Company lists · Data refreshed September 2026
Top 25 Subsea fastener companies worldwide
RevenueBase identified 449 subsea fastener companies worldwide as of September 2026 and tracks 6,990 professional contacts across them, including 1,728 with verified work emails. The United Kingdom is the largest market and Houston the largest hub.
This list covers subsea fastener companies 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 22, 2026. Country and city lists for subsea fastener companies 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 subsea fastener companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 342 contacts → | ||||
Partial evidence “Unbrako ( Deepak Fasteners Limited ) is the largest Manufacturer of fasteners from India.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 166 contacts → | ||||
Partial evidence “Deepsea Technologies, Inc.(DTI) Engineers and Manufactures a wide range of products and equipment used in subsea oil & gas field development projects.” Source: RevenueBase Database · checked Sep 22, 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 114 contacts → | ||||
Indirect evidence “SBN Industries Sdn Bhd - A Family of Quality.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 112 contacts → | ||||
Partial evidence “All-Pro Fasteners, Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 97 contacts → | ||||
Indirect evidence “Fixadores e Caldeirados Industriais de Alta Performance.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 95 contacts → | ||||
Partial evidence “STS is the most experienced and largest Subsea Engineering and Services Company in Chile and one of the leaders in Latin-America.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 94 contacts → | ||||
Indirect evidence “ITH Bolting Technology is the worldwide leading system supplier for industrial bolting with four key competencies: High-quality bolting solutions, comprehensive engineering…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 93 contacts → | ||||
Partial evidence “LoneStar Fasteners Europe is one of the world's leading manufacturers of High Integrity Fasteners, Petrochemical Bolting and Machined Parts to the critical industry sectors.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 88 contacts → | ||||
Partial evidence “Pioneering Artificial Lift & Subsea Connector Technology RMSpumptools is established as a world leader in Artificial Lift Completion Technology and Subsea Connectors, providing…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 85 contacts → | ||||
Partial evidence “SIMEROS is a Brazilian engineering company specialized in developing high-performance solutions for the subsea oil and gas sector, with a focus on SURF (Subsea Umbilicals, Risers…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 83 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 79 contacts → | ||||
Partial evidence “Randack Fasteners India is a mechanical or industrial engineering company based out of India.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 71 contacts → | ||||
Partial evidence “With over 40 years of experience, at Hydro Group we specialise in the manufacture of bespoke subsea cable and connector assembly engineering for some of the most demanding…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 71 contacts → | ||||
Partial evidence “Welcome to Dokka Fasteners Dokka Fasteners is a special manufacturer of fasteners used in more demanding tasks.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 66 contacts → | ||||
Partial evidence “Manufacturer of Special Fasteners and Studbolts for Energy (Oil, Gas, Nuclear, Turbines Industries) Chemical Industries Space Application Buildings.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 66 contacts → | ||||
Indirect evidence “We perform so you can perform.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 57 contacts → | ||||
Partial evidence “SFC (Europe) Ltd - Manufacturers of High Integrity, Safety Critical Fasteners.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 56 contacts → | ||||
Partial evidence “We design and supply products for the offshore and subsea industries; specialising in subsea and riser applications enduring fatigue, high strength steel and moving parts.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 54 contacts → | ||||
Partial evidence “Barnhart Bolt & Special Fasteners, Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 54 contacts → | ||||
Partial evidence “GMC Limited is an engineering, products, and services company specialising in the connection of tubular structures for offshore and subsea applications.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 53 contacts → | ||||
Partial evidence “Technical Metal is one of the leading manufacturers of industrial fasteners.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 53 contacts → | ||||
Partial evidence “A Trusted Partner in Subsea Technology.” Source: RevenueBase Database · checked Sep 22, 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: subsea fastener 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 subsea fastener companies.
- Partial evidence
- Its own public description names part of subsea fastener companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name subsea fastener 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 449 subsea fastener companies worldwide
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Subsea fastener companies worldwide at a glance
As of Sep 22, 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 subsea fastener 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.
- Coverage
- Every country. Country and city lists for subsea fastener companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “subsea fastener 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 subsea fastener 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 subsea fastener companies, 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, 1,728 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 22, 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.
Subsea fastener companies by location
3 lists · largest firstEvery Subsea fastener companies 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 subsea fastener 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 subsea fastener companies are there worldwide?
RevenueBase identified 449 subsea fastener companies 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?
Deepak Fasteners LTD - Unbrako, headquartered in Sehore, tops this list with the largest team on record.
Which country has the most subsea fastener companies?
The United Kingdom leads with 81 companies, followed by the United States (60) and India (50). Every subsea fastener companies list by country and city is linked on this page.
Which city has the most subsea fastener companies?
Houston leads with 16 headquartered companies, followed by Aberdeen (9) and Mumbai (8).
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 1,728 verified decision-maker contacts tracked across these 449 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 22, 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.