Company lists · Data refreshed September 2026

Top 25 Offshore platform installation services based in the United Kingdom

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, how directly it supports the match, 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 SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
300Companies
26,827Contacts tracked
5,409Verified emails
2,647Mobile numbers
Unlock all 300 companies Free signup · no credit card · 500 free credits

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. Evidence rates how directly each company's own description names offshore platform installation services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Ensco PLCIndirect evidence
London, United KingdomHQ checked Sep 5, 20265,001-10,0002,679

“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: company website · checked Sep 5, 2026
2
Odfjell DrillingIndirect evidence
Aberdeen, United KingdomHQ checked Sep 5, 20261,001-5,0001,864

“Odfjell Drilling is an international drilling company with around 1,500 employees with operations around the world.”

Source: company website · checked Sep 5, 2026
3
Borr DrillingPartial evidence
London, United KingdomHQ checked Sep 5, 20261,001-5,0001,699

“Borr Drilling Limited is an offshore shallow-water drilling contractor providing worldwide offshore drilling services to the oil and gas industry.”

Source: company website · checked Sep 5, 2026
4
Altera InfrastructurePartial evidence
Aberdeenshire, United KingdomHQ checked Sep 5, 2026501-1,000955

“Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.”

Source: company website · checked Sep 5, 2026
5
Dolphin DrillingPartial evidence
Aberdeen, United KingdomHQ checked Sep 5, 2026201-500694

“Dolphin Drilling is the offshore drilling pioneer of the past and for the future.”

Source: company website · checked Sep 5, 2026
6
Altrad SparrowsIndirect evidence
Aberdeen, United KingdomHQ checked Sep 5, 20261,001-5,000547

“Altrad Sparrows is a global provider of specialist equipment and integrated engineering services to the energy and industrial sectors.”

Source: company website · checked Sep 5, 2026
7
Boskalis Subsea ServicesPartial evidence
Aberdeen, United KingdomHQ checked Sep 5, 2026201-500516

“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: company website · checked Sep 5, 2026
8
PBS By PonticelliIndirect evidence
Westhill, United KingdomHQ checked Sep 5, 2026501-1,000473

“Ponticelli, Brand and Semco joined forces in 2019 to establish “PBS by Ponticelli”, an Aberdeen-based integrated services consortium led by Ponticelli.”

Source: company website · checked Sep 5, 2026
9
Global MarinePartial evidence
Chelmsford, United KingdomHQ checked Sep 5, 2026501-1,000339

“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: company website · checked Sep 5, 2026
10
2h OffshorePartial evidence
Woking, United KingdomHQ checked Sep 5, 2026201-500286

“2H Offshore delivers leading-edge advanced systems engineering for all types of offshore structures in the oil and gas and renewable energy sectors.”

Source: company website · checked Sep 5, 2026
11
Motive Offshore Group LTDPartial evidence
Banff, United KingdomHQ checked Sep 5, 2026201-500283

“Motive Offshore Group specialises in the design, manufacture, rental, and inspection of marine and lifting equipment.”

Source: company website · checked Sep 5, 2026
12Great Yarmouth, United KingdomHQ checked Sep 5, 2026201-500279

“Claxton, an AF Gruppen Company, combines decades of industry experience, proprietary technology, and exceptional service quality to cut through offshore installation and…”

Source: company website · checked Sep 5, 2026
13Pembrokeshire, United KingdomHQ checked Sep 5, 2026501-1,000266

“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: company website · checked Sep 5, 2026
14
TEXOIndirect evidence
Aberdeen, United KingdomHQ checked Sep 5, 202651-200222

“TEXO is a dynamic, UK-based industrial services provider that believes in meeting challenges head on.”

Source: company website · checked Sep 5, 2026
15
Swire Oilfield ServicesPartial evidence
Aberdeen, United KingdomHQ checked Sep 5, 2026501-1,000202

“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: company website · checked Sep 5, 2026
16
ActeonPartial evidence
Norwich, United KingdomHQ checked Sep 5, 20261,001-5,000192

“Acteon delivers data-driven, engineering-led solutions across the lifecycle of offshore energy infrastructure.”

Source: company website · checked Sep 5, 2026
17
Wilton EngineeringIndirect evidence
Middlesbrough, United KingdomHQ checked Sep 5, 2026201-500188

“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: company website · checked Sep 5, 2026
18
OSBITIndirect evidence
Northumberland, United KingdomHQ checked Sep 5, 2026201-500171

“Osbit’s vision is to unlock a clean energy future by creating smarter technology.”

Source: company website · checked Sep 5, 2026
19
Aquaterra EnergyPartial evidence
Norwich, United KingdomHQ checked Sep 5, 202651-200167

“Aquaterra Energy provides intelligently engineered products and services for well access and offshore developments - supporting efficient operations across the full life cycle of…”

Source: company website · checked Sep 5, 2026
20
Eastgate EngineeringIndirect evidence
Thornaby-on-tees, United KingdomHQ checked Sep 5, 2026201-500163

“Eastgate Engineering is an Electrical and Instrumentation contractor that delivers complex, high-risk infrastructure projects with cost certainty, without compromising safety or…”

Source: company website · checked Sep 5, 2026
21
Enshore SubseaIndirect evidence
Blyth, United KingdomHQ checked Sep 5, 202651-200161

“The globally trusted delivery experts in installing and protecting critical subsea infrastructure.”

Source: company website · checked Sep 5, 2026
22Port Glasgow, United KingdomHQ checked Sep 5, 2026201-500156

“Ferguson Marine (Port Glasgow) Limited is Scotland's leading company in new build, refit and ship repair.”

Source: company website · checked Sep 5, 2026
23Lowestoft, United KingdomHQ checked Sep 5, 2026n/a155

“Seatrium Offshore Renewable Services Ltd (Seatrium ORS) has over 55 years of unparalleled expertise and experience in the offshore energy industry.”

Source: company website · checked Sep 5, 2026
24Aberdeen, United KingdomHQ checked Sep 5, 202651-200148

“MDL - We Build Innovation.”

Source: company website · checked Sep 5, 2026
25Portlethen, United KingdomHQ checked Sep 5, 202651-200134

“Interocean provide a comprehensive range of services to the offshore oil and gas, marine, and renewable sectors.”

Source: company website · checked Sep 5, 2026

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
11-50Median size (employees)
AberdeenLargest hub · 64 HQs
2,647Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
114
11-50
79
51-200
52
201-500
24
501-1,000
16
1,001-5,000
12
5,001-10,000
1

Verified emails by last verification

0–30
5,040
31–60
311
61–90
0
90–180
0
180+
58

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 evidence 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 SmartSearch, 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.
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 an evidence 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
  • Offshore platform installation services in London27

Frequently asked

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 SmartSearch, 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.