Company lists · Data refreshed September 2026
Top 25 Flanges and fittings for oil gas based in the United States
RevenueBase identified 738 flanges and fittings for oil gas headquartered in the United States as of September 2026 and tracks 27,500 professional contacts across them, including 10,409 with verified work emails. Houston is the largest hub.
This list covers flanges and fittings for oil gas 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 19, 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.
The 25 largest flanges and fittings for oil gas based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,005 contacts → | ||||
Indirect evidence “At our core, MRC Global is a supply-chain solutions company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,995 contacts → | ||||
Indirect evidence “Our Company Victaulic is the global leader in mechanical pipe joining solutions, delivering advanced technologies and engineering services to address complex piping challenges…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,687 contacts → | ||||
Indirect evidence “In 1986 Bray International, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,651 contacts → | ||||
Strong evidence “Caterpillar Inc.(NYSE:CAT) has completed its acquisition of the Oil & Gas Division (“Weir Oil & Gas”) of the Weir Group PLC, a Scotland-based global engineering business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 976 contacts → | ||||
Partial evidence “DNOW is a premier energy and industrial solutions provider with a legacy of over 160 years as a leading distributor of pipe, valves, fittings (PVF), pumps and fabricated equipment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 642 contacts → | ||||
Indirect evidence “About Crane ChemPharma & Energy (Crane CP & E) Crane ChemPharma and Energy (within Crane’s Process Flow Technologies segment) designs and manufactures a variety of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 612 contacts → | ||||
Indirect evidence “TMK IPSCO is now part of Tenaris.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 575 contacts → | ||||
Strong evidence “Vallourec is North America’s #1 domestic producer of premium tubular solutions primarily serving the energy markets (oil and gas, powergen): seamless Oil Country Tubular Goods…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 398 contacts → | ||||
Indirect evidence “Northwest Pipe Company is the largest manufacturer of engineered welded steel pipe water systems in North America.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 322 contacts → | ||||
Partial evidence “The Macomb Group is a leading wholesale distributor of pipe, valves, and fittings (PVF), with 30 locations in Michigan, Georgia, Indiana, Kentucky, New Jersey, North Carolina…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 320 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 268 contacts → | ||||
Strong evidence “Founded in 1975, W&O is one of the world’s largest suppliers of pipe, valves, fittings as well as actuation and engineered solutions to the maritime, and upstream oil and gas…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 257 contacts → | ||||
Indirect evidence “Edgen Murray, a Sumitomo Corporation Company, is a leading supplier of quality PVF products for the energy and infrastructure market.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 252 contacts → | ||||
Indirect evidence “MOGAS, A Flowserve Company, is the most trusted severe service technology company offering severe service valves, surface engineering / coating, modular process units, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 196 contacts → | ||||
Partial evidence “SSP takes industry-standard products and makes them better • Instrumentation Valves and Fittings and the tools to put them together • Backed by a 100% America Pledge – our…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 195 contacts → | ||||
Indirect evidence “For over 50 years, WeldFit has been a leading global manufacturer of standard and custom products for the pipeline, oilfield, refining, and petrochemical industries, and dedicated…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 191 contacts → | ||||
Indirect evidence “IPS is a Total Quality PVF Company with a strong commitment to our customers and lean manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 181 contacts → | ||||
Partial evidence “A full line of pipe, valve, and fitting supplier serving the energy industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 175 contacts → | ||||
Partial evidence “BPS Supply Group has distributed pipe, valves, fittings and supplies for over 50 years to a wide range of customers across all markets.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 168 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 145 contacts → | ||||
Indirect evidence “Since 1898, Kelly Pipe Co, LLC has been the industry leader among carbon steel pipe suppliers in the United States and abroad.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 141 contacts → | ||||
Indirect evidence “Industrial Valve (IVS) has been a leader in providing exceptional industrial valve service and solutions for over 48 years, prioritizing exceptional customer service that has…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 136 contacts → | ||||
Indirect evidence “Bonney Forge was founded in 1876 outside of Philadelphia, Pennsylvania, at the time, manufacturing a variety of hand tools.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 130 contacts → | ||||
Strong evidence “Supplier of pipe, valves, fittings, and flanges to the oil and gas, petrochemical, and refining industries with 131 employees in four states serving downstream, midstream, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 19, 2026Thanks. The Data Team will review it. | |||||
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 and fittings for oil gas. 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 and fittings for oil gas.
- Partial evidence
- Its own public description names part of flanges and fittings for oil gas, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name flanges and fittings for oil gas. 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 738 flanges and fittings for oil gas based in the United States
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Flanges and fittings for oil gas based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 738 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 and fittings for oil gas, 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 and fittings for oil gas”. 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 and fittings for oil gas), 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 and fittings for oil gas, 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, 10,409 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 19, 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 and fittings for oil gas by metro
- Flanges and fittings for oil gas in Houston164
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 and fittings for oil gas, 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 and fittings for oil gas are there based in the United States?
RevenueBase identified 738 flanges and fittings for oil gas 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?
MRC Global, headquartered in Houston, tops this list with the largest team on record.
Which city has the most flanges and fittings for oil gas?
Houston leads with 164 headquartered companies, followed by Tulsa (14) and Midland (12).
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 10,409 verified decision-maker contacts tracked across these 738 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 19, 2026.
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Flanges and fittings for oil gas by geography
- Flanges and fittings for oil gas based in Mumbai, India
- Flanges and fittings for oil gas based in Argentina
- Flanges and fittings for oil gas based in Australia
- Flanges and fittings for oil gas based in Brazil
- Flanges and fittings for oil gas based in Canada
- Flanges and fittings for oil gas based in France
- Flanges and fittings for oil gas based in Germany
- Flanges and fittings for oil gas based in India
- Flanges and fittings for oil gas based in Indonesia
- Flanges and fittings for oil gas based in Italy
- Flanges and fittings for oil gas based in Malaysia
- Flanges and fittings for oil gas based in Mexico
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.
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