Company lists · Data refreshed September 2026

Top 25 Solar developers based in Chicago, United States

Name: Solar developers 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 77 companies tracked

RevenueBase identified 77 solar developers headquartered in Chicago, United States as of September 2026 and tracks 3,304 professional contacts across them, including 2,154 with verified work emails. New York is the largest hub.

This list covers solar developers 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

77Companies

3,304Contacts tracked

2,154Verified emails

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The 25 largest solar developers based in Chicago, United States

Ranked by team size

Top 25 of 77 solar developers 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 developers: 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	Invenergy	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1,001-5,000	2,408 contacts →
	Partial evidence “Invenergy is North America’s largest privately held developer, owner, and operator of innovative, reliable power infrastructure.” Source: RevenueBase Database · checked Sep 18, 2026
2	Nautilus Solar Energy, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	51-200	117 contacts →
	Partial evidence “Nautilus Solar Energy®, LLC is a leading community solar company, providing clean energy to residential and commercial customers in local communities.” Source: RevenueBase Database · checked Sep 18, 2026
3	Hecate Energy LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	63 contacts →
	Partial evidence “Hecate Energy is a leading developer of power generation and storage solutions in the United States.” Source: RevenueBase Database · checked Sep 18, 2026
4	Sunvest Solar, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	51-200	60 contacts →
	Indirect evidence “Cultivating Access to Clean Energy for North America.” Source: RevenueBase Database · checked Sep 18, 2026
5	Ranger Power	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	57 contacts →
	Indirect evidence “Ranger Power is a renewable energy development company.” Source: RevenueBase Database · checked Sep 18, 2026
6	Reactivate	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	51-200	50 contacts →
	Indirect evidence “Reactivate, an Invenergy company, is a mission-driven organization that develops, owns, and operates renewable energy solutions that are designed to improve quality of life for…” Source: RevenueBase Database · checked Sep 18, 2026
7	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
8	Cultivate Power	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	35 contacts →
	Partial evidence “Cultivate Power is a distributed solar and storage development company.” Source: RevenueBase Database · checked Sep 18, 2026
9	Endurant Energy	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	35 contacts →
	Indirect evidence “Endurant Energy designs, builds, and operates reliable, resilient, clean and cost-effective on-site energy infrastructure solutions across the US.” Source: RevenueBase Database · checked Sep 18, 2026
10	Trajectory Energy Partners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	34 contacts →
	Partial evidence “Trajectory brings communities, organizations, and landowners together to develop quality solar projects that contribute to local economic growth and a sustainable energy future.” Source: RevenueBase Database · checked Sep 18, 2026
11	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
12	NEW Generation Power	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	32 contacts →
	Indirect evidence “Our vision is to provide clean, reliable power to international markets, to meet rapidly rising demand through efficient, locally appropriate technologies.” Source: RevenueBase Database · checked Sep 18, 2026
13	Pivotgen	Strong evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	29 contacts →
	Strong evidence “PivotGen is a developer of wind and solar energy projects throughout the United States.” Source: RevenueBase Database · checked Sep 18, 2026
14	Windfree Solar	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	22 contacts →
	Partial 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
15	Glidepath Power Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	16 contacts →
	Partial evidence “GlidePath is a leading independent developer and owner of advanced energy systems.” Source: RevenueBase Database · checked Sep 18, 2026
16	Fresh Coast Solar	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	15 contacts →
	Partial 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
17	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
18	Solar Simplified	Partial evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	13 contacts →
	Partial evidence “Solar Simplified is driving accessibility, transparency and mainstream adoption of solar energy.” Source: RevenueBase Database · checked Sep 18, 2026
19	548 Enterprise	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	12 contacts →
	Indirect evidence “The 548 Enterprise philosophy is to redevelop metropolitan communities by utilizing renewable and sustainable technologies, allowing us to create savings for families, lower…” Source: RevenueBase Database · checked Sep 18, 2026
20	Reverse Energy Solutions Corp	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	1-10	11 contacts →
	Indirect evidence “Reverse Energy Solutions (RES), founded in 2022 is a pioneering startup dedicated to environmentally conscious recycling solutions for photovoltaic (PV) modules.” Source: RevenueBase Database · checked Sep 18, 2026
21	Econergy	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	11 contacts →
	Indirect evidence “Renewable energy development, financing, and energy portfolio management.” Source: RevenueBase Database · checked Sep 18, 2026
22	Bluestar Energy Capital	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 18, 2026	11-50	10 contacts →
	Indirect evidence “The energy transition is accelerating, broadening, and deepening.” Source: RevenueBase Database · checked Sep 18, 2026
23	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
24	Intelligent Generation	Indirect evidence	Chicago, United StatesHQ checked Sep 18, 2026	1-10	9 contacts →
	Indirect evidence “Electricity is crucial to your business.” Source: RevenueBase Database · checked Sep 18, 2026
25	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

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 developers. 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 developers.
Partial evidence: Its own public description names part of solar developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar developers. 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 77 solar developers based in Chicago, United States

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Solar developers based in Chicago, United States at a glance

As of Sep 18, 2026

65.2%Verified-email coverage

42.9Average contacts per company

1-10Median size (employees)

200.0%Largest-city concentration · New York

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 77 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 developers, 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 developers”. 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 developers), 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 developers, 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, 2,154 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 developers 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 developers, 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 developers are there based in Chicago, United States?

RevenueBase identified 77 solar developers 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?

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

Which city has the most solar developers?

New York leads with 154 headquartered companies, followed by San Diego (137) and Houston (136).

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 2,154 verified decision-maker contacts tracked across these 77 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.