Company lists · Data refreshed September 2026

Top 25 Enclosure manufacturers based in the United States

Name: Enclosure manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 745 companies tracked

RevenueBase identified 745 enclosure manufacturers headquartered in the United States as of September 2026 and tracks 15,002 professional contacts across them, including 4,323 with verified work emails. Houston is the largest hub.

This list covers enclosure manufacturers 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 16, 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 16, 2026 86% judged on-target in blind review

745Companies

15,002Contacts tracked

4,323Verified emails

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The 25 largest enclosure manufacturers based in the United States

Ranked by team size

Top 25 of 745 enclosure manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to enclosure manufacturers: 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	Rittal LLC	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 16, 2026	501-1,000	918 contacts →
	Indirect evidence “Rittal LLC is the U.S.” Source: RevenueBase Database · checked Sep 16, 2026
2	CST Industries, INC	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 16, 2026	501-1,000	432 contacts →
	Indirect evidence “CST Industries, Inc.(CST™), is the complete storage system provider for engineering and manufacturing professionals in thousands of different industries and applications…” Source: RevenueBase Database · checked Sep 16, 2026
3	Tesco Controls	Partial evidence	Sacramento, CA, United StatesHQ checked Sep 16, 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 16, 2026
4	Charles Industries, An Amphenol Company	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 16, 2026	501-1,000	301 contacts →
	Indirect evidence “Charles Industries, LLC is a diversified manufacturing and technology company serving Wireline, Wireless, Broadband Cable/MSO, Utilities (Energy), and Industrial markets.” Source: RevenueBase Database · checked Sep 16, 2026
5	Global Power Components	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 16, 2026	501-1,000	284 contacts →
	Indirect evidence “Global Power Components has been manufacturing power generation accessories since 1996.” Source: RevenueBase Database · checked Sep 16, 2026
6	Maysteel Industries LLC	Partial evidence	Allenton, WI, United StatesHQ checked Sep 16, 2026	501-1,000	273 contacts →
	Partial evidence “At Maysteel, we support supply chain and procurement leaders with scalable fabrication solutions for data centers and critical infrastructure, including custom enclosures, server…” Source: RevenueBase Database · checked Sep 16, 2026
7	Adalet	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 16, 2026	51-200	240 contacts →
	Strong evidence “ADALET, a Marmon IEI / Berkshire Hathaway company, is a leading manufacturer of explosionproof enclosures and systems, custom aluminum castings, industrial sheet metal and…” Source: RevenueBase Database · checked Sep 16, 2026
8	Allied Moulded Products, INC	Partial evidence	Bryan, OH, United StatesHQ checked Sep 16, 2026	201-500	191 contacts →
	Partial evidence “Allied Moulded Products, Inc.(Allied Moulded) is the Contractor’s Choice of nonmetallic electrical boxes and enclosures in today's residential, commercial and industrial markets.” Source: RevenueBase Database · checked Sep 16, 2026
9	Mclaughlin Body Company	Partial evidence	Moline, IL, United StatesHQ checked Sep 16, 2026	501-1,000	173 contacts →
	Partial evidence “Manufacturer of Industrial/Agricultural Products McLaughlin is a vertically integrated manufacturer Our roots are in automotive, truck and cab products Our strengths are in…” Source: RevenueBase Database · checked Sep 16, 2026
10	Robinson, INC	Indirect evidence	De Pere, WI, United StatesHQ checked Sep 16, 2026	501-1,000	171 contacts →
	Indirect evidence “Robinson’s 950+ employee owners are highly experienced in single-source metal solutions, from engineering to complete custom fabrication.” Source: RevenueBase Database · checked Sep 16, 2026
11	GTI Fabrication	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 16, 2026	501-1,000	152 contacts →
	Partial evidence “GTI is a U.S-based, full-service contract manufacturer that brings products to life for the world's leading innovators.” Source: RevenueBase Database · checked Sep 16, 2026
12	Saginaw Control And Engineering	Strong evidence	Saginaw, MI, United StatesHQ checked Sep 16, 2026	201-500	152 contacts →
	Strong evidence “We are an electrical enclosure manufacturer founded in 1963.” Source: RevenueBase Database · checked Sep 16, 2026
13	Dynatect Manufacturing, INC	Indirect evidence	New Berlin, WI, United StatesHQ checked Sep 16, 2026	501-1,000	151 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
14	Boston Retail Solutions	Partial evidence	Vero Beach, FL, United StatesHQ checked Sep 16, 2026	201-500	150 contacts →
	Partial evidence “Boston Retail Solutions is the nation's leading service provider of modular enclosures and graphics systems.” Source: RevenueBase Database · checked Sep 16, 2026
15	Vfp, INC	Partial evidence	Roanoke, VA, United StatesHQ checked Sep 16, 2026	201-500	147 contacts →
	Partial evidence “An equipment shelter / building manufacturer.” Source: RevenueBase Database · checked Sep 16, 2026
16	Coral Industries, INC	Partial evidence	Tuscaloosa, AL, United StatesHQ checked Sep 16, 2026	201-500	134 contacts →
	Partial evidence “After its beginning in 1976, Coral Industries quickly claimed a place in the manufacturing arena of shower enclosures.” Source: RevenueBase Database · checked Sep 16, 2026
17	Penn Elcom	Partial evidence	Garden Grove, CA, United StatesHQ checked Sep 16, 2026	501-1,000	130 contacts →
	Partial evidence “Penn Elcom is the world’s leading manufacturer of quality flight case hardware, 19-inch racking solutions, and professional audio accessories.” Source: RevenueBase Database · checked Sep 16, 2026
18	Subzero Engineering	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 16, 2026	51-200	129 contacts →
	Indirect evidence “Subzero ensures a superior customer experience by applying unique product designs, quick turnaround engineering, and in-house installation teams.” Source: RevenueBase Database · checked Sep 16, 2026
19	Fidelity Manufacturing, LLC	Partial evidence	Ocala, FL, United StatesHQ checked Sep 16, 2026	51-200	114 contacts →
	Partial evidence “Fidelity Manufacturing custom builds Tube-frame enclosures, aluminum enclosures, sub-base fuel tanks, trailers, and stairs, platforms, and walkways for standby generator systems.” Source: RevenueBase Database · checked Sep 16, 2026
20	Eberhard Manufacturing Company	Partial evidence	Strongsville, OH, United StatesHQ checked Sep 16, 2026	201-500	113 contacts →
	Partial evidence “Founded in 1877, Eberhard is a leading global manufacturer of high-performance industrial access hardware, specializing in latches, locks, handles, and electronic access systems.” Source: RevenueBase Database · checked Sep 16, 2026
21	Wirecrafters	Partial evidence	Louisville, KY, United StatesHQ checked Sep 16, 2026	201-500	107 contacts →
	Partial evidence “WireCrafters® is the nation’s leading manufacturer of Wire Partitions, Wire Cages and Wire Machine Guarding Systems.” Source: RevenueBase Database · checked Sep 16, 2026
22	Robroy Industries	Indirect evidence	Verona, PA, United StatesHQ checked Sep 16, 2026	51-200	101 contacts →
	Indirect evidence “Founded in 1905 and headquartered in Verona, PA, we have been serving the electrical products industry for more than 100 years.” Source: RevenueBase Database · checked Sep 16, 2026
23	Powercon Corporation	Partial evidence	Severn, MD, United StatesHQ checked Sep 16, 2026	201-500	99 contacts →
	Partial evidence “Powercon Corporation, located in Severn, Maryland, manufactures quality Metal-Clad and Metal-Enclosed Switchgear as well as a variety of other products serving the needs of the…” Source: RevenueBase Database · checked Sep 16, 2026
24	Electri-Flex Company	Indirect evidence	Roselle, IL, United StatesHQ checked Sep 16, 2026	51-200	98 contacts →
	Indirect evidence “Liquatite® by Electri-Flex has earned an international reputation for quality, service, and product innovation.” Source: RevenueBase Database · checked Sep 16, 2026
25	MUM Industries INC	Indirect evidence	Mentor, OH, United StatesHQ checked Sep 16, 2026	51-200	97 contacts →
	Indirect evidence “Founded in 1996, MUM Industries, Inc.” Source: RevenueBase Database · checked Sep 16, 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: enclosure manufacturers. 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 enclosure manufacturers.
Partial evidence: Its own public description names part of enclosure manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enclosure manufacturers. 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 745 enclosure manufacturers based in the United States

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Enclosure manufacturers based in the United States at a glance

As of Sep 16, 2026

28.8%Verified-email coverage

20.1Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

224

11-50

292

51-200

152

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 745 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 enclosure manufacturers, 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 “enclosure manufacturers”. 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 enclosure manufacturers), 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 enclosure manufacturers, 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, 4,323 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 16, 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.

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 enclosure manufacturers, 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 enclosure manufacturers are there based in the United States?

RevenueBase identified 745 enclosure manufacturers 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?

Rittal LLC, headquartered in Schaumburg, tops this list with the largest team on record.

Which city has the most enclosure manufacturers?

Houston leads with 20 headquartered companies, followed by Dallas (10) and Chicago (8).

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 4,323 verified decision-maker contacts tracked across these 745 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 16, 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.