Company lists · Data refreshed October 2026

Top 25 Energy efficient infrastructure consultants based in Chicago, United States

Name: Energy efficient infrastructure consultants based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 81 companies tracked

RevenueBase identified 81 company matches for energy efficient infrastructure consultants associated with Chicago, United States as of October 2026 and tracks 1,619 professional contacts across them, including 718 with verified work emails. Across the United States, New York is the largest hub for this category (182 companies); Chicago has 81.

This list covers company matches for energy efficient infrastructure consultants associated with Chicago, 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 12, 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 12, 2026 How this list was built

81Companies

1,619Contacts tracked

718Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest energy efficient infrastructure consultants based in Chicago, United States

Ranked by team size

Top 25 of 81 company matches for energy efficient infrastructure consultants based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Primera Engineers	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	201-500	369 contacts →
	Exact match “Primera Engineers is a mid-size, full-service, woman-owned (WBE) engineering design and consulting firm specializing in four areas of expertise: buildings, transportation…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	ESD NOW Stantec Consulting Services	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	201-500	186 contacts →
	Exact match “A global company, ESD is a leader in Improving Society Through the Built Environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	SUMAC	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	51-200	175 contacts →
	Exact match “SUMAC is an architecture, engineering, and consulting firm that promotes sustainability as the key element to increasing the profitability of our clients and partners.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	KDM Engineering	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	51-200	115 contacts →
	Exact match “Founded upon a vision of challenging and changing the energy infrastructure to help light up the world, KDM specializes in engineering consulting and design, program and project…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Singh Associates, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	51-200	115 contacts →
	Exact match “For more than 30 years, SINGH + Associates has been meeting and exceeding our clients’ expectations for high quality planning, design and engineering services delivered with care…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Adrian Smith Gordon Gill Architecture	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	51-200	93 contacts →
	Exact match “Adrian Smith + Gordon Gill Architecture is dedicated to the design of high-performance, sustainable architecture on an international scale.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Greenprint Partners	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	38 contacts →
	Exact match “Greenprint Partners is an award-winning consulting firm specializing in community-centered environmental infrastructure.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Carbon Solutions Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	36 contacts →
	Exact match “Carbon Solutions Group was founded in Chicago, Illinois, in 2006.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	SRS Sustainment And Restoration Services	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	34 contacts →
	Exact match “SRS provides engineering, science, and construction services to deliver sustainable facility design and construction including the restoration of previously used sites for…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Antero Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	32 contacts →
	Exact match “Civil Engineering \| Urban & Rural Planning \| Economic Development \| Grant Services \| Branding & Marketing \| Environmental Antero Group is an interdisciplinary firm that integrates…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	National Retrofitting Group, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	30 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Aero Performance Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	51-200	28 contacts →
	Exact match “We collaborate with you to develop a comprehensive facility optimization program, blending our engineering expertise with practical field experience and advanced technology.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Cyclone Energy Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	28 contacts →
	Exact match “Cyclone Energy Group specializes in building design and operation optimization.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Vader National Electric	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	51-200	24 contacts →
	Exact match “Mission Help people design, build, monitor, maintain, and optimize their energy and information systems.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	WMA Consulting Engineers	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	51-200	22 contacts →
	Exact match “At WMA Consulting Engineers, we believe that smart engineering leads to a better world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Verde Energy Efficiency Experts	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	22 contacts →
	Exact match “Verde has a simple purpose - to save Chicago businesses and non profits energy and money.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	360 Energy Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	21 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Carlson Environmental, A Nova Group, GBC Company	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	18 contacts →
	Exact match “Carlson Environmental, a Nova Group, GBC Company, was originally founded in 1988 by Dr.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	ECO Achievers	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	15 contacts →
	Exact match “Eco Achievers helps property owners smartly transform their buildings into healthy, resilient and efficient places.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Elcora Solutions	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “Elcora Engineering Solutions stands tall as a trailblazer in the energy sector.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Hardt Electric, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Hardt Electric is a respected, industry leading electrical contractor based in Chicago, Illinois.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Husarch	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match “HUSARCH collaborates with architectural, energy, and construction industry leaders to develop actionable, data driven solutions.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Inova Energy Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	1-10	8 contacts →
	Exact match “Inova Energy Group is a certified WBE offering management consulting, strategic planning, and project delivery solutions in the areas of energy and sustainability.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Option ONE Energy	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	7 contacts →
	Exact match “Option One Energy provides modern energy solutions for businesses of all sizes.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	The Astor Company	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “The Astor Company opened its doors almost 20 years ago as a cardboard recycling company, beginning a journey of continuous adaptation and evolution which today finds a world-class…” Recorded in the RevenueBase company graph · Oct 12, 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 “energy efficient infrastructure consultants”. 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 25 of 81 energy efficient infrastructure consultants based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 718 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Energy efficient infrastructure consultants based in Chicago, United States at a glance

As of Oct 12, 2026

44.3%Verified-email coverage

20.0Average contacts per company

11-50Median size (employees)

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 81 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 Chicago, United States whose business descriptions match “energy efficient infrastructure consultants” 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 718 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 12, 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.

Energy efficient infrastructure consultants 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 “energy efficient infrastructure consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficient infrastructure consultants are there based in Chicago, United States?

RevenueBase identified 81 company matches for energy efficient infrastructure consultants associated with Chicago, 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?

Primera Engineers 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 energy efficient infrastructure consultants?

New York leads the United States with 182 company records, followed by Houston (118) and Chicago (81).

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 718 professional contacts with verified work emails tracked across these 81 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 12, 2026.

Ready to reach these companies? Verified emails and direct dials for all 81 energy efficient infrastructure consultants based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

Energy efficient infrastructure consultants by geography

Browse the directory

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.