Company lists · Data refreshed September 2026

Top 23 Horizontal drilling service providers based in the United Kingdom

Name: Horizontal drilling service providers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 61 companies tracked

RevenueBase identified 61 horizontal drilling service providers headquartered in the United Kingdom as of September 2026 and tracks 8,071 professional contacts across them, including 1,490 with verified work emails. Aberdeen is the largest hub.

This list covers horizontal drilling service providers 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 20, 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 20, 2026 86% judged on-target in blind review

61Companies

8,071Contacts tracked

1,490Verified emails

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The 23 largest horizontal drilling service providers based in the United Kingdom

Ranked by team size

Top 23 of 61 horizontal drilling service providers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to horizontal drilling service providers: 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 20, 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 20, 2026
2	Saltire Energy Group	Partial evidence	Aberdeen, United KingdomHQ checked Sep 20, 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 20, 2026
3	Merlin	Indirect evidence	Perth, United KingdomHQ checked Sep 20, 2026	11-50	37 contacts →
	Indirect evidence “Independent delivery assurance and support for extended reach and challenging high angle wells – from upfront engineering, training, through to execution in the field, Merlin…” Source: RevenueBase Database · checked Sep 20, 2026
4	Gorevega	Partial evidence	Aberdeen, United KingdomHQ checked Sep 20, 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 20, 2026
5	Stockton Drilling Limited	Strong evidence	Wakefield, United KingdomHQ checked Sep 20, 2026	11-50	33 contacts →
	Strong evidence “Stockton specialise in all areas of pipeline construction and installation, civil and mechanical works and Horizontal Directional Drilling (HDD)- now regarded as the industry…” Source: RevenueBase Database · checked Sep 20, 2026
6	PBU UK LTD	Partial evidence	Sedgefield, United KingdomHQ checked Sep 20, 2026	51-200	29 contacts →
	Partial evidence “PBU (UK) Ltd is one of the leading directional drilling companies in the UK.” Source: RevenueBase Database · checked Sep 20, 2026
7	Dando Drilling International	Partial evidence	Arundel, United KingdomHQ checked Sep 20, 2026	51-200	29 contacts →
	Partial 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 20, 2026
8	Drilcorp	Partial evidence	Seaham, United KingdomHQ checked Sep 20, 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 20, 2026
9	Hydrovolve	Indirect evidence	Dyce, United KingdomHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “HydroVolve offers an integrated range of pioneering technology products and services across the well lifecycle – all designed, engineered and manufactured inhouse by our dedicated…” Source: RevenueBase Database · checked Sep 20, 2026
10	British Drilling And Freezing Company Limited	Partial evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “British Drilling and Freezing Company Limited (BDF) and its Boldon Drilling and BB Drilling divisions, is the UK's largest onshore drilling contractor.” Source: RevenueBase Database · checked Sep 20, 2026
11	One&zero	Partial evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Wireline \| Interventions \| Drilling \| MLWD – Operations Assurance: At one & zero, we are committed to driving unparalleled performance and delivering exceptional results in…” Source: RevenueBase Database · checked Sep 20, 2026
12	EOS Europe LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “EOS Europe Ltd (EOS) deliver a range of specialist services to the oil and gas industry, specifically focusing on the offshore drilling and production markets.” Source: RevenueBase Database · checked Sep 20, 2026
13	Slimdril International	Indirect evidence	Lowestoft, United KingdomHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “SlimDril international specialize in helping HDD contractors with their downhole tooling requirements.” Source: RevenueBase Database · checked Sep 20, 2026
14	JB Site Investigations LTD	Partial evidence	Berwick-upon-tweed, United KingdomHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “JB Site Investigations Ltd is a drilling contractor company that strives to provide high quality professional drilling and remain highly respected as leaders in this field.” Source: RevenueBase Database · checked Sep 20, 2026
15	Nucliex	Partial evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Partial evidence “Nucliex delivers high quality products and services in well construction, drilling technologies, and well flow management.” Source: RevenueBase Database · checked Sep 20, 2026
16	Consortium Drilling LTD	Partial evidence	Sheffield, United KingdomHQ checked Sep 20, 2026	51-200	4 contacts →
	Partial evidence “Consortium Drilling is a leading onshore deep drilling contractor based in the heart of the UK.” Source: RevenueBase Database · checked Sep 20, 2026
17	Scotia Drilling Consultants LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “Scotia Drilling Consultants offer a comprehensive range of services to the drilling industry, providing tailored solutions designed to meet the unique requirements of each…” Source: RevenueBase Database · checked Sep 20, 2026
18	Cathedral Energy Services LTD	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	201-500	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
19	UBL Drilling	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	3 contacts →
	Partial evidence “UBL Drilling is a family owned company which has expanded over the years with thoughtful, measured growth to keep us closely tied to our tradition work ethic and moreover so our…” Source: RevenueBase Database · checked Sep 20, 2026
20	Oxford Well Engineering Limited London	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “Oxford Well Engineering (OWE) is an independent, London-based well engineering and digital drilling optimization consultancy.” Source: RevenueBase Database · checked Sep 20, 2026
21	Oilfield International Services LTD	Partial evidence	Dundee, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “Oilfield International Services (OIS) empowers small-to-medium IOCs to overcome complex drilling challenges.” Source: RevenueBase Database · checked Sep 20, 2026
22	DCM Drillquip LTD	Indirect evidence	Nuneaton, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “For an excellent service from a name you can rely on contact DCM Drillquip Ltd.” Source: RevenueBase Database · checked Sep 20, 2026
23	PRO Drill Limited	Indirect evidence	Kings Lynn, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 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: horizontal drilling service providers. 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 horizontal drilling service providers.
Partial evidence: Its own public description names part of horizontal drilling service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name horizontal drilling service providers. 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 23 of 61 horizontal drilling service providers based in the United Kingdom

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Horizontal drilling service providers based in the United Kingdom at a glance

As of Sep 20, 2026

18.5%Verified-email coverage

132.3Average contacts per company

11-50Median size (employees)

18.0%Largest-city concentration · Aberdeen

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

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 61 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 horizontal drilling service providers, 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 “horizontal drilling service providers”. 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 horizontal drilling service providers), 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 horizontal drilling service providers, 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, 1,490 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 20, 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.

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 horizontal drilling service providers, 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 horizontal drilling service providers are there based in the United Kingdom?

RevenueBase identified 61 horizontal drilling service providers 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 horizontal drilling service providers?

Aberdeen leads with 11 headquartered companies, followed by London (5) and Dundee (2).

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 1,490 verified decision-maker contacts tracked across these 61 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 20, 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.