Best Sustainability Tech Companies in Zurich, Switzerland
The 99 best Sustainability Tech companies in Zurich, Switzerland in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Climeworks.
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 Zurich
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Climeworks 🦄 Provider of direct air capture technology and carbon removal services | $762M | 11 mo ago | Series E | 352 | Christoph Gebald CEO & Founder | 186 patents Carbon capture from ambient air using specialized sorbent materials and direct‑air capture devices. | 1 job opening · 1 partnership |
| 2 | Memo Therapeutics Developer of antibodies for treating infectious diseases and cancer | $97M | 25 mo ago | Series C | 21 | — | 52 patents Therapeutic antibodies targeting BK virus and SIGLEC‑9, plus immunoreceptor gene recovery | 1 partnership |
| 3 | Flisom Manufactures CIGS thin films photovoltaics | $59M | 92 mo ago | Acqui-Hired | 48 | — | 264 patents Flexible thin‑film solar modules using roll‑to‑roll graded‑composition deposition. | — |
| 4 | Ava Provider of a wearable fertility tracking device | $43M | 96 mo ago | Acquired | 3 | — | 35 patents Wearable and remote monitoring of female fertility, contraception, and pregnancy biomarkers | — |
| 5 | Synhelion Developer of renewable fuels designed to replace fossil fuels | $41M | 42 mo ago | Series C | 36 | Philipp Furler Co-Founder & Co-CEO | 112 patents Patents concentrated in mechanical & energy engineering | — |
| 6 | LimmaTech Biologics Developing bioconjugate vaccines using glycoengineering and protein glycosylation techniques | $40M | 27 mo ago | Acquired | 40 | — | 37 patents Glycoengineered vaccine antigens and therapeutic glycoproteins for bacterial pathogens | — |
| 7 | Pexapark Provider of a platform for PPA marketplace | $40M | 32 mo ago | Series C | 114 | Michael Waldner Co-Founder & CEO | — | 1 launch |
| 8 | GlycoVaxyn Developer of bioconjugate vaccines to treat a range of bacterial infections | $32M | 207 mo ago | Acquired | 21 | Michael Wacker Co-Founder | 147 patents Engineered bacterial glycoprotein and polysaccharide conjugate vaccines for infectious disease prevention | — |
| 9 | Oxyle Provider of PFAS treatment solutions | $25M | 16 mo ago | Seed | — | Salvador Vidal Co-Founder | 9 patents Catalytic water treatment systems for degrading organic pollutants in wastewater | — |
| 10 | Virometix Vaccines and immunotherapeutic drugs for the prevention and treatment of infectious diseases (both bacterial… | $19M | 7 mo ago | Series C | 15 | Anna Sumeray CEO | 41 patents Vaccine antigen design and peptide‑based immunogens for pneumococcal and RSV protection | — |
| 11 | Jua AI-based platform offering solutions for weather forecasting | $18M | 12 mo ago | Series A | — | Marvin Gabler Co-Founder & Chief Scientist | — | — |
| 12 | Locatee Cloud-based space management solution for commercial spaces | $12M | 56 mo ago | Acquired | 54 | — | 14 patents IoT-based monitoring and analytics for functional facility usage and occupancy | — |
| 13 | Kenta Biotech Developing human monoclonal antibodies for the prevention and treatment of bacterial and viral infections | $10M | 207 mo ago | Deadpooled | 11 | — | 46 patents Therapeutic and diagnostic human monoclonal antibodies for S. aureus alpha‑toxin and P. aeruginosa LPS serotypes | — |
| 14 | UniSieve Provider of membrane solutions for gas separation and chemical feedstock purification | $10M | 37 mo ago | Seed | 13 | Samuel Hess CEO | 12 patents Membrane-based gas separation and carbon capture; polymer production from low-grade monomers. | — |
| 15 | Metafuels Developer of technology for sustainable aviation fuel production from green methanol | $8M | 2 mo ago | Series B | 3 | Leigh Hackett Co-Founder | 11 patents MOF-based catalysts for upgrading light hydrocarbons into transport fuels | 2 partnerships |
| 16 | Rqmicro Developer of instruments, reagents, and kits for rapid pathogen detection | $6M | 62 mo ago | Series B | 14 | Hans-Anton Keserue Founder & CEO | 18 patents Patents concentrated in transport & manufacturing processes | — |
| 17 | LEDCity Provider of AI-driven smart lighting products | $6M | 26 mo ago | Seed | 47 | Florian Gaertner-Wyniger Co-Founder | — | — |
| 18 | RTDT Developer of wireless sensor system for wind turbine blade monitoring | $4M | 11 mo ago | Seed | — | Aris Mukherjee Co-Founder & COO | — | 2 awards |
| 19 | Avelo Developer of a breath aerosol diagnostic device for respiratory infections | $2M | 45 mo ago | Seed | 8 | Tobias Broger Co-Founder | 6 patents Collecting and analyzing exhaled aerosol particles for respiratory diagnostic testing | 1 partnership · 1 award |
| 20 | Pallon AI-based platform for pipeline monitoring | $2M | 67 mo ago | Acquired | 27 | Dominik Boller Co-Founder | — | — |
| 21 | CellX Biosolutions Sustainable treatment of chemical waste | $2M | 15 mo ago | Seed | — | Estelle Clerc Co-Founder & CEO | — | 1 award |
| 22 | Redbiotec Multiprotein assemblies as prophylactic vaccines against infectious diseases | $2M | 138 mo ago | Late Stage | 12 | Corinne John Co-Founder | 42 patents HSV therapeutic vaccines and recombinant host cell production of casein proteins | — |
| 23 | KITRO Software solutions for food waste management | $2M | 18 mo ago | Seed | 6 | — | — | — |
| 24 | Viboo Provider of cloud-based building management system using IoT devices and AI | $2M | 8 mo ago | Series A | 7 | Felix Bunning Co-Founder & CEO | — | 3 job openings |
| 25 | Callirius AI and blockchain based platform to offset the carbon footprint | $2M | 36 mo ago | Seed | 10 | Ebrahim Attarzadeh Co-Founder & CEO | — | — |
| 26 | Solskin AI-based platform offering solar coatings solutions | $2M | 39 mo ago | Seed | 6 | Bratislav Svetozarevic Co-Founder & CEO | — | 2 awards |
| 27 | Inositec Developer of therapeutics for soft tissue calcification disorders | $1M | 115 mo ago | Acqui-Hired | 6 | — | 8 patents Inhibiting renal calcium oxalate stone formation using inositol phosphate analogs | — |
| 28 | Gilytics Provider of 3D visualization solutions for energy transmission | $1M | 66 mo ago | Seed | 16 | Stefano Grassi Co-Founder & CEO | — | 2 job openings · 1 partnership |
| 29 | Cotierra Provider of biochar solutions for carbon removal and soil regeneration | $1M | 21 mo ago | Seed | — | Thomas Kaslin Co-Founder | — | — |
| 30 | South Pole Provider of carbon offset solutions | $721K | 25 mo ago | Seed | 1 | Renat Heuberger Co-Founder & CEO | — | 2 partnerships |
| 31 | TwingTec Provider of wind energy drones | $259K | 83 mo ago | Funding Raised | 14 | Dino Costa Co-founder and Head of Test Operations | 12 patents Airborne tethered generators for converting wind into electrical power | — |
| 32 | irmos Provider of structural health monitoring for buildings and critical infrastructure assets | $210K | 21 mo ago | Funding Raised | 5 | Christos Lataniotis Chief Information Officer | — | 3 job openings · 1 award |
| 33 | Amphiro Developer of connected meter for tracking water consumption | $174K | 99 mo ago | Acquired | 8 | Elgar Fleisch Co-Founder | 12 patents Fluid flow measurement and resource consumption monitoring using generator-powered flow meters | — |
| 34 | Riverkin Provider of smart water management solutions | $174K | 19 mo ago | Funding Raised | — | Jessica Droujko Founder & CEO | — | 1 job opening |
| 35 | Groam Provider of solutions to convert agriculture waste into foamed biomaterials | $161K | 50 mo ago | Seed | 2 | Zuzana Sediva Co-Founder | — | — |
| 36 | Haelixa Developing DNA-based tracers to monitor temperature, light, pH, and oxidants for the energy industry | $128K | 4 mo ago | Acquired | 14 | Patrick Strumpf CEO | 8 patents Anti-counterfeit marking and verification of products, especially pharmaceuticals. | 1 launch |
| 37 | BluAct Technologies Technology solution for water purification | $116K | 88 mo ago | Funding Raised | — | Sreenath Bolisetty Co-Founder & CEO | — | — |
Top 12 Sustainability Tech companies in Zurich
#1
Series E · Zurich, Zurich · founded 2009 · 352 employees$761.6Mraised▾
Provider of direct air capture technology and carbon removal services. The company offers end-to-end carbon removal solutions and tailored portfolios. It combines engineered and nature-based solutions for forward-thinking companies. The company focuses on developing direct air capture technology and scaling the industry. It also provides resources, customer stories, and guides related to carbon removal.
- Jul 2025Series E$162M
- Apr 2022Series E$650M
- Jan 2021Series D—
- Jun 2020Series D$75.2M
#2
Series B · Langnau Am Albis, Zurich · founded 2019 · 3 employees$8Mraised▾
Developer of technology for sustainable aviation fuel production from green methanol. The company’s proprietary technology converts green methanol to sustainable aviation fuel. This process recovers carbon dioxide through direct air capture and biogenic methods. Green hydrogen can be generated from water electrolysis driven by renewable electricity. The technology aims to enable fuel manufacturers to produce sustainable aviation fuel at scale.
- Apr 2026Grant (prize money)$2.2M
- Feb 2026Series B$24M
- Jan 2025Series A$9M
- Jul 2024Grant (prize money)$5M
#3
Series C · Zurich, Zurich · founded 2009 · 15 employees$18.9Mraised▾
Virometix is a privately held biotechnology company developing a new generation of vaccines and immunotherapeutic drugs for the prevention and treatment of infectious and chronic human diseases. Rational molecular design, chemical synthesis and Virometix's proprietary Synthetic Virus-Like Particle platform technology allow for the rapid production and optimization of vaccine candidates with superior properties in terms of safety, efficacy and stability. Virometix Vaccines is a spin-out company from the University of Zurich.
- Nov 2025Series C$15M
- Jul 2020Series B$8M
- Sep 2017Series A$1.3M
- May 2017Series A$5.1M
#4
Series A · Pfaffikon, Zurich · founded 2022$18.5Mraised▾
AI-based platform offering solutions for weather forecasting. Its platform helps users with predicting and managing extreme weather events, managing demand and supply forecasting for renewable energies, and others.
- Jun 2025Series A$11M
- Feb 2024Seed$16M
- Oct 2022Seed$2.5M
#5
Seed · Schlieren, Zurich · founded 2020$24.8Mraised▾
Provider of PFAS treatment solutions. It provides wastewater treatment and PFAS elimination solutions using nanofiltration and foam filtration technology. It is also involved in developing machine learning models to monitor and adapt treatment solutions.
- Jan 2025Seed$16M
- Apr 2023Grant (prize money)$55.1K
- Dec 2022Seed$3M
- Jun 2021Grant (prize money)$3.3M
#6
Seed · Zurich, Zurich · founded 2022$4.1Mraised▾
Developer of wireless sensor system for wind turbine blade monitoring. The system provides aero-structural data for design, control, operations, and risk management. It features sensors, wireless autonomy, and a flexible design for installation on any blade section. The system supports configurations tailored to specific use cases, including aerodynamic and structural measurements. Data is delivered through dashboards and API access. Analytical modules offer insights at blade positions and turbine level. Actionable recommendations are provided to increase turbine profitability.
- Jul 2025Seed$4M
- Sep 2024Grant (prize money)$41.4K
- Mar 2024Grant (prize money)$11.8K
- Feb 2024Grant (prize money)—
#7
Series A · Dubendorf, Zurich · founded 2022 · 7 employees$1.7Mraised▾
Provider of cloud-based building management system using IoT devices and AI. The system retrofits commercial buildings with wireless IoT devices, including smart radiator thermostats and room sensors. Using artificial intelligence, the system learns the thermal behavior of each room. It then optimizes heating based on occupancy and weather forecasts. The system is managed through a cloud-based cockpit.
- Oct 2025Series A$3.9M
- Sep 2023Seed$1.7M
#8
Series C · Schlieren, Zurich · founded 2012 · 21 employees$97.2Mraised▾
Developer of antibodies for treating infectious diseases and cancer. The company has developed its proprietary microfluidic single-cell molecular cloning and screening technologies for the production of antibodies. The company's lead candidate is used to treat infectious diseases.
- May 2024Series C$22.1M
- Nov 2023Series C$27.5M
- Feb 2022Series B$24.9M
- Dec 2021Grant (prize money)$11.4M
#9
Acquired · Zurich, Zurich · founded 2015 · 14 employees$127.5Kraised▾
Haelixa provides intelligent DNA-based tracing solutions allowing fluid/item tracking and parameter monitoring (temperature, light, pH, oxidants) to support the energy industry (underground exploration and monitoring), and ensure product authentication and quality control as well as liability management. The tracers are composed of DNA sequences encapsulated within invisible particles that can be mixed with any fluid and item, providing it with a unique fingerprint, which is easily identified and quantified at parts per trillion level (1 milligram per ton) with bio-analytics used in medicine and forensics. The use of DNA permits to generate as many distinct fingerprints as are needed as unlimited DNA sequences are available. The encapsulation improves DNA stability, providing resilience in harsh conditions. Both DNA and particles can be engineered to obtain tracers capable of determining temperature, pH, oxidant concentration, light intensity. The main applications of the technology currently are - Reservoir Monitoring (characterize and monitor oil or geothermal reservoirs by tracking the movement of fluids in the subsurface) and Product Authentication (transparent identification a
- Feb 2026Seed$2.4M
- Sep 2019Seed—
- Sep 2017Grant (prize money)$730.2K
- 2017Seed$127.5K
#10
Acquired · Schlieren, Zurich · founded 2015 · 40 employees$40Mraised▾
LimmaTech Biologics is a clinical stage biopharmaceutical company focused on the development and manufacture of bioconjugate vaccines using glycoengineering and protein glycosylation techniques previously developed by GlycoVaxyn and now owned by GSK. The company was founded as a spin-off of GlycoVaxyn, which was acquired by GSK in February 2015 following a two-year collaboration. The proprietary bioconjugation platform is claimed to offer potential solutions to many issues associated with the chemical conjugation process - expanding the range of indications, enabling large scale manufacture at low cost. LimmaTech is developing vaccines exclusively for GSK and actively exploring applications of glycoengineering and protein glycosylation technology in other fields.
- Feb 2024Grant (prize money)$2.2M
- Feb 2024Series A$3M
- Oct 2023Seed—
- Oct 2023Series A$37M
#11
Seed · Zurich, Zurich · founded 2024$1.9Mraised▾
Sustainable treatment of chemical waste. It uses bacteria of high degradation performance and using them as biological solutions to dispose of specific industrial chemicals.
- Feb 2025Seed$1.9M
#12
Series C · Schlieren, Zurich · founded 2017 · 114 employees$39.8Mraised▾
Pexapark provides a platform for power purchase agreements(PPA) marketplace. It also provides solutions for revenue management, daily PPA prices, and renewable energy network. It provides monthly reports for the PPA market, PPA prices, PPA index, and PPA news.
- Sep 2023Series C$21M
- Jul 2022Series B$8.1M
- Jun 2020Series B$6.7M
- Aug 2019Grant (prize money)$55.1K
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 in Zurich is moving
A read on the academic research around Climate Adaptation in Zurich — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 53 papers.
ETH Zurich and University of Zurich lead Zurich's climate-adaptation research, focusing predominantly on agricultural impacts and flood risk, with a contested tone reflecting more concern than breakthrough.
- ETH Zurich40
- University of Zurich15
- Life Science Zurich1
- Climate risk1→8
- Climate change5
- Flood myth3
- Climate risk3
- Resilience (materials science)2
- Context (archaeology)2
- Climate change1→8
- Climate risk2→6
- Risk management1→3
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.