Company lists · Data refreshed October 2026

Top 14 Clean energy service companies based in Washington, United States

Name: Clean energy service companies based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 26 companies tracked

RevenueBase identified 26 company matches for clean energy service companies associated with Washington, United States as of October 2026 and tracks 386 professional contacts across them, including 145 with verified work emails. Across the United States, Houston is the largest hub for this category (110 companies); Washington has 26.

This list covers company matches for clean energy service companies associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built

26Companies

386Contacts tracked

145Verified emails

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The 14 largest clean energy service companies based in Washington, United States

Ranked by team size

Top 14 of 26 company matches for clean energy service companies based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Cleanchoice Energy	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	51-200	147 contacts →
	Exact match “CleanChoice Energy is a cleantech company that empowers people and businesses to easily access climate solutions.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	NEW Columbia Solar	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	51-200	35 contacts →
	Exact match “New Columbia Solar (NCS) is a full-service solar energy company, based in and serving the District of Columbia.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Solar Solution	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	11-50	28 contacts →
	Exact match “Solar Solution, based in Washington D.C, was founded in 2008 and has grown to become one of the largest solar PV installers and developers in the region.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Uprise Solar And Roofing	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	11-50	21 contacts →
	Exact match “Uprise Solar and Roofing is a Washington, DC–based solar and roofing company serving DC, Maryland, and Northern Virginia.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Sustainable YOU	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	51-200	16 contacts →
	Exact match “Sustainable You is a national strategic consulting firm in solar and sustainability serving residential and small commercial clients with a focus in the DC, Maryland and Virginia…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Ipsun Solar	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	51-200	16 contacts →
	Exact match “Ipsun Solar, a Civic Renewables Company, is a leader in clean energy services based in Virginia, Washington D.C.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Greenscape Energy	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	11-50	12 contacts →
	Exact match “Greenscape Energy is the fastest-growing green solutions provider in the Region As a group of highly-trained professionals, the Greenscape team stands ready to meet the needs of…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Distributed SUN	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	11-50	11 contacts →
	Exact match “Distributed Sun LLC (DSUN) is a renewable energy services provider founded in 2009.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Naesco	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	1-10	10 contacts →
	Exact match “Founded in 1983, the National Association of Energy Service Companies (NAESCO) is the preeminent national trade organization of the Energy Service Company (ESCO) industry and the…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Citizen Energy, LLC	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	1-10	5 contacts →
	Exact match “Citizen Energy was founded in 2012 with a vision to bring people together to increase the adoption of energy efficiency and accelerate the transition to a 100% clean energy…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Lightbox Energy	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	1-10	5 contacts →
	Exact match “Lightbox Energy is an energy and sustainability program management firm.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Ethergy Consulting Group	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	11-50	1 contacts →
	Exact match “Energy Consultants” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Point Energy	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	1-10	1 contacts →
	Exact match “Point Energy is a highly specialized and agile end-to-end strategic consultancy and operator in all aspects of the renewable energy industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Range Renewable Advisors	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	1-10	1 contacts →
	Exact match “Range Renewable Advisors (“Range” or “Range Renewables”) is a renewable energy advisory firm focused on helping clients tackle complex financial solutions in development, project…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “clean energy service companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 14 of 26 clean energy service companies based in Washington, United States

See the full list, filter by size, metro and specialty, and access 145 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clean energy service companies based in Washington, United States at a glance

As of Oct 9, 2026

37.6%Verified-email coverage

14.8Average contacts per company

11-50Median size (employees)

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 26 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Washington, United States whose business descriptions match “clean energy service companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 145 professional contacts with verified work emails across the full matched dataset. 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 October 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Clean energy service companies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clean energy service companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean energy service companies are there based in Washington, United States?

RevenueBase identified 26 company matches for clean energy service companies associated with Washington, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Cleanchoice Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most clean energy service companies?

Houston leads the United States with 110 company records, followed by San Diego (91) and New York (82). Washington has 26.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 145 professional contacts with verified work emails tracked across these 26 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 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 SmartSearch, 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.