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Dear Friends of Greentown,

Climatetech Summit 2025 is next week—Nov. 4 in Houston and Nov. 6 in Boston! Join us, our fantastic startups, and dozens of speakers for a day of hands-on exploration of climatetech solutions—including:

Houston’s keynote fireside chat: “Energy Innovation as American Leadership,” featuring Arnold Ventures Co-founder and Co-chair John Arnold
Boston’s keynote fireside chat: “Revolutionary Reinvention: Powering America’s Next Chapter,” featuring Massachusetts’s Secretary of the Executive Office of Economic Development Eric Paley and GE Vernova Chief Technology Officer Krishna Jonnalagadda
Dozens of startup pitches
A live Open Circuit podcast recording
A book launch for Disciplined Entrepreneurship for Climate and Energy Ventures
Startup showcases
And more!

We hope to see you there!

Warmly,
The Greentown Team

Join #FuelTheFuture Ahead of the Summit!

We’ve always believed that innovation is a team sport. For almost 15 years, our founders, partners, and community have built Greentown—brick by brick, prototype by prototype—into the world’s largest climatetech and energy incubator and a nonprofit powerhouse for climate innovation.

Now, we’re inviting you to join #FuelTheFuture, Greentown’s first-ever philanthropic campaign! Every dollar raised powers the Greentown Innovation Fund, fueling what founders need most—from new prototyping tools to crucial programming. Check out a video from our CEO!

Getting started is easy—and fun!

Start your fundraising page—as a team, a company, or solo—and make it your own.
Spread the word—post, share, and invite friends, family, and fans to join you.

Applications Open: Go Build 2026 with Amazon

Greentown Go Build 2026 with Amazon—and in collaboration with the Global CO₂ Initiative at the University of Michigan—is accepting startup applications through Jan. 9, 2026!

Go Build 2026 is accelerating the decarbonization of the built environment by advancing CO₂-mineralization technologies that turn captured carbon into aggregate for concrete—driving down embodied emissions in construction.

Selected startups will benefit from:

A structured accelerator platform for testing and exploration with Amazon
Desk space at Greentown for the duration of the program
Access to entrepreneur-focused programming and networking events
A needs-based stipend to support participation

LEARN MORE + APPLY BY JAN. 9

Greentown Partners with the Edison Awards

We’re partnering with one of the biggest innovation prizes in the ecosystem: the Edison Awards, which honors market-ready innovations and the global community of entrepreneurs driving them forward.

Our members are currently nominating for the Awards’ annual prizes, which offer community, credibility, visibility, and the connections to accelerate market growth. Through this partnership, the Edison Awards will gain deeper access to leading climatetech and energy innovators within our ecosystem, broadening the scope of industries and solutions recognized through its program.

Know a game-changing, industry-disrupting, market-ready innovation that you think should be recognized? Nominations are open until Nov. 14.

Recent Reads

Read a roundup of our startups’ recent milestones, including Cyvl’s $14M Series A, Agrilab Technologies’ three new deployments, and Raptor Maps’ partnership with AB CarVal.

Check out reflections from Evonik’s Director RD&I on the progress made with startups Ecovia-bio and La Fabrique Végétale through Go Make 2025, our Greentown Go program to decarbonize the personal-care industry.

Meet the Greentown Go x M-Lab 2025 startup cohort! This program is bringing four startups together with leading Japanese companies to address surging electricity demand and the need for affordable, reliable power through innovations in grid intelligence and critical-mineral recovery.

Insights from The Forum: We brought together a cross-section of leaders from climatetech, energy, venture, and digital infrastructure to unpack one of the most pressing challenges of our time—how to power AI sustainably. Here’s what they said.

We’re teaming up with our member GreenLabs Recycling to turn plastic lab waste from our wet lab into new lab products!

From our member Alex Y. LIU, CEO of WattSto Energy: Commercial battery storage is everywhere—and operators are starting to see them not just as backup for outages, but as revenue-generating opportunities in their own right. This is where alternative technologies offer promise.

In the third year of ACCEL—Greentown and Browning the Green Space’s accelerator for BIPOC and other underrepresented founders—eight startups have made tangible progress across fundraising, pilot deployments, and manufacturing scale-ups.

More Upcoming Events

Oct. 30: M-Lab Ignite 2025 [Ecosystem Event - California]

Join the Greentown Go x M-Lab 2025 public showcase, which will spotlight breakthrough innovations in grid management and mineral circularity from both the selected startups and participating corporations.

Nov. 13: Houston Innovation Awards [Greentown Houston]

We’re hosting InnovationMap’s annual awards event, which honors the best of Houston's innovation ecosystem, including startups, entrepreneurs, mentors, and more. Many of our members are nominated; join us to see who takes home the prizes!

Dec. 4: Carbon to Value Initiative Year 5 Kickoff [Greentown Boston]

Meet the startups shaping the future of carbontech and kick off Year 5 of the Carbon to Value Initiative with Greentown, the Urban Future Lab at NYU Tandon School of Engineering, and Fraunhofer USA!

External Newsletter — October 2025

From The Ecosystem

External Newsletter — October 2025