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Greentown Labs — Portfolio

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

44
Companies
$182.1M
Total invested
$4.2M
Avg. check
61
Industries
Manufacturing 6Energy 6Renewable Energy 5CleanTech 3Building Material 3Construction 3+55 more
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Portfolio companies

Showing 124 of 44
Applied Bioplastics
September 2024

Applied Bioplastics manufactures bioplastics in retail, packaging, and medical industries to improve plastic recycling.

Agriculture · AustinConvertible Note
Katz Water Technologies
August 2021

Katz Water Technologies purifies water using streamlined simplified equipment that utilizes waste energy.

CleanTech · Houston$750K Grant
Gaia AI
August 2024

Gaia AI uses LiDAR, cameras, and satellite imagery to collect data in forests.

Artificial Intelligence (AI) · Somerville$5.0M Seed
Dioxycle
July 2023

Dioxycle is develop electrolyser solutions for carbon dioxide emissions.

Environmental Engineering · Paris$17.0M Series A
Veloce Energy
April 2023

Veloce Energy innovates technology and financing models to reduce physical and financial barriers to EV Charging infrastructure deployment.

Charging Infrastructure · Los AngelesSeries A
Carbon Upcycling
April 2026

Carbon Upcycling develops technology to produce local, low-carbon cement materials from CO₂ emissions and industrial byproducts

Advanced Materials · Calgary$10.0M Debt Financing
REVOLUTION Turbine Technologies
April 2022

Clean energy, waste energy recovery

Energy · Houston$8K Grant
Trellis Air
March 2025

Trellis Air is making commercially viable membrane-based dehumidifiers.

Heating · Somerville$6.6M Seed
ClearTrace
February 2023

ClearTrace is a software company that provides automated energy and carbon accounting for investors, enterprises, and real estate owners.

Energy · AustinNon-equity Assistance
BlueShift
March 2025

BlueShift operates as an electrochemical climate tech innovator.

Assistive Technology · Cambridge$2.1M Pre-Seed
Seasats
March 2025

Seasats: Effortless ocean data.

Artificial Intelligence (AI) · San Diego$9.1M Venture - Series Unknown
AtmoSpark
March 2025

AtmoSpark slashes building energy costs with breakthrough moisture capture technology

Advanced Materials · Houston$300K Pre-Seed
Active Surfaces
May 2024

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

Manufacturing · Salem$5.6M Pre-Seed
Cemvita
February 2024

Cemvita uses synthetic biology to develop solutions inspired by nature, aiming to facilitate the transition towards sustainable energy.

Biotechnology · Houston$6.5M Venture - Series Unknown
Varea Energy
July 2023

Decarbonizing the Heavy Industry and Electricity Space by Pioneering Hydrogen as a Sustainable Alternative.

CleanTech · Houston$500K Pre-Seed
ZS2 Technologies
January 2024

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

Building Material · CalgaryNon-equity Assistance
Lobster Robotics
December 2023

Lobster Robotics provides lightweight, low-cost, quick visual surveying robots to reduce surveying costs in offshore wind farms.

Transportation · Delft$378K Seed
studio 3e8
December 2024

Studio 3E8 offers an innovative platform that enhances accessibility to metal 3D printing and reduces costs significantly.

3D Printing · CambridgeNon-equity Assistance
Sweetch Energy
December 2024

Sweetch Energy is created to leverage most recent academic discoveries in nanotechnologies and materials in the blue osmotic energy field.

Energy · RennesNon-equity Assistance
NeuroBionics
December 2025

NeuroBionics is shaping the future of precision bioelectronic medicine.

Biotechnology · Cambridge$4.2M Seed
Hempitecture
November 2024

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

Building Material · Ketchum$8.4M Grant
Revterra
October 2022

Revterra is a developer of flywheel energy storage systems.

Energy Management · Houston$20K Grant
Inductive Robotics
February 2026

Inductive Robotics offers a cost-free, scalable EV charging solution for parking lots.

Autonomous Vehicles · Austin$100K Seed
Thola Inc
February 2025

Making adoption of climate sustainable practices profitable for SMEs

Big Data · San Francisco$25K Grant

Where Greentown Labs invests

Manufacturing6
Energy6
Renewable Energy5
CleanTech3
Building Material3
Construction3

About Greentown Labs's portfolio

How many companies has Greentown Labs invested in?

Greentown Labs has invested in 44 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Greentown Labs invest in?

Greentown Labs's top investment sectors include Manufacturing, Energy, Renewable Energy, CleanTech, Building Material. The firm invests across 61 different industry categories.

What is Greentown Labs's largest investment?

Among tracked funding rounds, Dioxycle received $17.0M in a Series A round. Greentown Labs's total known invested capital is $182.1M.

What is the average investment size for Greentown Labs?

Greentown Labs's average investment size is $4.2M across its portfolio of 44 companies.

What are Greentown Labs's most recent investments?

Recent Greentown Labs portfolio additions include Applied Bioplastics, Katz Water Technologies, Gaia AI, Dioxycle, Veloce Energy. These companies were founded in 2020 or later.

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