Top 32 Green Energy startups in New York
Apr 14, 2026
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28
1
Funding: $1.8B
energyRe is at the forefront of North America's energy transition. Building and delivering reliable clean power directly to where people live is not only our opportunity—it is our responsibility.
energyRe is at the forefront of North America's energy transition. Building and delivering reliable clean power directly to where people live is not only our opportunity—it is our responsibility.
2
Funding: $654.2M
NineDot Energy creates innovative energy solutions that make the urban grid cleaner, more resilient and less costly. It wants to turn underused properties into community battery-farm projects.NineDot Energy is building and operating community-scale battery energy storage systems (BESS) in the New York City metropolitan area. With sites in the Bronx, Brooklyn, Queens, and Staten Island, as well as Westchester County and Long Island, NineDot Energy is helping make our local grid cleaner, more resilient, equitable and affordable. The company plans to develop and build more than 400 megawatts (MW) of clean energy systems by the end of 2026, strengthening local grid infrastructure and providing clean, reliable, and resilient power to tens of thousands of New York City homes and businesses, supporting New York State's mission to achieve 100% clean energy by 2040.
NineDot Energy creates innovative energy solutions that make the urban grid cleaner, more resilient and less costly. It wants to turn underused properties into community battery-farm projects.NineDot Energy is building and operating community-scale battery energy storage systems (BESS) in the New York City metropolitan area. With sites in the Bronx, Brooklyn, Queens, and Staten Island, as well as Westchester County and Long Island, NineDot Energy is helping make our local grid cleaner, more resilient, equitable and affordable. The company plans to develop and build more than 400 megawatts (MW) of clean energy systems by the end of 2026, strengthening local grid infrastructure and providing clean, reliable, and resilient power to tens of thousands of New York City homes and businesses, supporting New York State's mission to achieve 100% clean energy by 2040.
3
Funding: $355.3M
Amogy builds an innovative clean energy system using ammonia as a renewable fuel
Amogy builds an innovative clean energy system using ammonia as a renewable fuel
4
Funding: $266.6M
BlocPower is offering smart, all electric heating, cooling, and hot water systems to building owners for no money down.
BlocPower is offering smart, all electric heating, cooling, and hot water systems to building owners for no money down.
5
Funding: $174.5M
Dandelion is an Alphabet spinout that develops geothermal heating, air-conditioning and cooling systems
Dandelion is an Alphabet spinout that develops geothermal heating, air-conditioning and cooling systems
6
Funding: $108.1M
Air Company converts carbon dioxide into products such as perfume, vodka, hand sanitizer, and ethanol-based aviation fuel. The company develops and licenses catalytic process technologies that enable the production of fuels and chemicals closer to their use. It's flagship product is sustainable aviation fuel AIRMADE SAF. AIRCO designs, manufactures, and scales physical production systems that transform synthetic fuels and chemical processes into operational infrastructure. These systems are deployed as modular or large-scale assets and are designed to operate in environments where uninterrupted fuel supply, availability, and reliability cannot be guaranteed.
Air Company converts carbon dioxide into products such as perfume, vodka, hand sanitizer, and ethanol-based aviation fuel. The company develops and licenses catalytic process technologies that enable the production of fuels and chemicals closer to their use. It's flagship product is sustainable aviation fuel AIRMADE SAF. AIRCO designs, manufactures, and scales physical production systems that transform synthetic fuels and chemical processes into operational infrastructure. These systems are deployed as modular or large-scale assets and are designed to operate in environments where uninterrupted fuel supply, availability, and reliability cannot be guaranteed.
7
Funding: $108.1M
Air Company is a carbon utilization company creating consumer and industrial products from carbon dioxide (CO2).
Air Company is a carbon utilization company creating consumer and industrial products from carbon dioxide (CO2).
8
Funding: $100.5M
David Energy looks to transform every building into an energy retailer that helps customers get more value out of their solar and storage systems.
David Energy looks to transform every building into an energy retailer that helps customers get more value out of their solar and storage systems.
9
Funding: $97.5M
Sealed covers the upfront costs to install energy-saving upgrades like insulation, smart tech, and HVAC to make your house feel like new.
Sealed covers the upfront costs to install energy-saving upgrades like insulation, smart tech, and HVAC to make your house feel like new.
10
Funding: $77.1M
Crux is building software to help energy, manufacturing and critical minerals projects fund their work
Crux is building software to help energy, manufacturing and critical minerals projects fund their work
11
Funding: $46.5M
Andium is an Industrial Internet of Things (IIoT) company that transforms wellsite management for the oil and gas industry with a a centralized and optimized operations platform for large energy companies.
Andium is an Industrial Internet of Things (IIoT) company that transforms wellsite management for the oil and gas industry with a a centralized and optimized operations platform for large energy companies.
12
Funding: $35.9M
Radiator Labs invented Cozy - a wireless, low-cost and easily installed retrofit that drops on top of steam heat radiators, providing a solution to the chronic problem of uneven heating in apartment buildings. Installation throughout a building can save up to 45 percent in heating costs and reduce GHG emissions by an average of 25 percent.
Radiator Labs invented Cozy - a wireless, low-cost and easily installed retrofit that drops on top of steam heat radiators, providing a solution to the chronic problem of uneven heating in apartment buildings. Installation throughout a building can save up to 45 percent in heating costs and reduce GHG emissions by an average of 25 percent.
13
Funding: $33.1M
EnergyHub is the consumer face of the Smart Grid, helping home owners reduce energy consumption and save money. EnergyHub produces smart, simple, and cost-effective energy management tools that strengthen the relationship between consumers and utilities and solve the energy problems of today and tomorrow.
EnergyHub is the consumer face of the Smart Grid, helping home owners reduce energy consumption and save money. EnergyHub produces smart, simple, and cost-effective energy management tools that strengthen the relationship between consumers and utilities and solve the energy problems of today and tomorrow.
14
Funding: $27.7M
GridPlus allows consumers to cut out the energy retailer and buy energy directly from producers via an Ethereum-powered blockchain network, cutting and managing energy usage.
GridPlus allows consumers to cut out the energy retailer and buy energy directly from producers via an Ethereum-powered blockchain network, cutting and managing energy usage.
15
Funding: $16.8M
LO3 Energy is developing blockchain based innovations to revolutionize how energy can be generated, stored, bought, sold and used, all at the local level.
LO3 Energy is developing blockchain based innovations to revolutionize how energy can be generated, stored, bought, sold and used, all at the local level.
16
Funding: $16.6M
WattBuy aims to give households a simple platform to shop for an electricity provider in states where that is an option. Users are able to upload their electricity usage and compare available plans to save money or buy electricity from a solar or wind energy provider.
WattBuy aims to give households a simple platform to shop for an electricity provider in states where that is an option. Users are able to upload their electricity usage and compare available plans to save money or buy electricity from a solar or wind energy provider.
18
Funding: $15.5M
Flipturn engages in combat climate change by accelerating transportation electrification.
Flipturn engages in combat climate change by accelerating transportation electrification.
19
Funding: $13.8M
Paces is a data insight platform for green infrastructure developers, operators, and investors to build more projects.
Paces is a data insight platform for green infrastructure developers, operators, and investors to build more projects.
20
Funding: $11M
itselectric is electric vehicle charging purpose-built for drivers who park their cars on city streets.
itselectric is electric vehicle charging purpose-built for drivers who park their cars on city streets.
21
Funding: $10M
Synop helps turn electric school buses into battery backups for a stressed grid via AI-based, single-platform management service
Synop helps turn electric school buses into battery backups for a stressed grid via AI-based, single-platform management service
22
Funding: $9.9M
Voltpost is a hardware-as-a-service company that transforms lampposts into smart electric vehicle charging stations.
Voltpost is a hardware-as-a-service company that transforms lampposts into smart electric vehicle charging stations.
23
Funding: $9.3M
Infinite Machine is to create the world's most captivating non-auto vehicles.
Infinite Machine is to create the world's most captivating non-auto vehicles.
26
Funding: $5M
Charge CCCV is an intellectual property company that specializes in Lithium-Ion battery composition and manufacture.
Charge CCCV is an intellectual property company that specializes in Lithium-Ion battery composition and manufacture.
27
Funding: $4.5M
Verdant Power systems generate clean energy from the currents of tides, rivers, and canals.
Verdant Power systems generate clean energy from the currents of tides, rivers, and canals.
28
Funding: $3.9M
Flower Turbines develops small vertical axis wind turbines that produce low noise and are cost-effective.
Flower Turbines develops small vertical axis wind turbines that produce low noise and are cost-effective.
29
Elysium Industries develops molten chloride salt fast reactors. This reactor is capable of providing base-load and clean power while addressing the current issues in the nuclear power industry.
30
ZrO Waste Group is in the process of developing a technology that will help customers convert waste into usable energy in the forms of heating, cooling, refrigeration, hot water and electricity
31
Cadence OneFive is a SaaS platform that makes climate-responsive construction easy for multifamily, hotel, student, and senior housing.
32
Hydronic Shell Technologies provides HVAC and facade system to construction industry that enable energy retrofits.
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