The climate transition is being built, deployed, and scaled right now.

At the HackSummit Startup Fair, we’re bringing together the founders and technologies shaping what comes next across energy, manufacturing, agriculture, mobility, and beyond.

From geothermal panels hidden beneath our cities to AI-driven solar intelligence, and circular materials to carbon removal and next-generation food systems, innovation meets real-world impact.

These startups are pitching ideas for the future, they’re delivering the infrastructure of a more resilient, sustainable economy today.

Discover what’s new and what’s next at the HackSummit Startup Fair, April 22-23.

What: Pioneering next generation deep petrothermal geothermal systems development.

How it works: Their Advanced Geothermal Systems (AGS, or Deep Geothermal Closed-Loop) produce hot water for heat and baseload electricity supply at the community level, recovering Earth’s heat energy from ubiquitous deep hot rock layers thanks to our EAPOSYS AGS (E.AGS) patented design.

What: Enerdrape has developed the world's first geothermal panel system to transform underground infrastructure into renewable heating and cooling sources. 

How it works: Their innovative technology harnesses geothermal energy from underground spaces such as parking lots and building foundations, providing sustainable thermal solutions for residential and commercial properties. 

What: Evolium Technologies reconditions and recycles micromobility batteries, giving them a second life in photovoltaic storage.

How it works: Manufacturing and marketing second-life batteries for small and medium-scale photovoltaic storage. Thanks to their reparability, their batteries are affordable and long-lasting with a subscription model to guarantee long-term battery capacity.

What: A sustainable flow battery technology for the renewable energy transition

How it works: Halide Energy develops a next-generation flow battery based on copper technology to assist in the renewable energy transition, allowing our users to move towards long duration energy storage assets.

What: LEPOSOL develops and produces innovative foldable PV systems specifically designed for commercial and industrial buildings. 

How it works: With installation >10x faster using a crane and equally simple dismantling, they simplify your project planning, even with upcoming roof renovations and limited usage periods.

What: NovaMea connects the dots for energy sovereignty

How it works: NovaMea connects materials, data, and industrial systems through AI to deliver integrated energy solutions that enhance efficiency, resilience, and ultimately energy sovereignty.

What: The intelligence layer for solar & BESS operations.

How it works: AI-driven algorithms analyze real-time data from your solar plant to detect anomalies, identify faults root causes and locate them across the plant.

What: Sunaxer absorber coatings are engineered for the highest optical performance and extreme durability at high temperatures.

How it works: Sunaxer helps industries cut reliance on fossil fuels by delivering a new method of heat harvesting. This next generation technology delivers solar receivers with high performance but with significantly reduced environmental impact and at lower cost.

What: The world’s first solar modules compatible with greenhouse crops.

How it works: Their innovative spectral filtering solution transmits all light frequencies needed by the crops into the greenhouse and transforms the remaining radiation into renewable power. Crop and energy production don’t have to compete, they complement.

What: Providing a fuel cell-based, pollutant-free generator that converts ethanol into clean electricity.

How it works: WattAnyWhere develops a 300kW mobile generator that converts renewable ethanol into clean electricity.

What: Enablings green chemistry for every industry. We do this by creating the most general and efficient technology platform for chemical production that the world has ever seen.

How it works: By bio-upgrading the chemical industry with their cell-free biomanufacturing platform, they can produce the products that modern society relies on in a truly sustainable way.

What: Replacing metal electrodes with advanced graphene-based carbon alternatives that are more sustainable, cost-effective, and high-performing.

How it works: Their graphene-based solutions deliver superior performance while reducing costs and environmental impact.

What: Optagon runs the entire development pipeline, simulating billions of scenarios in minutes, and delivering superior products faster than ever.

How it works: Chemistry and physics reasoning models simulate molecular interactions across millions of product and process combinations, predicting flavour, texture, stability, cost, and manufacturability. At a scale no human team can reach.

What: PeelPack have developed a novel class of sustainable biopolymers with high chemical and mechanical stabilities.

How it works: By introducing biodegradable and compostable biopolymer punnets, PeelPack aims to replace traditional paper and plastic packaging, significantly reducing the environmental footprint linked to fresh fruit and vegetable distribution and waste management.

What: Helping tanneries save water, chemicals and energy while increasing profits and producing the best quality leather.

How it works: At the heart of their technology are Sferes™ which are small polymer granules that replace much of the water in the retanning process and help to deliver chemicals more effectively.

What: Revolutionising textiles with eco-friendly nettle fibers, advanced tracking and controlled harvesting.

How it works: With HILAYA®, its sustainable fiber from the Himalayan Girardinia Diversifolia nettle, they promote biodiversity and support local communities. HILAYA® fiber is versatile and high-quality, suitable for a wide range of applications.

What: Pioneering decentralized carbon capture and biomass valorisation through their Transportable Wood Reactor (TWR) – a smart, mobile pyrolysis system designed to convert agricultural and forestry residues into biochar and pyroligneous acid (PA) on-site.

How it works: Their patented modular reactor leverages advanced thermal decomposition and AI-driven process optimization to deliver a clean, low-emission solution for remote and rural biomass management. The TWR empowers farmers, forest operators, and land stewards to turn waste into value—improving soil health, reducing methane and CO₂ emissions, and enabling carbon credit generation under leading certification standards.

What: Developping low-carbon binders based on mineralization, designed to serve earthworks, foundations and building works.

How it works: MeduSoil’s products improve the material properties of various geologies and mitigate various risks, such as settlements, erosion, or liquefaction. The breakthrough and patented technologies enable the use of biomineral binders, challenging the dependence on synthetic chemistry or mined binding agents to support construction projects reaching closer to net-zero.

What: Decarbonising industries by enabling competitive circular materials.

How it works: Futureproofing construction by utilizing demolition waste, timber dusts, and all other biogenic and mineral industrial residuals, unlocking a profitable circular economy and affordable quality of life.

What: Upcycling biogenic CO2 side-streams from industrial processes into valuable products, creating a circular economy in the chemical and agri-food industries.

How it works: Several industrial processes release biogenic CO₂ naturally as side-stream from their production, especially alcoholic fermentation and anaerobic digestion (biogas upgrading). While this by-product is usually lost, Circea offers quality systems and pathways to valorise it.

What: Transforming captured carbon into value by mineralizing CO₂ on-site while producing clean hydrogen.

How it works: Their cutting-edge technology enables rapid and efficient CO₂ mineralization. They also produce clean hydrogen and oxygen.

What: Developping next‑generation membrane electrode assemblies (MEAs) for advanced electrochemical systems.

How it works: Their technologies enable high‑performance solutions across hydrogen applications (fuel cells and electrolysis), Power‑to‑X (CO₂ electrolysis, green ammonia), and electrochemical separation processes such as water treatment and lithium recovery.
They offer PFAS‑free MEA options, supporting environmentally responsible and regulation‑ready electrochemical technologies without compromising performance.

What: Sixteen44 destroys methane at hotspots, such as dairy farms, landfills, and coal mines, where emissions are highest.
Methane is an invisible, yet potent greenhouse gas that traps 80x more heat in the atmosphere than CO2. Removing it is the fastest way to cool our planet and widely acknowledged by scientists as our emergency break on climate change.

How it works: Their technology works at the non-flammable, non-capturable methane concentrations which make up two thirds of all methane emissions worldwide.
Their process replicates methane oxidation found in nature, only much faster. The team aims to remove 1 million tonnes of methane by 2035, more than double the equivalent of Switzerland’s CO2 footprint. 

What: Award-winning, patented technology enables the selective refinement and recovery of rare earth elements from waste based on a bio-inspired approach, paving the way for a truly circular and sustainable supply of critical materials.

How it works: REEcover bridges the gap between cutting-edge chemistry and industrial impact, turning waste into resources for the technologies that power our future.

What: Building a nature-first remediation approach that cleans soil while creating a pathway to recover metals from harvested biomass.

How it works: RemePhy develops metal-hyperaccumulating plants to clean contaminated soils and recycle the waste materials starting with heavy metals. Their solution accelerates land restoration for the mining industry and agriculture, enables the safe redevelopment of industrial sites and strengthens the critical mineral supply chain.

What: Designing and building custom synthetic proteins that bind metals in complex mixtures with atomic precision. 

How it works: Their AI-powered bioengineering platform enables rapid, iterative material design.Material development at a scale previously not possible, extracting value from streams where conventional technology fails. With every design-build-test iteration, their accuracy improves and development speed increases.

What: AgroSustain develops natural pre- and post-harvest solutions that strengthen plant resilience and extend the freshness of fruits, vegetables, and flowers.

How it works: AgroSustain has developed a pipeline of plant-derived antifungal compounds against a broad range of agronomically important fungal pathogens present in pre- (in the field) and post-harvest (in storage). AgroSustain’s first product, called AgroShelf+, extends the shelf life of vegetables & fruits infected with mostly spread molds.

What: Decarbonising agricultural supply chains with biochar.

How it works: Their solutions integrate automated hardware with built-in MRV software, providing unmatched transparency for carbon credit generation. With its automated design, BCHAR makes turning waste into value as simple and efficient as possible.

What: databaum is building the decision layer for high-value crops. It brings operational intelligence to farming and helps a new generation of growers run farms with greater control, efficiency, and insight.

How it works: By combining farm data, sensors, weather insights, AI-powered disease alerts, digital documentation, and financial tracking in one platform, databaum helps growers make timely, precise decisions that protect yield and reduce waste.

What: Unlock your soil's potential with our device—measure enzymatic activity and discover its mineralization power at a glance.

How it works: Digit Soil provides solutions from basic research to field application.

What: Symactiv biostimulant restores the biology in your soil so you get better results year after year.

How it works: Symactiv biostimulants work with nature. It restores soil biology, improves structure, and makes nutrients available to plants naturally.

What: Hyswiss by Techponics is an AI-driven, automated hydroponic system for growing lettuce and leafy greens.

How it works: Techponics’ production system is based on Deep Flow Technique (DFT). They automate the whole production cycle, from transplanting, to spacing in the ponds and harvesting. Their system is natively designed to provide flexible automation at a lesser cost.

What: In both urban and agricultural settings, it is now essential to care for soil, observe it, conserve it, and enhance its value.

How it works: In a world where climate change and human activities are increasingly impacting urban and agricultural soils, Terasol supports soil-related projects and develops innovative solutions to make cities more resilient and enable future generations to benefit from the ecosystem services provided by soils.  

What: A nutrient-packed sweetener & beverage enhancer for Interplanetary people.

How it works: Unlike chemical sweeteners, which activate the sweetness receptor on the tongue with far greater intensity than sugar and can alter taste perception, Coccola works differently: it addresses the real reason we add sweetness to beverages.
It balances flavor and enriches your drink with naturally functional nutrients.

What: Developing a modular bio-manufacturing platform that upcycles agricultural and industrial side streams into higher-value ingredients for feed, food, and future functional applications.

How it works: Dapibuset’s approach combines fermentation technology with circular design to increase the value of existing resources rather than relying on new raw material extraction. Initial applications focus on animal feed, food and functional ingredient categories. By enabling local, resource-efficient bio-manufacturing, Dapibuset aims to help accelerate the transition toward a more resilient, circular, and sustainable food system - doing more with what is already available.

What: Reinventing everyday drinking - from hydration to coffee - with products that are healthier, more sustainable and undeniably delicious.

What: GAYA's unsweetened mushroom cacao blend is a powerful delicious alternative to coffee, designed to support focus, energy, and resilience.

How it works: Creating potent, plant-based products to support clarity, connection, and transformation, starting with functional mushroom formulas and expanding into a full ecosystem of superfoods and sensory tools.

What: A deep-tech ingredient solutions company that develops protein-based technologies for replacing a significant proportion of fats and oils in food and personal care products.

How it works: Using cutting-edge protein science, they have developed biolubricant technologies that recreate the sensory experience of everyone’s favourite products.

What: Perfat lipid-technology gives healthy liquid oils the solid structure and versatility of conventional solid fats. No chemistry, just material physics.

How it works: Developing a fat that delivers a superior nutritional profile combined with the desired functionality to allow food producers to replace traditional fats such as butter and palm oil with a much healthier solution.

What: Rebuilding reef structures with a 3D-printed, modular system designed to attract baby corals and other marine life.

How it works: Rebuilding and regenerating coral reefs through an innovative 3D-printed modular system that supports biodiversity and provides a thriving habitat for marine life.

What: Using Environmental DNA (eDNA) analysis SimplexDNA can identify organisms that are present at a given place and time without direct observation.

How it works: Samples are collected with a simple kit, shipped and stored at ambient temperature. In their lab, DNA is extracted, sequenced, and analyzed to identify thousands of species present in any ecosystem.

What: Creating solar-driven solutions that transform CO₂ and water into sustainable fuels.

How it works: Through an integrated solar-driven conversion pathway, SolaReFuel streamlines synthetic fuel production while ensuring full compatibility with today’s transport infrastructure. Focused on aviation and heavy industry, we address one of the most complex barriers in the energy transition: delivering carbon-neutral, high-energy-density liquid fuels at a meaningful scale.

What: Building a fleet of hydrogen-powered boats that are silent and ecologically-friendly by only emitting water vapor.

How it works: ZESST (zero emission speed ShuTle) is a revolutionary passenger ship generating no greenhouse gas emissions during operation. Fast (50km/h, 27 knots, 31 mph), reliable and comfortable, ZESST generate almost no wave and no noise.

What: Revolutionising our food system by creating sustainable & ultra-realistic alternatives to meat whole-cuts.

How it works: Using a new proprietary fermentation technology, Adamo Foods are launching the world’s first sustainable, healthy, and delicious steak, entirely made from fungi.

What: Premium alternative protein ingredients, customisable for various F&B Products.

How it works: Customising ingredient products to fit the specs you need to elevate your final products.

What: Harnessing the power of biology to create healthier lives and a better planet.

How it works: Human milk proteins are the golden nutritional and health-promoting proteins in early life nutrition. By producing highly bioactive alternative human milk proteins, through precision fermentation, PFx is creating a new category of ingredients that will support and boost the immune system. Beyond new generation infant formula, their non-allergenic, GMO-, dairy- and animal-free proteins are easily digestible and bioavailable, making them a perfect choice for all populations, including those with specific nutritional needs, namely elderly and athletes.

What: Driving the development of sustainable and affordable microalgal-based products for human and animal wellness.

How it works: Asteasier develops microalgae to produces high value-added molecules, primarily targeting the nutraceutical and animal feed sectors, with the goal of harnessing the biotechnological potential of microalgae as sustainable green factories.

What: Redefining cardiometabolic health with clinically proven -biotics, powered by cutting edge microbiome research

How it works: Genbioma developed a proprietary microbiome platform to drives clinically proven postbiotics through rigorous pre-clinical and clinical research.

What: Redefining mental and metabolic health—helping people build lasting resilience and balance.

How it works: Kioga’s breakthrough technology works with your body’s natural gut-immune-brain axis, targeting the interconnected pathways where inflammation impacts mental and metabolic health. Using advanced soil-derived postbiotics, we've developed a scientifically proven approach to target neuroinflammation and metabolic challenges at source.

What: Clinically proven gut health ingredients powering the next generation of functional food and feed.

How it works: Koralo enhances feed formulations for aquaculture and companion animals, improving gut health and minimising the risk of chronic conditions, driving vitality, performance and longevity from the inside out.

What: Lembas is redefining nutrition for the GLP-1 era.

How it works: Lembas is an AI-powered bioactive discovery company pioneering the next generation of science-backed ingredients for functional foods and supplements. Their first solution GLP-1 Edge™, is a natural peptide that supports appetite regulation and metabolic health by enhancing the body’s own GLP-1 response.

What: Delivering affordable, complete, future-proof nutrition.

How it works: Using wild-type unicellular organisms from aquatic environments to make protein-dense, non-GMO, and non-extractive nutrition that is affordable, with a focus on the Global South.

What: Precision microbiome ingredients for healthy aging.

How it works: Developing plant-derived, clinically validated ingredients that precisely modulate keystone gut microbial networks and their metabolites to target hallmarks of aging.

What: Developing field DNA analysis tools for biodiversity identification and monitoring.

How it works: Generalizing DNA sequencing for botanical purpose which will largely enhance the capacity of biodiversity referencing and monitoring by reducing sample exportation, accelerating classification and characterizing changes in ecosystem dynamics.

What: Automating remote inspections of submerged assets

How it works: Hydromea focuses on how submerged assets data acquisition and exchange, processing and analysis can be effortlessly scaled to revolutionise the industry's monitoring capabilities of critical assets.