Company lists · Data refreshed September 2026

Top 25 Aluminum enclosure manufacturers based in the United States

Name: Aluminum 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 30, 2026 219 companies tracked

RevenueBase identified 219 aluminum enclosure manufacturers headquartered in the United States as of September 2026 and tracks 5,796 professional contacts across them, including 1,383 with verified work emails. Houston is the largest hub.

This list covers aluminum 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 30, 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 30, 2026 86% judged on-target in blind review

219Companies

5,796Contacts tracked

1,383Verified emails

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The 25 largest aluminum enclosure manufacturers based in the United States

Ranked by team size

Top 25 of 219 aluminum enclosure manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to aluminum 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 30, 2026	501-1,000	918 contacts →
	Indirect evidence “Rittal LLC is the U.S.” Source: RevenueBase Database · checked Sep 30, 2026
2	Adalet	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 30, 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 30, 2026
3	Allied Moulded Products, INC	Partial evidence	Bryan, OH, United StatesHQ checked Sep 30, 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 30, 2026
4	Mass Precision, INC	Partial evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	201-500	179 contacts →
	Partial evidence “Since 1984, MASS has excelled in the custom contract manufacture of electronic chassis, frames, fabrications and turn-key electro-mechanical assemblies built to customer…” Source: RevenueBase Database · checked Sep 30, 2026
5	Robinson, INC	Indirect evidence	De Pere, WI, United StatesHQ checked Sep 30, 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 30, 2026
6	GTI Fabrication	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 30, 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 30, 2026
7	Saginaw Control And Engineering	Strong evidence	Saginaw, MI, United StatesHQ checked Sep 30, 2026	201-500	152 contacts →
	Strong evidence “We are an electrical enclosure manufacturer founded in 1963.” Source: RevenueBase Database · checked Sep 30, 2026
8	Penn Elcom	Partial evidence	Garden Grove, CA, United StatesHQ checked Sep 30, 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 30, 2026
9	ITW Shakeproof	Indirect evidence	Watertown, WI, United StatesHQ checked Sep 30, 2026	201-500	124 contacts →
	Indirect evidence “ITW Shakeproof combination of Industrial and Automotive businesses allows us to offer top-notch, value-added products that deliver uncompromised value and performance.” Source: RevenueBase Database · checked Sep 30, 2026
10	Parker Chomerics	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 30, 2026	501-1,000	123 contacts →
	Indirect evidence “Parker Chomerics, a Division of Parker Hannifin, is a total solutions provider of EMI Shielding, Thermal Management, Integrated Display Products, Engineered Plastics and Metal…” Source: RevenueBase Database · checked Sep 30, 2026
11	Epec Engineered Technologies	Indirect evidence	New Bedford, MA, United StatesHQ checked Sep 30, 2026	51-200	115 contacts →
	Indirect evidence “Epec Engineered Technologies is the ideal choice for an OEM seeking customized product solutions from a focused and agile partner having supported over customers across all…” Source: RevenueBase Database · checked Sep 30, 2026
12	MUM Industries INC	Indirect evidence	Mentor, OH, United StatesHQ checked Sep 30, 2026	51-200	97 contacts →
	Indirect evidence “Founded in 1996, MUM Industries, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
13	States Manufacturing Corporation	Indirect evidence	Champlin, MN, United StatesHQ checked Sep 30, 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 30, 2026
14	Riverside Mfg., LLC	Indirect evidence	Ft Wayne, IN, United StatesHQ checked Sep 30, 2026	201-500	78 contacts →
	Indirect evidence “Riverside Mfg, LLC specializes in manufacturing electrical systems and products for harsh environment vehicles and equipment.” Source: RevenueBase Database · checked Sep 30, 2026
15	IMS Companies, LLC	Strong evidence	Des Plaines, IL, United StatesHQ checked Sep 30, 2026	1,001-5,000	77 contacts →
	Strong evidence “IMS Companies, LLC is a diversified group of companies that are leading manufacturers of a wide range of products and solutions including a full line of enclosures and mounting…” Source: RevenueBase Database · checked Sep 30, 2026
16	Purcell Systems, Inc. An Enersys Company	Indirect evidence	Spokane Valley, WA, United StatesHQ checked Sep 30, 2026	5,001-10,000	74 contacts →
	Indirect evidence “Purcell Systems Inc.” Source: RevenueBase Database · checked Sep 30, 2026
17	Nema Enclosures Manufacturing	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	73 contacts →
	Partial evidence “NEMA Enclosures designs and fabricates custom UL-rated electrical and instrument enclosures built to your specifications and delivered on your schedule.” Source: RevenueBase Database · checked Sep 30, 2026
18	Linn Products, INC	Strong evidence	Charlotte, MI, United StatesHQ checked Sep 30, 2026	201-500	70 contacts →
	Strong evidence “A manufacturer of aluminum component parts and assemblies for multiple industries and applications.” Source: RevenueBase Database · checked Sep 30, 2026
19	Electronic Source Company	Partial evidence	Van Nuys, CA, United StatesHQ checked Sep 30, 2026	501-1,000	65 contacts →
	Partial evidence “Electronic Source Company (ESC) manufactures electronics for critical applications in the most demanding environments.” Source: RevenueBase Database · checked Sep 30, 2026
20	American Products	Partial evidence	Strafford, MO, United StatesHQ checked Sep 30, 2026	201-500	65 contacts →
	Partial evidence “Diversified manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026
21	Kimchuk, INC	Indirect evidence	Danbury, CT, United StatesHQ checked Sep 30, 2026	51-200	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
22	Txla Systems	Partial evidence	Huffman, TX, United StatesHQ checked Sep 30, 2026	51-200	56 contacts →
	Partial evidence “Modular Building Fabrication & Integration Electrical Equipment Manufacturing Custom Fabrication & Enclosures” Source: RevenueBase Database · checked Sep 30, 2026
23	DDB Unlimited Incorporated	Strong evidence	Pauls Valley, OK, United StatesHQ checked Sep 30, 2026	201-500	56 contacts →
	Strong evidence “DDB Unlimited is an OEM NEMA Enclosure Manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026
24	Bison Profab	Partial evidence	Magnolia, TX, United StatesHQ checked Sep 30, 2026	51-200	49 contacts →
	Partial evidence “Custom enclosures.” Source: RevenueBase Database · checked Sep 30, 2026
25	General Devices Co. INC	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 30, 2026	51-200	47 contacts →
	Indirect evidence “General Devices offers the industry's most complete selection of telescoping slides, cabinets, accessories, and electronic packaging hardware as well as being a custom precision…” Source: RevenueBase Database · checked Sep 30, 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: aluminum 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 aluminum enclosure manufacturers.
Partial evidence: Its own public description names part of aluminum enclosure manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name aluminum 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 219 aluminum enclosure manufacturers based in the United States

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Aluminum enclosure manufacturers based in the United States at a glance

As of Sep 30, 2026

23.9%Verified-email coverage

26.5Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 219 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 aluminum 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 “aluminum 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 aluminum 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 aluminum 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, 1,383 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 30, 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 aluminum 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 aluminum enclosure manufacturers are there based in the United States?

RevenueBase identified 219 aluminum 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 aluminum enclosure manufacturers?

Houston leads with 8 headquartered companies, followed by Fremont (4) and Bridgeville (3).

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 1,383 verified decision-maker contacts tracked across these 219 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 30, 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.