Company lists · Data refreshed September 2026

Top 23 Energy transition companies based in Boston, United States

Name: Energy transition companies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 42 companies tracked

RevenueBase identified 42 energy transition companies headquartered in Boston, United States as of September 2026 and tracks 31,332 professional contacts across them, including 13,019 with verified work emails. New York is the largest hub.

This list covers energy transition companies headquartered in Boston, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 15, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 15, 2026 86% judged on-target in blind review

42Companies

31,332Contacts tracked

13,019Verified emails

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The 23 largest energy transition companies based in Boston, United States

Ranked by team size

Top 23 of 42 energy transition companies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to energy transition companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GE Vernova	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	10001+	29,528 contacts →
	Partial evidence “GE Vernova is a purpose-built energy technology company on a mission to electrify to thrive and decarbonize the world.” Source: RevenueBase Database · checked Sep 15, 2026
2	Nexamp	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	201-500	607 contacts →
	Partial evidence “Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.” Source: RevenueBase Database · checked Sep 15, 2026
3	Longroad Energy	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	51-200	210 contacts →
	Partial evidence “Founded in 2016, Longroad Energy is a U.S-based energy company focused on developing and operating wind, solar, storage, and data center projects throughout North America.” Source: RevenueBase Database · checked Sep 15, 2026
4	Bluewave	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	51-200	125 contacts →
	Partial evidence “BlueWave is a mission-driven clean energy developer, owner, and operator building solar and energy storage solutions that strengthen the electric grid and deliver long-term grid…” Source: RevenueBase Database · checked Sep 15, 2026
5	Advanced Power	Indirect evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	51-200	92 contacts →
	Indirect evidence “Advanced Power is a privately owned company that develops, owns, and manages modern power generation and related infrastructure projects throughout Europe and North America.” Source: RevenueBase Database · checked Sep 15, 2026
6	Team Sunshine Construction	Strong evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	51-200	48 contacts →
	Strong evidence “Team Sunshine is New England's Premier Solar Installation Company and has been helping New England Homeowners transition from fossil fuels to renewable energy since 2019.” Source: RevenueBase Database · checked Sep 15, 2026
7	Lightstar Renewables, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	42 contacts →
	Partial evidence “At Lightstar, we’re redefining solar energy for the benefit of all-people, places, and the planet.” Source: RevenueBase Database · checked Sep 15, 2026
8	Syso Technologies	Indirect evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	40 contacts →
	Indirect evidence “SYSO Technologies envisions a power grid free from the use of fossil fuels.” Source: RevenueBase Database · checked Sep 15, 2026
9	Citizens Energy Corporation	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	37 contacts →
	Partial evidence “Citizens Energy Corporation is a nonprofit energy company that develops innovative energy ventures to make life's basic needs more affordable.” Source: RevenueBase Database · checked Sep 15, 2026
10	Elevate Renewables	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	29 contacts →
	Partial evidence “Elevate is a national renewable energy development company focused on the strategic deployment of battery energy storage resources co-located at existing large generation…” Source: RevenueBase Database · checked Sep 15, 2026
11	Smartflower Solar	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	29 contacts →
	Partial evidence “SmartFlower is a revolutionary solar energy system that follows the sun from sunrise to sunset.” Source: RevenueBase Database · checked Sep 15, 2026
12	Kearsarge Energy	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	26 contacts →
	Partial evidence “Kearsarge Energy is a vertically integrated renewable energy project development and finance company that owns and operates its projects.” Source: RevenueBase Database · checked Sep 15, 2026
13	Galehead Development	Strong evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	24 contacts →
	Strong evidence “Galehead is the leading upstream technology and services platform for planning, management and delivery of greenfield development pipeline for the Energy Transition.” Source: RevenueBase Database · checked Sep 15, 2026
14	Latitude Media	Strong evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	17 contacts →
	Strong evidence “Latitude Media covers the new frontiers of the energy transition through in-depth B2B news, research, events, and podcasts.” Source: RevenueBase Database · checked Sep 15, 2026
15	Glenvale	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	1-10	12 contacts →
	Partial evidence “Glenvale develops utility-scale solar power plants, coupled with energy storage.” Source: RevenueBase Database · checked Sep 15, 2026
16	NEW Paradigm Energy PBC	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	1-10	8 contacts →
	Partial evidence “New Paradigm Energy (NPE) is building the Intelligent Decentralized Energy Infrastructure of the future.” Source: RevenueBase Database · checked Sep 15, 2026
17	Consult Energy INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	1-10	7 contacts →
	Partial evidence “At Consult Energy we're on a mission to become the go-to renewable energy recruitment partner.” Source: RevenueBase Database · checked Sep 15, 2026
18	Omni Navitas	Indirect evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	6 contacts →
	Indirect evidence “Omni Navitas partners with commercial and industrial property owners, agricultural land and farm owners, and government agencies to implement revenue-generating solar solutions…” Source: RevenueBase Database · checked Sep 15, 2026
19	Concurrent	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	1-10	4 contacts →
	Partial evidence “Concurrent is a renewable energy company that specializes in developing utility scale solar and battery storage facilities in Texas and California.” Source: RevenueBase Database · checked Sep 15, 2026
20	Energy Management, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	4 contacts →
	Partial evidence “EMI is a privately held energy company with a more than 40-year track record of developing, financing, constructing and operating clean energy projects.” Source: RevenueBase Database · checked Sep 15, 2026
21	Rivermoor Energy	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	11-50	3 contacts →
	Partial evidence “Rivermoor Energy provides clean energy development, planning, financing, and investment solutions to corporate, commercial, utility, government and institutional (higher…” Source: RevenueBase Database · checked Sep 15, 2026
22	Lastmile Energy	Indirect evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	1-10	3 contacts →
	Indirect evidence “We design, finance, install and operate solar and storage projects” Source: RevenueBase Database · checked Sep 15, 2026
23	Photon Renewables	Partial evidence	Boston, MA, United StatesHQ checked Sep 15, 2026	1-10	1 contacts →
	Partial evidence “We are a renewable energy consulting company specializing in project development, value engineering, and construction management.” Source: RevenueBase Database · checked Sep 15, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy transition companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy transition companies.
Partial evidence: Its own public description names part of energy transition companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy transition companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 23 of 42 energy transition companies based in Boston, United States

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Energy transition companies based in Boston, United States at a glance

As of Sep 15, 2026

41.6%Verified-email coverage

746.0Average contacts per company

11-50Median size (employees)

326.2%Largest-city concentration · New York

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 42 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy transition companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Boston, United States whose own description of what they do matches “energy transition companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy transition companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among energy transition companies, and records with no verified work email. Companies headquartered outside Boston are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 13,019 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 15, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Energy transition companies by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy transition companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many energy transition companies are there based in Boston, United States?

RevenueBase identified 42 energy transition companies headquartered in Boston, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

GE Vernova, headquartered in Boston, tops this list with the largest team on record.

Which city has the most energy transition companies?

New York leads with 137 headquartered companies, followed by Houston (126) and Austin (78).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 13,019 verified decision-maker contacts tracked across these 42 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 15, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.