--- title: Startup Portfolio | Cohort 23-3 (FGC 2) description: Cohort 23-3 (FGC 2) | Tackling global billion-dollar markets and hard-to-abate sectors, our climate tech startups are addressing the emissions challenges that will make or break this decisive decade. --- [Skip to content](https://www.third-derivative.org/portfolio/tag/cohort-23-3-fgc-2#main-content) [![logo-dark](https://www.third-derivative.org/hubfs/Atomic_Third_Derivative/logos/logo-dark.png)](https://www.third-derivative.org) - [Our Portfolio](https://www.third-derivative.org/portfolio) - [For Entrepreneurs](https://www.third-derivative.org/startups) - [Eligibility & Selection](https://www.third-derivative.org/startups) - [How to Apply](https://www.third-derivative.org/startup-application) - Programs & Opportunities - Innovation Cohorts & Partnerships - [Industrial Innovation Cohorts](https://www.third-derivative.org/industrial-innovation-cohorts) - [Future Industries Partnership](https://www.third-derivative.org/future-industries-partnership) - Impact Archive - [Clean Mobile Power Initiative Cohort](https://www.third-derivative.org/clean-mobile-power-initiative-cohort) - [First Gigaton Captured](https://www.third-derivative.org/first-gigaton-captured) - [Cooling Innovations](https://www.third-derivative.org/global-cooling-innovations) - [Passive Daytime Radiative Cooling](https://www.third-derivative.org/passive-daytime-radiative-cooling) - [Insights & Events](https://www.third-derivative.org/insights) - [About Us](https://www.third-derivative.org/about) - [Our Team](https://www.third-derivative.org/team) - [Careers](https://www.third-derivative.org/careers) - Our Partners - [Corporates](https://www.third-derivative.org/corporates) - [Investors](https://www.third-derivative.org/investors) - [Mentors](https://www.third-derivative.org/mentors) English # Startup Portfolio: Cohort 23-3 (FGC 2) ## Climate Technology Startups Third Derivative is proud to present the world's most impactful climate tech startups.  ##### STARTUPS BY COHORT: - [Cohort 417](https://www.third-derivative.org/portfolio/tag/cohort-417) - [Cohort 419](https://www.third-derivative.org/portfolio/tag/cohort-419) - [Cohort 22-1](https://www.third-derivative.org/portfolio/tag/cohort-22-1) - [Cohort 22-2](https://www.third-derivative.org/portfolio/tag/cohort-22-2) - [Cohort 22-3 (First Gigaton Captured)](https://www.third-derivative.org/portfolio/tag/cohort-22-3-cdr) - [Cohort 23-1](https://www.third-derivative.org/portfolio/tag/cohort-23-1) - [Cohort 23-2](https://www.third-derivative.org/portfolio/tag/cohort-23-2) - [Cohort 23-3 (First Gigaton Captured)](https://www.third-derivative.org/portfolio/tag/cohort-23-3-FGC-2) - [Cohort 23-4 (Clean Mobile Power Initiative)](https://www.third-derivative.org/portfolio/tag/cohort-23-4-cmpi) - [Cohort 24-1](https://www.third-derivative.org/portfolio/tag/cohort-24-1) - [Cohort 24-2](https://www.third-derivative.org/portfolio/tag/cohort-24-2) - [Cohort 25-1](https://www.third-derivative.org/portfolio/tag/cohort-25-1) - [Cohort 25-2 (Industrial Innovation Cohorts)](https://www.third-derivative.org/portfolio/tag/cohort-25-2) - [Cohort 25-3](https://www.third-derivative.org/portfolio/tag/cohort-25-3) - [Future Industries Partnership](https://www.third-derivative.org/portfolio/tag/future-industries-partnership) - [Cohort 26-1](https://www.third-derivative.org/portfolio/tag/cohort-26-1) ##### Filter by Topic Ag and Land Use agriculture Ammonia Batteries Biofuels / Synfuels / Chemicals Building Construction Building Heat Building Software Buildings Buildings (cooling / heating / envelopes) Buildings (lighting / appliances) Buildings - Enabling Software Carbon & Methane Management Carbon Capture and Utilization Carbon Markets Clean Fuels Cold Chain DAC Electric Mobility Electricity Electricity - Enabling Software Electricity - Financing/Project development Electricity - Geothermal Electricity - Long Duration Electricity Storage Electricity - Nuclear Power Electricity - Retail Energy Storage Electricity - Solar Power Electricity Software Enabling Software Energy Access EV Charging Infrastructure EV Critical Components Financing and Project Development Fugitive Emissions Future Industries Partnership Hydrogen Industrial Heating Industry Industry - Ammonia/Fertilizer Industry - Battery Manufacturing Industry - Biofuels Industry - Cement Industry - Chemicals Industry - E-Fuels Industry - Mining Industry - Steel Industry - Waste Heat Recovery industry- Hydrogen Long-duration Storage Low Carbon Industrial Materials Low Carbon Materials Negative Emissions Negative Emissions - DAC Negative Emissions - Ocean CDR Other Power Electronics and Hardware Renewable & power Generation Renewable Energy Renewable Generation Renewable Process Heat Stationary Energy Storage Thermal Energy Storage Transportation Transportation - Logistics Services Vehicle Efficiency Waste ##### Filter by Cohort Cohort 22-1 Cohort 22-2 Cohort 22-3 (CDR) Cohort 23-1 Cohort 23-2 Cohort 23-3 (FGC 2) Cohort 23-4 CMPI Cohort 24-1 Cohort 24-2 Cohort 25-1 Cohort 25-2 Cohort 25-3 Cohort 25-4 Cohort 26-1 Cohort 417 Cohort 419 [![](https://www.third-derivative.org/hubfs/airhive-logo.png)](https://www.third-derivative.org/portfolio/airhive) ## [Airhive](https://www.third-derivative.org/portfolio/airhive) Building a direct air capture (DAC) technology that combines the proven industrial process of fluidization with a novel geochemical sorbent, delivering accelerated CO2 removal and providing a rapid path to scaling. [Read More](https://www.third-derivative.org/portfolio/airhive) [![](https://www.third-derivative.org/hubfs/cella-logo.png)](https://www.third-derivative.org/portfolio/cella) ## [Cella](https://www.third-derivative.org/portfolio/cella) Expanding the range of geologies suitable for carbon removal and making carbon mineralization–the natural process for turning carbon into rock–into the most efficient way to permanently remove CO2. [Read More](https://www.third-derivative.org/portfolio/cella) [![](https://www.third-derivative.org/hubfs/edac-labs-logo.png)](https://www.third-derivative.org/portfolio/edac-labs) ## [EDAC Labs](https://www.third-derivative.org/portfolio/edac-labs) Developing a new class of electrochemistry systems that provide low-energy synthesis of acid and base for decarbonization applications. [Read More](https://www.third-derivative.org/portfolio/edac-labs) [![](https://www.third-derivative.org/hubfs/gct-logo.png)](https://www.third-derivative.org/portfolio/greenlyte-carbon-technologies) ## [Greenlyte Carbon Technologies](https://www.third-derivative.org/portfolio/greenlyte-carbon-technologies) Developing a low-energy direct air capture process that captures CO2 from the air, while producing hydrogen as a by-product. [Read More](https://www.third-derivative.org/portfolio/greenlyte-carbon-technologies) [![](https://www.third-derivative.org/hubfs/repair-co2-capture-logo.png)](https://www.third-derivative.org/portfolio/repair) ## [RepAir](https://www.third-derivative.org/portfolio/repair) Developing a novel electrochemical cell that separates CO2 from the air in a highly efficient and cost-effective process that operates at ambient temperature solely by renewable electricity. [Read More](https://www.third-derivative.org/portfolio/repair) [![](https://www.third-derivative.org/hubfs/rewind-logo.png)](https://www.third-derivative.org/portfolio/rewind) ## [Rewind](https://www.third-derivative.org/portfolio/rewind) Enabling a nature-based, permanent carbon removal solution that is affordable and scalable within this decade. [Read More](https://www.third-derivative.org/portfolio/rewind) [![](https://www.third-derivative.org/hubfs/travertine-logo.png)](https://www.third-derivative.org/portfolio/travertine) ## [Travertine](https://www.third-derivative.org/portfolio/travertine) Recycling waste from mining and fertilizer production for permanent carbon dioxide removal and chemical production. [Read More](https://www.third-derivative.org/portfolio/travertine) APPLY TODAY: ### Accelerate your success and speed to market with us We’re here to help you bridge critical finance and resource gaps by uniting and aligning the world’s most promising climate tech startups—like you—with D3’s network of committed investors, corporate partners, market experts, and mentors. 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