Climate Tech Startups
3,466 companies tagged Climate Tech, with their investors and founders.
Hippo Harvest grows leafy greens in controlled, sustainable greenhouses to supply year-round produce, and sells its greens through grocery stores. It operates in the indoor agriculture and food production sector.
2 investors
HiveTracks offers a free mobile app for beekeepers to record observations and manage hives, converting field notes into structured biodiversity data. The platform aggregates community-sourced records to support environmental decision-making and biodiversity monitoring across many countries.
2 investors
Holganix makes Bio 800+ soil products containing over 800 species of beneficial microorganisms that improve soil health, allowing farmers and turf professionals to reduce fertilizer and water use while increasing crop yields and carbon capture. The company serves American farmers and agricultural growers through its Farm Possible Program and Living Network of corporate partners and growers.
2 investors
Hone develops portable measurement devices for agriculture, including a handheld grain analyzer that gives on-farm moisture and protein readings and a soil testing service that measures soil carbon and soil health indicators. Its soil carbon service is designed to comply with Australia's Carbon Farming Initiative.
2 investors
Honest Mobile is a UK mobile network operator (MVNO) offering pay-monthly SIM plans, including a Classic SIM with unlimited UK calls and texts on the Three network and a Smart SIM backup eSIM providing data across EE, O2, Three and Vodafone with free roaming in 180+ countries. It markets itself to UK consumers as a carbon-negative, purpose-driven alternative to major networks.
2 investors
Hoofprint Biome develops probiotics and natural enzymes based on microbiome engineering to reduce methane emissions from cattle while improving animal health and feed yield. The company targets livestock and cattle production within sustainable agriculture.
2 investors
Horizon Growers develops and operates high-tech indoor farms designed to lower carbon emissions and grow produce closer to consumers. The company focuses on building shorter, more sustainable food supply chains.
2 investors
Hot Lime Labs develops patented limestone-based CO2 capture technology that captures and releases CO2 and heat on demand for the decarbonization of hard-to-abate industries such as horticulture, hydrogen production, and gas cleaning. Its first application, providing heat and CO2 for commercial greenhouses, has been demonstrated and is being commercialized through Aplenty.
2 investors
HutanBio produces HBx Bio Oil, a carbon-negative biofuel made from microalgae grown in desert regions using seawater and sunlight as a drop-in replacement for fossil diesel. The fuel is aimed at decarbonizing aviation, marine, and other fossil-fuel-dependent industries while remaining compatible with existing fueling infrastructure.
2 investors
Hylosense develops environmental data analysis and weather forecasting technology. The company's founders previously created AirCare, a mobile app for air pollution tracking used by millions globally.
2 investors
ICEYE operates a constellation of SAR (synthetic aperture radar) satellites to provide near real-time Earth monitoring, including observed flood extents, disaster impact data, and ISR capabilities. It serves defense and intelligence agencies, governments, insurers, and organizations managing natural catastrophe response and critical infrastructure.
2 investors
2 investors
Imio makes Re-Gen, a freeze-dried microbial powder applied to crop residue for row crops such as corn, helping farmers unlock NPK nutrient value and increase yields. The product is aimed at agricultural growers seeking fertilizer savings and higher output per acre.
2 investors
Immaterial develops monolithic metal-organic frameworks (m-MOFs), a nanoporous material platform, and scales them from lab to industrial production for gas separation applications such as carbon capture. The company, a University of Cambridge spin-out, designs and engineers adsorption-based systems for point-source and industrial carbon capture.
2 investors
ImpacFat develops stem-cell based omega-3 fish fat technology as a cultivated, sustainable alternative for the food industry. The Singapore-founded company works in the cultivated seafood and cellular agriculture space and is establishing an R&D hub in Tokyo, Japan.
2 investors
ImpactNexus offers a GHG & Impact Estimator, a science-based software platform that quantifies the climate mitigation potential of portfolio companies and early-stage startups. It serves climate impact investors, helping them measure emissions-reduction contributions and report climate impact to stakeholders.
2 investors
Infinite Cooling develops patented technology to capture airborne water droplets and improve the efficiency of evaporative cooling systems such as cooling towers, aiming to reduce water use and energy consumption for industrial customers like power plants. Spun out of an MIT lab in 2019, the company builds and tests its products at its manufacturing facility in Massachusetts.
2 investors
Infinium develops technology across two platforms, Infinium Energy and Infinium Edge, converting waste emissions into sustainable products and supporting more efficient scaling of next-generation computing. It operates in the energy and digital infrastructure sectors.
2 investors
Innocent Meat develops an automated "plug-and-produce" system that lets meat processors produce cultured (lab-grown) meat in-house instead of relying on conventional animal agriculture. It also operates a molecular farming platform, FABA.BIO, for large-scale recombinant animal protein production.
2 investors
INOVUES makes non-invasive glazing retrofit systems that upgrade existing building facades and windows to improve energy efficiency and cut carbon emissions without replacing the original components. It serves commercial and institutional building owners and Fortune 500 companies, primarily in the US.
2 investors
InSoil provides mid-term debt capital and lending to agricultural SMEs across Europe, with a focus on sustainable agriculture financing. The company operates as an agri-focused lending platform.
2 investors
Inspectorio provides a supply chain management platform for brands, retailers, suppliers, and manufacturers to manage production operations with emphasis on quality assurance, responsible sourcing, traceability, and supplier relationships.
2 investors
Instinct Environmental makes the ASU (Automated Surveying Unit), an automated acoustic monitoring device that listens for over 6,500 target species, identifies them on-device and reports detections over satellite within 30 minutes — replacing the manual site visits and after-the-fact audio review that wildlife surveying normally requires. The company assembles and tests its hardware in Oregon.
2 investors
Instream Energy develops patented hydrokinetic turbine systems that generate electricity from the flow of water in engineered and natural waterways, without dams or additional infrastructure. Founded in Canada in 2008, the company provides renewable baseload power for the energy market.
2 investors