Company lists · Data refreshed September 2026

Top 25 Alloy steel casting companies based in the United States

Name: Alloy steel casting companies 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 365 companies tracked

RevenueBase identified 365 alloy steel casting companies headquartered in the United States as of September 2026 and tracks 10,900 professional contacts across them, including 2,546 with verified work emails. Milwaukee is the largest hub.

This list covers alloy steel casting companies 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

365Companies

10,900Contacts tracked

2,546Verified emails

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The 25 largest alloy steel casting companies based in the United States

Ranked by team size

Top 25 of 365 alloy steel casting companies 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 alloy steel casting companies: 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	PCC Structurals, INC	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	10001+	1,318 contacts →
	Strong evidence “PCC Structurals specializes in nickel-based superalloy, titanium, stainless steel, and aluminum investment castings for aerospace, land-based turbine, medical, military armament…” Source: RevenueBase Database · checked Sep 16, 2026
2	Grede Holdings LLC	Partial evidence	Southfield, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	514 contacts →
	Partial evidence “As a premier Tier One supplier, Grede has provided more than 100 years of reliable and innovative iron castings that have built and transformed the world as we know it for three…” Source: RevenueBase Database · checked Sep 16, 2026
3	Hitchiner Manufacturing	Indirect evidence	Milford, NH, United StatesHQ checked Sep 16, 2026	1,001-5,000	505 contacts →
	Indirect evidence “Founded in 1946 and headquartered in Milford, New Hampshire (USA), Hitchiner Manufacturing is the premier supplier of complete-to-print, high-volume, complex thin-wall investment…” Source: RevenueBase Database · checked Sep 16, 2026
4	Signicast Investment Castings	Partial evidence	Hartford, WI, United StatesHQ checked Sep 16, 2026	501-1,000	325 contacts →
	Partial evidence “Signicast, a Form Technologies' company, is a world-class provider of commercial investment castings.” Source: RevenueBase Database · checked Sep 16, 2026
5	Spartan Light Metal Products	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 16, 2026	501-1,000	321 contacts →
	Partial evidence “Spartan Light Metal Products is an industry leader in both aluminum and magnesium custom die castings.” Source: RevenueBase Database · checked Sep 16, 2026
6	Donsco INC	Indirect evidence	Wrightsville, PA, United StatesHQ checked Sep 16, 2026	201-500	154 contacts →
	Indirect evidence “Single source supplier of cast iron parts for industry.” Source: RevenueBase Database · checked Sep 16, 2026
7	RCM Industries, INC	Indirect evidence	Franklin Park, IL, United StatesHQ checked Sep 16, 2026	501-1,000	129 contacts →
	Indirect evidence “As a Tier 1, Tier 2 #OEMEngineer or #PurchasingManager, you need meticulous service and precision #EngineeredDieCastings for your products.” Source: RevenueBase Database · checked Sep 16, 2026
8	Harrison Steel Castings CO	Strong evidence	Attica, IN, United StatesHQ checked Sep 16, 2026	501-1,000	114 contacts →
	Strong evidence “Harrison Steel is your trusted partner in the world of steel casting.” Source: RevenueBase Database · checked Sep 16, 2026
9	Wisconsin Aluminum Foundry	Strong evidence	Manitowoc, WI, United StatesHQ checked Sep 16, 2026	501-1,000	112 contacts →
	Strong evidence “Established in 1909, Wisconsin Aluminum Foundry has consistently provided the finest quality aluminum and copper based alloy castings for a wide variety of industries.” Source: RevenueBase Database · checked Sep 16, 2026
10	Fort Recovery Industries INC	Indirect evidence	Fort Recovery, United StatesHQ checked Sep 16, 2026	201-500	107 contacts →
	Indirect evidence “Fort Recovery Industries, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
11	Stainless Foundry & Engineering, LLC	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 16, 2026	51-200	105 contacts →
	Indirect evidence “Wisconsin’s Premier Sand & Investment Foundry with Rough & Finish Machining, Onsite NDT, ISO, PED, NIAC and ASME Certified” Source: RevenueBase Database · checked Sep 16, 2026
12	Wirco INC	Strong evidence	Avilla, IN, United StatesHQ checked Sep 16, 2026	51-200	91 contacts →
	Strong evidence “Wirco is an alloy fabrication and casting company.” Source: RevenueBase Database · checked Sep 16, 2026
13	Winsert	Partial evidence	Marinette, WI, United StatesHQ checked Sep 16, 2026	201-500	89 contacts →
	Partial evidence “Winsert is an advanced manufacturer that excels in high-grade alloys.” Source: RevenueBase Database · checked Sep 16, 2026
14	Charter Aarrowcast	Partial evidence	Shawano, WI, United StatesHQ checked Sep 16, 2026	201-500	83 contacts →
	Partial evidence “A leading provider of innovative cast metal solutions, Charter Aarrowcast produces ductile and gray iron castings for customers in various industries.” Source: RevenueBase Database · checked Sep 16, 2026
15	Busche Performance Group	Partial evidence	Southfield, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	83 contacts →
	Partial evidence “Busche Performance Group (BPG) is one of the largest vertically integrated casting and machining suppliers of high-quality chassis components in North America.” Source: RevenueBase Database · checked Sep 16, 2026
16	Seacast, INC	Partial evidence	Marysville, WA, United StatesHQ checked Sep 16, 2026	201-500	77 contacts →
	Partial evidence “SeaCast is a full-service, AS9100 certified manufacturer specializing in investment castings for aerospace, military, and industrial sectors.” Source: RevenueBase Database · checked Sep 16, 2026
17	ECK Industries, INC	Partial evidence	Manitowoc, WI, United StatesHQ checked Sep 16, 2026	201-500	74 contacts →
	Partial evidence “Eck Industries is a fourth-generation, family-owned aluminum foundry delivering premium castings to aerospace, defense, marine, and advanced industrial markets.” Source: RevenueBase Database · checked Sep 16, 2026
18	Huron Casting INC	Strong evidence	Pigeon, MI, United StatesHQ checked Sep 16, 2026	201-500	69 contacts →
	Strong evidence “Huron Casting Inc is a steel foundry located in Pigeon, MI, United States” Source: RevenueBase Database · checked Sep 16, 2026
19	Miller Castings	Partial evidence	Whittier, CA, United StatesHQ checked Sep 16, 2026	201-500	67 contacts →
	Partial evidence “Miller Castings has been manufacturing “lost wax” investment castings for aerospace, military and commercial customers since 1972.” Source: RevenueBase Database · checked Sep 16, 2026
20	Kovatch Castings INC	Partial evidence	Uniontown, OH, United StatesHQ checked Sep 16, 2026	51-200	64 contacts →
	Partial evidence “Manufacturing of precision Investment Castings for Aerospace Military and Commercial applications.” Source: RevenueBase Database · checked Sep 16, 2026
21	O'fallon Casting	Partial evidence	O'fallon, MO, United StatesHQ checked Sep 16, 2026	201-500	64 contacts →
	Partial evidence “O’Fallon Casting is a world- wide industry leader in the manufacture of Aluminum and Aluminum/Silicon Carbide Metal Matrix Composite (MMC) Investment Castings.” Source: RevenueBase Database · checked Sep 16, 2026
22	Alcon Industries, INC	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 16, 2026	51-200	63 contacts →
	Strong evidence “Alcon Industries is America’s leading producer of heat- and corrosion-resistant alloy castings for the past 40 years.” Source: RevenueBase Database · checked Sep 16, 2026
23	Spuncast, Incorporated	Indirect evidence	Watertown, WI, United StatesHQ checked Sep 16, 2026	51-200	60 contacts →
	Indirect evidence “Spuncast Inc.” Source: RevenueBase Database · checked Sep 16, 2026
24	Alcast Company LLC	Indirect evidence	Peoria, IL, United StatesHQ checked Sep 16, 2026	201-500	59 contacts →
	Indirect evidence “Alcast Company of Peoria, Illinois, USA is a ISO / TS 16949:2009 certified low pressure, permanent mold aluminum foundry and CNC machine shop, which uses the magic of…” Source: RevenueBase Database · checked Sep 16, 2026
25	Leclaire Manufacturing CO	Partial evidence	Bettendorf, IA, United StatesHQ checked Sep 16, 2026	51-200	57 contacts →
	Partial evidence “LeClaire Manufacturing serves as a single source for all of your aluminum casting needs.” 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: alloy steel casting companies. 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 alloy steel casting companies.
Partial evidence: Its own public description names part of alloy steel casting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name alloy steel casting companies. 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 365 alloy steel casting companies based in the United States

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Alloy steel casting companies based in the United States at a glance

As of Sep 16, 2026

23.4%Verified-email coverage

29.9Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Milwaukee

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

107

51-200

126

201-500

501-1,000

1,001-5,000

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 365 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 alloy steel casting companies, 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 “alloy steel casting companies”. 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 alloy steel casting companies), 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 alloy steel casting companies, 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, 2,546 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 alloy steel casting companies, 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 alloy steel casting companies are there based in the United States?

RevenueBase identified 365 alloy steel casting companies 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?

PCC Structurals, INC, headquartered in Portland, tops this list with the largest team on record.

Which city has the most alloy steel casting companies?

Milwaukee leads with 8 headquartered companies, followed by Muskegon (6) and South Gate (5).

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 2,546 verified decision-maker contacts tracked across these 365 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.