Company lists · Data refreshed September 2026
Top 25 Flange bolt manufacturers worldwide
RevenueBase identified 778 flange bolt manufacturers worldwide as of September 2026 and tracks 6,442 professional contacts across them, including 1,417 with verified work emails. India is the largest market and Mumbai the largest hub.
This list covers flange bolt manufacturers worldwide, 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. Country and city lists for flange bolt manufacturers follow the table.
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 flange bolt manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 375 contacts → | ||||
Strong evidence “We manufactured our first bolt with a double header machine in 1973.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 220 contacts → | ||||
Partial evidence “Birmingham Fastener is a leading manufacturer and distributor of fasteners for structural steel fabrication, metal building manufacturers, transportation, water works and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 163 contacts → | ||||
Partial evidence “Berdan Civata was founded in 1970, and has become one of the most competent and reliable manufacturer of fastening-components with constant development and research, widely known…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 122 contacts → | ||||
Strong evidence “Asia Bolts Industries LLC (ASBO) has manufactured precision fasteners for the region's most demanding industries since 1997.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 113 contacts → | ||||
Partial evidence “A Aços Vital é Fabricante de Flanges em AÇO CARBONO de 1/2" até 90", e Distribuidora de Tubos, Válvulas, Conexões, Chapas e outros materiais em Aço, Carbono e Aço Inox.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 113 contacts → | ||||
Indirect evidence “Mitaş Energy and Metal Construction Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 112 contacts → | ||||
Indirect evidence “All-Pro Fasteners, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 85 contacts → | ||||
Partial evidence “OM Tubes & Fittings Industries specializes in high-quality fittings, flanges, fasteners, and precision components, serving industries where reliability is critical.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 83 contacts → | ||||
Indirect evidence “Alloy & Stainless Fasteners, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 83 contacts → | ||||
Indirect evidence “We are a global leader in the production and supply of hot & cold formed high strength fasteners Strategic operations in the UK, Europe, China, U.S.A, India and Singapore allow us…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 78 contacts → | ||||
Partial evidence “LoneStar Fasteners Hydrobolt Ltd sales@hydroboltgroup.com Manufacturer, stockists and distributors of: • Fully traceable, high integrity special fasteners and turned parts •…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 67 contacts → | ||||
Partial evidence “INDURA is a total supplier and special order supplier of flanges and fittings in various steel qualities.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 63 contacts → | ||||
Indirect evidence “AmeriBolt was created in 2005 to provide better service to fastener distributors in the Southeast and Gulf Coast states.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 58 contacts → | ||||
Indirect evidence “Desde nuestra fundación en el año 2003, EuroPer ha tenido un compromiso constante de satisfacer las necesidades de nuestros clientes proporcionando un servicio de calidad.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 53 contacts → | ||||
Partial evidence “Technical Metal is one of the leading manufacturers of industrial fasteners.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 50 contacts → | ||||
Strong evidence “We design, develop and manufacture your fasteners & binding elements, special bolts, through forging, machining (turning, milling, grinding) and thread rolling.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 49 contacts → | ||||
Partial evidence “For over 110 years, Portland Bolt has provided top-quality industrial and nonstandard fasteners, delivered on our customers’ schedules.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 49 contacts → | ||||
Indirect evidence “Koyas Fasteners Pvt.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 43 contacts → | ||||
Indirect evidence “Kaleliler Fasteners which is located in Ankara Turkey is manufacturing fastener products with high quality.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 41 contacts → | ||||
Partial evidence “Established in 1935, Hobson Engineering is a family owned and operated business that has grown to become Australia’s leading wholesale supplier of quality fasteners, bolts, nuts…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 41 contacts → | ||||
Indirect evidence “Our company always updated with the latest technology, has been attentive to select very carefully the Sales and technical staff, to obtain a complete organization and ready to…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 38 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 37 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 36 contacts → | ||||
Partial evidence “At BNML we specialise in the manufacture and supply of high integrity special fasteners and petrochemical grade bolting.” Source: RevenueBase Database · checked Sep 30, 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: flange bolt 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 flange bolt manufacturers.
- Partial evidence
- Its own public description names part of flange bolt manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name flange bolt 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 778 flange bolt manufacturers worldwide
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Flange bolt manufacturers worldwide at a glance
As of Sep 30, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 flange bolt 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.
- Coverage
- Every country. Country and city lists for flange bolt manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “flange bolt 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 flange bolt 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 flange bolt manufacturers, and records with no verified work email.
- 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, 1,417 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.
Flange bolt manufacturers by location
2 lists · largest firstEvery Flange bolt manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 flange bolt 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 flange bolt manufacturers are there worldwide?
RevenueBase identified 778 flange bolt manufacturers worldwide 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?
Norm Fasteners, headquartered in Cigli, tops this list with the largest team on record.
Which country has the most flange bolt manufacturers?
India leads with 260 companies, followed by the United States (90). Every flange bolt manufacturers list by country and city is linked on this page.
Which city has the most flange bolt manufacturers?
Mumbai leads with 64 headquartered companies, followed by Ludhiana (20) and Ahmedabad (16).
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 1,417 verified decision-maker contacts tracked across these 778 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.