Company lists · Data refreshed September 2026
Top 25 Slant hole drilling companies based in the United Kingdom
RevenueBase identified 94 slant hole drilling companies headquartered in the United Kingdom as of September 2026 and tracks 1,750 professional contacts across them, including 133 with verified work emails. London is the largest hub.
This list covers slant hole drilling companies 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 22, 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.
The 25 largest slant hole drilling companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 52 contacts → | ||||
Partial evidence “ADP Group are an independent contractor specialising in the supply of drilling and associated services across the UK.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 30 contacts → | ||||
Partial evidence “MGS manufactures and supplies specialist quality products for use in ground investigation, water well, and geothermal drilling applications, as well as a variety of railway…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 22 contacts → | ||||
Partial evidence “ADS Drilling are a drilling contractor with over 35 years in the drilling and site investigation industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 18 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 contacts → | ||||
Partial evidence “Welcome to Endeavour Drilling Ltd the Geo Environmental specialists who can provide a nationwide service.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 9 contacts → | ||||
Partial evidence “Groundsource Drilling & Contracting Limited is a specialised drilling contractor providing a quality, professional, and reliable drilling service to the public, private and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 contacts → | ||||
Partial evidence “Drilltec Ltd is a Diamond Drilling Company offering a range of specialist, commercial services to clients throughout the South East of England and the nation at large from our…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Partial evidence “Grampian Geotechnical owns and operates a wide range of drilling rigs and specialist equipment, capable of carrying out ground investigations from individual residential…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Partial evidence “Drillwell Limited is the leading supplier and manufacturer of Drilling Equipment such as Drill Rods, Casing, Core barrels, Drilling Equipment, Drilling Rigs, Bits and Pumps.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Partial evidence “Marriott Geotechnical Drilling (MGeoD), a Division of the Marriott Drilling Group, provides high quality specialist geotechnical and geo-environmental drilling and site…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Partial evidence “Denver Drilling Services LTD was established in 2012 and quickly earned a reputation as a reliable diamond drilling and cutting specialist.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “At Drift, we deliver precision drilling solutions that unlock secure water supplies and sustainable energy for projects across the UK.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Partial evidence “Ground Support Services (UK) Ltd is a specialist drilling contractor to the geotechnical and civil engineering sectors and has gained a wealth of experience providing a complete…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “Impact Geotechnical Ltd was established in 2019 by Rob Marsh, Shaun Gilbrook and Graham Carter.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Strong evidence “IDS is an industry leader in the manufacture and supply of in-hole tools and associated products for exploration/utility drilling and subcontract precision and general engineering.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Partial evidence “Established in 2016, we are an independent drilling company based in Gloucestershire.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: slant hole drilling companies. 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 slant hole drilling companies.
- Partial evidence
- Its own public description names part of slant hole drilling companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name slant hole drilling companies. 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 94 slant hole drilling companies based in the United Kingdom
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Slant hole drilling companies based in the United Kingdom at a glance
As of Sep 22, 2026Companies by employee count
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 94 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 slant hole drilling 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 the United Kingdom whose own description of what they do matches “slant hole drilling 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 slant hole drilling 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 slant hole drilling companies, 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, 133 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 22, 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 slant hole drilling 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 slant hole drilling companies are there based in the United Kingdom?
RevenueBase identified 94 slant hole drilling companies 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?
ADP Group LTD, headquartered in Wotton-Under-Edge, tops this list with the largest team on record.
Which city has the most slant hole drilling companies?
London leads with 9 headquartered companies, followed by Aberdeen (3) and Wigan (3).
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 133 verified decision-maker contacts tracked across these 94 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 22, 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.
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