Solstice

Acquired

Clean energy for every community

Boston, United States · Founded 2017 · $55.8M raised

Employees
11–50
Founded
2017
Business Model
B2B
Total Funding
$55.8M
Last Round
$21.0M Series AMay 2026
Rounds
7

About

Solstice was founded in 2014 by Sandhya Murali and Steph Speirs out of MIT as a nonprofit focused on bringing solar power to underserved communities. Today operating as a for-profit, Solstice connects tens of thousands of households and businesses to local solar farms, helping them access affordable clean energy without installing their own panels. The company also provides services for businesses and government to advance their clean energy impact, with a machine learning product called EnergyScore that uses alternative credit qualification models.

Summary

Solstice is a Clean Tech company based in Boston, United States, founded in 2017. It has raised $55.8M in total across 7 rounds, most recently a $21.0M Series A round in May 2026. Investors include Total Carbon Neutrality Ventures, Transformation Capital and Clean Ventures.

Tech & App Stack

5 technologies & apps tracked

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Funding History

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Series ASeries AMay 2026
$21.0M

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Seed through Series A — per-round amounts, valuations, and who invested in each round.

Investors

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