Company lists · Data refreshed September 2026

Top 25 Electrical engineering consulting firms based in Chicago, United States

Name: Electrical engineering consulting firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 81 companies tracked

RevenueBase identified 81 electrical engineering consulting firms headquartered in Chicago, United States as of September 2026 and tracks 2,384 professional contacts across them, including 1,085 with verified work emails. Across the United States, Houston is the largest hub for this category (228 companies); Chicago has 81.

This list covers electrical engineering consulting firms 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 29, 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 29, 2026 86% judged on-target in blind review

81Companies

2,384Contacts tracked

1,085Verified emails

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The 25 largest electrical engineering consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 81 electrical engineering consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to electrical engineering consulting firms: 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	HBK Engineering, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	674 contacts →
	Partial evidence “HBK Engineering, LLC a Quanta Services Company is a fully licensed, professional engineering design firm headquartered in downtown Chicago providing civil, environmental…” Source: RevenueBase Database · checked Sep 29, 2026
2	Primera Engineers	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	362 contacts →
	Strong evidence “Primera Engineers is a mid-size, full-service, woman-owned (WBE) engineering design and consulting firm specializing in four areas of expertise: buildings, transportation…” Source: RevenueBase Database · checked Sep 29, 2026
3	ESD NOW Stantec Consulting Services	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	208 contacts →
	Indirect evidence “A global company, ESD is a leader in Improving Society Through the Built Environment.” Source: RevenueBase Database · checked Sep 29, 2026
4	REX Electric & Technologies, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	129 contacts →
	Partial evidence “REX Electric and Technologies is a full-service electrical contractor that prides itself in providing the highest level of service, whether it be installation or design build…” Source: RevenueBase Database · checked Sep 29, 2026
5	KDM Engineering	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	114 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
6	Singh Associates, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	110 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
7	Elara Engineering	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	86 contacts →
	Strong evidence “Elara Engineering is a full-service Mechanical, Electrical, Plumbing, Fire Protection, and Information Technology (MEPFPIT) consulting engineering firm specializing in the…” Source: RevenueBase Database · checked Sep 29, 2026
8	Environmental Design International INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	68 contacts →
	Indirect evidence “Clients can trust Environmental Design International inc.(EDI) to be responsive, demonstrate technical excellence, adhere to the demands of budgets and schedules, and offer…” Source: RevenueBase Database · checked Sep 29, 2026
9	Ciorba Group, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	66 contacts →
	Partial evidence “Ciorba Group has been providing professional engineering services to various state and local governmental agencies for over 95 years.” Source: RevenueBase Database · checked Sep 29, 2026
10	Abco Electrical Construction & Design	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	54 contacts →
	Partial evidence “ABCO offers full service electrical contracting.” Source: RevenueBase Database · checked Sep 29, 2026
11	Amped I LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	36 contacts →
	Partial evidence “Amped I is an innovative design and engineering firm specializing in power infrastructure projects ranging from transmission to distribution and fire protection projects for power…” Source: RevenueBase Database · checked Sep 29, 2026
12	Mcguire Engineers	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	35 contacts →
	Partial evidence “Founded in 1986 in Chicago, McGuire Engineers, Inc.(MEPC) has been providing engineering services to clients worldwide for over 30 years.” Source: RevenueBase Database · checked Sep 29, 2026
13	Mintropy	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	26 contacts →
	Strong evidence “Mintropy is a full-service Mechanical, Electrical, Plumbing, and Energy (MEP) consulting engineering firm specializing in the development, economic valuation, and project…” Source: RevenueBase Database · checked Sep 29, 2026
14	Orion Engineers, Pllc	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	23 contacts →
	Strong evidence “Orion Engineers, PLLC is a civil, structural & construction engineering consulting firm based in the Midwest delivering planning, design, and construction management services to…” Source: RevenueBase Database · checked Sep 29, 2026
15	WMA Consulting Engineers	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	23 contacts →
	Strong evidence “At WMA Consulting Engineers, we believe that smart engineering leads to a better world.” Source: RevenueBase Database · checked Sep 29, 2026
16	Reaghan Engineering	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	23 contacts →
	Partial evidence “Reaghan Engineering is a multi-disciplinary civil engineering consultancy, who work closely with clients across the globe to deliver innovative and cost effective solutions.” Source: RevenueBase Database · checked Sep 29, 2026
17	Callan Consulting Engineers, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	20 contacts →
	Strong evidence “Our Team, Your Building - It’s a Perfect Fit At Callan Consulting Engineers, we provide professional engineering guidance from project inception to post-occupancy, including…” Source: RevenueBase Database · checked Sep 29, 2026
18	360 Energy Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 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 29, 2026
19	Caliber Engineering Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 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 29, 2026
20	CMY Solutions, Llc, Part Of ICF	Indirect evidence	Chicago, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
21	Perry & Associates, LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	13 contacts →
	Strong evidence “Perry & Associates, LLC is a structural engineering firm providing a wide variety of design and technical consulting services.” Source: RevenueBase Database · checked Sep 29, 2026
22	Elevate Consulting Engineers Pllc	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	11 contacts →
	Indirect evidence “We are hiring!” Source: RevenueBase Database · checked Sep 29, 2026
23	Substation Engineering Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	11 contacts →
	Partial evidence “Substation Engineering Solutions LLC is a minority owned engineering firm focused on quality design for power distribution and transmission substations.” Source: RevenueBase Database · checked Sep 29, 2026
24	Diligent Design Group INC	Strong evidence	Chicago, United StatesHQ checked Sep 29, 2026	1-10	10 contacts →
	Strong evidence “DDG is a consulting engineering company based in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 29, 2026
25	Hardt Electric, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “Hardt Electric is a respected, industry leading electrical contractor based in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 29, 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: electrical engineering consulting firms. 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 electrical engineering consulting firms.
Partial evidence: Its own public description names part of electrical engineering consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical engineering consulting firms. 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 81 electrical engineering consulting firms based in Chicago, United States

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Electrical engineering consulting firms based in Chicago, United States at a glance

As of Sep 29, 2026

45.5%Verified-email coverage

29.4Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among electrical engineering consulting firms, 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 “electrical engineering consulting firms”. 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 electrical engineering consulting firms), 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 electrical engineering consulting firms, 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, 1,085 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 29, 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.

Electrical engineering consulting firms 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 electrical engineering consulting firms, 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 electrical engineering consulting firms are there based in Chicago, United States?

RevenueBase identified 81 electrical engineering consulting firms 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?

HBK Engineering, LLC, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most electrical engineering consulting firms?

Houston leads the United States with 228 headquartered companies, followed by New York (190) and Miami (92). Chicago has 81.

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 1,085 verified decision-maker contacts tracked across these 81 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 29, 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.