Company lists · Data refreshed September 2026
Top 25 Slant hole drilling companies worldwide
RevenueBase identified 2,026 slant hole drilling companies worldwide as of September 2026 and tracks 56,017 professional contacts across them, including 9,865 with verified work emails. The United States is the largest market and Calgary the largest hub.
This list covers slant hole drilling companies worldwide, 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. Country and city lists for slant hole drilling companies follow the table.
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 worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,285 contacts → | ||||
Partial evidence “Established in 1890, Boart Longyear is the world’s leading innovative provider of drilling services, manufacturer of productivity-driven drilling equipment and performance…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,176 contacts → | ||||
Indirect evidence “Ensign Energy Services Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,043 contacts → | ||||
Indirect evidence “Established in 1962, The Redpath Group is an experienced, full-service solutions provider to the global underground mining industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,447 contacts → | ||||
Partial evidence “Major Drilling Group International Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,317 contacts → | ||||
Partial evidence “One of the leading geology companies in the world, GEOSOL excels in the undertaking of geological drilling and mineral engineering programs.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,200 contacts → | ||||
Partial evidence “PT Pertamina Drilling Services Indonesia (Pertamina Drilling) was established on June 13th, 2008.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,134 contacts → | ||||
Partial evidence “THE ULTIMATE PARTNER IN WELLBORE PLACEMENT Scientific Drilling International is an independent service provider offering a complete high accuracy wellbore placement and drilling…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,097 contacts → | ||||
Partial evidence “HMH is a premier drilling solutions provider - delivering a broad portfolio of products and services that are designed to be the safest and most efficient in the industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 994 contacts → | ||||
Indirect evidence “Capital Limited is a leading service provider for the exploration and mining industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 994 contacts → | ||||
Partial evidence “Master Drilling, established in 1986, is a global technology solutions driven company; focused on delivering a fully mechanised range of services to the mining sector.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 918 contacts → | ||||
Indirect evidence “With a client-centric approach, DMC Mining Services is renowned for being a proven partner capable of delivering safe and innovative solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 697 contacts → | ||||
Partial evidence “KUWAIT DRILLING CO.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 504 contacts → | ||||
Indirect evidence “Geotec S.A, empresa de perforación perteneciente a Boyles Bros, fue fundado en 1963 posicionándose como una empresa líder en la industria minera peruana.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 480 contacts → | ||||
Indirect evidence “Sitio web Gardilcic” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 480 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 458 contacts → | ||||
Partial evidence “Foraco International SA (TSX: FAR) is a leading global mineral drilling services company that provides a comprehensive and reliable service offering in mining and water projects.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 454 contacts → | ||||
Indirect evidence “Procon Mining and Tunnelling Ltd.(‘Procon’) has the capacity to build and operate even the most complex mining projects.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 451 contacts → | ||||
Partial evidence “PETREVEN is a low impact Drilling Contractor (established in 1998 in Venezuela).” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 440 contacts → | ||||
Partial evidence “As the largest privately-held domestic land drilling contractor in the United States, Cactus provides competent, motivated personnel utilizing premium equipment to meet and exceed…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 416 contacts → | ||||
Partial evidence “West-African-Based Mineral driller leading in specialized and diverse drilling applications equipped with best in class rig fleet, workshop and employees Vision: “To be the…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 407 contacts → | ||||
Partial evidence “Ausdrill is a premium Australian drilling company that provides exploration drilling, production drilling, blasting services and geotechnical services for mining majors through to…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 365 contacts → | ||||
Indirect evidence “En GEOVITA somos líderes en construcción y desarrollo subterráneo, con un enfoque al futuro e innovación, que surge en el año 1989 especializándose en operaciones para la minería…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 355 contacts → | ||||
Indirect evidence “Welcome to Lucas!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 353 contacts → | ||||
Partial evidence “ENERGOLD DRILLING is a leading global drilling solutions company that services the mining, infrastructure, and geothermal sectors in the Americas, Africa, and Europe.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 339 contacts → | ||||
Partial evidence “Blasting & Excavating, or B&E, is the benchmark in the drilling and blasting industry in Southern Africa.” 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 2,026 slant hole drilling companies worldwide
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Slant hole drilling companies worldwide at a glance
As of Sep 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for slant hole drilling companies are linked below.
- What qualifies
- Companies worldwide 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.
- 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, 9,865 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.
Slant hole drilling companies by location
12 lists · largest firstEvery Slant hole drilling companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Slant hole drilling companies based in the United States306
- Slant hole drilling companies based in Canada200
- Slant hole drilling companies based in Australia198
- Slant hole drilling companies based in the United Kingdom94
- Slant hole drilling companies based in Brazil69
- Slant hole drilling companies based in Peru55
- Slant hole drilling companies based in South Africa55
- Slant hole drilling companies based in Chile53
- Slant hole drilling companies based in Germany52
- Slant hole drilling companies based in Indonesia45
- Slant hole drilling companies based in Mexico34
- Slant hole drilling companies based in the Netherlands30
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 worldwide?
RevenueBase identified 2,026 slant hole drilling companies worldwide 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?
Boart Longyear, headquartered in West Valley City, tops this list with the largest team on record.
Which country has the most slant hole drilling companies?
The United States leads with 306 companies, followed by Canada (200) and Australia (198). Every slant hole drilling companies list by country and city is linked on this page.
Which city has the most slant hole drilling companies?
Calgary leads with 23 headquartered companies, followed by Perth (20) and Ankara (18).
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 9,865 verified decision-maker contacts tracked across these 2,026 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.