Company lists · Data refreshed September 2026

Top 25 Control panel builders based in the United States

Name: Control panel builders based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 976 companies tracked

RevenueBase identified 976 control panel builders headquartered in the United States as of September 2026 and tracks 11,679 professional contacts across them, including 4,398 with verified work emails. Houston is the largest hub.

This list covers control panel builders headquartered in the 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 19, 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 19, 2026 86% judged on-target in blind review

976Companies

11,679Contacts tracked

4,398Verified emails

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The 25 largest control panel builders based in the United States

Ranked by team size

Top 25 of 976 control panel builders based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to control panel builders: 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	Tesco Controls	Partial evidence	Sacramento, CA, United StatesHQ checked Sep 19, 2026	201-500	313 contacts →
	Partial evidence “Tesco Controls, a UFT Company, is a full service systems integrator and original equipment manufacturer specializing in the WATER/WASTEWATER, TRANSPORTATION and ELECTRIC UTILITY…” Source: RevenueBase Database · checked Sep 19, 2026
2	Ermco, INC	Indirect evidence	Greenwood, IN, United StatesHQ checked Sep 19, 2026	201-500	304 contacts →
	Indirect evidence “From our beginning in 1962 as a small electrical maintenance company in downtown Indianapolis with a staff of three, ERMCO, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
3	Koops Automation Systems	Indirect evidence	Holland, MI, United StatesHQ checked Sep 19, 2026	201-500	277 contacts →
	Indirect evidence “Specializing in factory automation systems, Koops designs and builds innovative special machines and automated equipment for leading, world-class manufacturers across a broad…” Source: RevenueBase Database · checked Sep 19, 2026
4	MKD Electric	Partial evidence	Elgin, IL, United StatesHQ checked Sep 19, 2026	201-500	245 contacts →
	Partial evidence “MKD Electric is one of the Midwest’s largest full-service merit shop industrial electrical contractors, specializing in instrumentation and control systems integration.” Source: RevenueBase Database · checked Sep 19, 2026
5	Design Ready Controls	Indirect evidence	Brooklyn Park, MN, United StatesHQ checked Sep 19, 2026	201-500	213 contacts →
	Indirect evidence “DRIVEN BY DATA.” Source: RevenueBase Database · checked Sep 19, 2026
6	Vertech	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 19, 2026	201-500	175 contacts →
	Partial evidence “Vertech is an industrial control systems integration firm providing a complete range of engineering and technical services.” Source: RevenueBase Database · checked Sep 19, 2026
7	Linear Controls	Partial evidence	Lafayette, LA, United StatesHQ checked Sep 19, 2026	51-200	146 contacts →
	Partial evidence “Linear Controls, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
8	Control System Integrators	Partial evidence	Lansing, MI, United StatesHQ checked Sep 19, 2026	51-200	138 contacts →
	Partial evidence “We specialize in designing and implementing turnkey industrial controls and automation systems.” Source: RevenueBase Database · checked Sep 19, 2026
9	Alliance Automation, LLC	Indirect evidence	Van Wert, OH, United StatesHQ checked Sep 19, 2026	51-200	127 contacts →
	Indirect evidence “Simply put, we design and build the machines that enable our customers to build their products.” Source: RevenueBase Database · checked Sep 19, 2026
10	Pieper Automation	Strong evidence	New Berlin, WI, United StatesHQ checked Sep 19, 2026	51-200	126 contacts →
	Strong evidence “Pieper Automation specializes in Systems Integration, Control Systems, Custom Machines, Control Panels and Engineered Solutions.” Source: RevenueBase Database · checked Sep 19, 2026
11	Indicon LLC	Strong evidence	Sterling Heights, MI, United StatesHQ checked Sep 19, 2026	51-200	125 contacts →
	Strong evidence “Indicon is the leading Control System Integrator and one of the largest, most technologically advanced, UL Certified Panel Builders in the Industry.” Source: RevenueBase Database · checked Sep 19, 2026
12	PCX Corporation	Partial evidence	Clayton, NC, United StatesHQ checked Sep 19, 2026	201-500	118 contacts →
	Partial evidence “KWs: PCX, PCX Corporation, electrical panels PCX corporation manufactures prefabricated electrical panels and power distribution systems, including integrated switchboards for…” Source: RevenueBase Database · checked Sep 19, 2026
13	Kasa Companies	Partial evidence	Salina, KS, United StatesHQ checked Sep 19, 2026	51-200	117 contacts →
	Partial evidence “Since 1974, Kasa has been providing turnkey industrial controls and automation engineering expertise to a variety of manufacturers including the automotive, grain handling, food…” Source: RevenueBase Database · checked Sep 19, 2026
14	Premier Automation LLC	Strong evidence	Monroeville, PA, United StatesHQ checked Sep 19, 2026	51-200	113 contacts →
	Strong evidence “Premier Automation is an industry leading engineered solutions company focused on providing best-in-class automation, drive, robotics, electrical control solutions, panel building…” Source: RevenueBase Database · checked Sep 19, 2026
15	ELM Electrical, INC	Indirect evidence	Westfield, MA, United StatesHQ checked Sep 19, 2026	51-200	105 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
16	IS International Services, LLC	Partial evidence	Lawrenceville, GA, United StatesHQ checked Sep 19, 2026	51-200	104 contacts →
	Partial evidence “IS International Services, LLC (IS) is a controls system integrator, providing solutions and services globally.” Source: RevenueBase Database · checked Sep 19, 2026
17	States Manufacturing Corporation	Indirect evidence	Champlin, MN, United StatesHQ checked Sep 19, 2026	51-200	95 contacts →
	Indirect evidence “Our mission at States Manufacturing is to make custom electrical and metal products that help companies in a broad spectrum of industries deliver better results for their…” Source: RevenueBase Database · checked Sep 19, 2026
18	Soap Engineering, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	11-50	87 contacts →
	Indirect evidence “We have earned a reputation as a global leader in Design/Build & Systems Integration for more than 30 years.” Source: RevenueBase Database · checked Sep 19, 2026
19	Cates Control Systems	Partial evidence	Plano, TX, United StatesHQ checked Sep 19, 2026	51-200	79 contacts →
	Partial evidence “Cates Control Systems has been providing automation and control products to manufacturing companies for over 40 years.” Source: RevenueBase Database · checked Sep 19, 2026
20	Telstar Instruments	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “Telstar Instruments INc.” Source: RevenueBase Database · checked Sep 19, 2026
21	Shoreline Power Services, INC	Indirect evidence	Williamsburg, MI, United StatesHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “Shoreline Power Services is headquartered in Michigan with offices in Williamsburg, Grand Rapids and Cadillac.” Source: RevenueBase Database · checked Sep 19, 2026
22	Northwind Technical Services	Partial evidence	Sabetha, KS, United StatesHQ checked Sep 19, 2026	51-200	73 contacts →
	Partial evidence “NorthWind is a leading control system integrator specializing in delivering cutting-edge process controls and automation solutions to manufacturers worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
23	Industrial Power Solutions	Indirect evidence	Glendale, AZ, United StatesHQ checked Sep 19, 2026	51-200	72 contacts →
	Indirect evidence “IPS is a versatile company that provides practical solutions across industries.” Source: RevenueBase Database · checked Sep 19, 2026
24	Aerospec, INC	Partial evidence	Chandler, AZ, United StatesHQ checked Sep 19, 2026	51-200	71 contacts →
	Partial evidence “Since 1982, AeroSpec has delivered custom automation and control systems for industries embracing advanced manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026
25	Huffman Engineering,inc	Indirect evidence	Lincoln, NE, United StatesHQ checked Sep 19, 2026	51-200	64 contacts →
	Indirect evidence “Huffman Engineering Inc.” Source: RevenueBase Database · checked Sep 19, 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: control panel builders. 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 control panel builders.
Partial evidence: Its own public description names part of control panel builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name control panel builders. 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 976 control panel builders based in the United States

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Control panel builders based in the United States at a glance

As of Sep 19, 2026

37.7%Verified-email coverage

12.0Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

448

11-50

393

51-200

111

201-500

501-1,000

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 976 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 control panel builders, 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 the United States whose own description of what they do matches “control panel builders”. 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 control panel builders), 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 control panel builders, and records with no verified work email. Companies headquartered outside United States 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, 4,398 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 19, 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.

Control panel builders by metro

Control panel builders in Houston28

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 control panel builders, 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 control panel builders are there based in the United States?

RevenueBase identified 976 control panel builders headquartered in the 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?

Tesco Controls, headquartered in Sacramento, tops this list with the largest team on record.

Which city has the most control panel builders?

Houston leads with 28 headquartered companies, followed by Cincinnati (9) and Dallas (7).

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 4,398 verified decision-maker contacts tracked across these 976 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 19, 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.