Company lists · Data refreshed September 2026

Top 25 Solar energy consulting companies based in Chicago, United States

Name: Solar energy consulting companies based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 74 companies tracked

RevenueBase identified 74 solar energy consulting companies headquartered in Chicago, United States as of September 2026 and tracks 543 professional contacts across them, including 174 with verified work emails. Houston is the largest hub.

This list covers solar energy consulting companies headquartered in Chicago, 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 18, 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 18, 2026 86% judged on-target in blind review

74Companies

543Contacts tracked

174Verified emails

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The 25 largest solar energy consulting companies based in Chicago, United States

Ranked by team size

Top 25 of 74 solar energy consulting companies based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar energy consulting 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	Navigate Power	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1,001-5,000	96 contacts →
	Partial evidence “Register Your Interest: https://navigatepower.pinpointhq.com/register-your-interest/new Navigate Power is a leading electricity and natural gas consulting firm, headquartered in…” Source: RevenueBase Database · checked Sep 18, 2026
2	Verde Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	47 contacts →
	Partial evidence “Register Your Interest: https://navigatepower.pinpointhq.com/register-your-interest/new Verde Solutions is a full-service renewable energy developer headquartered in Chicago…” Source: RevenueBase Database · checked Sep 18, 2026
3	Carbon Solutions Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	42 contacts →
	Indirect evidence “Carbon Solutions Group was founded in Chicago, Illinois, in 2006.” Source: RevenueBase Database · checked Sep 18, 2026
4	High Five Solar Permits Expedited Permit Engineering	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	51-200	33 contacts →
	Partial evidence “Who we are: High Five Solar is a one stop solution provider for solar companies and professionals throughout the US.” Source: RevenueBase Database · checked Sep 18, 2026
5	National Retrofitting Group, LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	30 contacts →
	Strong evidence “National Retrofitting Group provides sustainability consulting along with a variety of energy retrofitting services to help our customers save money on their energy bills while…” Source: RevenueBase Database · checked Sep 18, 2026
6	Windfree Solar	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	22 contacts →
	Strong evidence “Windfree Wind and Solar Energy Company was founded early in 2009 by a team of creative energy visionaries and early adopters of sustainable technologies.” Source: RevenueBase Database · checked Sep 18, 2026
7	Envision Marketing	Indirect evidence	Chicago, United StatesHQ checked Sep 18, 2026	11-50	18 contacts →
	Indirect evidence “Envision Marketing was created in of one of the oldest deregulated states in the US, Illinois.” Source: RevenueBase Database · checked Sep 18, 2026
8	Vader National Electric	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	51-200	17 contacts →
	Partial evidence “Mission Help people design, build, monitor, maintain, and optimize their energy and information systems.” Source: RevenueBase Database · checked Sep 18, 2026
9	360 Energy Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	16 contacts →
	Strong evidence “360 Energy Group is an energy consulting firm that provides comprehensive energy solutions to the public and private sectors in the United States and worldwide, including energy…” Source: RevenueBase Database · checked Sep 18, 2026
10	Fresh Coast Solar	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	15 contacts →
	Strong evidence “We help Chicagoland's residents and businesses understand and reap the benefits of clean, affordable solar energy.” Source: RevenueBase Database · checked Sep 18, 2026
11	ONE Energy Solutions, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	51-200	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
12	Ailey Solar Electric, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	10 contacts →
	Partial evidence “Ailey Solar is a solar PV designer and installer.” Source: RevenueBase Database · checked Sep 18, 2026
13	Hardt Electric, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “Hardt Electric is a respected, industry leading electrical contractor based in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 18, 2026
14	Option ONE Energy	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	7 contacts →
	Partial evidence “Option One Energy provides modern energy solutions for businesses of all sizes.” Source: RevenueBase Database · checked Sep 18, 2026
15	Inova Energy Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	7 contacts →
	Strong evidence “Inova Energy Group is a certified WBE offering management consulting, strategic planning, and project delivery solutions in the areas of energy and sustainability.” Source: RevenueBase Database · checked Sep 18, 2026
16	RXSUN	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	6 contacts →
	Strong evidence “RxSun is a leading residential solar energy provider headquartered in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 18, 2026
17	E4, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	5 contacts →
	Partial evidence “E4 LLC is a trusted advisor to C&I and municipal clients navigating the evolving clean energy landscape.” Source: RevenueBase Database · checked Sep 18, 2026
18	Global Energy Enterprises, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	4 contacts →
	Partial evidence “Global Energy is a WBE Chicago-based Energy Management Firm with 15 years serving the Energy needs of commercial clients throughout Illinois and seven other US states.” Source: RevenueBase Database · checked Sep 18, 2026
19	Element Energy Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	3 contacts →
	Partial evidence “The Element Energy team has successfully deployed over 2.5 million square feet of renewable energy systems in the greater Chicago-land area using a combination of geothermal heat…” Source: RevenueBase Database · checked Sep 18, 2026
20	Atlas Resource Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	3 contacts →
	Indirect evidence “Atlas Resource Group helps property owners monetize the value of their land or business by providing them with renewable opportunities.” Source: RevenueBase Database · checked Sep 18, 2026
21	Reenergy Solutions LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	2 contacts →
	Partial evidence “ReEnergy Solutions is dedicated to the advancement of clean energy through the development and management of hydrogen refueling stations and production plants.” Source: RevenueBase Database · checked Sep 18, 2026
22	Enovation Partners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	1 contacts →
	Partial evidence “The energy industry is changing Enovation Partners provides energy, utility and infrastructure clients with the technical, regulatory, strategic and operational experience…” Source: RevenueBase Database · checked Sep 18, 2026
23	Marsim Energy LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	1 contacts →
	Strong evidence “We provide engineering, consulting, and technical advisory services to support assets owners, developers, contractors, and investors on various energy projects.” Source: RevenueBase Database · checked Sep 18, 2026
24	SKY High Sales And Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	1 contacts →
	Indirect evidence “Unlocking the Potential of Your Rooftop Projects with Expertise and Convenience With a rich history in the rooftop market, we stand ready to serve your needs like never before.” Source: RevenueBase Database · checked Sep 18, 2026
25	ALL Bright Solar	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 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: solar energy consulting 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 solar energy consulting companies.
Partial evidence: Its own public description names part of solar energy consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar energy consulting 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 25 of 74 solar energy consulting companies based in Chicago, United States

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Solar energy consulting companies based in Chicago, United States at a glance

As of Sep 18, 2026

32.0%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

236.5%Largest-city concentration · Houston

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 74 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 solar energy consulting 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 Chicago, United States whose own description of what they do matches “solar energy consulting 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 solar energy consulting 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 solar energy consulting companies, and records with no verified work email. Companies headquartered outside Chicago 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, 174 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 18, 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.

Solar energy consulting 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 solar energy consulting 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 solar energy consulting companies are there based in Chicago, United States?

RevenueBase identified 74 solar energy consulting companies headquartered in Chicago, 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?

Navigate Power, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most solar energy consulting companies?

Houston leads with 175 headquartered companies, followed by New York (134) and San Diego (112).

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 174 verified decision-maker contacts tracked across these 74 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 18, 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.