February Investor Newsletter: Sharing the Climatetech Love

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Friends of Greentown,

Happy Valentine’s Day! Here at Greentown, we share our love for the planet every day, but today, we wanted to share our appreciation for this community and all you do to help reduce emissions, decarbonize our economy, and make working on this extremely important and urgent cause something to look forward to everyday. If you want to learn more about just how much climatetech love we shared with the startup ecosystems in Boston and Houston last year, check out our newly released 2022 Impact Report! You’ll see that the 500+ startups that have come through our doors have raised more than $4B in funding, generated over $9.8B in regional economic impact, created more than 24,000 jobs, and seen a 94 percent survival rate—and we have no plans to slow this momentum down!

Now let’s get into upcoming events for February and March so we can keep sharing the climatetech love:


Reminder for next week: you can join Greentown virtually or in-person on Feb. 21 for the first Sector Pitch Day of 2023, focused on reducing electricity-related emissions. This invite-only event will feature a speaking program, startup pitches, and an opportunity to connect with entrepreneurs, corporates, and fellow investors working in the energy space. Register here if you want to convene with fellow leaders to discuss the challenges that the industry faces and how to collaboratively tackle them! 

And if you would like to meet our fundraising startups in the sector before the event begins, please reach out to me about a spot at our private investor networking lunch—we still have a few spots open.


On Feb. 23, join us in-person in Boston to celebrate the kickoff of ACCEL, an accelerator program for BIPOC-led startups from Greentown and Browning the Green Space. At this event, hear from innovative startups that are developing climate solutions for decarbonization and resilience.

If you have any questions or want to see how you can support or get involved, don’t hesitate to reach out to our team at [email protected].


We’ve got your favorite monthly networking events coming up in March, and for the first time in a while, I will be at both of them! On March 6, join me and the Danish Delegation at Greentown Houston’s Transition On Tap. And at the end of the month, I’ll be back in Boston for our EnergyBar on March 30. This will be a fun one—it’s the Final Showcase for Go Make 2022, a Greentown Go program led by Mitsubishi Corporation (Americas) and supported by the M-Lab Companies, focused on decarbonizing supply chains, from production through packaging and distribution. And if you can’t make it in-person, don’t worry—the showcase and speaking program will be livestreamed.


Check out the $44M+ raised by our members and alumni and the acquisitions that happened since last month’s newsletter:

  • Sublime Systems, a developer of new technology to produce low-carbon cement, raised a $40M Series A round, led by Lowercarbon Capital.
  • Teal Bio, developer of reusable PPE for healthcare workers, has added $500K of capital to a now $3M Series A round led by Caligan Partners in late 2021. 
  • Kuva Systems, developer of an Industrial IoT methane-leak and emission-detection platform, raised an $11.3M Series A round, led by Climate Innovation Capital.
  • Aja Labs raised a $2.5M seed round to accelerate commercialization of its environmentally friendly synthetic hair alternative.
  • Aeromine Technologies received an investment and endorsement from AEC Angels, an investment platform focused on architecture, engineering, and construction technologies.
  • Member company InfiSense, developer of an IoT platform intended to allow businesses to integrate data from any long-range sensors (LoRa and LoRaWAN), was acquired by Sealed.

If you want to explore investing in our incredible community of startups, reach out to me so we can get you subscribed to our Deal Flow Digest for accredited investors.


If you are interested in our quarterly Investor Roundtable in Boston, it will be in the second half of March and focused on ESG—please reach out to me and let me know when you are available so we can add you to the guest list! Our Houston Q1 Investor Roundtable is filled, but if you’d like to join future roundtables, reach out to our Member Success Coordinator Dan Cliff.


Let’s wrap with a multitude of ways to connect with the best climatetech community around:

  • Want to check out the latest (February) Deal Flow Digest or want to get signed up for future Deal Flow Digests? Reach out to me.
  • Want to check out the latest (December) Pilot Digest or want to get signed up for future Pilot Digests? Reach out to Dan Cliff.
  • Know people looking for a climatetech career? Head to our job board.
  • Want more stories on our startup companies? Read the news.
  • Know climatetech entrepreneurs seeking to incubate in Boston or Houston? They can apply here.
  • Interested in realizing all the benefits of partnership? Learn more here.
  • Want to help grow our investor network? Forward this email to a friend and have them sign up here.
As always, we’re here to conspire with you in the name of climate action. Questions or thoughts about what’s ahead? Please don’t hesitate to reach out! 

Until next month,

P.S. – Keep up on all the latest climate action in between newsletters. Follow us on Twitter and LinkedIn, and if you’d like to hear from us more often, sign up for our main newsletters here and our Houston-specific newsletters here.







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