | 46 patents Autonomous waste collection vehicles and AI-driven garbage sorting/management systems | — |
| 11 | NanoCamp Sulfide-based solid electrolytes | $20M | 30 mo ago | 6 | — | — | — | — |
| 12 | H2 Provider of energy storage solutions | $18M | 16 mo ago | 70 | Shin Han Founder & CEO | — | — | 1 expansion |
| 13 | Encored Technologies AI and cloud-driven platform offering demand response management solutions | $17M | 126 mo ago | 49 | John Choe Founder & CEO | Node.jsTailwind CSSReact+9 | 26 patents Predictive load management for EV charging stations and cloud‑based microgrid optimization. | — |
| 14 | EVAR Manufacturer of mobile and stationary electric vehicle chargers | $16M | 35 mo ago | 60 | Lee Hun CEO | WixSentryBootstrap+10 | 72 patents Patents concentrated in transport & manufacturing processes | — |
| 15 | Xingxing Mobility Operator of shared electric mobility devices for urban transportation needs | $16M | 41 mo ago | 74 | — | NotionOopyNode.js+10 | — | — |
| 16 | VINSSEN Developer of electric boats | $15M | 21 mo ago | 34 | Chil Lee CEO | — | 39 patents Marine propulsion and onboard hydrogen fuel‑cell power systems with ammonia reforming and water management | — |
| 17 | GRINERGY Provider of LTO battery technology for renewable energy solutions | $12M | 14 mo ago | 49 | Scott Bang Co-Founder & CEO | Node.jsTailwind CSSReact+9 | 38 patents Patents concentrated in electrical & electronics | — |
| 18 | TerraLIX Manufacturer of air-cooled fuel cell stacks for mobile power applications | $12M | 49 mo ago | — | Tae Kim CEO | — | 46 patents Air management, sealing, and safety components for hydrogen fuel cell systems | — |
| 19 | Leo Motors Cartridge batteries for electric vehicles | $11M | 120 mo ago | 73 | — | — | 97 patents Patents concentrated in electrical & electronics | — |
| 20 | PLANA Manufacturer of hybrid electric VTOL aircraft | $8M | 44 mo ago | — | Braden Kim Chief Executive Officer At Plana | WordPressMySQLPHP+18 | 10 patents Aircraft thermal management and cooling systems integration for structures and batteries | 3 job openings |
| 21 | H energy Provider of platform for energy sharing | $7M | 45 mo ago | 14 | Ilhan Ham Founder & CEO | Apple iCloud MailFirebaseVue.js+9 | 1,565 patents Advanced lithium‑ion battery cathode materials, electrode current collectors, fire‑barrier boards, marine mooring systems | — |
| 22 | Ready Robust Machine Smart energy recovery system | $7M | 21 mo ago | 6 | — | GnuboardMySQLPHP+11 | — | — |
| 23 | JR Energy Solution Manufacturing of electrodes | $7M | 22 mo ago | — | Ha Seung-bong Co-Founder & CSO | — | 44,863 patents Battery pack designs, safety mechanisms, and power management for energy storage systems | — |
| 24 | Pluglink Operator of electric vehicle charging stations and related management systems | $6M | 43 mo ago | 18 | Andrew Kang CEO | WordPressMySQLPHP+16 | 6 patents EV charging management using Bluetooth authentication, local certification, and neural‑network load balancing | — |
| 25 | 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 | — | — |
| 26 | FCMT Provider of hydrogen renewable energy services | $5M | 47 mo ago | 24 | Paul Mansour CEO | — | 2 patents Advanced PEM fuel‑cell membrane electrode assemblies and multi‑stage electrode slurry processing | — |
| 27 | Korea Spatial Data Offers an AI-integrated digital twins for managing physical spaces | $3M | 30 mo ago | 72 | Hyunwoo Kim Co-Founder & CEO | — | — | — |
| 28 | INGINE Technology solutions provider for energy harvesting from the wave | $3M | 61 mo ago | 26 | Yong Jun Sung Founder & CEO | — | 166 patents Marine wave energy conversion systems and offshore floating platforms | — |
| 29 | 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 | 1,565 patents Advanced lithium‑ion battery cathode materials, fabrication processes, and safety components | — |
| 30 | CnerG Online PPA marketplace for enterprises | $2M | 28 mo ago | — | Yong Jin Founder & CEO | Node.jsMUIReact+18 | — | — |
| 31 | POSCORE Manufacturer of motors for electric vehicles | $747K | 19 mo ago | — | Hyungjin Kim CEO | — | 10 patents Manufacturing soft magnetic powder cores and lamination processes for inductors/transformers | — |
| 32 | Geo-Line Mobile charging-payment solution for electric vehicles | $254K | 125 mo ago | — | Sunggyoo Geo CEO | — | 21 patents Secure, fast EV and mobile device charging systems with authentication and safety shielding | — |
Top 12 Energy 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 C · Jeollanam-do · founded 2017 · 34 employees$15.4Mraised▾
Developer of electric boats. The company develops electric boats with features like 8.2M long leisure boat, hydrogen fuel cell, ship integrated control system, 5 seater capacity, etc. It also develops power train systems and energy storage systems for ships.
- Sep 2024Series C—
- Jul 2021Series B$12.8M
- Sep 2020Series A$2.5M
- Dec 2019Seed—
#6
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
#7
Series A · Gimhae si, South Gyeongsang Province · founded 2021 · 6 employees$6.9Mraised▾
Smart energy recovery system. The smart energy recovery system READiX is a product that recovers the energy of the boom, where the most energy is wasted in the operation of the excavator, and reuses it as a power source. It also reduces carbon emissions by reducing the amount of diesel used during the same work.
- Aug 2024Series A$5.6M
- Oct 2022Seed$1.4M
#8
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
#9
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
#10
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
#11
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—
#12
Seed · Pohang, Gyeongsangbuk-do · founded 2023$747.4Kraised▾
Manufacturer of motors for electric vehicles. The company develops non-permanent magnet synchronous motor, magnetic powder, and more.
- Nov 2024Seed$640.1K
- Jan 2024Seed$747.4K
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 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 Chemical330
- 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.