Company lists · Data refreshed September 2026

Top 25 Renewable energy engineers based in Chicago, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 64 companies tracked

RevenueBase identified 64 renewable energy engineers headquartered in Chicago, United States as of September 2026 and tracks 554 professional contacts across them, including 227 with verified work emails. Houston is the largest hub.

This list covers renewable energy engineers 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 17, 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 17, 2026 86% judged on-target in blind review

64Companies

554Contacts tracked

227Verified emails

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The 25 largest renewable energy engineers based in Chicago, United States

Ranked by team size

Top 25 of 64 renewable energy engineers based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy engineers: 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	Ranger Power	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	57 contacts →
	Strong evidence “Ranger Power is a renewable energy development company.” Source: RevenueBase Database · checked Sep 17, 2026
2	Verde Solutions	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	47 contacts →
	Strong 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 17, 2026
3	Endurant Energy	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	35 contacts →
	Partial 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 17, 2026
4	SRS Sustainment And Restoration Services	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	34 contacts →
	Partial evidence “SRS provides engineering, science, and construction services to deliver sustainable facility design and construction including the restoration of previously used sites for…” Source: RevenueBase Database · checked Sep 17, 2026
5	NEW Generation Power	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
6	National Retrofitting Group, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	30 contacts →
	Partial 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 17, 2026
7	Pivotgen	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	29 contacts →
	Partial evidence “PivotGen is a developer of wind and solar energy projects throughout the United States.” Source: RevenueBase Database · checked Sep 17, 2026
8	Windfree Solar	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
9	Envision Marketing	Indirect evidence	Chicago, United StatesHQ checked Sep 17, 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 17, 2026
10	Vader National Electric	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
11	360 Energy Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial 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 17, 2026
12	Caliber Engineering Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “At Caliber Engineering Solutions, we blend engineering expertise with efficient project management to deliver top-tier power system solutions.” Source: RevenueBase Database · checked Sep 17, 2026
13	Fresh Coast Solar	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
14	ONE Energy Solutions, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	51-200	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
15	Econergy	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “Renewable energy development, financing, and energy portfolio management.” Source: RevenueBase Database · checked Sep 17, 2026
16	Ailey Solar Electric, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “Ailey Solar is a solar PV designer and installer.” Source: RevenueBase Database · checked Sep 17, 2026
17	Hardt Electric, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
18	Option ONE Energy	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “Option One Energy provides modern energy solutions for businesses of all sizes.” Source: RevenueBase Database · checked Sep 17, 2026
19	Inova Energy Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1-10	7 contacts →
	Partial 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 17, 2026
20	RXSUN	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “RxSun is a leading residential solar energy provider headquartered in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 17, 2026
21	E4, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
22	Element Energy Consulting	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1-10	3 contacts →
	Strong 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 17, 2026
23	Madison Street Energy LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1-10	3 contacts →
	Strong evidence “Madison Street Energy (MSE) is a premier land acquisition firm uniquely dedicated to the renewable energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
24	Reenergy Solutions LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
25	Soleon	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1-10	1 contacts →
	Partial evidence “Here at Soleon we are dedicated in guiding our clients towards the optimal solar energy solution.” Source: RevenueBase Database · checked Sep 17, 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: renewable energy engineers. 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 renewable energy engineers.
Partial evidence: Its own public description names part of renewable energy engineers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy engineers. 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 64 renewable energy engineers based in Chicago, United States

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Renewable energy engineers based in Chicago, United States at a glance

As of Sep 17, 2026

41.0%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

179.7%Largest-city concentration · Houston

Sep 17, 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 Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 64 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 renewable energy engineers, 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 “renewable energy engineers”. 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 renewable energy engineers), 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 renewable energy engineers, 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, 227 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 17, 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.

Renewable energy engineers 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 renewable energy engineers, 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 renewable energy engineers are there based in Chicago, United States?

RevenueBase identified 64 renewable energy engineers 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?

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

Which city has the most renewable energy engineers?

Houston leads with 115 headquartered companies, followed by New York (100) and San Diego (74).

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 227 verified decision-maker contacts tracked across these 64 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 17, 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.