Top 50 Desalination Technology - Series B

This startup develops low-cost handheld seawater desalination devices for humanitarian and marine applications, providing a reliable source of potable water in areas facing freshwater scarcity. Additionally, the company offers grid-scale energy storage and clean electricity solutions, enhancing energy accessibility while promoting sustainability.

Capture6 provides a modular system that integrates desalination with atmospheric CO₂ capture, turning brine waste into fresh water while permanently storing carbon. The closed-loop unit can be retrofitted to existing water or industrial facilities, eliminating brine disposal costs and creating revenue from water sales and carbon credits.

Ebb develops electrochemical water technology that processes desalination brine to produce additional freshwater and valuable industrial products. This process also facilitates permanent atmospheric carbon dioxide removal by returning alkaline seawater to the ocean. The modular systems integrate with existing desalination infrastructure to enhance water security and support decarbonization efforts.

Gradiant provides integrated water‑treatment platforms for large industrial facilities, combining membrane, adsorption, oxidation and extraction technologies to reduce freshwater intake and recover metals, minerals and other resources. The systems include an AI‑driven SmartOps analytics layer and proprietary CURE chemicals that continuously optimize process setpoints, predict maintenance and ensure compliance for applications such as zero‑liquid‑discharge, PFAS destruction, lithium extraction and electrolyzer‑ready water.

RePG Energy utilizes patented technology to generate electricity and potable water from latent heat and waste heat sources, employing principles of osmosis and diffusion without the need for turbines or generators. This system addresses energy inefficiency and water scarcity by enabling decentralized energy production and water generation in residential, industrial, and mobile applications.

Aquafortus utilizes a non-thermal recovery and crystallization technology platform to efficiently extract valuable resources from wastewater. This process reduces environmental impact and enhances resource recovery, addressing the challenges of waste management in various industries.

Commercializes a Hybrid Direct Air Capture (HDAC) system that captures CO2 and harvests water from ambient air using only electricity and solid sorbents, eliminating the need for water and heat. This approach reduces energy consumption and operational costs, enabling deployment in water-scarce regions while producing water as a byproduct. The HDAC system offers the lowest Levelized Cost of Capture in the direct air capture market.

The startup develops ceramic flat membrane filtration technology for wastewater treatment, providing reliable alternatives for water and sewage management. Their solutions enhance operational efficiency and ensure compliance with environmental standards in industrial applications.

The startup has developed a portable hemodialysis system that enables patients with kidney disease to perform dialysis independently, utilizing automated processes and multiple treatment modalities. This technology addresses the challenges of accessibility and affordability in kidney care, allowing patients to manage their treatment anywhere.

Summit Nanotech utilizes patented direct lithium extraction technology to efficiently extract high-purity lithium from brine, significantly reducing production time from 18 months to just one day. This process addresses the increasing global demand for lithium in electric vehicle batteries while minimizing environmental impact by reinjecting lithium-depleted brine back into the source.

Tidal Vision manufactures chitosan-based biomolecular solutions using its proprietary Chitofining™ Process and Zale Technology™ to address water treatment and agricultural challenges. Their products enhance efficiency and reduce environmental impact by providing high-concentration, zero-waste alternatives to traditional chemical solutions.

Moleaer develops industrial-scale nanobubble systems that enhance oxygen transfer rates in water treatment and agricultural processes, improving chemical reactions and water quality. Their technology enables more efficient irrigation and aquaculture by increasing dissolved oxygen levels, which promotes plant health and reduces operational costs.

EnergyX utilizes patented Direct Lithium Extraction technologies to efficiently convert brine into high-purity lithium products, addressing the global supply shortage of this critical resource. The company's advancements in lithium refining and battery innovation support the growing demand for sustainable energy storage solutions in electric vehicles and renewable energy systems.

The startup has developed a purification and disinfection device that generates hydrogen peroxide using only water, air, and electricity, producing an eco-friendly biocide. This technology enhances food and water safety while minimizing the environmental impact and risks associated with transporting and handling toxic disinfectants.

Captura utilizes renewable energy to perform Direct Ocean Capture, extracting CO2 from seawater to enhance the ocean's natural carbon removal processes without additives or by-products. This technology addresses the urgent need for scalable carbon removal solutions to mitigate climate change impacts.

Allonnia develops biotechnological solutions to remediate emerging contaminants such as PFAS and 1,4-dioxane using proprietary microbial systems and innovative separation technologies. Their methods enable the detoxification of contaminated water, aiming to treat over 600 billion gallons by 2040 while enhancing sustainable practices in the metals and mining industries.

The startup manufactures hygienic water taps that utilize advanced filtration technology to provide both still and sparkling water, with capabilities to heat and chill. These taps deliver clean drinking water solutions for restaurants, offices, and homes, reducing reliance on single-use plastic bottles and promoting environmental sustainability.

This startup provides treatment processes for natural gas and produced water in the oil and gas industry, utilizing automated control and data collection technologies for H2S gas, acid gas, and produced water treatment. Their systems enable firms to meet environmental regulations while minimizing human intervention and enhancing the reusability of water resources.

Haber provides a real-time automation platform that utilizes AI-driven algorithms and robotic sampling to monitor and control process, utilities, and water systems. This technology enhances operational efficiency by reducing chemical consumption, minimizing variability, and improving output quality in industrial settings.

Versogen develops a scalable anion exchange membrane (AEM) electrolyzer that utilizes water and renewable energy to produce green hydrogen, addressing the need for zero-emission solutions in hard-to-abate industries. By employing earth-abundant materials, the technology offers a reliable and cost-effective method to significantly reduce industrial carbon emissions.

Outset Medical is a medical technology company that has developed a portable dialysis system designed to enhance patient comfort and accessibility. This technology addresses the challenges of traditional dialysis by enabling patients to receive treatment in various settings, thereby improving their quality of life and reducing the burden on healthcare facilities.

Rainmaker employs cloud seeding technology, utilizing radar validation and weather-resistant drones to enhance precipitation for agriculture, water supply, and ecosystem restoration. This approach directly addresses freshwater scarcity caused by climate change and increasing global consumption, providing a scalable solution to replenish vital water resources.

Via Separations develops proprietary membrane materials that reduce energy consumption in thermal separations by up to 90%, enhancing efficiency in industrial processes. Their technology addresses the significant energy demands of manufacturing sectors such as pulp and paper, chemicals, and refining, delivering substantial cost savings and operational flexibility.

The startup develops software-guided ultrasonic technology that utilizes beam-forming techniques to precisely target and sonicate materials without halting production or using chemicals. This approach enhances process efficiency and helps clients meet stringent environmental regulations.

280 Earth manufactures Direct Air Capture (DAC) systems that extract CO2 from the atmosphere, addressing the excess carbon levels that have risen from 280 to 425 parts per million since industrialization. Their facility in The Dalles, Oregon, is designed to capture over 20,000 tons of CO2 annually, contributing to long-term climate improvement and sustainable carbon removal solutions.

Hydraloop develops a water recycling system that captures and purifies domestic wastewater for reuse in showers, gardens, and laundry, promoting water circularity in urban environments. This technology addresses the growing demand for sustainable water management solutions amid increasing water scarcity.

The startup develops an artificial intelligence-based leak detection and auto-shutoff system that identifies and stops water leaks at their source. This technology prevents water damage from leaks and broken pipes, enabling organizations to conserve water and reduce carbon emissions associated with water waste.

H2Pro develops a decoupled, membraneless electrolysis method for green hydrogen production, significantly reducing costs and enhancing operational flexibility. This technology addresses the need for affordable, scalable green hydrogen to support renewable energy integration and achieve net-zero emissions.

Lygos produces bio‑manufactured specialty polymers, including the Soltellus™ family, from renewable sugars and CO₂. These biodegradable, water‑soluble polymers act as performance boosters, super‑absorbents, and scale inhibitors for agronomy, home‑care, hygiene, personal‑care, and water‑treatment formulations, enabling customers to replace persistent chemicals without sacrificing efficacy or cost. Lygos also supplies technical documentation and collaborative formulation support to accelerate product development.

Bevi develops a smart water dispenser that connects to a building's water supply, providing customizable still and sparkling beverages using a specialized carbon filtration system. This technology eliminates the need for single-use plastic bottles and cans, saving an average of 50,000 containers annually per machine while offering a healthier hydration option with zero- and low-calorie flavors.

Hysata develops hydrogen electrolyzers that utilize advanced membrane technology to efficiently convert water into green hydrogen, addressing the reliance on fossil fuels for energy. Their electrolyzers aim to lower production costs and increase the scalability of green hydrogen, facilitating a transition to sustainable energy sources.

Spiritus Technologies develops direct air capture (DAC) technology utilizing novel sorbent material and process innovation to achieve carbon removal below $100 per ton. Their modular, low-temperature DAC system significantly reduces operational and capital expenditures for high-durability atmospheric carbon removal. The company also offers Orchard Power, providing net-zero energy generation comparable in price to solar and batteries by integrating low-cost DAC with waste heat sources.

H2SITE utilizes palladium-alloy membrane reactors to extract high-purity hydrogen from easily transportable feedstocks like ammonia and methanol, achieving over 99% purity and up to 98% recovery efficiency. The company addresses the challenge of high costs and inefficiencies in long-distance hydrogen transport, enabling small and medium enterprises to access low-carbon hydrogen more affordably.

SunCulture provides solar-powered irrigation pumps that enable smallholder farmers to access reliable water supply, irrigation, and energy for lighting and mobile charging. This technology increases crop yields by up to 300% while reducing water usage by 80%, addressing the critical challenges of water scarcity and low agricultural productivity.

Syzygy Plasmonics develops a photocatalytic reactor that utilizes light to produce hydrogen and syngas from low-carbon-intensity feedstocks, eliminating the need for combustion in chemical production. This technology addresses the high carbon emissions associated with traditional fossil fuel-based chemical processes, enabling a more sustainable and cost-effective approach to fuel production.

The startup develops a bio-based adsorbent material that selectively captures micro-pollutants such as pesticides and pharmaceuticals from contaminated water and wastewater. This technology enables clients to meet stringent wastewater regulations while protecting local ecosystems from harmful pollutants.

The startup develops high-power hydrogen fuel cells that utilize electrochemical conversion of hydrogen-containing fuels for sustainable power generation. This technology enables the transportation and power industries to reduce carbon emissions and transition to cleaner energy sources.

The startup develops lightweight pressure control equipment, including gas and fluid pressure regulators, to enhance the reliability of conventional valve systems. Their technology simplifies water distribution systems, ensuring consistent potable water supply while meeting stringent water quality and leakage control standards, ultimately reducing operational costs for energy, water, and process industries.

Panthalassa harnesses oceanic energy through advanced marine technology to generate low-cost, renewable power for offshore computing and sustainable fuel production. This approach addresses the global demand for clean energy while utilizing the ocean's vast renewable resources.

ElectraLith develops a direct lithium extraction and refining technology that produces battery-grade lithium hydroxide in a single, modular process without the use of water or chemicals. This method addresses the environmental impact of traditional lithium production by utilizing renewable energy, enhancing sustainability in lithium supply chains.

This company designs and deploys liquid-cooled datacenter infrastructure optimized for high-density computing workloads. Their solutions reduce operational costs, minimize environmental footprint through lower energy and water usage, and accelerate deployment timelines. They provide end-to-end capabilities for building efficient, scalable, and sustainable data facilities.

The startup manufactures a patented UV-light pasteurization system designed to inactivate microorganisms in liquid food products. This energy-efficient technology provides clients with a reliable method to ensure product safety and extend shelf life without the need for thermal processing.

N-Drip has developed a gravity-powered micro-irrigation system that utilizes existing field infrastructure to deliver precise irrigation without the need for pumps or filters. This technology significantly reduces water usage in agriculture, addressing the inefficiencies of traditional flood irrigation, which wastes up to 70% of water resources.

Elicit Plant develops phytosterol-based solutions that enhance crop resilience to drought by improving water management and reducing consumption by 20%. Their technology enables maize, wheat, and sunflower crops to maintain yields during water shortages, addressing the challenges posed by climate change and water scarcity.

Provides a utility management platform that integrates smart metering and real-time data analytics to optimize energy and water distribution networks in emerging markets. This system reduces operational inefficiencies, minimizes energy losses, and supports sustainable resource management for utilities and large consumers.

Hydrosat utilizes thermal infrared satellite technology and proprietary algorithms to provide field-level and regional analytics for irrigation and crop management. The company helps governments and farmers optimize water usage while increasing crop yields across millions of hectares globally.

Ceibo offers a modular skid‑mounted hydrometallurgical leaching system that can be retrofitted to existing copper mine circuits to extract copper from low‑grade ores. The platform uses proprietary solvent‑extraction chemistry and AI‑driven process control to achieve up to four times faster recovery while using five times less water and reducing capital costs to about 10 % of traditional concentrators. It provides turnkey deployment with digital monitoring and remote diagnostics for lower operating expenses and reduced CO₂ emissions.

Marvel Fusion pioneers laser-driven inertial confinement fusion to generate abundant, clean energy. This approach utilizes high-power, ultra-short pulse lasers and non-cryogenic fuels to initiate fusion reactions. The company is developing this technology to deliver sustainable fusion power to the grid by the mid-2030s.

Noya retrofits existing equipment with Direct Air Capture technology to efficiently extract carbon dioxide from the atmosphere, addressing the urgent need for carbon removal to achieve net-zero emissions. By utilizing energy-efficient and modular designs paired with renewable energy sources, Noya aims to provide cost-effective carbon dioxide removal solutions at scale.

Oceanloop utilizes recirculating aquaculture systems (RAS) to farm Pacific white shrimp and other seafood species in a sustainable, land-based environment, significantly reducing CO₂ emissions. The company aims to meet the growing global demand for animal protein while setting new standards for shrimp quality in Europe.