Helping entrepreneursTransformindustry

Greentown member working in a wet lab
Greentown community members collaborating
Greentown member pipetting in a lab
Greentown members at work in the incubator
[ 01 ]Who We Are

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.

Transforming the systems that power, move, feed, and connect the world is the work of our time, and startups hold the key.

Our Vision

Greentown is a 501(c)(3) non-profit organization

[ 03 ]Our Startups

Our Member Companies

View All Startups
Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

SBD Technologies logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

Terralytiq logo

Terralytiq

Manufacturing & Processing

Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon

AmHyTech logo

AmHyTech

Energy & Power

Ammonia infrastructure layer, enabling safe and practical liquid ammonia handling at ambient conditions

SkyH2O logo

SkyH2O

Food, Water, & Land

Atmospheric water generation for commercial and government projects

Conduit Tech logo

Conduit Tech

Infrastructure & Construction

Supporting HVAC contractors through design, sales, and installation

Simlionics logo

Simlionics

Energy & Power

Physics-aware, advanced AI battery modeling and intelligence for EV and energy-storage systems

Licube logo

Licube

Manufacturing & Processing

Sustainable lithium recovery through electrodialysis

Ivys Energy Solutions logo

Ivys Energy Solutions

Energy & Power

On-site hydrogen-generation and -dispensing appliance that uses water and electricity to make fuel-cell-grade hydrogen

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

Infinite Foundry logo

Infinite Foundry

Manufacturing & Processing

Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability

3D Architech, Inc. logo

3D Architech, Inc.

Manufacturing & Processing

Ultra-fine and gel-based metal manufacturing, creating high-efficiency microstructures for cooling and clean energy

XTPL logo

XTPL

Manufacturing & Processing

Additive manufacturing technology for ultra-precise printing of nanomaterials

NewGenium logo

NewGenium

Energy & Power

Advanced brine-to-battery grade LFP technology

Priority Investor Loans logo

Priority Investor Loans

Infrastructure & Construction

Simplified loan programs to fund real estate investors nationwide with income-producing properties

MCatalysis logo

MCatalysis

Manufacturing & Processing

Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology

Thiozen logo

Thiozen

Manufacturing & Processing

Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen

Dottir Labs logo

Dottir Labs

Food, Water, & Land

Sensor technology that provides real-time, detailed chemical analysis of water

REON Technology logo

REON Technology

Energy & Power

AI-driven optimization of systems through tailored power management of batteries and PV panels for energy storage

Torres Orbital Mining Inc (TOM) logo

Torres Orbital Mining Inc (TOM)

Infrastructure & Construction

Autonomous lunar excavation systems for dust-free regolith mining and space operations

Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

SBD Technologies logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

Terralytiq logo

Terralytiq

Manufacturing & Processing

Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon

AmHyTech logo

AmHyTech

Energy & Power

Ammonia infrastructure layer, enabling safe and practical liquid ammonia handling at ambient conditions

SkyH2O logo

SkyH2O

Food, Water, & Land

Atmospheric water generation for commercial and government projects

Conduit Tech logo

Conduit Tech

Infrastructure & Construction

Supporting HVAC contractors through design, sales, and installation

Simlionics logo

Simlionics

Energy & Power

Physics-aware, advanced AI battery modeling and intelligence for EV and energy-storage systems

Licube logo

Licube

Manufacturing & Processing

Sustainable lithium recovery through electrodialysis

Ivys Energy Solutions logo

Ivys Energy Solutions

Energy & Power

On-site hydrogen-generation and -dispensing appliance that uses water and electricity to make fuel-cell-grade hydrogen

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

Infinite Foundry logo

Infinite Foundry

Manufacturing & Processing

Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability

3D Architech, Inc. logo

3D Architech, Inc.

Manufacturing & Processing

Ultra-fine and gel-based metal manufacturing, creating high-efficiency microstructures for cooling and clean energy

XTPL logo

XTPL

Manufacturing & Processing

Additive manufacturing technology for ultra-precise printing of nanomaterials

NewGenium logo

NewGenium

Energy & Power

Advanced brine-to-battery grade LFP technology

Priority Investor Loans logo

Priority Investor Loans

Infrastructure & Construction

Simplified loan programs to fund real estate investors nationwide with income-producing properties

MCatalysis logo

MCatalysis

Manufacturing & Processing

Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology

Thiozen logo

Thiozen

Manufacturing & Processing

Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen

Dottir Labs logo

Dottir Labs

Food, Water, & Land

Sensor technology that provides real-time, detailed chemical analysis of water

REON Technology logo

REON Technology

Energy & Power

AI-driven optimization of systems through tailored power management of batteries and PV panels for energy storage

Torres Orbital Mining Inc (TOM) logo

Torres Orbital Mining Inc (TOM)

Infrastructure & Construction

Autonomous lunar excavation systems for dust-free regolith mining and space operations

Respire Energy logo

Respire Energy

Energy & Power

Safe, low-cost, and long-duration metal-air battery designed for microgrids

Daniel Consulting Group, LLC logo

Daniel Consulting Group, LLC

Energy & Power

Helping researchers improve battery and cell testing and providing due diligence for potential investors

Capital Energy logo

Capital Energy

Energy & Power

Helping climatetech companies translate complex work into compelling brands

Powerhouse Ventures logo

Powerhouse Ventures

Infrastructure & Construction

Investing in software to advance clean energy, mobility, and industry

ETAK logo

ETAK

ETAK transforms waste into clean energy. Our modular technology converts unsorted municipal and industrial waste into high-calorific gas, offering a decentralized, 24/7 alternative to fossil fuels and traditional incineration.

Boxes logo

Boxes

Manufacturing & Processing

Smart, affordable, and sustainable retail combining the physical and digital worlds

AMPeers logo

AMPeers

Energy & Power

Advanced MOCVD resulting in high-temp superconductors with higher performance, faster output, and lower cost

Alma Energy logo

Alma Energy

Energy & Power

Geothermal exploration to deliver scaled renewable energy production at economic levels

Boot Box Labs logo

Boot Box Labs

Energy & Power

Compact, refrigerant-free thermoelectric heat pump for quiet, efficient, climate-neutral HVAC

DrinKicks logo

DrinKicks

Food, Water, & Land

Repurposing food waste and recycled materials into shoes

PlaSene logo

PlaSene

Manufacturing & Processing

Converting plastic waste into liquid fuel and low-carbon hydrogen

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

Coflux Purification, Inc logo

Coflux Purification, Inc

Food, Water, & Land

A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams

SUPERGirls Shine Foundation logo

SUPERGirls Shine Foundation

Energy & Power

Developing underserved girls in STEM to support equity in the emerging workforce

Reframe Systems logo

Reframe Systems

Infrastructure & Construction

Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Steven Winter Associates, Inc. logo

Steven Winter Associates, Inc.

Infrastructure & Construction

Research, consulting, and advisory services to improve commercial, residential, and multifamily built environments

Kanin Energy logo

Kanin Energy

Energy & Power

Monetizing industrial waste heat with reduced deployment risk via third-party financing

Studio 3e8 logo

Studio 3e8

Manufacturing & Processing

Lightspeed metal 3D printing, making professional-grade fabrication affordable, compact, and easy to use

InnoEnergy (Member Account) logo

InnoEnergy (Member Account)

Energy & Power

Industrializing cleantech innovation to enable and grow a global net-zero economy

Onboard Data logo

Onboard Data

Infrastructure & Construction

Onboard — offers software analytics for HVAC service providers.

Respire Energy logo

Respire Energy

Energy & Power

Safe, low-cost, and long-duration metal-air battery designed for microgrids

Daniel Consulting Group, LLC logo

Daniel Consulting Group, LLC

Energy & Power

Helping researchers improve battery and cell testing and providing due diligence for potential investors

Capital Energy logo

Capital Energy

Energy & Power

Helping climatetech companies translate complex work into compelling brands

Powerhouse Ventures logo

Powerhouse Ventures

Infrastructure & Construction

Investing in software to advance clean energy, mobility, and industry

ETAK logo

ETAK

ETAK transforms waste into clean energy. Our modular technology converts unsorted municipal and industrial waste into high-calorific gas, offering a decentralized, 24/7 alternative to fossil fuels and traditional incineration.

Boxes logo

Boxes

Manufacturing & Processing

Smart, affordable, and sustainable retail combining the physical and digital worlds

AMPeers logo

AMPeers

Energy & Power

Advanced MOCVD resulting in high-temp superconductors with higher performance, faster output, and lower cost

Alma Energy logo

Alma Energy

Energy & Power

Geothermal exploration to deliver scaled renewable energy production at economic levels

Boot Box Labs logo

Boot Box Labs

Energy & Power

Compact, refrigerant-free thermoelectric heat pump for quiet, efficient, climate-neutral HVAC

DrinKicks logo

DrinKicks

Food, Water, & Land

Repurposing food waste and recycled materials into shoes

PlaSene logo

PlaSene

Manufacturing & Processing

Converting plastic waste into liquid fuel and low-carbon hydrogen

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

Coflux Purification, Inc logo

Coflux Purification, Inc

Food, Water, & Land

A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams

SUPERGirls Shine Foundation logo

SUPERGirls Shine Foundation

Energy & Power

Developing underserved girls in STEM to support equity in the emerging workforce

Reframe Systems logo

Reframe Systems

Infrastructure & Construction

Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Steven Winter Associates, Inc. logo

Steven Winter Associates, Inc.

Infrastructure & Construction

Research, consulting, and advisory services to improve commercial, residential, and multifamily built environments

Kanin Energy logo

Kanin Energy

Energy & Power

Monetizing industrial waste heat with reduced deployment risk via third-party financing

Studio 3e8 logo

Studio 3e8

Manufacturing & Processing

Lightspeed metal 3D printing, making professional-grade fabrication affordable, compact, and easy to use

InnoEnergy (Member Account) logo

InnoEnergy (Member Account)

Energy & Power

Industrializing cleantech innovation to enable and grow a global net-zero economy

Onboard Data logo

Onboard Data

Infrastructure & Construction

Onboard — offers software analytics for HVAC service providers.

[ 04 ]By The Numbers

Our Impact

Our members aren't just building better ways to operate; they're slashing emissions, boosting efficiency, and transforming how we use resources across the world. Now 15 years and counting, the impact speaks for itself.
Capital Mobilized

Our Startups Have Raised Over $0B

2011Now
Startups Supported

All-time

0

Currently home to

0

Global Footprint

0+

Countries Where
Startups Operate

Jobs Created

12,915 new jobs created by our members, and counting

Boston

7,492

Houston

5,423

[ 05 ]Our Partners

Where Industry Meets Innovation

Startups bring the breakthroughs. Corporate partners bring the scale, infrastructure, expertise, and capital to make them matter.

  • Amazon
  • Amrize
  • Aramco
  • BCG
  • Chevron
  • Dassault Systemes
  • Emerson
  • Enel
  • Equinor
  • Foley Hoag
  • Fortescue
  • GeSI
  • GE Vernova
  • Microsoft
  • OnTerris (fka Montrose)
  • Saint-Gobain
  • Shell
  • TotalEnergies
  • Vinson & Elkins
  • Woodside Energy
For Startups

Apply for Membership

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.

Greentown member prototyping hardware in the lab
For Partners
Greentown partners networking at an event

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.

Explore Partnership
Events
Speaker presenting on stage at a Greentown event

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.

View Calendar
Programs
Two Greentown program participants in the lab

Learn About our Programs

In addition to our Boston and Houston incubators, Greentown runs programs designed to address critical challenges in the climatetech ecosystem.

Explore Programs