Company lists · Data refreshed August 2026

Top 25 Coal geology consulting firms worldwide

Name: Coal geology consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 2,925 companies tracked

RevenueBase identified 2,925 coal geology consulting firms worldwide as of August 2026 and tracks 51,133 professional contacts across them, including 11,230 with verified work emails and 3,806 with mobile numbers. The United States is the largest market and Belo Horizonte the largest hub.

This list covers coal geology consulting firms 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 August 31, 2026. Country and city lists for coal geology consulting firms 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.

How to read this list RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

2,925Companies

51,133Contacts tracked

11,230Verified emails

3,806Mobile numbers

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The 25 largest coal geology consulting firms worldwide

Ranked by team size

Top 25 of 2,925 coal geology consulting firms worldwide, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to coal geology consulting firms: 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	PT Bukit Makmur Mandiri Utama	Partial evidence	Cilandak, IndonesiaHQ checked Aug 31, 2026	10001+	4,887 contacts →
	Partial evidence “PT Bukit Makmur Mandiri Utama (BUMA), is currently one of largest independent coal mining contractor in Indonesia.” Source: RevenueBase Database · checked Aug 31, 2026
2	SRK Consulting	Partial evidence	Vancouver, CA	1,001-5,000	2,258 contacts →
	Partial evidence “SRK Consulting is an independent, international group providing specialised consultancy services.” Source: RevenueBase Database · checked Aug 31, 2026
3	PT Darma Henwa TBK	Partial evidence	Jakarta Selatan, IndonesiaHQ checked Aug 31, 2026	5,001-10,000	2,110 contacts →
	Partial evidence “PT Darma Henwa Tbk, as an integrated mining services company, has several business activities as follows: • Coal Mining Contractor Services Company’s core business is coal mining…” Source: RevenueBase Database · checked Aug 31, 2026
4	PT Saptaindra Sejati SIS	Indirect evidence	Jakarta Selatan, IndonesiaHQ checked Aug 31, 2026	10001+	1,419 contacts →
	Indirect evidence “PT Saptaindra Sejati (SIS) is one of Indonesia’s largest mining contractors.” Source: RevenueBase Database · checked Aug 31, 2026
5	JMS Mining PVT LTD	Partial evidence	Kolkata, IndiaHQ checked Aug 31, 2026	1,001-5,000	1,038 contacts →
	Partial evidence “JMS Mining Private Limited is the pioneer & market leader in implementation of Mass Production Technology in Underground coal mining in India.” Source: RevenueBase Database · checked Aug 31, 2026
6	Kalimantan Prima Persada KPP Mining	Indirect evidence	East Jakarta, IndonesiaHQ checked Aug 31, 2026	5,001-10,000	924 contacts →
	Indirect evidence “PT Kalimantan Prima Persada (KPP) is a subsidiary of PT Pama Persada Nusantara (PAMA), one of the largest mining contractors in Southeast Asia.” Source: RevenueBase Database · checked Aug 31, 2026
7	Klohn Crippen Berger	Partial evidence	Belo Horizonte, BR	501-1,000	870 contacts →
	Partial evidence “KCB is a global engineering, geosciences, and environmental consulting firm driven by Passion, Integrity and a commitment to Excellence.” Source: RevenueBase Database · checked Aug 31, 2026
8	BGC Engineering INC	Partial evidence	Quebec, QC, CA	501-1,000	790 contacts →
	Partial evidence “BGC Engineering is an international consulting firm that provides professional services in applied earth sciences.” Source: RevenueBase Database · checked Aug 31, 2026
9	Pt. Anindya Wiraputra Konsult	Partial evidence	Jakarta, IndonesiaHQ checked Aug 31, 2026	1,001-5,000	623 contacts →
	Partial evidence “ANINDYA is an independent surveying company that provides quality and quantity superintending service for the coal and minerals industry, the oil and gas sector as well as marine…” Source: RevenueBase Database · checked Aug 31, 2026
10	ERG Engenharia	Indirect evidence	Mariana, BR	201-500	476 contacts →
	Indirect evidence “Empresa mineira, fundada em 1988, a ERG Engenharia mantém vivo o seu ideal de participar da construção de um mundo melhor e sustentável.” Source: RevenueBase Database · checked Aug 31, 2026
11	Thurber Engineering LTD	Indirect evidence	Squamish, BC, CA	501-1,000	472 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026
12	Geo-Technology Associates, Inc. GTA	Indirect evidence	Laurel, MD, US	501-1,000	457 contacts →
	Indirect evidence “Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Source: RevenueBase Database · checked Aug 31, 2026
13	PT Antareja Mahada Makmur Member Of PPA	Partial evidence	South Jakarta, IndonesiaHQ checked Aug 31, 2026	1,001-5,000	452 contacts →
	Partial evidence “Company Overview: Established on December 11, 2017, PT Antareja Mahada Makmur (AMM) is a rapidly growing coal mining contractor in Indonesia, dedicated to consistently meeting…” Source: RevenueBase Database · checked Aug 31, 2026
14	MPI	Indirect evidence	Kalgoorlie, AU	201-500	366 contacts →
	Indirect evidence “As specialist mining industry recruiters and consultants, we’ve been focused on matching the right person to the right mining job for over thirty years.” Source: RevenueBase Database · checked Aug 31, 2026
15	Thriveni Sainik Mining Private Limited	Partial evidence	Hazaribag, IndiaHQ checked Aug 31, 2026	501-1,000	323 contacts →
	Partial evidence “India's Largest Coal Mining MDO providing World Class Coal Mining Solutions.” Source: RevenueBase Database · checked Aug 31, 2026
16	Hillis-Carnes Engineering Associates, INC	Partial evidence	Frederick, MD, US	201-500	303 contacts →
	Partial evidence “Hillis-Carnes Engineering Associates, Inc.(HCEA) is a Mid-Atlantic based, multi-disciplined consulting engineering firm.” Source: RevenueBase Database · checked Aug 31, 2026
17	Rock Drill	Indirect evidence	Lima, PeruHQ checked Aug 31, 2026	1,001-5,000	295 contacts →
	Indirect evidence “Más de 25 años de experiencia, en Rock Drill brindamos seguridad e innovación en nuestros servicios de perforación de exploración diamantina, geotécnica, producción y servicios…” Source: RevenueBase Database · checked Aug 31, 2026
18	BVP Geotecnia E Hidrotecnia	Indirect evidence	Belo Horizonte, BR	201-500	287 contacts →
	Indirect evidence “Somos a BVP Geotecnia e Hidrotecnia.” Source: RevenueBase Database · checked Aug 31, 2026
19	Pt. Harmoni Panca Utama	Indirect evidence	Dki Jakarta, IndonesiaHQ checked Aug 31, 2026	1,001-5,000	269 contacts →
	Indirect evidence “Harmoni Panca Utama, PT.(HPU)*, is a private company established on the 25th January 2011 which focuses on mining services solution.” Source: RevenueBase Database · checked Aug 31, 2026
20	Degolyer And Macnaughton	Indirect evidence	Houston, TX, US	201-500	267 contacts →
	Indirect evidence “Reserves assessments and appraisals • Prospective resources assessments • Unconventional resources assessments • Contingent resources assessments • Reservoir simulation •…” Source: RevenueBase Database · checked Aug 31, 2026
21	Jbs&g	Indirect evidence	Perth, AU	201-500	264 contacts →
	Indirect evidence “Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…” Source: RevenueBase Database · checked Aug 31, 2026
22	Intera Incorporated	Partial evidence	Perth, AU	201-500	261 contacts →
	Partial evidence “Established in 1974, INTERA is a geosciences and engineering consulting firm focused on providing water resources and supply, environmental, mining, radioactive waste isolation…” Source: RevenueBase Database · checked Aug 31, 2026
23	Paterson & Cooke	Partial evidence	Calgary, CA	201-500	244 contacts →
	Partial evidence “Paterson & Cooke is a global mining consulting firm renowned and trusted for its expertise in a wide range of areas that include tailings and mine waste handling, long distance…” Source: RevenueBase Database · checked Aug 31, 2026
24	DF Engineering	Partial evidence	Belo Horizonte, BR	201-500	233 contacts →
	Partial evidence “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Source: RevenueBase Database · checked Aug 31, 2026
25	K-Mine	Indirect evidence	London, GB	51-200	228 contacts →
	Indirect evidence “K-MINE, where mining expertise meets technological innovation.” Source: RevenueBase Database · checked Aug 31, 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: coal geology consulting firms. 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 coal geology consulting firms.
Partial evidence: Its own public description names part of coal geology consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name coal geology consulting firms. 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 2,925 coal geology consulting firms worldwide

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Coal geology consulting firms worldwide at a glance

As of Aug 31, 2026

22.0%Verified-email coverage

7.4%Mobile-number coverage

17.5Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · Belo Horizonte

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

1,717

11-50

796

51-200

272

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 coal geology consulting firms, 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: 18 countries, largest first: the United States, Australia, Brazil, Canada, Indonesia, India, South Africa, the United Kingdom, Chile, Peru and 8 more. Country and city lists for coal geology consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “coal geology consulting firms”. 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 coal geology consulting firms), 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 coal geology consulting firms, 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, 11,230 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 between August 31, 2026 and September 14, 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.

Coal geology consulting firms by location

25 lists · largest first

Every Coal geology consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 coal geology consulting firms, 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 coal geology consulting firms are there worldwide?

RevenueBase identified 2,925 coal geology consulting firms worldwide as of August 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?

PT Bukit Makmur Mandiri Utama, headquartered in Jakarta, tops this list with the largest team on record.

Which country has the most coal geology consulting firms?

The United States leads with 545 companies, followed by Australia (386) and Brazil (314). Every coal geology consulting firms list by country and city is linked on this page.

Which city has the most coal geology consulting firms?

Belo Horizonte leads with 85 headquartered companies, followed by Perth (72) and Calgary (53).

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 11,230 verified decision-maker contacts tracked across these 2,925 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between August 31, 2026 and September 14, 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.