Transforming industry faster
Transforming the systems that power, move, feed, and connect the world is the work of our time, and startups hold the key.
But breakthroughs don't scale in isolation.
They scale when entire ecosystems move together: founders, corporates, capital, policy, and communities, united by a shared purpose of propelling groundbreaking technologies to market, at the pace the world requires.
Ignition Packaging
About the Company Ignition Packaging is a biomaterials company developing scalable, cost-competitive alternatives to conventional petroleum-based foams. Ignition Packaging’s core technology transforms agricultural byproducts into a high-performance, biodegradable foam engineered […]
MagDrive Technologies Inc.
Manufacturing & Processing
Eliminating fugitive emissions and delivering zero-leak performance and durability
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
Upgraid RE
Infrastructure & Construction
AI and satellite data that diagnose buildings and run energy simulations, to produce ready-to-pitch upgrade proposals
Thiozen
Manufacturing & Processing
Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen
Elemental Advanced Materials
Manufacturing & Processing
Graphene and hydrogen from mixed and contaminated waste plastics and other organic materials
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
Universal Matter Inc.
Manufacturing & Processing
Producing graphene from carbon waste streams
Helium Capital
Infrastructure & Construction
Supporting growing small businesses
MoveEV
Transportation & Logistics
Mitigating Scope 1 & 3 emissions for businesses while providing cost savings for employees
Orien Energy
Infrastructure & Construction
Sorption heat pump to recover waste heat from dryer exhaust
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
Keysight Technologies (Member Account)
Manufacturing & Processing
World’s leading electronic measurement company
Fluor Enterprises, Inc.
Energy & Power
Leading global engineering, procurement and construction (EPC) company
Nominal
Manufacturing & Processing
Software that lets hardware teams test and iterate as fast as software teams
Emrod
Energy & Power
Sustainable power with long-range wireless power transfer technology
Glimpse Engineering
Manufacturing & Processing
Visualizing battery scans and continuously monitoring key battery-design features
TDS Select
Food, Water, & Land
Modular, scalable FCDI system capable of desalinating brackish water using low energy
Wootz
Manufacturing & Processing
Carbon nanotube supermaterials to replace or augment traditional metallic conductors
Ententia
Energy & Power
Trusted, scalable enterprise AI solutions that turn context into competitive advantage
Ignition Packaging
About the Company Ignition Packaging is a biomaterials company developing scalable, cost-competitive alternatives to conventional petroleum-based foams. Ignition Packaging’s core technology transforms agricultural byproducts into a high-performance, biodegradable foam engineered […]
MagDrive Technologies Inc.
Manufacturing & Processing
Eliminating fugitive emissions and delivering zero-leak performance and durability
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
Upgraid RE
Infrastructure & Construction
AI and satellite data that diagnose buildings and run energy simulations, to produce ready-to-pitch upgrade proposals
Thiozen
Manufacturing & Processing
Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen
Elemental Advanced Materials
Manufacturing & Processing
Graphene and hydrogen from mixed and contaminated waste plastics and other organic materials
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
Universal Matter Inc.
Manufacturing & Processing
Producing graphene from carbon waste streams
Helium Capital
Infrastructure & Construction
Supporting growing small businesses
MoveEV
Transportation & Logistics
Mitigating Scope 1 & 3 emissions for businesses while providing cost savings for employees
Orien Energy
Infrastructure & Construction
Sorption heat pump to recover waste heat from dryer exhaust
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
Keysight Technologies (Member Account)
Manufacturing & Processing
World’s leading electronic measurement company
Fluor Enterprises, Inc.
Energy & Power
Leading global engineering, procurement and construction (EPC) company
Nominal
Manufacturing & Processing
Software that lets hardware teams test and iterate as fast as software teams
Emrod
Energy & Power
Sustainable power with long-range wireless power transfer technology
Glimpse Engineering
Manufacturing & Processing
Visualizing battery scans and continuously monitoring key battery-design features
TDS Select
Food, Water, & Land
Modular, scalable FCDI system capable of desalinating brackish water using low energy
Wootz
Manufacturing & Processing
Carbon nanotube supermaterials to replace or augment traditional metallic conductors
Ententia
Energy & Power
Trusted, scalable enterprise AI solutions that turn context into competitive advantage
LOCOAL
Manufacturing & Processing
Turning waste into value, and producing clean energy, biofuels, and carbon credits
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Wellbore Consultants
Energy & Power
Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
Mars Materials
Manufacturing & Processing
Converting CO₂ and biomass into acrylonitrile
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
EnergyGigs
Food, Water, & Land
Talent and freelance platform for the energy industry
Electric Hydrogen
Energy & Power
Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen
Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity
Latitude Media
News, podcasts, market intelligence, and events for the climatetech industry
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
ClearTrace
Energy & Power
Product suite for traceable, end-to-end data management of electricity and certificate transactions
New Mantle Technologies
Energy & Power
Subsurface characterization with physics and AI
Elementium Materials
Energy & Power
Battery-electrolyte technology that unlocks affordable, lightweight, long-lasting, intrinsically safe batteries
Encore CO2
Manufacturing & Processing
Converting captured CO₂ into valuable industrial molecules
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
AMPeers
Energy & Power
Advanced MOCVD resulting in high-temp superconductors with higher performance, faster output, and lower cost
Solar Materials
Energy & Power
Recovered and recycled secondary solar panel materials
Eden GeoPower
Energy & Power
Electrical Reservoir Stimulation to enhance subsurface permeability
Nth Cycle
Manufacturing & Processing
Using electro-extraction to recover production-grade critical minerals from e-waste, low-grade ore, and mine tailings
LOCOAL
Manufacturing & Processing
Turning waste into value, and producing clean energy, biofuels, and carbon credits
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Wellbore Consultants
Energy & Power
Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
Mars Materials
Manufacturing & Processing
Converting CO₂ and biomass into acrylonitrile
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
EnergyGigs
Food, Water, & Land
Talent and freelance platform for the energy industry
Electric Hydrogen
Energy & Power
Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen
Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity
Latitude Media
News, podcasts, market intelligence, and events for the climatetech industry
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
ClearTrace
Energy & Power
Product suite for traceable, end-to-end data management of electricity and certificate transactions
New Mantle Technologies
Energy & Power
Subsurface characterization with physics and AI
Elementium Materials
Energy & Power
Battery-electrolyte technology that unlocks affordable, lightweight, long-lasting, intrinsically safe batteries
Encore CO2
Manufacturing & Processing
Converting captured CO₂ into valuable industrial molecules
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
AMPeers
Energy & Power
Advanced MOCVD resulting in high-temp superconductors with higher performance, faster output, and lower cost
Solar Materials
Energy & Power
Recovered and recycled secondary solar panel materials
Eden GeoPower
Energy & Power
Electrical Reservoir Stimulation to enhance subsurface permeability
Nth Cycle
Manufacturing & Processing
Using electro-extraction to recover production-grade critical minerals from e-waste, low-grade ore, and mine tailings
Our Startups Have Raised Over $0B
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12,915 new jobs created by our members, and counting
Boston
7,492
Houston
5,423
Startups bring the breakthroughs. Corporate partners bring the scale, infrastructure, expertise, and capital to make them matter.
Ready to take your technology to the next level? Join the world's largest community of climatetech and energy entrepreneurs and fast-track your speed to market.
Become a Partner
Access the most concentrated pipeline of vetted climatetech companies in North America. Partner on pilots, invest, or join as a corporate sponsor.
Get Involved
We pride ourselves on being a convener of the climatetech ecosystem. Join us at an upcoming event to explore all things climate action and collaboration.
Learn About our Programs
In addition to our Boston and Houston incubators, Greentown runs programs designed to address critical challenges in the climatetech ecosystem.