Company lists · Data refreshed September 2026

Top 25 Electrical systems integration contractors based in Chicago, United States

Name: Electrical systems integration contractors 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 56 companies tracked

RevenueBase identified 56 electrical systems integration contractors headquartered in Chicago, United States as of September 2026 and tracks 671 professional contacts across them, including 270 with verified work emails. Across the United States, Houston is the largest hub for this category (240 companies); Chicago has 56.

This list covers electrical systems integration contractors 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

56Companies

671Contacts tracked

270Verified emails

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The 25 largest electrical systems integration contractors based in Chicago, United States

Ranked by team size

Top 25 of 56 electrical systems integration contractors 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 systems integration contractors: 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	REX Electric & Technologies, LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	129 contacts →
	Strong 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
2	Maron Electric Company	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	79 contacts →
	Strong evidence “Maron is an innovative force in the electrical industry with advanced products and systems for the most challenging applications.” Source: RevenueBase Database · checked Sep 29, 2026
3	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
4	Taylor Electric Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	43 contacts →
	Partial evidence “Founded in 1922, Taylor Electric Company is the oldest African American owned and operated construction firm in Chicago.” Source: RevenueBase Database · checked Sep 29, 2026
5	Premiere Systems	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	39 contacts →
	Partial evidence “Since 1995, Premiere Systems has been at the forefront of home technology creating exceptional living environments that extend from exterior to interior to infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026
6	Amped I LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	36 contacts →
	Indirect 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
7	Sharlen Electric Company	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	25 contacts →
	Strong evidence “Sharlen is a third-generation electrical contractor with more than four decades of service to the Greater Chicago area and Northwest Indiana.” Source: RevenueBase Database · checked Sep 29, 2026
8	G&m Electrical Contractors	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	16 contacts →
	Strong evidence “G&M Electrical Contractors is a full-service, union electrical contractor based in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 29, 2026
9	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
10	Blade Electric & Technologies LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “Electrical, Fire Alarm, Voice Data and Security Construction Company” Source: RevenueBase Database · checked Sep 29, 2026
11	AKA Electric INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
12	Hardt Electric, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Strong evidence “Hardt Electric is a respected, industry leading electrical contractor based in Chicago, Illinois.” Source: RevenueBase Database · checked Sep 29, 2026
13	NDP Electric, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	8 contacts →
	Strong evidence “Contractors And Designers of Electrical Systems Commercial and Retail Specilists NDP Electric, Inc.” Source: RevenueBase Database · checked Sep 29, 2026
14	Rocha Electric Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “We opened our doors in February 2019 after 19 years of experience as a commercial and industrial electrician.” Source: RevenueBase Database · checked Sep 29, 2026
15	Gulln Energy	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Strong evidence “Electrical contractor specializing in EV charging installation services as well as providing infrastructure installation for solar, battery and general contractor services” Source: RevenueBase Database · checked Sep 29, 2026
16	Terra Bridge Innovations In Technology	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	6 contacts →
	Strong evidence “INFRASTRUCTURE TO ARTWORK TerraBridge Innovations in Technology is the industry leading expert in special systems integration.” Source: RevenueBase Database · checked Sep 29, 2026
17	Staylitt Electric	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “StayLitt Electric has decades of experience in the electrical industry, completing projects on all levels of difficulty in the residential, commercial, and industrial work field.” Source: RevenueBase Database · checked Sep 29, 2026
18	Idcs, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “IDCS, LLC is a WBE/FBE certified electrical engineering firm looking to provide both electrical and instrumentation design and construction services.” Source: RevenueBase Database · checked Sep 29, 2026
19	The Totus Group, LLC	Indirect evidence	Chicago, United StatesHQ checked Sep 29, 2026	51-200	4 contacts →
	Indirect evidence “The Totus Group, LLC is an IT Facility Integrator, program manager and consulting firm, it is also the holding company for FIX Consulting, LLC, Automatic Building Controls, LLC…” Source: RevenueBase Database · checked Sep 29, 2026
20	Connecteriors, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	3 contacts →
	Partial evidence “Connecteriors, LLC is a Chicago-based company that designs, installs and supports high-end audio, video, IP networks, lighting control, automation, and control systems.” Source: RevenueBase Database · checked Sep 29, 2026
21	Magia Digital	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “We sell, install & service electronic equipment for commercial, residential and industrial.” Source: RevenueBase Database · checked Sep 29, 2026
22	Montoya Electric LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “Montoya Electric LLC is a fully licensed, bonded, and insured electrical contracting company.” Source: RevenueBase Database · checked Sep 29, 2026
23	Burnham & Company, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	1 contacts →
	Strong evidence “Burnham is Chicago based electrical contractor experienced in commercial and residential work.” Source: RevenueBase Database · checked Sep 29, 2026
24	C & I Power Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “Application and implementation of Critical Power Systems for Commercial and Industrial markets; including Data Centers, Government/Municipalities, Universities, Aviation…” Source: RevenueBase Database · checked Sep 29, 2026
25	Apollo Technology & Cabling	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “Apollo Technology is a low voltage electrical and technology firm.” 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 systems integration contractors. 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 systems integration contractors.
Partial evidence: Its own public description names part of electrical systems integration contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical systems integration contractors. 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 56 electrical systems integration contractors based in Chicago, United States

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Electrical systems integration contractors based in Chicago, United States at a glance

As of Sep 29, 2026

40.2%Verified-email coverage

12.0Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 56 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 systems integration contractors, 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 systems integration contractors”. 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 systems integration contractors), 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 systems integration contractors, 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, 270 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 systems integration contractors 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 systems integration contractors, 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 systems integration contractors are there based in Chicago, United States?

RevenueBase identified 56 electrical systems integration contractors 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?

REX Electric & Technologies, LLC, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most electrical systems integration contractors?

Houston leads the United States with 240 headquartered companies, followed by New York (133) and Los Angeles (79). Chicago has 56.

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 270 verified decision-maker contacts tracked across these 56 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.