Helping climatetech startupsTransformindustry faster

ALLY Energy
Infrastructure & Construction
ALLY Energy — is an energy tech and human capital services company that offers packaged services and bespoke offerings such as talent engagement, culture development and design, recruitment training and coaching, and consulting.

Anzu Partners
Manufacturing & Processing

Axiom Optics
Manufacturing & Processing
Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.

Ecobrew
Food, Water, & Land
Recycling clean CO₂ at the source for a circular supply, local reuse, or sale

Boxes
Manufacturing & Processing
Smart, affordable, and sustainable retail combining the physical and digital worlds

SolBid
Energy & Power
SolBid — provides businesses with their unique software and services solution that empowers them to efficiently and effectively deploy clean solar energy resources.

Raise Green
Energy & Power
Raise Green — helps make it easy to start your own solar energy project or climate action company. Anyone can start a project on Raise Green and bring clean energy to their business or community.

Independence Coffee Company
Food, Water, & Land
Our new 100% Compostable Coffee Pods are made with no plastic. They are Fair Trade, Organic and are produced from the best coffee growing regions in the world. Our focus on reduced environmental impacts and 'give-backs' to great local and national causes runs in our DNA. We partner with large corporate, grocery and food service providers to not only distribute our products, but also educate consumers on the importance of sustainable cpg packaging for our earth's future.

NewGrid
Energy & Power
Software and services to enable system operators, utilities, and power market participants to reduce grid congestion

Synergetic LLC
Energy & Power
Synergetic — facilitates infrastructure solutions that unlock and unleash the power of renewables and eliminate or minimize obstacles to rapid renewable energy development and use in congested electricity markets.

Nexus Circular
Manufacturing & Processing

Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power

Arco Technologies Inc
Energy & Power
Arco Technologies Inc — has 23 years of experience in the electrochemistry industry, developing fuel cells and electrolyzers.

Diffraqtion
Manufacturing & Processing
Machine Vision at the Quantum Limit

Black Girls Do Engineer
Manufacturing & Processing
Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

GeoTeknica
Manufacturing & Processing

Upstream Tech
Energy & Power
Software that expands access to environmental data through remote monitoring and reporting for seasonal forecasts

Atlas Robotics
Transportation & Logistics

Deep Anchor Solutions
Infrastructure & Construction
Anchoring solutions for floating applications including energy, aquaculture, and large-scale infrastructure

FLUIDXLAB Americas Inc.
Manufacturing & Processing
AI-powered microfluidic tools that help control and improve fluid processes across many industries

ALLY Energy
Infrastructure & Construction
ALLY Energy — is an energy tech and human capital services company that offers packaged services and bespoke offerings such as talent engagement, culture development and design, recruitment training and coaching, and consulting.

Anzu Partners
Manufacturing & Processing

Axiom Optics
Manufacturing & Processing
Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.

Ecobrew
Food, Water, & Land
Recycling clean CO₂ at the source for a circular supply, local reuse, or sale

Boxes
Manufacturing & Processing
Smart, affordable, and sustainable retail combining the physical and digital worlds

SolBid
Energy & Power
SolBid — provides businesses with their unique software and services solution that empowers them to efficiently and effectively deploy clean solar energy resources.

Raise Green
Energy & Power
Raise Green — helps make it easy to start your own solar energy project or climate action company. Anyone can start a project on Raise Green and bring clean energy to their business or community.

Independence Coffee Company
Food, Water, & Land
Our new 100% Compostable Coffee Pods are made with no plastic. They are Fair Trade, Organic and are produced from the best coffee growing regions in the world. Our focus on reduced environmental impacts and 'give-backs' to great local and national causes runs in our DNA. We partner with large corporate, grocery and food service providers to not only distribute our products, but also educate consumers on the importance of sustainable cpg packaging for our earth's future.

NewGrid
Energy & Power
Software and services to enable system operators, utilities, and power market participants to reduce grid congestion

Synergetic LLC
Energy & Power
Synergetic — facilitates infrastructure solutions that unlock and unleash the power of renewables and eliminate or minimize obstacles to rapid renewable energy development and use in congested electricity markets.

Nexus Circular
Manufacturing & Processing

Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power

Arco Technologies Inc
Energy & Power
Arco Technologies Inc — has 23 years of experience in the electrochemistry industry, developing fuel cells and electrolyzers.

Diffraqtion
Manufacturing & Processing
Machine Vision at the Quantum Limit

Black Girls Do Engineer
Manufacturing & Processing
Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

GeoTeknica
Manufacturing & Processing

Upstream Tech
Energy & Power
Software that expands access to environmental data through remote monitoring and reporting for seasonal forecasts

Atlas Robotics
Transportation & Logistics

Deep Anchor Solutions
Infrastructure & Construction
Anchoring solutions for floating applications including energy, aquaculture, and large-scale infrastructure

FLUIDXLAB Americas Inc.
Manufacturing & Processing
AI-powered microfluidic tools that help control and improve fluid processes across many industries

Smart Resource Labs
Energy & Power
We make data easy

Geckskin
Manufacturing & Processing

Encore CO2
Manufacturing & Processing
Converting captured CO₂ into valuable industrial molecules

Turnover Labs
Manufacturing & Processing
Modular electrolyzers converting dirty onsite CO₂ into basic chemicals

Kauel
Energy & Power
Software that detects industrial threats to prevent environmental risks and catastrophes

Alloy Enterprises
Manufacturing & Processing
Alloy Enterprises — is developing a new manufacturing method to change the way the world makes aluminum parts.

Endeavor Composites
Manufacturing & Processing
Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry

Footprint

Ecolectro
Manufacturing & Processing

CarTwin
Transportation & Logistics
CarTwin is unlocking the value of automative data by creating an integrated data ecosystem to drive actionable insight and predictive analytics to address the industry’s most pressing challenges. Its digital twin technology enables a diverse set of automotive use cases that power new innovations by connecting physical and digital worlds providing real-time operational awareness of vehicle, component, and manufacturing performance.

XTPL
Manufacturing & Processing
Additive manufacturing technology for ultra-precise printing of nanomaterials

SteamIQ
Manufacturing & Processing

Aeromine Technologies, Inc.
Energy & Power
Bladeless, motionless wind turbines for the built environment

SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.

Micronic Technologies
Food, Water, & Land
Micronic Technologies — is a women co-founded and led, clean-tech company that is transforming industrial wastewater into high-value resources.

Reframe Systems
Infrastructure & Construction
Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals

ONEPREDICT
Manufacturing & Processing
Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries

BlueShift Carbon
Manufacturing & Processing
Electrochemical CO₂-removal solution that’s low-cost, energy-efficient, redox-based, and membrane-free

Studio 3e8
Manufacturing & Processing
Metal 3D printing in a desktop form factor.

Smart Resource Labs
Energy & Power
We make data easy

Geckskin
Manufacturing & Processing

Encore CO2
Manufacturing & Processing
Converting captured CO₂ into valuable industrial molecules

Turnover Labs
Manufacturing & Processing
Modular electrolyzers converting dirty onsite CO₂ into basic chemicals

Kauel
Energy & Power
Software that detects industrial threats to prevent environmental risks and catastrophes

Alloy Enterprises
Manufacturing & Processing
Alloy Enterprises — is developing a new manufacturing method to change the way the world makes aluminum parts.

Endeavor Composites
Manufacturing & Processing
Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry

Footprint

Ecolectro
Manufacturing & Processing

CarTwin
Transportation & Logistics
CarTwin is unlocking the value of automative data by creating an integrated data ecosystem to drive actionable insight and predictive analytics to address the industry’s most pressing challenges. Its digital twin technology enables a diverse set of automotive use cases that power new innovations by connecting physical and digital worlds providing real-time operational awareness of vehicle, component, and manufacturing performance.

XTPL
Manufacturing & Processing
Additive manufacturing technology for ultra-precise printing of nanomaterials

SteamIQ
Manufacturing & Processing

Aeromine Technologies, Inc.
Energy & Power
Bladeless, motionless wind turbines for the built environment

SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.

Micronic Technologies
Food, Water, & Land
Micronic Technologies — is a women co-founded and led, clean-tech company that is transforming industrial wastewater into high-value resources.

Reframe Systems
Infrastructure & Construction
Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals

ONEPREDICT
Manufacturing & Processing
Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries

BlueShift Carbon
Manufacturing & Processing
Electrochemical CO₂-removal solution that’s low-cost, energy-efficient, redox-based, and membrane-free

Studio 3e8
Manufacturing & Processing
Metal 3D printing in a desktop form factor.




The way the world makes energy, materials, and food is changing — and the next decade will decide whether that change makes life better: more energy with fewer emissions, more industry with cleaner air, more good jobs.
That future comes from entrepreneurs — the heroes who turn ideas into real products, real companies, and the jobs of the future. And the ones who make it are the ones with a community behind them.
For 15 years, Greentown has been that community — leaning in with the space, the people, the funding, and the first customers they need. Get behind the entrepreneurs building our future.
Our Startups Have Raised Over $0B
All-time
0
Currently home to
0
0+
Countries Where
Startups Operate
0
New Jobs Created by Our Members, and Counting
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.

Explore Investing
Tap into deal flow with the world’s largest community of climate and energy startups.






















