Company lists · Data refreshed October 2026

Top 25 Deep water drilling contractors based in the United Kingdom

RevenueBase identified 195 company matches for deep water drilling contractors associated with the United Kingdom as of October 2026 and tracks 14,322 professional contacts across them, including 2,409 with verified work emails. Aberdeen is the largest hub.

This list covers company matches for deep water drilling contractors associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 11, 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 RevenueBase SmartSearch · Exact Recorded Oct 11, 2026 How this list was built
195Companies
14,322Contacts tracked
2,409Verified emails
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The 25 largest deep water drilling contractors based in the United Kingdom

Ranked by team size
Top 25 of 195 company matches for deep water drilling contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Oct 11, 20265,001-10,0002,887 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchAberdeen, United KingdomHQ recorded Oct 11, 20261,001-5,0001,894 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 11, 20261,001-5,0001,805 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4Exact matchAberdeen, United KingdomHQ recorded Oct 11, 2026201-500756 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchAberdeen, United KingdomHQ recorded Oct 11, 2026201-500558 contacts →

Exact match

“Boskalis Subsea Services is a world-leading provider of specialist subsea solutions for the offshore energy industry, seamlessly integrating services to deliver optimum results.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchFareham, United KingdomHQ recorded Oct 11, 202651-200390 contacts →

Exact match

“Boskalis Westminster Ltd (BWL) is the leading dredging contractor in the UK and Ireland.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchWesthill, United KingdomHQ recorded Oct 11, 2026501-1,000384 contacts →

Exact match

“Established in 1985, Ashtead Technology has grown organically and through strategic acquisition to become the leading provider of equipment rental solutions, advanced underwater…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchAberdeen, United KingdomHQ recorded Oct 11, 2026501-1,000196 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchNorwich, United KingdomHQ recorded Oct 11, 202651-200160 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchGreat Yarmouth, United KingdomHQ recorded Oct 11, 202651-200115 contacts →

Exact match

“Derrick Service UK Ltd (DSL) is a diversified oil & gas construction company which provides a broad range of products and services to the market from our Worldwide locations.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 11, 2026201-500109 contacts →

Exact match

“Hobark International Limited (HIL) is an Integrated Services Company whose subsidiaries: DrillPet International Limited (DIL), Uniterm Nigeria Limited (UNL), UltiProc Nigeria…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202651-20090 contacts →

Exact match

“Awilco Drilling Limited was incorporated in December 2009 in connection with the acquisition of the two semi submersible drilling rigs, WilPhoenix (previously Arctic II) and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchAberdeen, United KingdomHQ recorded Oct 11, 20261,001-5,00063 contacts →

Exact match

“RDS is an engineering specialist working for oil and gas companies and major topsides and drilling contractors.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202651-20062 contacts →

Exact match

“First Marine Solutions is a leading international energy service and equipment organisation with operations worldwide, We provide expertise, technology, techniques and support…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202651-20058 contacts →

Exact match

“Established in 1986, Saltire Energy Group supplies high-quality drilling equipment to the global oil and gas industry from its headquarters in Aberdeen and seven bases around the…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchPontypridd, United KingdomHQ recorded Oct 11, 202651-20052 contacts →

Exact match

“EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202611-5049 contacts →

Exact match

“KD Marine are a commercial diving contractor providing underwater intervention services to the offshore oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchRochester, United KingdomHQ recorded Oct 11, 202651-20046 contacts →

Exact match

“Marine Contractors specialising in: Marine Civil Engineering and Construction.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchLowestoft, United KingdomHQ recorded Oct 11, 202651-20046 contacts →

Exact match

“AFS Ltd is an independently owned manufacturing company.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202651-20040 contacts →

Exact match

“GoreVega supports the global oil and gas industry by providing valuable technical expertise for operators and service companies at each stage of a well’s lifecycle, from drilling…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202611-5038 contacts →

Exact match

“EFC, an Oil States company, offers a multi-disciplined mechatronics approach to solving our client’s technical challenges in the oilfield drilling industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202651-20036 contacts →

Exact match

“At RigQuip, we’re not just drilling equipment experts-we’re your strategic partner in energy asset performance.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchAberdeen, United KingdomHQ recorded Oct 11, 202611-5035 contacts →

Exact match

“TIS Manufacturing is a specialist in the design, manufacture, refurbishment and rental of well service and subsea control equipment for the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Oct 11, 202611-5031 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchArundel, United KingdomHQ recorded Oct 11, 202651-20026 contacts →

Exact match

“Dando Drilling International has over 150 years experience of supplying drilling rigs and equipment for the water well, mineral exploration, geotechnical & geothermal sectors.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 195 deep water drilling contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,409 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Deep water drilling contractors based in the United Kingdom at a glance

As of Oct 11, 2026
16.8%Verified-email coverage
73.4Average contacts per company
11-50Median size (employees)
23.6%Largest-city concentration · Aberdeen
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
83
11-50
60
51-200
24
201-500
10
501-1,000
7
1,001-5,000
5
5,001-10,000
3

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 195 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United Kingdom whose business descriptions match “deep water drilling contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,409 professional contacts with verified work emails across the full matched dataset. 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 October 11, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “deep water drilling contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many deep water drilling contractors are there based in the United Kingdom?

RevenueBase identified 195 company matches for deep water drilling contractors associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ensco PLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most deep water drilling contractors?

Aberdeen leads with 46 company records, followed by London (31) and Westhill (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,409 professional contacts with verified work emails tracked across these 195 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 11, 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.