You’re the expert on your technology.

We’re the experts on scaling climatetech startups.

That’s a pretty great combination.

We know what climatetech and cleantech startups need to succeed because we transform their growth every day. From equipment to advice to workshops to introductions, we connect companies with the people and resources they need to thrive.

But we also know every startup is different, which means we’re continuously adapting to meet our members’ needs. Want to do something at Greentown that’s never been done before? Great—we’ll help you make it happen.

We have the data to prove this system works: 90 percent of the startups we’ve supported are still in business today.

Our members are innovating across the key greenhouse gas emitting sectors: electricity, transportation, buildings, manufacturing, and agriculture. What ties this community of entrepreneurs together is a common drive to tackle climate change with the technologies that will power our future—and an understanding that no one can do this alone.

The Greentown Community

What does community look like at Greentown Labs? It looks like helping a fellow member edit a grant proposal, borrowing another startup’s equipment, and sharing investor contacts. It looks like holding a door, striking up a conversation, and swapping ideas with your neighbors. It looks like a vibrant, humming workspace where people are collaborating to solve climate change.

We believe our community is our greatest resource. In fact, Greentown was founded in the spirit of community and collaboration. Our four founding startups worked alongside each other late into the night, providing emotional support and a lending hand. Twelve years and 500+ startups later, many of our members still say the community is their favorite part of Greentown.

“Having the supportive team at Greentown has been the biggest collective resource—having people really care about the success of your company, with proactiveness and thoughtfulness.

The Greentown space feels like home, and I could not have asked for a better place to start a company.”

Sidney McLaurin

Founder + CEO, Fleet Robotics

The Greentown Ecosystem: Corporates, Investors, Expert Mentors, and Others Who Can Help Your Company Grow

Greentown is all about forging connections. We need to work together to win the fight against climate change, and nowhere is the power of collaboration more apparent than at Greentown. 

We’ve seen firsthand the magical outcomes of relationships between startups and corporates, inventors and manufacturers, entrepreneurs and fellow entrepreneurs. We aim to be the link between key partners, creating a leading community of climate champions that’s a nexus of collaboration, innovation, and change.

Access to Partners

Once you’re a member at Greentown, large corporations stop being enigmas and start being people. They’re the people who are hosting Lunch + Learns, holding office hours, and are really, really eager to meet you. Some of them are even working right next to you in the office. These connections lead to real results, from pilot projects to investments to R&D partnerships.

These partners also offer you the hardware, software, and professional services you need to succeed—think SOLIDWORKS, scientific articles, and prototyping equipment.

Investor Program

Our investor program’s mission is simple: to connect our startups with the capital they need to scale. From curating investor-startup matches to facilitating pitching practice and feedback, we’re committed to helping our startups navigate the fundraising process.

Want to learn more about how we can help? Get in touch!

  • Get direct introductions and access to investors through our curated investor network
  • Be featured in Deal Flow Digests
  • Meet one-on-one with investors and partners via office hours
  • Connect with key investors in your industry at Sector Pitch Days and other invite-only investor networking sessions
  • Receive fundraising coaching and support
  • Source peer-driven pitch feedback at biweekly Fundraising Forums
  • Learn from and network with industry-leading investors through Greentown’s Investor Speaker Series

Venture Development Services

We know early-stage founders with lean teams have to wear many hats—and we’ve lined up the experts who can help you navigate it all. Learn how you can connect with industry experts to support your startup’s growth:

Advisor Program

Advisors work with our community of entrepreneurs by providing advice in their areas of expertise via one-on-one sessions, office hours, and workshops. Areas of industry expertise include but are not limited to:

  • Business development 
  • Diversity, equity, and inclusion 
  • Fundraising
  • Go-to-market strategy
  • Managing a board of directors
  • Marketing and communications 
  • Pitch-deck development
  • Product-market fit
  • Sales 
  • Technical expertise
  • And more!
Expert-in-residence Program

Experts-in-residence (EIRs) work closely with Greentown startups for up to six months on developing key business areas and navigating major projects. In addition to meeting with founders one-on-one, EIRs lead expert roundtables and host community workshops for our entrepreneurs. 

Areas of industry expertise include:

  • Capital and fundraising
  • Marketing and sales
  • Organizational development
  • Business Development

Labs, Office Space, Tools + Equipment, and More

Greentown Boston

Our three buildings in Somerville, MA, just outside of Boston, offer members the resources they need to help their technology take off.

See Our Campus

Greentown Houston

Tap into the climatetech startup ecosystem in the energy capital of the world.

Learn more

Software + Business Resources

From software licenses to recruitment support to IP legal services, Greentown offers startups the resources they need to succeed.

Prototyping software

  • Altium, Ansys, Aspentech, GitHub, Keysight Advanced Design System, MathWorks, OnShape, SOLIDWORKS

Business software

  • Amazon Web Services, Doodle, Hubspot, Microsoft for Startups

Research resources

  • Lux Research, University of Massachusetts Lowell

HR + hiring

  • Design Match, FloCareer, Reimaginz, Root & Leaf, S Brown Consulting, Vensure Employer Services, TechSquads
  • Olin College of Engineering recruitment


  • Chubb & Hilb Group, Foley Hoag


  • AngelSpan, Carta, LTSE Equity, PitchBook, PwC, StartEngine Crowdfunding, Visible
  • Fidelity for Startups; Shoobx
  • Greentown Labs’ non-dilutive funding tracker
  • MassVentures grant support


  • FORGE, Greentown Labs’ sister organization
  • SPEC Process Engineering + Construction

Professional development + mentorship

  • Greentown advisors
  • Greentown experts-in-residence
  • Habitus Incorporated
  • Next Rung Technologies

Marketing + visibility

  • Micro-page on Greentown Labs’ website
  • Job posting on Greentown Labs’ Careers page
  • Pitch and showcase opportunities at Greentown events
  • Marketing guidance

See the Greentown Boston and Greentown Houston pages for more, location-specific resources!

Members-only Events

Want to learn about how to approach investors? How to work with corporates? How VCs think about capitalization tables? Greentown has your answers.

We host more than 350 internal events each year, including:

  • Lunch + Learns
  • Expert panels
  • Networking events
  • Industry-specific workshops
  • Office hours with investors, corporates, and experts
  • Meetup groups focused on software, hardware, manufacturing, AI + machine learning, battery + smart grid, and agtech
  • And more!

All of our programming is designed to equip our members with the knowledge, resources, and connections they need to succeed. These events foster exchanges of knowledge and build a sense of community.