Alternatives to 4DOceans

CleanTech company specializing in PET/polyester plastics and fibres recycling using microwave-assisted depolymerisation.

UBQ Materials converts unsorted household waste into a sustainable, bio-based thermoplastic material, replacing conventional plastics and other finite resources.

Democratizing bottle recycling with deep-learning technology and a sharing economy model.

Green processing of battery waste.

Critical metals processing company focused on recovering platinum group metals.

Sustainable phone cases and accessories.

A platform focused on enabling businesses to achieve and report on sustainability goals.

Transforms organic waste into renewable energy and nutrient-rich compost using anaerobic digestion.

Pioneer in robotic cleaning solutions for PV modules, ensuring year-round peak performance with water-free automation.

A leading vertically integrated producer and distributor of renewable natural gas (RNG).

Transforms waste heat into zero-emission electricity using an isothermal heat engine.

Industrial thermal energy storage solutions using sand.

Technology that removes CO2 from water, turning water infrastructure into carbon capture facilities.

Intelligently connects and controls energy assets for businesses to optimize usage and reduce costs.

Ultra-high temperature thermal energy storage solutions for industrial decarbonisation.

Calgary-based startup transforming industrial and mining waste into low-carbon supplementary cementitious materials for construction.

Modular nickel refining for critical minerals.

Global energy technology company providing microinverter-based solar-plus-storage systems and intelligent energy management solutions.

North America's leading provider of environmental and industrial services, specializing in waste management and recycling.

Notpla develops and produces sustainable, plastic-free packaging solutions from seaweed and plants, offering biodegradable and compostable alternatives for various applications.

Revolutionizing battery recycling for a circular future in Europe.

Nylon recycling startup with a novel approach to recycle Nylon 6 and Nylon 6,6 from textile waste.

Upcycles food waste into high-value lactic acid using climate-transformative technology.

Scaling circular infrastructure to reduce food waste and create value.

Developing a novel, sustainable process for extracting valuable minerals from industrial wastewater.

AI-powered platform that helps commercial kitchens reduce food waste and cut costs.

Biotechnology startup using genetically engineered insects to convert organic waste into high-value recombinant proteins.

Austrian organic fruit and vegetable rescue-box company that delivers produce not meeting retail standards.

Energy-as-a-Service platform for businesses.

METYCLE provides data platforms for climate tech companies to accelerate their impact.

Airovation Technologies develops patented air purification and carbon capture solutions based on advanced chemical processes to convert CO2 into valuable chemicals.

AI-powered robotics and analytics for waste sorting to improve recycling efficiency and profitability.

Full-service renewable natural gas platform developing and operating landfill gas-to-RNG projects across North America.

AI-powered SaaS platform for waste infrastructure, streamlining the design and operation of waste and recycling plants.

Indian e-waste management and recycling company focused on circular economy principles.

Automated food waste measurement and analysis for the hospitality industry.

Epoch Biodesign uses enzymes to break down plastic waste into monomers for new plastic production.

Enevo provides data analytics and logistics software for waste and recycling management.

Danish biofuel startup developing a patented process to convert lignin-based residues into climate-neutral marine fuels.

Trashie is a rewards-driven platform that incentivizes textile and electronics recycling.

Sanergy builds healthy, prosperous communities by providing safe, affordable sanitation and converting waste into valuable agricultural products.

Next-generation metals processing infrastructure for critical and precious metals recovery.

Turning low-grade plastic waste into building materials and home products.

Transforming beach-cast seagrass into sustainable textile yarns.

Developing circular biomass technology.

Automating EV dismantling at scale.

Foundry sand reclamation and recycling technology company.

Develops advanced recycling technologies for complex waste streams, focusing on plastics and electronics.

Bomvento is a cleantech startup focused on carbon removal through innovative technologies.

Optimizing municipal and food waste management.

Global leader in optimized resource management for water, waste, and energy.

Develops AI-powered grid analysis services for energy markets, focusing on stability and risk management.

Develops autonomous drone-based solutions for cleaning, inspection, and maintenance of renewable energy assets.

AI-powered predictive analytics for energy providers to optimize grid operations and customer engagement.

Develops a patented nano-material for passive solar cooling without electricity.

North American environmental services company providing waste management, water, and soil solutions.

Industrial company in hydrogen production and separation solutions.

Developer of plasma pyrolysis technology for industrial decarbonization and green hydrogen production.

A Brazilian startup focused on sustainable solutions for the oil and gas industry, specializing in bioremediation and environmental technologies.