Company lists · Data refreshed September 2026

Top 25 Exploration drilling contractors based in the United Kingdom

Name: Exploration drilling contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 267 companies tracked

RevenueBase identified 267 exploration drilling contractors headquartered in the United Kingdom as of September 2026 and tracks 14,281 professional contacts across them, including 2,116 with verified work emails. Aberdeen is the largest hub.

This list covers exploration drilling contractors 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 16, 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 16, 2026 86% judged on-target in blind review

267Companies

14,281Contacts tracked

2,116Verified emails

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The 25 largest exploration drilling contractors based in the United Kingdom

Ranked by team size

Top 25 of 267 exploration drilling contractors based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to exploration drilling contractors: 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 16, 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 16, 2026
2	Borr Drilling	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,699 contacts →
	Strong 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 16, 2026
3	Dolphin Drilling	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 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 16, 2026
4	Derrick Services UK LTD	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 16, 2026	51-200	111 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
5	Awilco Drilling	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	51-200	88 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
6	HRH Geology	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	51-200	73 contacts →
	Indirect evidence “HRH Geology is the Oil and Gas Industry's leading provider of Operational Geology solutions.” Source: RevenueBase Database · checked Sep 16, 2026
7	RDS	Strong evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	1,001-5,000	70 contacts →
	Strong evidence “RDS is an engineering specialist working for oil and gas companies and major topsides and drilling contractors.” Source: RevenueBase Database · checked Sep 16, 2026
8	Global Resources Network	Indirect evidence	Dyce, United KingdomHQ checked Sep 16, 2026	11-50	63 contacts →
	Indirect evidence “Global Resources supply Drill Crew to the UK and International Oil & Gas Industry Our experience means we understand the need for QUALITY & COMPETENT crew.” Source: RevenueBase Database · checked Sep 16, 2026
9	ADC Energy LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	11-50	62 contacts →
	Partial evidence “ADC Energy Ltd.(formerly Aberdeen Drilling Consultants) is an international, family owned company with a worldwide reputation, gained by providing the highest standard of Rig…” Source: RevenueBase Database · checked Sep 16, 2026
10	ADP Group LTD	Strong evidence	Wotton-under-edge, United KingdomHQ checked Sep 16, 2026	11-50	52 contacts →
	Strong evidence “ADP Group are an independent contractor specialising in the supply of drilling and associated services across the UK.” Source: RevenueBase Database · checked Sep 16, 2026
11	Saltire Energy Group	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	51-200	51 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
12	Robore	Strong evidence	Mitcham, United KingdomHQ checked Sep 16, 2026	51-200	50 contacts →
	Strong evidence “Robore are the UK's largest Diamond Drilling, Sawing, Controlled Demolition & Passive Fire Protection contractor and undertake the most complex projects by offering and achieving…” Source: RevenueBase Database · checked Sep 16, 2026
13	GPS Marine Contractors LTD	Partial evidence	Rochester, United KingdomHQ checked Sep 16, 2026	51-200	44 contacts →
	Partial evidence “Marine Contractors specialising in: Marine Civil Engineering and Construction.” Source: RevenueBase Database · checked Sep 16, 2026
14	Rigquip	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “At RigQuip, we’re not just drilling equipment experts-we’re your strategic partner in energy asset performance.” Source: RevenueBase Database · checked Sep 16, 2026
15	Gorevega	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
16	Dando Drilling International	Strong evidence	Arundel, United KingdomHQ checked Sep 16, 2026	51-200	29 contacts →
	Strong evidence “Dando Drilling International has over 150 years experience of supplying drilling rigs and equipment for the water well, mineral exploration, geotechnical & geothermal sectors.” Source: RevenueBase Database · checked Sep 16, 2026
17	ADS Drilling	Strong evidence	Newton Abbot, United KingdomHQ checked Sep 16, 2026	11-50	22 contacts →
	Strong evidence “ADS Drilling are a drilling contractor with over 35 years in the drilling and site investigation industry.” Source: RevenueBase Database · checked Sep 16, 2026
18	Drilcorp	Partial evidence	Seaham, United KingdomHQ checked Sep 16, 2026	11-50	21 contacts →
	Partial evidence “Drilcorp was established in 1992 and since then has developed into one of the UK’s top drilling companies.” Source: RevenueBase Database · checked Sep 16, 2026
19	GB Land Engineering Limited	Strong evidence	West Calder, United KingdomHQ checked Sep 16, 2026	51-200	18 contacts →
	Strong evidence “GBLE is at the forefront of Scotland’s drilling industry and one of the preferred contractors for major house builders, Environmental, Mining, and Geotechnical Consultants, and…” Source: RevenueBase Database · checked Sep 16, 2026
20	Performance Energy LTD	Indirect evidence	Southampton, United KingdomHQ checked Sep 16, 2026	1-10	18 contacts →
	Indirect evidence “About: Who is Performance Energy?” Source: RevenueBase Database · checked Sep 16, 2026
21	Endeavour Drilling LTD	Partial evidence	Latchingdon, United KingdomHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Welcome to Endeavour Drilling Ltd the Geo Environmental specialists who can provide a nationwide service.” Source: RevenueBase Database · checked Sep 16, 2026
22	Castle & Pryor	Partial evidence	Farnborough, United KingdomHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “We are leading diamond drilling, concrete cutting, infrastructure and aviation maintenance specialists, accruing over three decades of expertise within the industry.” Source: RevenueBase Database · checked Sep 16, 2026
23	Islay Subsurface & Engineering LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	17 contacts →
	Indirect evidence “Islay Subsurface & Engineering Ltd was founded in 2010 by Iain Whyte to provide support to oil and gas operators, and their partners.” Source: RevenueBase Database · checked Sep 16, 2026
24	Marshall Drilling LTD	Partial evidence	Westbury, United KingdomHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Marshall Drilling offer a nationwide service providing a range of drilling services, specialising in geotechnical and geo-environmental rotary drilling.” Source: RevenueBase Database · checked Sep 16, 2026
25	Ardyne Technologies	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	51-200	16 contacts →
	Indirect evidence “Ardyne develops and supplies specialised technology and services to the global energy industry, focusing on reducing rig time spent on downhole casing removal in slot recovery /…” Source: RevenueBase Database · checked Sep 16, 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: exploration drilling contractors. 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 exploration drilling contractors.
Partial evidence: Its own public description names part of exploration drilling contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name exploration drilling contractors. 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 267 exploration drilling contractors based in the United Kingdom

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Exploration drilling contractors based in the United Kingdom at a glance

As of Sep 16, 2026

14.8%Verified-email coverage

53.5Average contacts per company

1-10Median size (employees)

11.2%Largest-city concentration · Aberdeen

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

142

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 267 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 exploration drilling contractors, 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 “exploration drilling contractors”. 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 exploration drilling contractors), 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 exploration drilling contractors, 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, 2,116 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 16, 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.

Exploration drilling contractors by metro

Exploration drilling contractors in Aberdeen30
Exploration drilling contractors in London30

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 exploration drilling contractors, 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 exploration drilling contractors are there based in the United Kingdom?

RevenueBase identified 267 exploration drilling contractors 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 exploration drilling contractors?

Aberdeen leads with 30 headquartered companies, followed by London (30) and Manchester (4).

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 2,116 verified decision-maker contacts tracked across these 267 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 16, 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.