Company lists · Data refreshed September 2026

Top 14 Offshore platform engineering companies based in London, United Kingdom

RevenueBase identified 45 offshore platform engineering companies headquartered in London, United Kingdom as of September 2026 and tracks 5,326 professional contacts across them, including 707 with verified work emails and 799 with mobile numbers. Aberdeen is the largest hub.

This list covers offshore platform engineering companies headquartered in London, 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 13, 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 13, 2026 86% judged on-target in blind review
45Companies
5,326Contacts tracked
707Verified emails
799Mobile numbers
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The 14 largest offshore platform engineering companies based in London, United Kingdom

Ranked by team size
Top 14 of 45 offshore platform engineering companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to offshore platform engineering companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 13, 20265,001-10,0002,679 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 13, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 13, 20261,001-5,0001,699 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 13, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 13, 202611-50134 contacts →

Strong evidence

“The International Marine Contractors Association (IMCA) is the global business association for construction and engineering companies working in offshore energy - both wind and…”

Source: RevenueBase Database · checked Sep 13, 2026
4Strong evidenceLondon, United KingdomHQ checked Sep 13, 202651-200106 contacts →

Strong evidence

“CTS Offshore & Marine Ltd is an independent provider of engineering services tailored for energy and material markets.”

Source: RevenueBase Database · checked Sep 13, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 13, 202611-5035 contacts →

Partial evidence

“BPP-Tech | Cables | Renewables provides engineering services to the energy, maritime and defence sectors.”

Source: RevenueBase Database · checked Sep 13, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 13, 202611-5030 contacts →

Partial evidence

“Our global organic talent allows us to deliver specialized knowledge and solutions for offshore operations to our clients around the world.”

Source: RevenueBase Database · checked Sep 13, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 13, 2026501-1,00028 contacts →

Indirect evidence

“PetroGas” Company was founded in 1998.”

Source: RevenueBase Database · checked Sep 13, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 13, 202611-5027 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 13, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 13, 202611-508 contacts →

Partial evidence

“HIA Energy delivers premium offshore survey solutions, project delivery, and specialist personnel to the global energy and marine sectors.”

Source: RevenueBase Database · checked Sep 13, 2026
10Strong evidenceLondon, United KingdomHQ checked Sep 13, 20261-105 contacts →

Strong evidence

“We are a marine consultancy and offshore engineering company that builds up on the best industry practice with innovative solutions.”

Source: RevenueBase Database · checked Sep 13, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 13, 20261-105 contacts →

Partial evidence

“Global Greenergy Group, founded in 2021, has developed a proprietary installation vessel that offers a dramatic improvement in cost, performance and risk for offshore wind…”

Source: RevenueBase Database · checked Sep 13, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 13, 20261-105 contacts →

Partial evidence

“Deploying broad technical and engineering solutions to help oil and gas companies maximise value from their assets.”

Source: RevenueBase Database · checked Sep 13, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 13, 20261-103 contacts →

Partial evidence

“We are an innovative marine and offshore communication company with a unique blend of expert industry veterans, new wave engineers and visual artists from the digital generation.”

Source: RevenueBase Database · checked Sep 13, 2026
14Strong evidenceLondon, United KingdomHQ checked Sep 13, 202611-502 contacts →

Strong evidence

“About Offshore Energy Offshore Energy provides integrated project management and solution-based engineering services to the Oil & Gas, Subsea Telecommunications and Renewable…”

Source: RevenueBase Database · checked Sep 13, 2026

Showing 14 of 45 offshore platform engineering companies based in London, United Kingdom

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Offshore platform engineering companies based in London, United Kingdom at a glance

As of Sep 13, 2026
13.3%Verified-email coverage
15.0%Mobile-number coverage
118.4Average contacts per company
11-50Median size (employees)
184.4%Largest-city concentration · Aberdeen
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
15
51-200
3
201-500
1
501-1,000
4
1,001-5,000
1
5,001-10,000
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

Company record updated

Median 79.0d

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 engineering 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 London, United Kingdom whose own description of what they do matches “offshore platform engineering 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 offshore platform engineering 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 offshore platform engineering companies, and records with no verified work email. Companies headquartered outside London 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, 707 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 13, 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 engineering companies by metro in the United Kingdom

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 engineering 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 offshore platform engineering companies are there based in London, United Kingdom?

RevenueBase identified 45 offshore platform engineering companies headquartered in London, 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 engineering companies?

Aberdeen leads with 83 headquartered companies, followed by London (45) and Norwich (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 707 verified decision-maker contacts tracked across these 45 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 13, 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.