Company lists · Data refreshed September 2026

Top 25 Distributed energy resource consultants based in the United States

Name: Distributed energy resource consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 2,821 companies tracked

RevenueBase identified 2,821 distributed energy resource consultants headquartered in the United States as of September 2026 and tracks 61,109 professional contacts across them, including 26,244 with verified work emails. New York is the largest hub.

This list covers distributed energy resource consultants headquartered in the 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 16, 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 16, 2026 86% judged on-target in blind review

2,821Companies

61,109Contacts tracked

26,244Verified emails

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The 25 largest distributed energy resource consultants based in the United States

Ranked by team size

Top 25 of 2,821 distributed energy resource consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to distributed energy resource consultants: 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	Enphase Energy	Partial evidence	Fremont, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	3,130 contacts →
	Partial evidence “Enphase Energy is a global energy technology company and the world’s leading supplier of microinverter-based solar and battery systems.” Source: RevenueBase Database · checked Sep 16, 2026
2	Enercon Services, INC	Partial evidence	Kennesaw, GA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,865 contacts →
	Partial evidence “ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…” Source: RevenueBase Database · checked Sep 16, 2026
3	Fluence	Partial evidence	Arlington, VA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,863 contacts →
	Partial evidence “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Source: RevenueBase Database · checked Sep 16, 2026
4	Rehlko	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,709 contacts →
	Partial evidence “Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life.” Source: RevenueBase Database · checked Sep 16, 2026
5	IGS Energy	Partial evidence	Dublin, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,388 contacts →
	Partial evidence “IGS Energy has been a trusted energy advisor since 1989, growing into one of the nation’s top energy retailers.” Source: RevenueBase Database · checked Sep 16, 2026
6	Ameresco	Partial evidence	Framingham, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,383 contacts →
	Partial evidence “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Source: RevenueBase Database · checked Sep 16, 2026
7	Solv Energy	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,286 contacts →
	Partial evidence “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: RevenueBase Database · checked Sep 16, 2026
8	Qcells North America	Partial evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	501-1,000	954 contacts →
	Partial evidence “Qcells is a renowned complete energy solutions provider in solar cell and module, energy storage, downstream project business and energy retail.” Source: RevenueBase Database · checked Sep 16, 2026
9	Sunnova Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	501-1,000	906 contacts →
	Partial evidence “Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Source: RevenueBase Database · checked Sep 16, 2026
10	Willdan	Indirect evidence	Anaheim, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	851 contacts →
	Indirect evidence “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Source: RevenueBase Database · checked Sep 16, 2026
11	Powersecure, INC	Partial evidence	Durham, NC, United StatesHQ checked Sep 16, 2026	501-1,000	740 contacts →
	Partial evidence “PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Source: RevenueBase Database · checked Sep 16, 2026
12	Resource Innovations	Strong evidence	Half Moon Bay, CA, United StatesHQ checked Sep 16, 2026	501-1,000	733 contacts →
	Strong evidence “Resource Innovations (RI) is an energy transformation firm.” Source: RevenueBase Database · checked Sep 16, 2026
13	LUMIO	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 16, 2026	5,001-10,000	719 contacts →
	Indirect evidence “We’re on a mission to make power personal.” Source: RevenueBase Database · checked Sep 16, 2026
14	Baker Electric	Partial evidence	Escondido, CA, United StatesHQ checked Sep 16, 2026	501-1,000	680 contacts →
	Partial evidence “Baker Electric is a full-service electrical contractor and energy infrastructure expert headquartered in Escondido, California.” Source: RevenueBase Database · checked Sep 16, 2026
15	Electric Power Engineers	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	501-1,000	630 contacts →
	Indirect evidence “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Source: RevenueBase Database · checked Sep 16, 2026
16	Depcom Power, INC	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 16, 2026	1,001-5,000	624 contacts →
	Partial evidence “DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Source: RevenueBase Database · checked Sep 16, 2026
17	Greentech Renewables	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	595 contacts →
	Partial evidence “As Greentech Renewables, we prioritize our commitment to providing customers with exceptional service and top-tier products from prominent renewable energy manufacturers.” Source: RevenueBase Database · checked Sep 16, 2026
18	The Energy Authority	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 16, 2026	201-500	595 contacts →
	Partial evidence “The Energy Authority (TEA®) is the strategic partner of choice in providing energy solutions to public power.” Source: RevenueBase Database · checked Sep 16, 2026
19	Noresco	Partial evidence	Westborough, MA, United StatesHQ checked Sep 16, 2026	201-500	481 contacts →
	Partial evidence “NORESCO, a part of Carrier Global Corporation, helps customers modernize aging building systems and upgrade energy and water infrastructure to meet evolving demands.” Source: RevenueBase Database · checked Sep 16, 2026
20	REC Solar	Indirect evidence	San Luis Obispo, CA, United StatesHQ checked Sep 16, 2026	n/a	471 contacts →
	Indirect evidence “Founded in 1997, REC Solar has emerged as a leader in the solar industry, installing 800+ solar and storage solutions for commercial and public sector customers nationwide.” Source: RevenueBase Database · checked Sep 16, 2026
21	TRIO	Partial evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	201-500	383 contacts →
	Partial evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 16, 2026
22	Energyscape Renewables	Indirect evidence	Denver, United StatesHQ checked Sep 16, 2026	501-1,000	379 contacts →
	Indirect evidence “Established in 2019.” Source: RevenueBase Database · checked Sep 16, 2026
23	Budderfly	Partial evidence	Shelton, CT, United StatesHQ checked Sep 16, 2026	201-500	366 contacts →
	Partial evidence “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Source: RevenueBase Database · checked Sep 16, 2026
24	Solar Energy World	Partial evidence	Laurel, MD, United StatesHQ checked Sep 16, 2026	501-1,000	337 contacts →
	Partial evidence “With tens of thousands of customers, Solar Energy World is the fastest growing solar and battery system installation company in our region, serving Delaware, Florida, Maryland…” Source: RevenueBase Database · checked Sep 16, 2026
25	Commonwealth Associates, INC	Indirect evidence	Jackson, MI, United StatesHQ checked Sep 16, 2026	201-500	305 contacts →
	Indirect evidence “We provide expert engineering and consulting services that enable a more reliable and resilient power system.” Source: RevenueBase Database · checked Sep 16, 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: distributed energy resource consultants. 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 distributed energy resource consultants.
Partial evidence: Its own public description names part of distributed energy resource consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name distributed energy resource consultants. 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 25 of 2,821 distributed energy resource consultants based in the United States

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Distributed energy resource consultants based in the United States at a glance

As of Sep 16, 2026

42.9%Verified-email coverage

21.7Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

1,306

11-50

1,030

51-200

342

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,821 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 distributed energy resource consultants, 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 the United States whose own description of what they do matches “distributed energy resource consultants”. 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 distributed energy resource consultants), 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 distributed energy resource consultants, and records with no verified work email. Companies headquartered outside United States 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, 26,244 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 16, 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.

Distributed energy resource consultants by metro

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 distributed energy resource consultants, 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 distributed energy resource consultants are there based in the United States?

RevenueBase identified 2,821 distributed energy resource consultants headquartered in the 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?

Enphase Energy, headquartered in Fremont, tops this list with the largest team on record.

Which city has the most distributed energy resource consultants?

New York leads with 82 headquartered companies, followed by Houston (81) and San Diego (47).

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 26,244 verified decision-maker contacts tracked across these 2,821 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 16, 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.