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Greentown Labs

North America, Massachusetts, United States, Somerville

Description

Greentown Labs, established in 2011, stands as the largest cleantech incubator in the United States, dedicated to fostering innovation in climate and energy technologies. Headquartered in Somerville, Massachusetts, with a significant second campus in Houston, Texas, the organization provides a comprehensive ecosystem for startups. This includes over 100,000 square feet of shared lab and office space, state-of-the-art prototyping facilities, and a vibrant community designed to accelerate the development of groundbreaking solutions.

Greentown Labs' primary function is to equip entrepreneurs with the critical resources, mentorship, and strategic connections needed to scale their ventures. While it does not operate as a direct equity investor by issuing "cheques" to startups, it plays a pivotal role in connecting its member companies with a vast network of venture capital firms, corporate partners, and grant opportunities. This facilitative approach helps startups secure external funding and strategic partnerships.

Since its inception, Greentown Labs has supported over 500 startups, which have collectively gone on to raise more than $5.5 billion in capital from various external sources. The incubator's model focuses on providing an environment where cleantech companies can rapidly develop and commercialize their technologies, ultimately contributing to a more sustainable future. Its impact is measured not by its own direct investments, but by the success and funding secured by the innovative companies it nurtures.

Investor Profile

Greentown Labs has backed more than 41 startups, with 2 new investments in the last 12 months alone. The firm has led 39 rounds, about 95% of its total and boasts 1 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Non Equity Assistance, Grant, Pre Seed rounds (top funding stages).
  • Majority of deals are located in United States, Canada, The Netherlands.
  • Strong thematic focus on Energy, Renewable Energy, Sustainability.
  • Led 2 rounds in the past year.

Stage Focus

  • Non Equity Assistance (90%)
  • Grant (7%)
  • Pre Seed (2%)

Country Focus

  • United States (83%)
  • Canada (7%)
  • The Netherlands (2%)
  • Denmark (2%)
  • Australia (2%)

Industry Focus

  • Energy
  • Renewable Energy
  • Sustainability
  • Oil And Gas
  • Cleantech
  • Manufacturing
  • Solar
  • Information Technology
  • Environmental Engineering
  • Water
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Greentown Labs frequently co-invest with?

HAX
North America, California, United States, San Francisco
Co-Investments: 1
Space Capital
North America, New York, United States, New York
Co-Investments: 1
SOSV
North America, New Jersey, United States, Princeton
Co-Investments: 1
Ubiquity Ventures
North America, California, United States, Palo Alto
Co-Investments: 1
Massachusetts Institute of Technology
North America, Massachusetts, United States, Cambridge
Co-Investments: 1
The E14 Fund
North America, Massachusetts, United States, Boston
Co-Investments: 1
Harvard University
North America, Massachusetts, United States, Cambridge
Co-Investments: 1

What are some of recent deals done by Greentown Labs?

Andros Innovations

Storrs Mansfield, Connecticut, United States

Andros Innovations manufactures reactors that reduce the cost and energy consumption of ammonia manufacturing.

Manufacturing
GrantFeb 25, 2025
Amount Raised: $25,000
BlueShift

Cambridge, Massachusetts, United States

BlueShift operates as an electrochemical climate tech innovator.

Assistive TechnologyMineralRecycling
Non Equity AssistanceDec 19, 2024
AtmoSpark

Houston, Texas, United States

AtmoSpark is an atmospheric water generation company.

Advanced MaterialsEnvironmental EngineeringHardwareWaterWater Purification
GrantFeb 29, 2024
Axis Sky Renewables

Houston, Texas, United States

Axis Sky Renewables uses a vertical-axis wind turbine without a tower.

Wind Energy
GrantFeb 28, 2024
Hempitecture

Ketchum, Idaho, United States

Hempitecture develops sustainable materials, equipment, and systems for constructing buildings.

Building MaterialConstructionGreen BuildingGreenTechManufacturingSustainability
Non Equity AssistanceJan 9, 2024
Carbon Upcycling

Calgary, Alberta, Canada

Carbon Upcycling is a carbontech company delivering technology to decarbonize hard-to-abate industries.

Advanced MaterialsBuilding MaterialCarbon CaptureCleanTechConstructionWaste Management
Non Equity AssistanceJan 9, 2024
ZS2 Technologies

Calgary, Alberta, Canada

ZS2 Technologies creates and produces its own line of advanced building technologies, including as prefabricated structural panels.

Building MaterialConstruction
Non Equity AssistanceJan 9, 2024
Puro Renewables

Miami Beach, Florida, United States

Puro Renewables upcycles biorenewable, carbon-negative, biowaste to dramatically reduce the environmental impact of plastics.

Carbon CaptureSustainabilityWaste Management
Non Equity AssistanceJan 9, 2024
Endeavor Composites

Knoxville, Tennessee, United States

Endeavor Composites provides a zero waste solution for fiber and composite manufacturers.

AerospaceIndustrial EngineeringMechanical Engineering
Non Equity AssistanceJan 9, 2024
Active Surfaces

Salem, Massachusetts, United States

Active Surfaces offers ultra-thin-film solar technology that can be applied to any surface.

ManufacturingRenewable EnergySolar
Non Equity AssistanceJan 9, 2024