Company lists · Data refreshed September 2026

Top 25 Flanges manufacturers based in the United States

Name: Flanges 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 182 companies tracked

RevenueBase identified 182 flanges manufacturers headquartered in the United States as of September 2026 and tracks 2,944 professional contacts across them, including 1,030 with verified work emails. Houston is the largest hub.

This list covers flanges 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

182Companies

2,944Contacts tracked

1,030Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest flanges manufacturers based in the United States

Ranked by team size

Top 25 of 182 flanges 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 flanges 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	Texas Pipe & Supply	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	501-1,000	320 contacts →
	Partial evidence “Texas Pipe and Supply is a leading distributor of Carbon Pipe, Carbon Fittings and Flanges, Stainless Pipe and Stainless Fittings and Flanges.” Source: RevenueBase Database · checked Sep 30, 2026
2	Hose Master LLC	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	201-500	226 contacts →
	Partial evidence “With headquarters in Cleveland OH and regional facilities in Houston TX, Atlanta GA, and Reno NV, Hose Master is North America’s largest manufacturer of flexible metal hose and…” Source: RevenueBase Database · checked Sep 30, 2026
3	Elkhart Products Corporation	Indirect evidence	Elkhart, IN, United StatesHQ checked Sep 30, 2026	501-1,000	155 contacts →
	Indirect evidence “A Proud History, An Exciting Future.” Source: RevenueBase Database · checked Sep 30, 2026
4	Merit Brass Company	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	201-500	126 contacts →
	Indirect evidence “Merit Brass: Connecting Your Success with Seamless Piping Solutions What does it take to keep industries flowing smoothly?” Source: RevenueBase Database · checked Sep 30, 2026
5	Custom Pipe & Fabrication INC	Indirect evidence	Stanton, CA, United StatesHQ checked Sep 30, 2026	201-500	92 contacts →
	Indirect evidence “For over 50 years, we have been in the business of transformation, turning raw materials into connected ecosystems.” Source: RevenueBase Database · checked Sep 30, 2026
6	CAB Worldwide	Strong evidence	Buford, GA, United StatesHQ checked Sep 30, 2026	51-200	80 contacts →
	Strong evidence “Manufacturer & distributor of precision machined industrial casting, forgings, fabricated assemblies, gear cut components and steel pipe flanges.” Source: RevenueBase Database · checked Sep 30, 2026
7	Service Metal Products	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 30, 2026	51-200	60 contacts →
	Partial evidence “Service Metal is a Master Distributor of industrial pipe fittings, flanges, and valves.” Source: RevenueBase Database · checked Sep 30, 2026
8	Western Forge & Flange	Partial evidence	Cleveland, United StatesHQ checked Sep 30, 2026	51-200	58 contacts →
	Partial evidence “Western Forge & Flange is a privately held company with 80+ employees.” Source: RevenueBase Database · checked Sep 30, 2026
9	API International, INC	Strong evidence	Greenfield, IN, United StatesHQ checked Sep 30, 2026	51-200	57 contacts →
	Strong evidence “API International, Inc, founded in 1968, manufactures flanges, expansion joints, valve accessories and other pipe fittings for Agriculture, Exhaust, HVAC and Water Works.” Source: RevenueBase Database · checked Sep 30, 2026
10	U.S. Metals, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	46 contacts →
	Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 30, 2026
11	Energy Metals INC	Indirect evidence	Pearland, TX, United StatesHQ checked Sep 30, 2026	51-200	41 contacts →
	Indirect evidence “Energy Metals stocks a full range of: Alloy 20, Duplex 2205, Super Duplex 2507, 304L, 304/304H, 316L, 316/316H, 317/317L, 310S/310H, 321/321H, 347/347H, 410S, 904-L, 254 SMO®…” Source: RevenueBase Database · checked Sep 30, 2026
12	Tribal Manufacturing, INC	Partial evidence	Marshall, MI, United StatesHQ checked Sep 30, 2026	201-500	40 contacts →
	Partial evidence “Tribal manufactures and distributes tariff-free brass fittings, plumbing fittings, gas fittings and other metal parts and fittings for OEM customers, wholesale plumbing customers…” Source: RevenueBase Database · checked Sep 30, 2026
13	Allan Aircraft Supply Co. LLC	Partial evidence	North Hollywood, CA, United StatesHQ checked Sep 30, 2026	51-200	39 contacts →
	Partial evidence “Manufacturer of AN, AS, MS, NAS, AA, AAB, and specialty fittings in Stainless Steel, Aluminum, Titanium and other exotic materials for the Aerospace Industry since 1952.” Source: RevenueBase Database · checked Sep 30, 2026
14	Fulton Bellows, LLC	Partial evidence	Knoxville, TN, United StatesHQ checked Sep 30, 2026	51-200	37 contacts →
	Partial evidence “Fulton Bellows is the oldest manufacturer of precision seamless metallic bellows.” Source: RevenueBase Database · checked Sep 30, 2026
15	GMI Group	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	32 contacts →
	Partial evidence “For almost fifty years Warren Alloy has been a master distributor of stainless steel and high alloy pipe, tubing, fittings, flanges and its exclusive line of Warren Valves.” Source: RevenueBase Database · checked Sep 30, 2026
16	Tmco, The Measurement Company	Partial evidence	Wewoka, OK, United StatesHQ checked Sep 30, 2026	51-200	31 contacts →
	Partial evidence “TMCO is the proud manufacturer of the Sure Shot Dual and Single chamber Orifice Fittings.” Source: RevenueBase Database · checked Sep 30, 2026
17	Anderson Brass Company	Partial evidence	Hartsville, SC, United StatesHQ checked Sep 30, 2026	51-200	30 contacts →
	Partial evidence “Anderson Brass is a family-owned brass valve manufacturer located in beautiful Hartsville, South Carolina.” Source: RevenueBase Database · checked Sep 30, 2026
18	Federal Steel Supply	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	11-50	28 contacts →
	Indirect evidence “Federal Steel Supply, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
19	Energy Pipe & Supply	Indirect evidence	Metairie, LA, United StatesHQ checked Sep 30, 2026	11-50	27 contacts →
	Indirect evidence “Focusing on quality products and quality people, Energy Pipe & Supply, has grown into a world class distributor of industrial, mechanical, & marine piping products, which includes…” Source: RevenueBase Database · checked Sep 30, 2026
20	Delta Machine & Ironworks	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 30, 2026	51-200	27 contacts →
	Indirect evidence “Founded by John D.” Source: RevenueBase Database · checked Sep 30, 2026
21	Kerkau Manufacturing	Strong evidence	Bay City, MI, United StatesHQ checked Sep 30, 2026	11-50	27 contacts →
	Strong evidence “Kerkau Manufacturing is an industry leading, high quality, pipe flange and precision machined products manufacturer, specializing in flanges.” Source: RevenueBase Database · checked Sep 30, 2026
22	Precision Flange And Machine, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	25 contacts →
	Partial evidence “Precision Flange & Machine, founded in 1989 in Houston, delivers ISO 9001-certified flanges, fittings and custom-machined components with a focus on quality, reliability and…” Source: RevenueBase Database · checked Sep 30, 2026
23	WFI International	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	23 contacts →
	Partial evidence “WFI International engineers and manufacturers a variety of piping products, branch connections, specialty fittings, and pressure vessel components.” Source: RevenueBase Database · checked Sep 30, 2026
24	Epic Distribution	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	23 contacts →
	Partial evidence “Master Distributor carrying carbon, chrome, low temp and stainless pipe, fittings, and flanges.” Source: RevenueBase Database · checked Sep 30, 2026
25	LEE Supply Company, LLC	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 30, 2026	51-200	22 contacts →
	Indirect evidence “Lee Supply was founded in 1973 by Sid and Maxine Lee and their two sons, Dennis and Doug.” 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: flanges 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 flanges manufacturers.
Partial evidence: Its own public description names part of flanges manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name flanges 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 182 flanges manufacturers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,030 reachable decision-makers.

Free signup · no credit card

View the full list →

Flanges manufacturers based in the United States at a glance

As of Sep 30, 2026

35.0%Verified-email coverage

16.2Average contacts per company

11-50Median size (employees)

20.9%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

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 182 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 flanges 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 “flanges 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 flanges 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 flanges 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, 1,030 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.

Flanges manufacturers by metro

Flanges manufacturers in Houston38

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 flanges 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 flanges manufacturers are there based in the United States?

RevenueBase identified 182 flanges 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?

Texas Pipe & Supply, headquartered in Houston, tops this list with the largest team on record.

Which city has the most flanges manufacturers?

Houston leads with 38 headquartered companies, followed by Tulsa (4) and Chicago (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 1,030 verified decision-maker contacts tracked across these 182 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.

Ready to reach these companies? Verified emails and direct dials for all 182 flanges manufacturers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Flanges manufacturers by geography

Browse the directory

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.