---
title: Startup Portfolio | Cohort 25-3
description: Cohort 25-3 | 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-25-3#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 25-3

## 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/aris-hydronics.png)](https://www.third-derivative.org/portfolio/aris-hydronics)

## [Aris Hydronics](https://www.third-derivative.org/portfolio/aris-hydronics)

Delivering fully integrated heating, cooling, and hot water systems that intelligently adapt to each building’s unique thermal needs.

[Read More](https://www.third-derivative.org/portfolio/aris-hydronics)

[![](https://www.third-derivative.org/hubfs/carbon-signal.png)](https://www.third-derivative.org/portfolio/carbon-signal)

## [Carbon Signal](https://www.third-derivative.org/portfolio/carbon-signal)

Accelerating building decarbonization with scalable, high-fidelity energy intelligence that cuts analysis time from months to minutes.

[Read More](https://www.third-derivative.org/portfolio/carbon-signal)

[![](https://www.third-derivative.org/hubfs/chemfinity.png)](https://www.third-derivative.org/portfolio/chemfinity-technologies)

## [ChemFinity Technologies](https://www.third-derivative.org/portfolio/chemfinity-technologies)

Creating new sorbent-based ways to efficiently refine over 20 critical minerals, projecting lower costs and 99% reductions in energy use and carbon emissions compared to traditional methods.

[Read More](https://www.third-derivative.org/portfolio/chemfinity-technologies)

[![](https://www.third-derivative.org/hubfs/dte-materials.png)](https://www.third-derivative.org/portfolio/dte-materials)

## [DTE Materials](https://www.third-derivative.org/portfolio/dte-materials)

Accelerating concrete decarbonization through low-cost, low-capex bioaggregate solutions that directly reduce emissions by ~40%.

[Read More](https://www.third-derivative.org/portfolio/dte-materials)

[![](https://www.third-derivative.org/hubfs/dynami-battery.png)](https://www.third-derivative.org/portfolio/dynami-battery)

## [Dynami Battery](https://www.third-derivative.org/portfolio/dynami-battery)

Enabling 5x faster charging and higher capacity batteries using patented microstructuring technology that enhances battery physics.

[Read More](https://www.third-derivative.org/portfolio/dynami-battery)

[![](https://www.third-derivative.org/hubfs/enkoat.png)](https://www.third-derivative.org/portfolio/enkoat)

## [EnKoat](https://www.third-derivative.org/portfolio/enkoat)

Transforming building envelopes with adaptive coatings that cut HVAC energy use by up to 30%, extend roof life, and reduce emissions across climates.

[Read More](https://www.third-derivative.org/portfolio/enkoat)

[![](https://www.third-derivative.org/hubfs/enzinc.png)](https://www.third-derivative.org/portfolio/enzinc)

## [Enzinc](https://www.third-derivative.org/portfolio/enzinc)

Delivering high performance, safe, recyclable, and cost effective energy storage globally using existing legacy lead-acid battery factories.

[Read More](https://www.third-derivative.org/portfolio/enzinc)

[![](https://www.third-derivative.org/hubfs/greengine.png)](https://www.third-derivative.org/portfolio/greengine-environmental-technologies)

## [Greengine Environmental Technologies](https://www.third-derivative.org/portfolio/greengine-environmental-technologies)

Decarbonizing global industries and institutions through low-cost, modular, scalable, and sustainable microalgae-based carbon capture technology.

[Read More](https://www.third-derivative.org/portfolio/greengine-environmental-technologies)

[![](https://www.third-derivative.org/hubfs/hydgen.png)](https://www.third-derivative.org/portfolio/hydgen)

## [HYDGEN](https://www.third-derivative.org/portfolio/hydgen)

Enabling industries to switch from fossil-derived hydrogen to on-site, zero-emission alternatives with faster deployment and lower cost.

[Read More](https://www.third-derivative.org/portfolio/hydgen)

[![](https://www.third-derivative.org/hubfs/mirico.png)](https://www.third-derivative.org/portfolio/mirico)

## [Mirico](https://www.third-derivative.org/portfolio/mirico)

Giving unprecedented insight into the "what, where, when and why" of greenhouse emissions from industrial infrastructure.

[Read More](https://www.third-derivative.org/portfolio/mirico)

[![](https://www.third-derivative.org/hubfs/nopo-nanotech.png)](https://www.third-derivative.org/portfolio/nopo-nanotechnologies)

## [NoPo Nanotechnologies](https://www.third-derivative.org/portfolio/nopo-nanotechnologies)

Enabling energy-efficiency in batteries, electronics, membranes, and polymers using single walled carbon nanotubes (SWCNTs), highly conductive materials with exceptional strength and thermal conductivity.

[Read More](https://www.third-derivative.org/portfolio/nopo-nanotechnologies)

[![](https://www.third-derivative.org/hubfs/ocean.png)](https://www.third-derivative.org/portfolio/ocean)

## [Ocean](https://www.third-derivative.org/portfolio/ocean)

Reinventing building materials with high-performance bamboo systems that cut emissions, preserve biodiversity, and scale sustainably around the world.

[Read More](https://www.third-derivative.org/portfolio/ocean)

[![](https://www.third-derivative.org/hubfs/oort-energy.png)](https://www.third-derivative.org/portfolio/oort-energy)

## [Oort Energy](https://www.third-derivative.org/portfolio/oort-energy)

Enabling scalable green hydrogen production for hard-to-decarbonize sectors like aviation and heavy industry using high-efficiency, low-cost proton exchange membrane (PEM) electrolysers.

[Read More](https://www.third-derivative.org/portfolio/oort-energy)

[![optimist logo](https://www.third-derivative.org/hubfs/optimist.svg)](https://www.third-derivative.org/portfolio/optimist)

## [Optimist](https://www.third-derivative.org/portfolio/optimist)

Scaling low‑emissions cooling globally by delivering modular, energy‑efficient AC systems engineered for affordability and high thermal performance.

[Read More](https://www.third-derivative.org/portfolio/optimist)

[![](https://www.third-derivative.org/hubfs/renkube.png)](https://www.third-derivative.org/portfolio/renkube)

## [Renkube](https://www.third-derivative.org/portfolio/renkube)

Offering a 40% increase in energy yield from Solar Panels at a 20% increase in capital cost, thereby offsetting 0.56 metric tons of CO2 emissions/GW/annum.

[Read More](https://www.third-derivative.org/portfolio/renkube)

[![](https://www.third-derivative.org/hubfs/rewind-turbine.png)](https://www.third-derivative.org/portfolio/rewind-turbine)

## [Rewind Turbine](https://www.third-derivative.org/portfolio/rewind-turbine)

Enabling fully recyclable, modular wind blades that cut costs, simplify logistics, and unlock new markets for sustainable, scalable wind energy

[Read More](https://www.third-derivative.org/portfolio/rewind-turbine)

[![](https://www.third-derivative.org/hubfs/torus-robotics.png)](https://www.third-derivative.org/portfolio/torus-robotics)

## [Torus Robotics](https://www.third-derivative.org/portfolio/torus-robotics)

Delivering ultra-efficient, compact axial flux motors and drives that drastically reduce energy use in industrial HVAC and mobility applications.

[Read More](https://www.third-derivative.org/portfolio/torus-robotics)

[![Zethos](https://www.third-derivative.org/hubfs/Zethos_web.png)](https://www.third-derivative.org/portfolio/zethos)

## [Zethos](https://www.third-derivative.org/portfolio/zethos)

Enabling net-zero critical minerals with a novel hydrogen-based metal refining process that slashes cost, energy use and carbon emissions without compromising performance.

[Read More](https://www.third-derivative.org/portfolio/zethos)

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.

[![Apply to Third Derivative](https://no-cache.hubspot.com/cta/default/7483280/19b13734-9935-421a-8626-687427fe800f.png)](https://cta-redirect.hubspot.com/cta/redirect/7483280/19b13734-9935-421a-8626-687427fe800f)

![logo-white](https://www.third-derivative.org/hs-fs/hubfs/Atomic_Third_Derivative/logos/logo-white.png?width=300&name=logo-white.png)

Founded by [RMI](https://rmi.org/) and [New Energy Nexus](https://www.newenergynexus.com/), Third Derivative (D3) is accelerating the rate of climate innovation through our inclusive ecosystem approach, which rapidly finds, funds, and scales climate tech globally.

#### Connect with us:

<https://twitter.com/Third_Deriv> <https://www.linkedin.com/company/third-deriv/> <https://newenergynexusnetwork.slack.com/join/shared_invite/zt-7cjoxxyf-QYn4y_ixtfMek3s~8WxQhA#/>

#### About

- [Story](https://www.third-derivative.org/about#story)
- [Team](https://www.third-derivative.org/team)
- [Careers](https://www.third-derivative.org/careers)

#### Insights & Events

- [Research & Insights](https://www.third-derivative.org/insights)

#### Contact

- [Contact Us](https://www.third-derivative.org/contact)
- [Media](https://www.third-derivative.org/press)

#### For Entrepreneurs

- [How to Apply](https://www.third-derivative.org/startup-application)
- [Eligibility & Selection](https://www.third-derivative.org/startups)

#### Partners

- [Investors](https://www.third-derivative.org/investors)
- [Corporates](https://www.third-derivative.org/corporates)
- [Mentors](https://www.third-derivative.org/mentors)
- [Refer a Startup](https://www.third-derivative.org/startup-referral)

#### SIGN UP FOR THE MONTHLY D3 NEWSLETTER

[Sign Up](https://rmi.tfaforms.net/100)

 Copyright 2026. Third Derivative. All Rights Reserved.

- [Privacy Policy](https://www.third-derivative.org/privacy-policy)