Company lists · Data refreshed September 2026

Top 25 Low voltage contractors based in the United States

Name: Low voltage contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 4,976 companies tracked

RevenueBase identified 4,976 company matches for low voltage contractors associated with the United States as of September 2026 and tracks 45,486 professional contacts across them, including 13,258 with verified work emails. Houston is the largest hub.

This list covers company matches for low voltage contractors associated with the 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 September 17, 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 Sep 17, 2026 How this list was built

4,976Companies

45,486Contacts tracked

13,258Verified emails

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The 25 largest low voltage contractors based in the United States

Ranked by team size

Top 25 of 4,976 company matches for low voltage contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Outsource	Exact match	El Segundo, CA, United StatesHQ recorded Sep 17, 2026	n/a	1,230 contacts →
	Exact match “Outsource is the largest staffing firm in the nation specializing in the placement of low voltage and electrical talent.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Elec-Tech Electrical Contractors	Exact match	Long Beach, CA, United StatesHQ recorded Sep 17, 2026	n/a	782 contacts →
	Exact match “WELCOME TO OUR WEBSITE!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Alterman, INC	Exact match	Live Oak, TX, United StatesHQ recorded Sep 17, 2026	501-1,000	597 contacts →
	Exact match “Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Inglett & Stubbs	Exact match	Mableton, GA, United StatesHQ recorded Sep 17, 2026	501-1,000	459 contacts →
	Exact match “Inglett & Stubbs LLC is a recognized leader in the electrical construction industry today.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Guarantee Electrical Company	Exact match	St. Louis, MO, United StatesHQ recorded Sep 17, 2026	501-1,000	419 contacts →
	Exact match “A full-service electrical contractor since 1902, providing capability, performance, and legendary innovation in new construction, design-build, low-voltage systems, energy…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Marathon Electrical Contractors	Exact match	Irondale, AL, United StatesHQ recorded Sep 17, 2026	501-1,000	337 contacts →
	Exact match “Marathon Electrical Contractors has been in business since 1987 and is a full service electrical contracting company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	HCI Systems, INC	Exact match	Ontario, CA, United StatesHQ recorded Sep 17, 2026	501-1,000	303 contacts →
	Exact match “HCI Systems Inc, is California’s premier low voltage technology and Sprinkler company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	AFA Protective Systems, INC	Exact match	Syosset, NY, United StatesHQ recorded Sep 17, 2026	201-500	302 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Wilson Electric Services Corp	Exact match	Tempe, AZ, United StatesHQ recorded Sep 17, 2026	501-1,000	283 contacts →
	Exact match “We are more than an Electrical Contractor…We’re Your Partner As employee-owners we build your project as if it were our own.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Staff Electric Co. INC	Exact match	Po Box 917 Butler, WI, United StatesHQ recorded Sep 17, 2026	201-500	248 contacts →
	Exact match “Charlie Staff started his electrical career at the turn of the 20th century, installing residential phone lines and wet doorbells in the City of Milwaukee.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	B&d Industries, INC	Exact match	Albuquerque, NM, United StatesHQ recorded Sep 17, 2026	1,001-5,000	241 contacts →
	Exact match “After serving clients for over 60 years, we are more than just a company – we are a service business.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Electra Link, INC	Exact match	Spring, TX, United StatesHQ recorded Sep 17, 2026	201-500	223 contacts →
	Exact match “At Electra Link, you’ll find a place where technology, engineering and innovation come together to reinvent the way people think about Network Structured Cabling Systems and Audio…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Guardian Security Systems, INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 17, 2026	51-200	220 contacts →
	Exact match “Guardian Security Systems is the leader in residential and commercial life safety solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	APG Electric, LLC	Exact match	Clearwater, FL, United StatesHQ recorded Sep 17, 2026	201-500	203 contacts →
	Exact match “APG is a full-service electrical and systems contractor serving customers across West Central and Central Florida since 1984.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Linkus Enterprises	Exact match	Fresno, CA, United StatesHQ recorded Sep 17, 2026	201-500	203 contacts →
	Exact match “LinkUs is a full service low-voltage integration firm with 21 offices in California, Oregon and Nevada.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Wasatch Electric	Exact match	Salt Lake City, UT, United StatesHQ recorded Sep 17, 2026	201-500	200 contacts →
	Exact match “In business for over 100 years, Wasatch Electric provides full-service electrical contracting.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Hilscher-Clarke Electric Company	Exact match	Canton, OH, United StatesHQ recorded Sep 17, 2026	201-500	196 contacts →
	Exact match “Hilscher-Clarke Electric Company is a full service electrical contractor, with more than 100 years experience in the commercial, industrial, and residential markets.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	F.D. Hayes Electric	Exact match	Lansing, United StatesHQ recorded Sep 17, 2026	51-200	193 contacts →
	Exact match “Electrical; Fire Alarm; Kitchen equipment; low voltage network, voice and fiber optic cabling; AV; Sound and Security services for residential, commercial and industrial customers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Trio Electric	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	201-500	189 contacts →
	Exact match “Trio Electric was founded in 2003.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Convergint Technologies	Exact match	Wenatchee, WA, United StatesHQ recorded Sep 17, 2026	n/a	183 contacts →
	Exact match “Convergint Technologies is an industry-leading systems integrator that designs, installs, and services electronic security, fire alarm, and life safety systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	EIG Electrical Systems	Exact match	Redwood City, CA, United StatesHQ recorded Sep 17, 2026	201-500	169 contacts →
	Exact match “Evergreen Innovation Group (EIG) is part of the DPR family of companies, which is closing the gap between design and construction with an integrated collection of products and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Gurtz Electric CO	Exact match	Arlington Heights, IL, United StatesHQ recorded Sep 17, 2026	501-1,000	167 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Progressive Technologies, INC	Exact match	Memphis, TN, United StatesHQ recorded Sep 17, 2026	201-500	158 contacts →
	Exact match “Established in 1985 as a low voltage cabling contractor, Progressive Technologies has grown from a mid-south company to a nationwide provider offering solutions to commercial and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Benfield Electric	Exact match	Aberdeen, MD, United StatesHQ recorded Sep 17, 2026	51-200	153 contacts →
	Exact match “Benfield is a family-owned electrical contractor that, for 50 years, has been the go-to choice for commercial builders, home builders and homeowners who know they can count on…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	EKC Enterprises INC	Exact match	Fresno, CA, United StatesHQ recorded Sep 17, 2026	201-500	151 contacts →
	Exact match “EKC Enterprises is a leader in Technology integrations.” Recorded in the RevenueBase company graph · Sep 17, 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 “low voltage contractors”. 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 4,976 low voltage contractors based in the United States

See the full list, filter by size, metro and specialty, and access 13,258 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Low voltage contractors based in the United States at a glance

As of Sep 17, 2026

29.1%Verified-email coverage

9.1Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,482

11-50

1,829

51-200

526

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 4,976 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 the United States whose business descriptions match “low voltage contractors” 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 13,258 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 September 17, 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.

Low voltage contractors by metro

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 “low voltage contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many low voltage contractors are there based in the United States?

RevenueBase identified 4,976 company matches for low voltage contractors associated with the United States as of September 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?

Outsource tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most low voltage contractors?

Houston leads with 83 company records, followed by New York (71) and Las Vegas (44).

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 13,258 professional contacts with verified work emails tracked across these 4,976 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 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 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.