Best Sustainability Tech Companies in South Korea
The 246 best Sustainability Tech companies in South Korea in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Cellid.
Tracking the best Sustainability Tech companies in South Korea by disclosed equity funding, this directory cuts through 246 tracked companies to show you where capital is actually landing. Total disclosed funding sits at $2.7B across the sector, though that number carries an asterisk: Cellid alone accounts for the bulk of it, with $2.4B raised, leaving the rest of the field working in the tens of millions. LDC at $42M and Poen at $34M are the next credible anchors. No unicorns yet, which tells you something about where South Korea's green tech ecosystem sits on the maturity curve.
The macro tailwind is real. The global Sustainability Tech market was valued at roughly $16.2B in 2022 and MarketsandMarkets projects it reaching $122.7B by 2032, a 23.8% CAGR that few sectors can match right now. Hot themes this quarter are clustering around EV battery technology, next-generation EV platforms and drive system innovations, and I'd watch that space closely given Korea's existing manufacturing depth. The sector's structural drag is a familiar one: fragmented green tech regulation slows commercial deployment even as demand accelerates. Eco-friendly innovation momentum is building globally, and early-stage climate startups are pulling in fresh seed rounds that signal the next funding wave is already forming.
- ResearchAndMarkets.com
Our analysis of 293 Sustainability Tech companies
$38.4b in tracked funding; 83% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Sustainability Tech companies in South Korea
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Cellid Developer of personalized vaccines to treat cancer and infectious diseases 32Patents top 32%Funding top 35%Innovation top 40%Moat top 45% All 8 signals ▾Patentstop 32% Fundingtop 35% Innovationtop 40% Moattop 45% Marketbottom 48% Globalbottom 35% Fin. healthbottom 35% Techbottom 22% Patents: 32 patents matched (strict assignee match) · 26 filings since 2022 vs 4 in 2017-21 Funding: Raised $2.4B across 1 rounds · 1 rounds over 12 yrs (0.1/yr) rank vs industry peers · Fliar Intelligence Index 32/100 | $2.4B | 120 mo ago | 68 | 2014 | — | PHPNginxNaver Analytics+5 | 32 patents Patents concentrated in chemistry & materials | — |
| 2 | LDC Provider of tyre recycling technology | $42M | 24 mo ago | 17 | 2017 | Yong Hwang Founder & CEO | — | — | — |
| 3 | POEN Manufacturer of batteries | $34M | 23 mo ago | 15 | 2019 | SungJin Choi CEO | GnuboardMySQLPHP+13 | 10 patents EV battery management systems with wireless pack control and health/remanufacturing evaluation | — |
| 4 | Lemonex Developer of drug delivery technology and biosensor technology | $27M | 61 mo ago | 9 | 2013 | Dal-Hee Min Co-Founder & CTO | — | 181 patents Nanocarrier-based drug and nucleic‑acid delivery systems for antiviral and cancer therapies | — |
| 5 | Ecube Labs Developer of Sensors, smart trash bins and analytics software for waste management | $23M | 35 mo ago | 37 | 2011 | Sean Gwon Co-Founder & CEO | WordPressSentryMySQL+21 | 46 patents Autonomous waste collection vehicles and AI-driven garbage sorting/management systems | — |
| 6 | Pharmcadd Provider of CAAD based drug discovery platform | $22M | 62 mo ago | 35 | 2019 | Woo Wook Founder | — | 21 patents AI-based protein structure prediction and piperidine-derived drug discovery | — |
| 7 | Superbin Developer of resource circulation systems that convert waste into reusable materials | $17M | 69 mo ago | 126 | 2015 | Kim Bin CEO | Node.jsEnvoyReact+9 | 24 patents Automated waste collection and sorting systems integrating AI object detection with door/compression mechanisms. | — |
| 8 | Encored Technologies AI and cloud-driven platform offering demand response management solutions | $17M | 126 mo ago | 49 | 2013 | John Choe Founder & CEO | Node.jsTailwind CSSReact+9 | 26 patents Predictive load management for EV charging stations and cloud‑based microgrid optimization. | — |
| 9 | Microbiotics Developer of small molecule therapeutics for infectious diseases 32Funding top 39%Talent bottom 49%Market bottom 44%Global bottom 29% All 4 signals ▾Fundingtop 39% Talentbottom 49% Marketbottom 44% Globalbottom 29% Funding: Raised $14.3M across 1 rounds · 1 rounds over 2 yrs (0.5/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 32/100 | $14M | 9 mo ago | 29 | 2016 | Yong Dong- eun CEO | — | — | — |
| 10 | Connext Provider of therapeutic solution for treating orphan diseases 22Funding top 36%Moat top 38%Patents top 49%Innovation bottom 45% All 8 signals ▾Fundingtop 36% Moattop 38% Patentstop 49% Innovationbottom 45% Talentbottom 45% Globalbottom 31% Marketbottom 29% Techbottom 29% Funding: Raised $9.9M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Moat: Editorial + unicorn rating 4/10 · IP moat: 9 patents rank vs industry peers · Fliar Intelligence Index 22/100 | $10M | 3 mo ago | 23 | 2017 | Woo-Jong Lee CEO & Owner | GnuboardMySQLPHP+15 | 9 patents Stabilized collagenase formulations for biotech and pharmaceutical enzyme applications | — |
| 11 | Eubiologics Company providing customized services for development and manufacturing biologics from both mammalian cell… | $8M | 98 mo ago | 314 | 2012 | Yeong Ok Baik CEO | — | 34 patents CRM197 carrier protein production and viral subunit vaccine formulations for infectious diseases | — |
| 12 | H energy Provider of platform for energy sharing | $7M | 45 mo ago | 14 | 2018 | 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 | — |
| 13 | Ready Robust Machine Smart energy recovery system | $7M | 21 mo ago | 6 | 2021 | — | GnuboardMySQLPHP+11 | — | — |
| 14 | BioApplications Developer of plant-based vaccines for infectious diseases | $4M | 46 mo ago | — | 2011 | Eun-Ju Sohn CEO | — | 153 patents Plant-based recombinant vaccine and therapeutic protein production for animal and human diseases | — |
| 15 | KhanFilter Provider of air purification equipment and systems | $4M | 34 mo ago | — | 2015 | Daegon Han Founder & CEO | — | 22 patents Advanced self‑cleaning air filtration and deodorization systems for indoor environments | — |
| 16 | Korea Spatial Data Offers an AI-integrated digital twins for managing physical spaces | $3M | 30 mo ago | 72 | 2018 | Hyunwoo Kim Co-Founder & CEO | — | — | — |
| 17 | INGINE Technology solutions provider for energy harvesting from the wave | $3M | 61 mo ago | 26 | 2011 | Yong Jun Sung Founder & CEO | — | 166 patents Marine wave energy conversion systems and offshore floating platforms | — |
| 18 | aweXome Ray Manufacturer of X-ray generators using carbon nanotube fiber for air purification | $2M | 83 mo ago | 7 | 2018 | Gihm Hoon Founder & CEO | — | 104 patents Carbon nanomaterial processes for semiconductor pellicles and lithium‑metal battery components | — |
| 19 | Hooxi Partners Provider of carbon credit solutions and SaaS-based carbon accounting management software | $2M | 26 mo ago | — | 2021 | Lee Haeng-Yeol Co-CEO | ImwebSentryFroala Editor+23 | — | — |
| 20 | CnerG Online PPA marketplace for enterprises | $2M | 28 mo ago | — | 2020 | Yong Jin Founder & CEO | Node.jsMUIReact+18 | — | — |
| 21 | Vaxdigm Developer of vaccines and immunotherapies for infectious disease 14Moat top 38%Patents top 45%Innovation top 50%Funding bottom 41% All 6 signals ▾Moattop 38% Patentstop 45% Innovationtop 50% Fundingbottom 41% Globalbottom 31% Marketbottom 26% Moat: Editorial + unicorn rating 4/10 · IP moat: 13 patents Patents: 13 patents matched (strict assignee match) · 13 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 14/100 | $2M | 19 mo ago | 9 | 2021 | — | — | 13 patents Viral capsid nanoplatforms for recombinant protein expression and self‑assembling nanoparticle vaccines | — |
| 22 | Ecoin Energy Technology for recycling waste plastic | $2M | 36 mo ago | 8 | 2015 | In Lee CEO | — | — | — |
| 23 | Seegene Technologies Developer of molecular diagnostic kits to detect infectious and genetic diseases | $2M | 78 mo ago | — | 2000 | Jong Yoon Chun CEO | Node.jsSalesforceTailwind CSS+14 | 1,257 patents Multiplex nucleic‑acid diagnostic assay design, automation, and data‑driven infectious disease testing | 1 launch · 1 award |
| 24 | Aents Provider of a software-as-a-service platform providing carbon neutrality management solutions for businesses | $1M | 38 mo ago | 10 | 2021 | Gwang Park CEO | HugoReactstyled-components+12 | 9 patents AI-driven carbon emissions monitoring, calculation, verification, and credit pricing solutions | — |
| 25 | Sonolux Healthtech Provider of an air based virus detection system 29Talent bottom 45%Funding bottom 44%Global bottom 33% All 3 signals ▾Talentbottom 45% Fundingbottom 44% Globalbottom 33% Talent: 1 named leader on record Funding: Raised $358k across 1 rounds · 1 rounds over 2 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 29/100 | $358K | 19 mo ago | — | 2022 | Seung Song CEO | — | — | 1 partnership |
| 26 | Quantamatrix Multiplexed platform for disease daignosis | $198K | 144 mo ago | 113 | 2010 | Sunghoon Kwon Founder & CEO | WordPress Block EditorWordPressMySQL+8 | 68 patents Rapid point‑of‑care microbial diagnostics and antibiotic susceptibility testing platforms | — |
Top 12 Sustainability Tech companies in South Korea
#1
Series C · Yeongcheon si, North Gyeongsang Province · founded 2017 · 23 employees$9.9Mraised▾
Provider of therapeutic solution for treating orphan diseases. The company pipeline products are TLR and TLR5 which can be used for agonists in pathogen recognition and activation of innate immunity, pathogen-associated molecular patterns (PAMPs) used for diseases like GvHD, Mucositis, and ARS. Other products offered by the company are Collagenase enzymes derived from microorganisms that break down collagen and used for the treatment of different musculoskeletal diseases like Dupuytren’s contracture, Peyronie’s Disease, Cellulite, and Wound debridement.
- Mar 2026Series C$9.9M
#2
Series B · Seoul, Seoul · founded 2016 · 29 employees$14.3Mraised▾
Developer of small molecule therapeutics for infectious diseases. The company is developing a treatment through bacteriophage for multi-drug resistant bacterias which include Pseudomonas, E.oli, Acinetobacter, and others.
- Sep 2025Series B$14.3M
- Oct 2024Series B—
#3
Series C · Gimcheon si, North Gyeongsang Province · founded 2017 · 17 employees$42.1Mraised▾
Provider of tyre recycling technology. It offers technology that recycles tyres into carbon black manufacturing components to produce new tyres.
- Jun 2024Series C$28M
- Mar 2023Series A—
- Aug 2022Series A$14.1M
#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
Public · Seoul, Seoul · founded 2014 · 68 employees$2.4Braised▾
Cellid is involved in developing personalized vaccines for treating cancer and infectious diseases. They have developed a platform, CeliVax, which activates the anti-cancer immune system which allows the immune cells to detect and kill cancer cells. Their pipeline products include BVAC-C is being investigated for cervical, head, and neck cancer, and BVAC-B for gastric cancer. The candidates are in phase II clinical trial.
- 2016Series A—
- 2015Series A—
- 2014Series A—
- 2014Series A—
#6
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
#7
Series A · Seoul, Seoul · founded 2021 · 9 employees$1.9Mraised▾
Developer of vaccines and immunotherapies for infectious disease. It offers synthetic antigen vaccines using microorganisms and animal cells for rapid protein development and production, DNA vaccine, and mRNA vaccine for covid and viral diseases.
- Oct 2024Series A$1.9M
#8
Series C · Seoul, Seoul · founded 2011 · 37 employees$22.7Mraised▾
Developer of Sensors, smart trash bins, and analytics software for waste management. The offered products are an ultrasonic waste fill-level sensor to monitor solid & liquid waste in the containers and GPS location tracking of bins, a solar-powered trash compactor LED backlights, LCD panel, graphics wrap and wifi routers, a cloud platform to collect data from sensors, and compactors to monitor waste collection operations, optimize waste collection routes and costs.
- Jun 2023Series C$11.7M
- Sep 2021Series B$11M
#9
Seed · Seoul, Seoul · founded 2022$357.5Kraised▾
Provider of an air based virus detection system. It is designed to protect individuals from invisible airborne viruses. It utilizes Photonic PCR technology to amplify air samples and detect viruses. The system offers real time monitoring, and also detect respiratory viruses, including Influenza A, Coronavirus, and RSV.
- Nov 2024Seed$357.5K
#10
Series A · Seoul, Seoul · founded 2021$2.4Mraised▾
Provider of carbon credit solutions and SaaS-based carbon accounting management software. It specializes in greenhouse gas emission measurement, analysis, reduction, and trading solutions.
- Apr 2024Series A$1.5M
#11
Series C · Seoul, Seoul · founded 2013 · 9 employees$27.5Mraised▾
Developer of drug delivery technology and biosensor technology. The DegradaBALLis a drug delivery technology for the development of gene therapy, cancer immunotherapy, antibody therapy, and synthetic drugs. The PANGO technology is the next-generation drug screening technology that allows the rapid screening of antiviral drugs from the drug candidate library.
- Apr 2021Series C$13.9M
- Dec 2018Series B$10.3M
- Mar 2018Series A$3.3M
#12
Series B · Seoul, Seoul · founded 2018 · 72 employees$3.1Mraised▾
Offers an AI-integrated digital twins for managing physical spaces. The company offers digital twins for running simulations to identify and manage issues in spaces. It enables users to monitor and manage the maintenance and development of infrastructure. It also provides energy management solutions for buildings.
- Dec 2023Series B$3.1M
- Oct 2022Series A—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Sustainability Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Climate Adaptation is moving in South Korea
A read on the academic research around Climate Adaptation — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 173 South Korea-affiliated papers.
- Korea Environment Institute17
- Kyungpook National University11
- Seoul National University11
- Korea Institute of Civil Engineering and Building Technology10
- Korea University10
- Flood myth10
- Flooding (psychology)5
- Climate change5
- Vulnerability (computing)4
- Flood mitigation3
- Flood myth16→33
- Climate change4→16
- Hydrology (agriculture)5→14
- Drainage4→10
- Flood mitigation3→9
- Flood myth6→12
Where climate adaptation 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.
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.