10 Emerging Climate Change Startups Reshaping Global Sustainability

Climate change action is shifting from targets to operational deployment across energy, industry, and land systems, with large companies signing supply-style agreements for measurable outcomes.

Google purchases 200K tons of CO2 removal from Mombak through Amazon reforestation projects, while Microsoft scales durable removals through a growing portfolio of carbon dioxide removal contracts.

In parallel, market-building mechanisms like Frontier commit USD 1 billion+ to permanent carbon removal purchases between 2022 and 2030, and Amazon backs climate technology commercialization through its USD 2 billion Climate Pledge Fund.

These moves increase demand for tools that measure emissions, verify removals, monitor ecosystems, and connect buyers with solutions. The following climate change startups build this backbone of execution across carbon dioxide removal, green fuels, pollution monitoring, forest intelligence, environmental sensing, and emissions management:

1. OaVana (UAE): Climate-Positive Action Tracking and Rewards
2. ocane (UK): Ocean-based Green Fuel Platform
3. Neutura (Indonesia): Biochar-based Carbon Dioxide Removal
4. NoHarm (USA): AI-Powered Climate Technology Marketplace
5. Azulfy (Portugal): Satellite-based Pollution Monitoring Platform
6. sequestra (Austria): Carbon Sequestration
7. Orbisens (Germany): Modular Environmental Sensors
8. Terra Labs (Sweden): Satellite- and AI-Powered Forest Intelligence Platform
9. Rebuilt (Australia): Carbon Data Platform and Marketplace
10. Hedge5 (India): Greenhouse Gas Emissions Management Platform

Meet Innovative Climate Change Startups to Watch in 2026

1. OaVana – Blockchain-based Climate Rewards

• Founding Year: 2025
• Location: Dubai, UAE

UAE-based startup OaVana is a blockchain-powered app that rewards climate-positive behaviors with digital tokens. The decentralized app facilitates tamper-proof tracking of green actions such as reducing plastic, saving electricity, or taking public transport.

Moreover, users benefit from a carbon-focused marketplace and access to green jobs and skills opportunities. This encourages users to build eco-friendly habits.

2. ocane – Ocean-based Green Fuel Production

• Founding Year: 2024
• Location: London, UK

UK-based startup ocane addresses climate change through green fuels, including sustainable aviation fuels (SAFs) and marine methanol. Its platform, P-Fuels, utilizes the ocean’s thermal energy and dissolved carbon dioxide (CO2) for producing clean fuels.

It extracts hydrogen and carbon feedstocks from seawater using anchored rigs. The captured gases convert into methanol. This methanol serves as both a shipping fuel and a feedstock for SAF. Further onshore refining sequesters heavy waste byproducts.

This approach embeds CO2 removal (CDR) into fuel production, cooling oceans, and reducing ocean acidification. It provides a scalable alternative to hydroprocessed esters and fatty acids (HEFA)-based biofuels for the aviation, shipping, and heavy industries.

3. Neutura – Biochar Carbon Removal

• Founding Year: 2023
• Location: Jakarta, Indonesia

Indonesian startup Neutura offers biochar-based CDR to combat climate change. It uses pyrolysis technology to convert biomass waste into biochar. This effectively sequesters carbon, preventing its release into the atmosphere.

The biochar serves as a carbon-stable material for soil improvement as well as construction needs. The startup also issues carbon removal credits for businesses and climate-related projects to enhance sustainability.

4. NoHarm – AI Climate Tech Marketplace

• Founding Year: 2025
• Location: Texas, US

US-based startup NoHarm offers a climate technology marketplace platform. The platform matches sustainable solutions with buyers and allies. It uses artificial intelligence (AI) to ensure the right fit based on industry needs, sustainability goals, and impact potential.

Buyers benefit from efficient discovery and procurement of climate-aligned technologies. Climate innovators and service allies benefit from connections, scaling support, and access to relevant partners. This catalyzes the adoption of climate innovations.

5. Azulfy – Satellite-Powered Pollution Monitoring

• Founding Year: 2023
• Location: Coimbra, Portugal

Portuguese startup Azulfy provides a real-time pollution monitoring platform based on Earth Observation satellite data. The satellite captures high-resolution imagery of water bodies, air, and land. The platform processes this data using AI algorithms to detect pollution patterns.

The platform delivers pollution alerts daily for regulatory reporting, sustainability, and public health. This allows local governments and municipalities to achieve compliance and proactive environmental management. It also provides a faster alternative to manual sampling.

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6. sequestra – Carbon Sequestration

• Founding Year: 2024
• Location: Vienna, Austria

Austrian startup sequestra develops a carbon mineralization platform that permanently binds CO2 in industrial mineral residues and converts them into secondary construction materials.

It applies accelerated carbonation to mineral waste streams such as steel slags, incineration ashes, and demolition debris by reacting captured CO2 with calcium- and magnesium-rich compounds to form stable carbonates.

The startup conducts material characterization, quantifies carbonation potential, and optimizes reaction parameters in controlled reactors to ensure consistent CO2 uptake across heterogeneous residues.

It integrates process data, reactor design, and industrial workflow engineering to scale mineralization from laboratory validation to on-site deployment. As a result, the technology stores CO2 in solid form while valorizing industrial byproducts.

7. Orbisens – Modular Environmental Sensors

• Founding Year: 2024
• Location: Berlin, Germany

German startup Orbisens makes environmental sensors for real-time monitoring of hyper-local weather, temperature, pollution levels, and air quality. The sensors are modular with adaptable measurement and communication modules. They increase the density of measurement networks.

The sensor system allows city planners, municipalities, and weather-critical infrastructure operators to make climate-based decisions in urban planning. It also eliminates the use of cables or moving parts, minimizing maintenance.

8. Terra Labs – AI Forest Intelligence

• Founding Year: 2023
• Location: Stockholm, Sweden

Swedish startup Terra Labs provides a forest intelligence platform to address climate change. It uses satellite imagery combined with AI processing to generate continuous, real-time insights about vegetation and land conditions.

The platform generates digital forest management plans that closely resemble manmade ones. This benefits forestry managers with precise land information, improving sustainability planning.

9. Rebuilt – Low-Carbon Materials Marketplace

• Founding Year: 2025
• Location: Sydney, Australia

Australian startup Rebuilt offers a carbon data platform and marketplace. It measures product carbon footprints (PCFs) for building materials, supporting low-carbon construction.

It uses lifecycle assessment (LCA) tools to create carbon reports. It features side-by-side product comparison and produces shareable reports. Verified carbon claims enable manufacturers to enhance product transparency and compliance. It also allows architects, builders, and procurement teams to source verified, low-carbon materials with ease.

10. Hedge5 – GHG Emissions Tracking Platform

• Founding Year: 2023
• Location: Bengaluru, India

Indian startup Hedge5 provides a decarbonization and emissions management platform for industrial and commercial operations. It issues decarbonization tokens as verified digital assets backed by sustainability data.

The platform creates emission heatmaps, analyzes operational data, and tracks carbon reduction outcomes. It also conducts AI-powered predictive modeling for greenhouse gas emissions. This benefits manufacturers, energy firms, and logistics providers by guiding structured carbon reduction and compliance reporting.

Startup Identification Process

This climate change startup analysis draws on proprietary intelligence from the StartUs Insights Discovery Platform, tracking 9M+ companies, 25K+ technologies, and 190M+ patents and reports.

We screened 31K+ climate change startups worldwide, assessing innovation signals across decarbonization, renewable energy, carbon capture, climate risk analytics, funding, and partnerships.

The results show strong activity in the USA and Germany, followed by India. Key innovation hubs include London, New York City, Singapore, San Francisco, and Berlin, reflecting concentrated cleantech R&D and investment ecosystems.