Climate Tech & Carbon Removal Startups

A

AquaPoro

United States

AquaPoro Technologies builds industrial and residential water infrastructure that produces drinking water directly from ambient air using its proprietary ALMA (Atmospheric Low-humidity Moisture Adsorption) technology, which works even in low-humidity and arid conditions where conventional atmospheric water generators struggle. Its product line spans a compact residential unit (Droplet) and modular industrial systems (Stream, Ocean) for mission-critical, on-site water production. The San Diego-based climate-tech company grew out of atmospheric water-harvesting research and has been recognized by organizations including UNICEF and the World Food Programme.

I

Isometric

United Kingdom

Isometric is a London-based company building an AI-native certification platform for the industrial economy. Its Certify product uses machine-learning agents to ingest and cross-check the data behind industrial and environmental claims, including sensor readings, satellite imagery, supply-chain records and lab results, cutting certification timelines from months to hours. Founded in 2022 by Onfido co-founder Eamon Jubbawy, it is the largest carbon-removal certifier by contracted volume and serves clients such as Microsoft, Boeing, JPMorganChase and Anglo American.

F

Floox

Spain

Floox is a Barcelona-based manufacturer of direct-current (DC) fast chargers for electric vehicles, with a range spanning 7kW to 400kW for service stations, transport fleets and charging corridors. Its hardware emphasises high energy efficiency (above 97%), rapid installation and low maintenance, paired with a proprietary monitoring and predictive-maintenance platform. Founded in 2022 within the Premium PSU industrial group and spun out as an independent company in 2024, it operates across Spain, Portugal, France, Denmark and Austria and is expanding into Germany.

B

Brisil Technologies

India

Brisil Technologies is an Indian climate-tech manufacturer that turns rice husk ash, an agricultural waste by-product, into precipitated and highly dispersible silica using a proprietary zero-waste chemical process. Its silica replaces conventional sand/quartz-derived material across tire, rubber, footwear, paint, food and personal-care applications, cutting carbon emissions and energy use versus traditional production. Founded in 2016 and based in Halol, Gujarat, the company supplies both domestic and international customers.

T

Terraxy

Saudi Arabia

Terraxy is a Saudi deep-tech startup spun out of King Abdullah University of Science and Technology (KAUST) that develops soil-regeneration and carbon-capture technology for arid environments. Its flagship product, Carbosoil, is a soil enhancer reported to improve plant growth and yield by up to 70% with the same water and nutrient inputs while enabling durable carbon storage, alongside a SandX irrigation-efficiency technology. The company targets desert greening and afforestation aligned with the Saudi Green Initiative and Vision 2030.

V

Vertoro

Netherlands

Vertoro is a Dutch cleantech company, spun out in 2017 of a Brightlands Chemelot Campus public-private partnership, that converts plant-based and woody biomass residues into a stable renewable crude oil. Its catalyst-free, low-pressure and low-temperature process yields crude lignin oil (CLO) and crude sugar oil that can be refined into low-carbon marine fuels, sustainable aviation fuel and bio-based chemicals using existing refinery infrastructure. The company runs a demonstration plant in Geleen, Netherlands, and is preparing commercial deployment via a licensing model with partners including Raizen.

S

Seqana

Germany

Seqana is a Berlin-based digital MRV (monitoring, reporting and verification) company, founded in 2020, that quantifies soil health using satellite imagery and proprietary machine learning models paired with ground-truth data. Its products, including Digital Soil Maps and soil-sampling designs, serve agrifood firms and carbon-market project developers across millions of hectares worldwide. The company co-authored Verra's VM0042 v3 methodology and Gold Standard's SOC Model Guidelines, and counts Danone, Bayer, Klim and eAgronom among its customers.

E

EarthSync

India

EarthSync is an Indian climate-tech startup, founded in 2024, that builds a unified AI platform for renewable energy planning, procurement, and operations. It combines techno-economic modelling, regulatory intelligence, and real-time simulation to help Independent Power Producers, commercial and industrial enterprises, advisors, and utilities evaluate, optimize, and procure clean energy assets. The platform replaces slow, spreadsheet-driven consulting and fragmented point tools with a single workflow for decarbonization decisions.

F

Frost Methane Labs

United States

Frost Methane Labs is a US climate-technology company, founded in 2019 by Olya Irzak, that destroys waste methane and turns it into recurring revenue via carbon credits. It installs and remotely operates proprietary cover-and-flare systems on livestock farms (and at abandoned coal mines, landfills, and natural seeps), then sells verified emission-reduction credits and shares the proceeds with farm partners. The company positions flaring as a low-capex alternative to digesters for medium-sized methane sources and has been operating sites since 2023.