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Friends of Greentown Boston,

Are you looking for a way to engage more deeply with Greentown entrepreneurs this year? We’re excited to announce that applications to join our mentor pool are now open, plus a new way for non-startups to join the community through the Ecosystem Flex Membership—read on for more:

NEW: HOT DESK/ECOSYSTEM FLEX MEMBERSHIP

Greentown Boston’s Ecosystem Flex Membership is designed for professionals across the ecosystem who want to engage more deeply with our community—without being a startup member.

Ecosystem Flex Members enjoy meaningful access to Greentown’s network of startups, events and programming, shared office and meeting spaces, and on-site amenities. This is ideal for investors, service providers, consultants, storytellers, researchers, and other champions supporting climatetech and energy innovation.

APPLY FOR ECOSYSTEM FLEX MEMBERSHIP

BECOME A GREENTOWN MENTOR

We’re looking for experts in business development, go-to-market-strategy, fundraising, design process + prototyping, finance, legal, marketing, and more. If you’re a former founder, industry expert, or coach with expertise to offer, we’re looking for YOU!

APPLY TO JOIN THE MENTOR POOL

We hope to see you soon!

Warmly,
The Greentown Team

MEET OUR NEWEST MEMBERS

Bootbox develops compact, refrigerant-free thermoelectric heat pumps for quiet, efficient, climate-neutral HVAC.

Upgraid’s platform combines satellite imagery, building-level data, and physics-based energy modeling, diagnosing buildings and running energy simulations to produce ready-to-pitch upgrade proposals.

OPEN APPLICATIONS

Go Make 2026 with Shell and Technip Energies

WHO: Startups at Technology Readiness Levels (TRL) 3-8 that are developing process technology and catalytic innovations for low-carbon fuels, low-carbon gases, CO2 removal, and sustainable chemical manufacturing.

WHAT: An open-innovation program that will give selected startups a structured platform to engage leadership from Shell and Technip Energies and explore potential partnership outcomes, including pilots and demonstrations. See more detailed benefits here.

WHEN: Apply by March 10!

Yes/Boston Innovation Challenge

This program from the World Economic Forum’s Uplink supports early-stage ventures at the intersection of health access, resilience, and sustainable food systems to accelerate and scale innovative solutions that deliver measurable impact in Boston. Apply by March 23.

Aspire Climatetech

This 5-week investor-readiness program from VentureWell supports early-stage startups in pinpointing fundraising needs, refining deal room materials, and more in preparation for fundraising. Apply by April 8.

MARK YOUR CALENDAR FOR THESE UPCOMING EVENTS

MARCH 4
Renewable Energy Systems Showcase and Networking

A showcase and networking event celebrating the innovators driving the clean-energy transition.

MARCH 5
Climatetech Intern Fair
Our annual intern fair, which focuses on connecting students and soon-to-be graduates with Greentown’s network of cutting-edge climatetech startups.

MARCH 11
Cleantech Open Northeast Kickoff
We’re kicking off another year of Cleantech Open Northeast—one of the foremost accelerators for early-stage innovators.

Hear from program alumni including Greentown members florrent, Climative, rStream, and MicroEra Power, and learn how the accelerator can help power your growth.

APRIL 1
Innovating with Amazon: CO₂ Utilization in the Built Environment
Meet the startups selected for Go Build 2026, our open-innovation program with Amazon and the Global CO2 Initiative focused on advanced CO₂ mineralization and carbonation technologies to decarbonize the built environment.

We’re always looking for partners for our public events and industry experts to support our startup programming! Interested? Get in touch.

STARTUP NEWS

New funding, new deployments, new awards, and more! Read a roundup of our startups’ recent milestones here and check out some highlights below:

Phoenix Tailings, which provides sustainable technologies to recover and refine critical metals, raised a $40.2M Series B to accelerate U.S. rare earth metals production.
10DQ, Elementium Materials, Hera Materials, and alum ElectricFish Energy received a total of more than $1M in grants for clean energy and climate technology projects from the Massachusetts Clean Energy Center.
Lasso received $100k from the Bezos Earth Fund Acceleration Initiative for its food technology that uses natural proteins to create real texture in alternative foods. It also launched two new products using its technology: a fruit snack and a chip.
Reframe Systems, a physical AI company automating the homebuilding process to address the housing crisis, is developing six for-sale duplexes in Devens, MA.
Alloy Enterprises, a manufacturer of direct liquid-cooled thermal management components, was acquired by Johnson Controls.

STARTUP SPOTLIGHTS

What if your paint could help regulate humidity in your home? That’s exactly what Lilypad, the new paint-and-primer system from Adept Materials, does, using a bidirectional vapor control system to tackle moisture-related damage in buildings. Check out how they brought the product from lab to market.

When a Vermont composting facility simply ran out of space, it needed a way to increase capacity while still operating on its same footprint.

It turned to Agrilab Technologies, whose technology for compost aeration and heat recovery (CAHR) saves composters time, money, and space—all while cutting down on greenhouse gas emissions. See how here.

Introducing the Ecosystem Flex Membership: A New Way to Deepen Your Engagement