Company lists · Data refreshed September 2026

Top 25 Custom fabrication service providers based in the United States

Name: Custom fabrication service providers 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 6,241 companies tracked

RevenueBase identified 6,241 custom fabrication service providers headquartered in the United States as of September 2026 and tracks 60,589 professional contacts across them, including 16,856 with verified work emails. Houston is the largest hub.

This list covers custom fabrication service providers 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

6,241Companies

60,589Contacts tracked

16,856Verified emails

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The 25 largest custom fabrication service providers based in the United States

Ranked by team size

Top 25 of 6,241 custom fabrication service providers 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 custom fabrication service providers: 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	Janicki	Indirect evidence	Sedro-woolley, WA, United StatesHQ checked Sep 16, 2026	1,001-5,000	914 contacts →
	Indirect evidence “Janicki is a privately-owned engineering and manufacturing company with locations in Washington and Utah.” Source: RevenueBase Database · checked Sep 16, 2026
2	MEC Mayville Engineering Company, INC	Partial evidence	Mayville, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	906 contacts →
	Partial evidence “We are more than just a manufacturing and fabricating company.” Source: RevenueBase Database · checked Sep 16, 2026
3	Mack Molding Company	Indirect evidence	Arlington, VT, United StatesHQ checked Sep 16, 2026	1,001-5,000	453 contacts →
	Indirect evidence “Mack Molding Co, headquartered in Arlington, VT, provides design through FDA-approved manufacturing services to the medical, commercial, computer & business equipment, energy and…” Source: RevenueBase Database · checked Sep 16, 2026
4	Molded Fiber Glass MFG Companies	Partial evidence	Ashtabula, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	437 contacts →
	Partial evidence “MFG's composites expertise is a result of 70 years of service to customers in many industries.” Source: RevenueBase Database · checked Sep 16, 2026
5	The Gund Company	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 16, 2026	501-1,000	405 contacts →
	Indirect evidence “The Gund Company is a vertically integrated manufacturer and fabricator of engineered material solutions.” Source: RevenueBase Database · checked Sep 16, 2026
6	O'neal Manufacturing Services	Indirect evidence	Vestavia Hills, AL, United StatesHQ checked Sep 16, 2026	1,001-5,000	354 contacts →
	Indirect evidence “O’Neal Manufacturing Services (OMS) is a supplier of fabricated metal components and welded assemblies.” Source: RevenueBase Database · checked Sep 16, 2026
7	PEXCO	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 16, 2026	501-1,000	332 contacts →
	Indirect evidence “Pexco is a leading manufacturer of high-performance plastic solutions engineered for manufacturers and end-users across North America.” Source: RevenueBase Database · checked Sep 16, 2026
8	Modineer Group	Indirect evidence	Niles, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	296 contacts →
	Indirect evidence “Modineer is your partner for quality metal components.” Source: RevenueBase Database · checked Sep 16, 2026
9	Vaupell	Indirect evidence	Everett, WA, United StatesHQ checked Sep 16, 2026	501-1,000	276 contacts →
	Indirect evidence “For 75+ years Vaupell has been providing global precision components and assemblies to top-tier OEMs, leading growth companies, and start-ups for the aerospace, medical, and the…” Source: RevenueBase Database · checked Sep 16, 2026
10	United Alloy	Indirect evidence	Janesville, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	267 contacts →
	Indirect evidence “At United Alloy, quality and craftsmanship aren’t just goals, they’re guaranteed.” Source: RevenueBase Database · checked Sep 16, 2026
11	Poynter Sheet Metal	Partial evidence	Greenwood, IN, United StatesHQ checked Sep 16, 2026	201-500	243 contacts →
	Partial evidence “Poynter Sheet Metal is Indiana's largest, and most respected, full service sheet metal and custom metal crafter.” Source: RevenueBase Database · checked Sep 16, 2026
12	Major Tool & Machine	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 16, 2026	201-500	233 contacts →
	Partial evidence “Established in 1946, Major Tool & Machine started business as a custom job shop specializing in the production of tooling and aircraft ground support equipment and has since…” Source: RevenueBase Database · checked Sep 16, 2026
13	NIC Global Manufacturing Solutions	Partial evidence	Woodinville, TN, United StatesHQ checked Sep 16, 2026	501-1,000	229 contacts →
	Partial evidence “NIC Global is a single-source manufacturer providing turn-key mechanical and electromechanical assembly, expert sheet metal fabrication, and global sourcing of metal and plastic…” Source: RevenueBase Database · checked Sep 16, 2026
14	Morton Industries	Indirect evidence	Morton, IL, United StatesHQ checked Sep 16, 2026	501-1,000	227 contacts →
	Indirect evidence “Morton Industries is a leading manufacturer of Fabricated Tube and Sheet Metal Assemblies.” Source: RevenueBase Database · checked Sep 16, 2026
15	Fathom Digital Manufacturing	Indirect evidence	Hartland, WI, United StatesHQ checked Sep 16, 2026	501-1,000	188 contacts →
	Indirect evidence “Contract Manufacturing, Designed Around You Fathom Manufacturing helps companies simplify part sourcing with 25+ advanced manufacturing technologies and support services, all…” Source: RevenueBase Database · checked Sep 16, 2026
16	Mecha INC	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 16, 2026	n/a	157 contacts →
	Indirect evidence “Mecha specializes in the design, analysis, and manufacturing of metal products for the embedded computer industry.” Source: RevenueBase Database · checked Sep 16, 2026
17	General Stamping & Metalworks	Indirect evidence	South Bend, IN, United StatesHQ checked Sep 16, 2026	201-500	154 contacts →
	Indirect evidence “General Stamping & Metalworks (GSM) is a leading provider of manufacturing solutions to progressive OEMs worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
18	FMT	Indirect evidence	Findlay, OH, United StatesHQ checked Sep 16, 2026	51-200	153 contacts →
	Indirect evidence “FMT is your strategic partner in high-quality plastic parts manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026
19	Welding Works	Partial evidence	Madison, CT, United StatesHQ checked Sep 16, 2026	n/a	152 contacts →
	Partial evidence “Since it was founded in 1979, Welding Works has become known for its ability to provide quick, reliable turnaround on all types of industrial metal fabrications.” Source: RevenueBase Database · checked Sep 16, 2026
20	Standard Iron	Indirect evidence	Monticello, MN, United StatesHQ checked Sep 16, 2026	501-1,000	150 contacts →
	Indirect evidence “Standard Iron houses all the metalworking equipment needed to fabricate everything from simple parts to complex machined weldments.” Source: RevenueBase Database · checked Sep 16, 2026
21	Prince Manufacturing, INC	Strong evidence	West Columbia, SC, United StatesHQ checked Sep 16, 2026	1,001-5,000	146 contacts →
	Strong evidence “Prince Manufacturing is a contract manufacturing company that focuses on eliminating waste in the customer's supply chain by providing fabrication, forming, coating and finishing…” Source: RevenueBase Database · checked Sep 16, 2026
22	Quality Industries	Partial evidence	La Vergne, TN, United StatesHQ checked Sep 16, 2026	501-1,000	145 contacts →
	Partial evidence “Precision Metalworks, ENGINEERING, FABRICATION, COATING, ASSEMBLY & SERVICE At Quality Industries, our Nashville-area and Dallas-area facilities house more than square feet of…” Source: RevenueBase Database · checked Sep 16, 2026
23	Lake AIR Products	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 16, 2026	51-200	144 contacts →
	Indirect evidence “Your Advanced Manufacturing Partner.” Source: RevenueBase Database · checked Sep 16, 2026
24	NEW Standard Corporation	Partial evidence	York, PA, United StatesHQ checked Sep 16, 2026	201-500	140 contacts →
	Partial evidence “New Standard Corporation is one of the largest metal stamping, fabrication, welding, and assembly companies in North America.” Source: RevenueBase Database · checked Sep 16, 2026
25	Miller Fabrication Solutions	Partial evidence	Brookville, PA, United StatesHQ checked Sep 16, 2026	201-500	134 contacts →
	Partial evidence “Miller Fabrication Solutions is the strategic metals manufacturing partner for innovative Original Equipment Manufacturers (OEMs).” 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: custom fabrication service providers. 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 custom fabrication service providers.
Partial evidence: Its own public description names part of custom fabrication service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom fabrication service providers. 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 6,241 custom fabrication service providers based in the United States

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Custom fabrication service providers based in the United States at a glance

As of Sep 16, 2026

27.8%Verified-email coverage

9.7Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

2,469

11-50

2,511

51-200

1,066

201-500

118

501-1,000

1,001-5,000

5,001-10,000

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 6,241 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 custom fabrication service providers, 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 “custom fabrication service providers”. 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 custom fabrication service providers), 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 custom fabrication service providers, 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, 16,856 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.

Custom fabrication service providers by metro

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 custom fabrication service providers, 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 custom fabrication service providers are there based in the United States?

RevenueBase identified 6,241 custom fabrication service providers 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?

Janicki, headquartered in Sedro-Woolley, tops this list with the largest team on record.

Which city has the most custom fabrication service providers?

Houston leads with 97 headquartered companies, followed by Phoenix (45) and Los Angeles (37).

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 16,856 verified decision-maker contacts tracked across these 6,241 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.