Climate & Clean Energy Startups

Discover climate tech and sustainability startups tackling the biggest challenge of our generation. From clean energy to carbon removal and circular economy solutions, these founders combine impact with innovation.

29
Total Startups
17%
With Revenue
76%
Technical Founders
New York
Top City
Ben Wiggins

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Climate & Clean Energy Startups (29)

ReJoule

by Steven Chung

Launched

Signal Hill, California

Stage: SEED
CLEAN ENERGYCLIMATE ENERGY SUSTAINABILITY
HardwareServices

Multi-million dollar grid battery assets are underperforming and nobody knows why; 19% of grid batteries experience underperformance due to battery health. Existing metrics treat a system as a single...

Product BuiltRevenueTechnicalWebsiteLinkedIn

Enception EV

by Harunar (Prodhan) Rashid

Prototype

Jessore, Khulna

Stage: PRE SEED
CLEAN ENERGYFRONTIER TECHINTERNATIONAL EMERGING MARKETS
SubscriptionLicensing

Lightweight EVs face long charging times and high upfront battery cost, and competitors' swap systems are proprietary walled gardens.

Product BuiltTechnicalWebsite

Coflux Purification

by Alec Ajnsztajn

Prototype

Houston, TX

Stage: SEED
CLIMATE ENERGY SUSTAINABILITY
ServicesLicensing

PFAS forever chemicals do not break down, contaminate drinking water and build up in the body, causing cancer, birth defects, and heart and liver disease. Current solutions are expensive, energy...

Product BuiltTechnicalWebsite

VoltIQ

by Constantin Kotchoubey

Beta

New York, New York

Stage: PRE SEED
AI INFRASTRUCTURECLIMATE ENERGY SUSTAINABILITYENTERPRISE SAAS
SaaSSubscription

AI workloads are scheduled blindly as if power is free and clean; intraday price swings of 5-10x and carbon swings of 3-5x mean 30-50% of an AI data center energy bill is movable by flexibility.

Product BuiltRepeat FounderTechnicalWebsite

Lukera Energy

by Brian Worfolk

MVP

Carrboro, NC

Stage: PRE SEED
CLEAN ENERGY
HardwareTransactional

Large volumes of flared & vented methane; current methanol production is energy-intensive and costly; maritime decarbonization increases demand for low-carbon methanol.

Product BuiltRevenueTechnicalWebsiteLinkedIn

Torus Nuclear Inc.

by Jon Warner

Launched
Stage: SEED
CLIMATE ENERGY SUSTAINABILITY
ServicesAgency

Regulatory bottlenecks, talent shortages, vendor fragmentation, reputational risk in nuclear projects.

Product BuiltRepeat FounderTechnicalWebsiteLinkedIn

RKL Worlds

by Rohan Kumar Bhoi

MVP
Stage: PRE SEED
DTC BRANDSCLIMATE ENERGY SUSTAINABILITYCONSUMER
E-Commerce

Rural artisans face market barriers, low wages due to middlemen, and traditional leather is environmentally harmful. No large-scale plant-based luxury leather brand in India.

Product BuiltRepeat FounderWebsite

LoomLogic

by Daniel Cantando

MVP
Stage: PRE SEED
RECYCLING CIRCULAR ECONOMY
HardwareSaaS

Recyclers lack the knowledge and automation to capture value from the $250B resale market; rising labor costs are making manual sorting unsustainable.

Repeat FounderTechnicalWebsite

Dream Light Labs

by Kelano Henry

Prototype

New York, NY

Stage: SEED
CLIMATE ENERGY SUSTAINABILITYHEALTHCARE SAASIOT+1
SubscriptionTransactional

The proliferation of personal electronic devices and the limitations of grid-dependent charging and unreliable portable power solutions create persistent challenges for individuals and outdoor...

RevcoEnergy

by Kirtan Nagavarapu

Launched

Austin, TX

Stage: PRE SEED
CLEAN ENERGYCLIMATE ENERGY SUSTAINABILITY
ServicesHardware

Diesel generators power 90%+ of the $40B+ off-grid and temporary power market, but diesel is facing rising fuel costs, emissions regulations, noise restrictions and reliability issues.

Product BuiltRevenueTechnicalWebsite

Dugu Systems

by Adam Brenner

Los Angeles

CLIMATE ENERGY SUSTAINABILITYCLEAN ENERGYCARBON REMOVAL

With high pressures and temperatures, conventional turbines rely on complexities that introduce costs and challenges.

Sterling Origo Limited

by Vitalis Mukhebi

Beta

Nairobi, Kenya

Stage: PRE SEED
CLIMATE ENERGY SUSTAINABILITYCLEAN ENERGY
SubscriptionServices

Schools in Kenya face high and rising electricity costs, unreliable grid supply, and expensive diesel generator backups, leading to disrupted learning, ICT use, and school operations and ultimately...

Graphite Sigma

by Ihab Odeh

MVP
Stage: PRE SEED
RECYCLING CIRCULAR ECONOMYCLEAN ENERGYCLIMATE ENERGY SUSTAINABILITY
LicensingHardware

Battery-grade graphite demand is outpacing supply; recyclers have residual graphite that is underutilized or disposed at cost.

Repeat FounderTechnicalWebsite

Redewable

by Talor Byington

Idea

Texas

CLEAN ENERGYPROPTECH
Services

New data centers wait 5-7 years for grid power; the Texas grid queue is closed while tenants need power now.

Repeat FounderWebsite

NergalGroupLimited

by Gift Godwill

Launched

Nigeria, Bayelsa state

Stage: PRE SEED
INTERNATIONAL EMERGING MARKETSAFRICA FIRSTCLIMATE ENERGY SUSTAINABILITY+1
ServicesAgency

High-potential opportunities in emerging markets fail due to lack of structure, validation, technical due diligence, financial structuring, and scalable execution.

Phoenix Ebra

by Adam Meek

Prototype

Tallahassee, Florida

Stage: SERIES A
BIOTECHCLIMATE ENERGY SUSTAINABILITY
SaaSSubscription

Citrus growers face systemic yield decline due to Huanglongbing (HLB), an endemic bacterial infection spread by the Asian citrus psyllid. Traditional open-air mitigation is ineffective and the legacy...

Product BuiltRevenueRepeat FounderTechnicalWebsiteLinkedIn

Ionic Desalination, Inc.

by Michael Oster

Beta
Stage: SEED
CLIMATE ENERGY SUSTAINABILITYCLEAN ENERGYOPERATIONS INFRA
Usage-BasedLicensing

Global freshwater scarcity across agriculture, industry, and cities; reverse osmosis is expensive, energy-intensive, slow to permit, and environmentally challenging.

Product BuiltRepeat FounderTechnicalWebsite

Eqore

by Valeriia Tyshchenko

Somerville, MA

Stage: SEED
CLEAN ENERGY
Hardware

Industrial and commercial customers are hit by electricity costs that vary by the hour of the day; as the founder mentioned, companies went out of business because their electricity bill went through...

Tropicaura B.C.

by Babacar Niang

MVP

Dakar, Senegal

Stage: SEED
SUPPLY CHAIN TOOLSCLIMATE ENERGY SUSTAINABILITY
Services

Fragmented West African fresh-produce supply, post-harvest losses, phytosanitary risks, and lack of export-grade infrastructure

Product BuiltWebsiteLinkedIn

Ecobrewco

by Brian Henderson

Prototype

Alabama

Stage: SEED
CARBON REMOVALCLIMATE ENERGY SUSTAINABILITYRECYCLING CIRCULAR ECONOMY
Licensing

Industries vent usable CO2 from fermentation and then pay to truck more in, while CO2 supply tightens and prices rise.

Product BuiltTechnicalWebsite

Victory to Mankind International

by Godwin Grant Oyintey

Idea

Santrokofi-Benua, Oti Region

Stage: PRE SEED
PROPTECHAGRITECHCLEAN ENERGY+1
ServicesSaaS

Growing demand for quality, affordable, eco-friendly student and worker accommodation in Ghana.

Repeat FounderTechnicalWebsiteLinkedIn

MartGummi

by Artjoms Martjanovs

MVP

Tashkent, Seed

Stage: SEED
RECYCLING CIRCULAR ECONOMY
Transactional

Large volumes of end-of-life tires in Uzbekistan with <10% recycling rate

Product BuiltWebsiteLinkedIn

RBIT

by Addison Houston

Launched
Stage: SEED
CLIMATE ENERGY SUSTAINABILITY
TransactionalServices

Post-ITC gap in affordable residential solar adoption due to phasing out of federal tax credits.

Product BuiltRevenueTechnicalWebsiteLinkedIn

RBITFinancial

by AddisonHouston

Launched
Stage: SEED
CLEAN ENERGYPROPTECHVERTICAL SAAS
SaaSTransactional

The deck identifies the problem of high costs in housing and energy without financial upside for renters and homeowners, and the challenges landlords face with leasing and turnover.

Rothalion

by Kevin Boes

Prototype
Stage: ACCELERATOR INCUBATOR
CLIMATE ENERGY SUSTAINABILITYCLEAN ENERGY
HardwareServices

Owners/operators of MW-scale gas turbines (e.g., GE Frame 5, Siemens SGT-400) need more megawatts and efficiency from existing assets; current systems face material/supply constraints and high...

TechnicalWebsite

PerezAGR

by Yorvit Perez

MVP

Evans, GA

Stage: PRE SEED
CLIMATE ENERGY SUSTAINABILITY
TransactionalServices

Centralized supply chains degrade food quality and urban dining relies on inflammatory ingredients, leaving health-conscious consumers with limited clean choices.

TechnicalWebsite

Landing Aerial Network Australia (LANA)

by Georgia Potgieter

Prototype

NSW

Stage: SEED
AEROSPACEOPERATIONS INFRALOGISTICS AND SHIPPING+1
SaaSServices

Lack of dedicated landing infrastructure, certified charging/power systems, and a cohesive national network for eVTOL and commercial drone operations in Australia.

Repeat FounderTechnicalLinkedIn

Macrotier Restoration Holdings Corp.

by Oscar Smith

Prototype
Stage: SEED
CLIMATE ENERGY SUSTAINABILITYCLEAN ENERGYIOT
HardwareServices

Buildings and cities overlook the clean power potential in existing water systems. There is a need for decentralized, always-on clean energy to reduce fossil fuel dependence and costs.

Product BuiltTechnicalWebsite

Totex Energy

by Berlin Raj

Launched

Dallas, Texas

Stage: PRE SEED
CLEAN ENERGYCLIMATE ENERGY SUSTAINABILITY
HardwareServices

Grid capacity and congestion; rising electrical loads from electrification and EVs; slow and expensive traditional grid upgrades.

Product BuiltRepeat FounderTechnicalWebsiteLinkedIn
Ben Wiggins

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About Climate & Clean Energy Startups

Our community includes 29 startups in the Climate & Clean Energy space. Funding stages span 13 at SEED, 12 at PRE SEED, 1 at SERIES A, 1 at ACCELERATOR INCUBATOR.

16 startups have built a working product. 5 are generating revenue. 76% have technical co-founders who can build and iterate on product.

Investors interested in Climate & Clean Energy can browse these startups and use our AI-powered matching to find companies that align with their investment thesis, stage preference, and check size.

Frequently Asked Questions

How many Climate & Clean Energy startups are in this directory?
We currently track 29 Climate & Clean Energy startups in our community. 16 have built a product, and 5 are generating revenue.
What percentage of Climate & Clean Energy startups have technical founders?
76% of Climate & Clean Energy startups in our directory have at least one technical co-founder, which is an important signal for investors evaluating a startup's ability to build and iterate on their product.
How can I invest in Climate & Clean Energy startups?
The Founders' Group connects investors with vetted Climate & Clean Energy startups. Our AI-powered matching algorithm considers sector focus, stage fit, check size, and thesis alignment. Browse our investor directory or contact us to learn more.
What makes a strong Climate & Clean Energy startup?
Top Climate & Clean Energy startups typically demonstrate deep domain expertise, a clear understanding of their target market, defensible technology or IP, and early traction with paying customers or engaged users. Strong unit economics and a realistic go-to-market strategy are also key differentiators.
Where are most Climate & Clean Energy startups located?
The highest concentration of Climate & Clean Energy startups in our community is in New York, Signal Hill, Jessore. However, we work with startups from across the US and internationally.

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Ben Wiggins

Ben Wiggins

7x Founder · 1 Exit · Experienced Angel Investor · CIO Family Office

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