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About Greentown Labs

Greentown Labs, an accelerator and incubator program founded in 2011, is based in Boston, United States. With a presence in 20 countries, it has supported around 337 startups in sectors like High Tech, Environment Tech. As of Oct 2026, Greentown Labs has 1 unicorn under its belt and has witnessed 36 portfolio exits. Most notable companies in its portfolio include Sweetgreen, Accenture and Schneider Electric. The program is backed by a team of 71 people who primarily support Seed startups based in United States. Its latest investment was a Undisclosed Seed round in Ari on Mar 22, 2022.
Key Metrics
Founded Year
2011
Location
Portfolio Companies
Sectors of Investment
Stages of Investment
Seed, Grant (prize money) & 1 more
Locations of Investment
Unicorn in Portfolio

Greentown Labs' List of Top Investments

Greentown Labs has a portfolio of 337 companies, one of which is a Unicorn. Their most notable investments are in Hyperframe and LineVision.Their portfolio spans across United States, Canada, Netherlands and 17 more locations. They have invested in High Tech, Environment Tech, Energy Tech and 35 other sectors, across stages such as Seed, Grant (prize money)  and 1 more. Here is the list of top investments by Greentown Labs:
Restaurant chains offer salads and meal bowls. Its other products include chicken items, kid's meals, local food dishes, desserts, and drinks. It also provides customized food platters and supply network services.

Key facts about Sweetgreen

Provider of IT consulting, technology, and outsourcing services. It works with businesses to support digital transformation, operational improvement, and strategic growth. The platform provides expertise in areas such as cloud computing, artificial intelligence, cybersecurity, and supply chain management.

Key facts about Accenture

  • Founded Year: 1989
  • Location: Dublin (Ireland)
  • Annual Revenue: $1B+ as on Aug 31, 2025
  • Stage: Public
  • Employee Count: 779,000 as on Aug 31, 2025
  • Investors: ngn-capital.com, Bondeinvest.com and 6 Others
  • Latest Funding Round: Grant (prize money), Mar 01, 2024, $*****
  • Highlight: Public
Provider of energy management, digital monitoring, protection, and automation services. It is a global specialist in energy management, offering solutions for solar power, battery backup, EV charging, home automation, and more. It provides sustainable solutions for transforming homes into state-of-the-art vessels.

Key facts about Schneider Electric

  • Founded Year: 1836
  • Location: Rueil malmaison (France)
  • Annual Revenue: €1B+ as on Dec 31, 2025
  • Stage: Public
  • Employee Count: 163,000 as on Dec 31, 2025
  • Investors: ngn-capital.com, Temasek and 10 Others
  • Latest Funding Round: Grant (prize money), Jul 01, 2023, $*****
  • Highlight: Public
Manufacturer of electronics test and measurement equipments. Its products include instruments like oscilloscopes, multimeters, signal generators, power supplies, and EDA software. It is used in aerospace, defense, automotive, communications, education, government, and semiconductor applications.

Key facts about Keysight

  • Founded Year: 2014
  • Location: Santa Rosa (United States)
  • Stage: Public
  • Employee Count: 13,913 as on Aug 31, 2026
  • Investors: Greenleaf Trust, Gov and 2 Others
  • Latest Funding Round: Grant (prize money), Jan 01, 2024, $*****
  • Highlight: Public
Smart energy platform providing real-time electricity usage insights for homes and utilities. It uses smart sensors and data analytics to deliver real-time electricity usage insights for homes, utilities, and energy partners. It helps users understand and reduce energy consumption, improve efficiency, and support grid reliability by providing high-resolution monitoring and behavioral energy insights aimed at lowering carbon emissions and accelerating the energy transition.

Key facts about Sense

Greentown Labs' Investments by Stage

Greentown Labs has made 4 investments in Seed stage with an average round size of $50K, 3 investments in Grant (prize money) stage with an average round size of $25K and 1 investment in Series A stage.
Here are Greentown Labs' investments by stage:
Stage of entry
No. of Investments
Seed
4
Grant (prize money)
3
Series A
1
Breakdown of Greentown Labs' investments by stage of entrySeed (4)Grant (prize money) (3)
Note: We have considered here, only first round of investments

Greentown Labs' Investments by Sector

Greentown Labs has a diverse portfolio, with companies operating in the Environment Tech, Sustainability Tech, Energy Tech, Enterprise Applications and High Tech. Notably, it has invested in 224 Enterprise (B2B) companies, 212 Tech companies, 99 Tech hardware companies and at least 82 companies focusing on Software.
Here are Greentown Labs' investments by sector:
Sector
No. of Investments
Environment Tech
5
Sustainability Tech
5
Energy Tech
4
Enterprise Applications
4
High Tech
4
Others
8
Breakdown of Greentown Labs' investments by sectorsEnvironment Tech (5)Sustainability Tech (5)
Note: We have considered here, only first round of investments

Greentown Labs' Investments by Geography

Greentown Labs has made most investments in United States (8).

Greentown Labs' recent investments

Greentown Labs has not made any investment in 2026 so far.
Here are the most recent investments by Greentown Labs:
Date
Company
Location
Round Details
Round Amount
Co-Investors
Mar 22, 2022
United States
Seed
8564
-
Sep 08, 2020
United States
Grant (prize money)
2054
Nov 12, 2019
United States
Grant (prize money)
9314
Oct 24, 2019
United States
Series A
7108
-
Jun 26, 2019
United States
Grant (prize money)
1727

Unicorns in Greentown Labs' Portfolio

Greentown Labs has 1 unicorn in its portfolio - Form Energy. The most recent unicorn in their portfolio is Form Energy which became a unicorn in 2022, 4 years before Greentown Labs first invested in it.
Here is a list of unicorns in Greentown Labs' portfolio:
Tracxn Score
Company
Short Description
Founded year
Sector
Location
Company Stage
First Investment/ Acquisition Details
70
Clean energy technology platform developing long-duration iron-air battery systems
2017
Somerville
Series G
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IPOs and Publicly Listed companies in Greentown Labs' Portfolio

15 of Greentown Labs' portfolio companies have become public. Fervo Energy got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ), in May 2026 at marketcap of $7.45B and Sweetgreen got listed on the New York Stock Exchange (NYSE) at marketcap of $3B.
Here are Greentown Labs' portfolio companies that went public:
Company
IPO Date
First Invested on
First Round of Investment
Round Size
May 13, 2026
-
-
1092
Nov 18, 2021
-
-
3007
Dec 26, 2018
-
-
9760
Jun 17, 2016
-
-
4895
Apr 02, 2015
-
-
8472

Acquired companies in Greentown Labs' Portfolio

21 companies from Greentown Labs' portfolio have been acquired. The most recent acquisition was Alloy Enterprises in May 2026 by Johnson Controls for $*****.
Here are Greentown Labs' portfolio companies that got acquired most recently:
Company
Acquisition Date
First Invested on
First Round of Investment
Round Size
May 13, 2026
-
-
7847
Mar 31, 2026
-
-
8530
Sep 08, 2025
-
-
7709
Jun 18, 2024
-
-
8420
Apr 12, 2023
-
-
1217

Team profile of Greentown Labs

Greentown Labs has a team of 71 members including 17 Partners and 11 Principals located in United States and United Kingdom. Greentown Labs' team does not sit on the board of any company as of now.
Here is a list of top team members in Greentown Labs:
Name
Designation
Location
Board Memberships
Contact Details
Partner
Houston
-
Partner
Boston
-
Partner
Boston
-
-
Partner
Boston
-
-
Partner
Houston
-
-
Partner
Washington, DC
-
-
Partner
-
-
-
Partner
-
-
-
Partner
-
-
-
Partner
-
-
-
Partner
-
-

Co-investors of Greentown Labs

Over the past 10 years, 26 investors have co-invested in Greentown Labs's portfolio companies. This includes funds and angels.

  • Invested before Greentown Labs: Cleantech Open, Central Texas Angel Network and 1 other have invested in rounds before Greentown Labs. There is 1 company where Cleantech Open has invested before Greentown Labs and 1 company where Central Texas Angel Network has invested before Greentown Labs.
  • Top Co-investors of Greentown Labs: 4 investors entered a company along with Greentown Labs. These include investors like CertainTeed (1 company).
  • Invested after Greentown Labs: A total of 19 investors have invested in Greentown Labs's portfolio after their investments. Top Investors include UP.Partners (1 company) and National Grid Partners (1 company).

Recent News related to Greentown Labs

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Greentown Labs Appoints Julia Travaglini to Head of its Boston IncubatorMiningstockeducation•Jan 15, 2026•Greentown Labs
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Greentown Labs & M-Lab Announce Startup Cohort for Greentown Go x M-Lab 2025Miningstockeducation•Oct 15, 2025•Greentown Labs
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Greentown Labs Welcomes Stacey Harris as Head of PhilanthropyPR Newswire•Aug 21, 2025•Greentown Labs
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FAQs about Greentown Labs

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