Company lists · Data refreshed September 2026
Top 25 Subsea fastener companies based in the United Kingdom
RevenueBase identified 81 subsea fastener companies headquartered in the United Kingdom as of September 2026 and tracks 1,195 professional contacts across them, including 534 with verified work emails. Aberdeen is the largest hub.
This list covers subsea fastener companies headquartered in the United Kingdom, 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.
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 based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | 41 contacts → | ||||
Partial evidence “With over 30 years' experience; First Subsea are a trusted provider of subsea products for the offshore wind, oil and gas industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 35 contacts → | ||||
Indirect evidence “CRE designs and manufactures a range of all-metal shell connectors, fibre optic products, strain terminations, penetrators and junction boxes for extremely heavy duty use and are…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 34 contacts → | ||||
Indirect evidence “Established for over 30 years, Rollstud Limited are a privately owned manufacturer of quality assured Bolting for the Oil, Gas and Petrochemical industries, with manufacturing…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 33 contacts → | ||||
Partial evidence “BST are a Manufacturer High Integrity and Safety Critical Fasteners and Machined Components to international standards, customer specifications and bespoke drawing requirements.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 27 contacts → | ||||
Partial evidence “London Marine Consultants (LMC) specialises in the engineering design and provision of mooring and subsea systems for FPSOs, FSRUs, FLNGs and FSOs, Floating Wind, Tidal and Wave…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 23 contacts → | ||||
Partial evidence “J+S Subsea provides proactive, responsive, and cost-effective solutions for design, engineering, operational support and maintenance of subsea equipment, primarily related to the…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 23 contacts → | ||||
Indirect evidence “Operating from a sq ft custom engineering facility in North Tyneside, UK, ABS Precision is an established specialist in hydraulic bolting solutions and high-tolerance machining.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 22 contacts → | ||||
Partial evidence “GLASGOW OFFICE (sales, customer services, technical support and logistics): Evolution Fasteners (UK) Ltd Clyde Gateway Trade Park Dalmarnock Road Glasgow G73 1AN United Kingdom…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 contacts → | ||||
Partial evidence “West Special Fasteners is a trusted UK manufacturer of high-performance stainless steel and nickel alloy fasteners.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 19 contacts → | ||||
Indirect evidence “OTAQ is a manufacturer of hi-tech products and solutions for the offshore energy, oceanographic and diving industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 16 contacts → | ||||
Strong evidence “Bolt King is a leading global supplier of certified fasteners and bolting products specifically designed for the Oil and Gas, Subsea, Power Generation, and Automotive sectors.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 contacts → | ||||
Partial evidence “Renown Oil and Gas is a specialist support service to major manufacturers of subsea engineered components.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Partial evidence “IPP Stainless Steel Fasteners is a specialist UK Manufacturer of QUALITY CRITICAL Fully Certified and Fully Traceable Bolting to customer specification.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 12 contacts → | ||||
Indirect evidence “Tool Tec is an award winning global supplier to the offshore oil and gas industry providing in-house design, development and manufacture of standard and customised remote…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Partial evidence “OceanTools is a world leading subsea engineering company specialising in the design and manufacture of equipment for the professional offshore and underwater markets.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Partial evidence “SEAC is the UK's leading manufacturer and supplier of specialised fasteners and fixings for the construction and roofing industry.” 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 81 subsea fastener companies based in the United Kingdom
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Subsea fastener companies based in the United Kingdom at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 81 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 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.
- What qualifies
- Companies headquartered in the United Kingdom 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. Companies headquartered outside United Kingdom 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, 534 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.
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 based in the United Kingdom?
RevenueBase identified 81 subsea fastener companies headquartered in the United Kingdom 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?
Lonestar Fasteners Europe A Leading API 20e, 20f Bsl-2 3 Manufacturer, headquartered in Wednesbury, tops this list with the largest team on record.
Which city has the most subsea fastener companies?
Aberdeen leads with 9 headquartered companies, followed by Wolverhampton (6) and Wednesbury (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 534 verified decision-maker contacts tracked across these 81 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.
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