Company lists · Data refreshed September 2026

Top 25 Offshore platform installation services based in the United Kingdom

Name: Offshore platform installation services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 300 companies tracked

RevenueBase identified 300 offshore platform installation services headquartered in the United Kingdom as of September 2026 and tracks 26,827 professional contacts across them, including 5,409 with verified work emails and 2,647 with mobile numbers. Aberdeen is the largest hub.

This list covers offshore platform installation services 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 5, 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 5, 2026 86% judged on-target in blind review

300Companies

26,827Contacts tracked

5,409Verified emails

2,647Mobile numbers

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The 25 largest offshore platform installation services based in the United Kingdom

Ranked by team size

Top 25 of 300 offshore platform installation services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to offshore platform installation services: 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	Ensco PLC	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	5,001-10,000	2,679 contacts →
	Indirect evidence “We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Source: RevenueBase Database · checked Sep 5, 2026
2	Odfjell Drilling	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,864 contacts →
	Indirect evidence “Odfjell Drilling is an international drilling company with around 1,500 employees with operations around the world.” Source: RevenueBase Database · checked Sep 5, 2026
3	Borr Drilling	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,699 contacts →
	Partial evidence “Borr Drilling Limited is an offshore shallow-water drilling contractor providing worldwide offshore drilling services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 5, 2026
4	Altera Infrastructure	Partial evidence	Aberdeenshire, United KingdomHQ checked Sep 5, 2026	501-1,000	955 contacts →
	Partial evidence “Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Source: RevenueBase Database · checked Sep 5, 2026
5	Dolphin Drilling	Partial evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	201-500	694 contacts →
	Partial evidence “Dolphin Drilling is the offshore drilling pioneer of the past and for the future.” Source: RevenueBase Database · checked Sep 5, 2026
6	Altrad Sparrows	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	1,001-5,000	547 contacts →
	Indirect evidence “Altrad Sparrows is a global provider of specialist equipment and integrated engineering services to the energy and industrial sectors.” Source: RevenueBase Database · checked Sep 5, 2026
7	Boskalis Subsea Services	Partial evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	201-500	516 contacts →
	Partial evidence “Boskalis Subsea Services is a world-leading provider of specialist subsea solutions for the offshore energy industry, seamlessly integrating services to deliver optimum results.” Source: RevenueBase Database · checked Sep 5, 2026
8	PBS By Ponticelli	Indirect evidence	Westhill, United KingdomHQ checked Sep 5, 2026	501-1,000	473 contacts →
	Indirect evidence “Ponticelli, Brand and Semco joined forces in 2019 to establish “PBS by Ponticelli”, an Aberdeen-based integrated services consortium led by Ponticelli.” Source: RevenueBase Database · checked Sep 5, 2026
9	Global Marine	Partial evidence	Chelmsford, United KingdomHQ checked Sep 5, 2026	501-1,000	339 contacts →
	Partial evidence “Global Marine is part of the Global Marine Group, and is a market leader in subsea cable installation and maintenance solutions to the telecoms and oil & gas sectors.” Source: RevenueBase Database · checked Sep 5, 2026
10	2h Offshore	Partial evidence	Woking, United KingdomHQ checked Sep 5, 2026	201-500	286 contacts →
	Partial evidence “2H Offshore delivers leading-edge advanced systems engineering for all types of offshore structures in the oil and gas and renewable energy sectors.” Source: RevenueBase Database · checked Sep 5, 2026
11	Motive Offshore Group LTD	Partial evidence	Banff, United KingdomHQ checked Sep 5, 2026	201-500	283 contacts →
	Partial evidence “Motive Offshore Group specialises in the design, manufacture, rental, and inspection of marine and lifting equipment.” Source: RevenueBase Database · checked Sep 5, 2026
12	Claxton Engineering Services	Strong evidence	Great Yarmouth, United KingdomHQ checked Sep 5, 2026	201-500	279 contacts →
	Strong evidence “Claxton, an AF Gruppen Company, combines decades of industry experience, proprietary technology, and exceptional service quality to cut through offshore installation and…” Source: RevenueBase Database · checked Sep 5, 2026
13	Ledwood Mechanical Engineering LTD	Indirect evidence	Pembrokeshire, United KingdomHQ checked Sep 5, 2026	501-1,000	266 contacts →
	Indirect evidence “Ledwood is an independent engineering, fabrication and construction company specialising in the delivery of complex projects across the oil, gas, process and energy industries.” Source: RevenueBase Database · checked Sep 5, 2026
14	TEXO	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	51-200	222 contacts →
	Indirect evidence “TEXO is a dynamic, UK-based industrial services provider that believes in meeting challenges head on.” Source: RevenueBase Database · checked Sep 5, 2026
15	Swire Oilfield Services	Partial evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	501-1,000	202 contacts →
	Partial evidence “Swire Energy Services, part of the global conglomerate, the Swire group, is the world's largest supplier of specialist offshore cargo carrying units to the global energy industry…” Source: RevenueBase Database · checked Sep 5, 2026
16	Acteon	Partial evidence	Norwich, United KingdomHQ checked Sep 5, 2026	1,001-5,000	192 contacts →
	Partial evidence “Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.” Source: RevenueBase Database · checked Sep 5, 2026
17	Wilton Engineering	Indirect evidence	Middlesbrough, United KingdomHQ checked Sep 5, 2026	201-500	188 contacts →
	Indirect evidence “Wilton Engineering is a multi-disciplined Engineering Services provider based on a 113 acre site by the River Tees in Middlesbrough, North-East England.” Source: RevenueBase Database · checked Sep 5, 2026
18	OSBIT	Indirect evidence	Northumberland, United KingdomHQ checked Sep 5, 2026	201-500	171 contacts →
	Indirect evidence “Osbit’s vision is to unlock a clean energy future by creating smarter technology.” Source: RevenueBase Database · checked Sep 5, 2026
19	Aquaterra Energy	Partial evidence	Norwich, United KingdomHQ checked Sep 5, 2026	51-200	167 contacts →
	Partial evidence “Aquaterra Energy provides intelligently engineered products and services for well access and offshore developments - supporting efficient operations across the full life cycle of…” Source: RevenueBase Database · checked Sep 5, 2026
20	Eastgate Engineering	Indirect evidence	Thornaby-on-tees, United KingdomHQ checked Sep 5, 2026	201-500	163 contacts →
	Indirect evidence “Eastgate Engineering is an Electrical and Instrumentation contractor that delivers complex, high-risk infrastructure projects with cost certainty, without compromising safety or…” Source: RevenueBase Database · checked Sep 5, 2026
21	Enshore Subsea	Indirect evidence	Blyth, United KingdomHQ checked Sep 5, 2026	51-200	161 contacts →
	Indirect evidence “The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Source: RevenueBase Database · checked Sep 5, 2026
22	Ferguson Marine Port Glasgow Limited	Indirect evidence	Port Glasgow, United KingdomHQ checked Sep 5, 2026	201-500	156 contacts →
	Indirect evidence “Ferguson Marine (Port Glasgow) Limited is Scotland's leading company in new build, refit and ship repair.” Source: RevenueBase Database · checked Sep 5, 2026
23	Seatrium Offshore Renewable Services LTD	Partial evidence	Lowestoft, United KingdomHQ checked Sep 5, 2026	n/a	155 contacts →
	Partial evidence “Seatrium Offshore Renewable Services Ltd (Seatrium ORS) has over 55 years of unparalleled expertise and experience in the offshore energy industry.” Source: RevenueBase Database · checked Sep 5, 2026
24	Maritime Developments Limited	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	51-200	148 contacts →
	Indirect evidence “MDL - We Build Innovation.” Source: RevenueBase Database · checked Sep 5, 2026
25	Interocean Marine Services	Partial evidence	Portlethen, United KingdomHQ checked Sep 5, 2026	51-200	134 contacts →
	Partial evidence “Interocean provide a comprehensive range of services to the offshore oil and gas, marine, and renewable sectors.” Source: RevenueBase Database · checked Sep 5, 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: offshore platform installation services. 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 offshore platform installation services.
Partial evidence: Its own public description names part of offshore platform installation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore platform installation services. 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 300 offshore platform installation services based in the United Kingdom

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Offshore platform installation services based in the United Kingdom at a glance

As of Sep 5, 2026

20.2%Verified-email coverage

9.9%Mobile-number coverage

89.4Average contacts per company

11-50Median size (employees)

21.3%Largest-city concentration · Aberdeen

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

114

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

5,0400–30

31131–60

061–90

090–180

58180+

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 offshore platform installation services, 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 “offshore platform installation services”. 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 offshore platform installation services), 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 offshore platform installation services, 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, 5,409 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 5, 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.

Offshore platform installation services by metro

Offshore platform installation services in Aberdeen64

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 offshore platform installation services, 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 offshore platform installation services are there based in the United Kingdom?

RevenueBase identified 300 offshore platform installation services 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?

Ensco PLC, headquartered in London, tops this list with the largest team on record.

Which city has the most offshore platform installation services?

Aberdeen leads with 64 headquartered companies, followed by London (27) and Bridge Of Don (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 5,409 verified decision-maker contacts tracked across these 300 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 5, 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.