Company lists · Data refreshed September 2026

Top 25 Geological consultants worldwide

Name: Geological consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 33,929 companies tracked

RevenueBase identified 33,929 company matches for geological consultants worldwide as of September 2026 and tracks 530,258 professional contacts across them, including 160,235 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for geological consultants worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for geological consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

33,929Companies

530,258Contacts tracked

160,235Verified emails

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The 25 largest geological consultants worldwide

Ranked by team size

Top 25 of 33,929 company matches for geological consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Sep 21, 2026	10001+	26,949 contacts →
	Exact match “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	FUGRO	Exact match	Leidschendam, NetherlandsHQ recorded Sep 21, 2026	10001+	8,248 contacts →
	Exact match “We are the world’s leading Geo-data specialist, collecting and analysing comprehensive information about the Earth and the structures built upon it.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 21, 2026	5,001-10,000	6,113 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Keller	Exact match	London, United KingdomHQ recorded Sep 21, 2026	5,001-10,000	3,960 contacts →
	Exact match “Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Ausenco	Exact match	South Brisbane, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	3,826 contacts →
	Exact match “We transform complex challenges into sustainable solutions for the minerals & metals and industrial sectors worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Golder	Exact match	Vancouver, BC, CanadaHQ recorded Sep 21, 2026	5,001-10,000	3,167 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Macmahon	Exact match	Perth Airport, AustraliaHQ recorded Sep 21, 2026	10001+	2,592 contacts →
	Exact match “Macmahon is a diversified contractor with leading capabilities in surface and underground mining, civil construction and resources engineering.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Geosyntec Consultants	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,393 contacts →
	Exact match “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	CYD Ingeniería	Exact match	Santiago, ChileHQ recorded Sep 21, 2026	1,001-5,000	2,390 contacts →
	Exact match “Nuestro propósito es contribuir al progreso sostenible de Latinoamérica y el mundo, mejorando la calidad de vida de las comunidades y dejando huella en las personas.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	SRK Consulting	Exact match	Vancouver, CanadaHQ recorded Sep 21, 2026	1,001-5,000	2,259 contacts →
	Exact match “SRK Consulting is an independent, international group providing specialised consultancy services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Alfred H Knight	Exact match	Prescot, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	2,239 contacts →
	Exact match “Alfred H Knight is a leading provider of inspection, analytical and technical consultancy services for the metals, minerals, solid fuels and agricultural industries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Providence	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	n/a	2,232 contacts →
	Exact match “Providence is an employee-owned engineering and environmental consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	DRA Global	Exact match	Johannesburg, South AfricaHQ recorded Sep 21, 2026	1,001-5,000	2,180 contacts →
	Exact match “DRA Global Limited (DRA or the Group) is an international multi-disciplinary engineering, project delivery and operations management group, predominantly focused on the mining…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,177 contacts →
	Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Englobe	Exact match	Québec, QC, CanadaHQ recorded Sep 21, 2026	1,001-5,000	1,852 contacts →
	Exact match “Englobe is a leader in the fields of engineering, gesosciences, environmental management, asset integrity and quality management.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Exponent	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,560 contacts →
	Exact match “In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Pt. Surveyor Indonesia	Exact match	IndonesiaHQ recorded Sep 21, 2026	1,001-5,000	1,537 contacts →
	Exact match “Surveyor Indonesia was incepted on 1 August 1991.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Thriveni Earthmovers Pvt.Ltd	Exact match	IndiaHQ recorded Sep 21, 2026	5,001-10,000	1,506 contacts →
	Exact match “A proven track record spanning two decades of experience, a project portfolio that testifies our expertise and a prominent client base from the mining and manufacturing industry…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	RENCO	Exact match	Pesaro, ItalyHQ recorded Sep 21, 2026	1,001-5,000	1,494 contacts →
	Exact match “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Major Drilling	Exact match	Moncton, NB, CanadaHQ recorded Sep 21, 2026	1,001-5,000	1,447 contacts →
	Exact match “Major Drilling Group International Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	PT Saptaindra Sejati SIS	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 21, 2026	10001+	1,419 contacts →
	Exact match “PT Saptaindra Sejati (SIS) is one of Indonesia’s largest mining contractors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Partner Engineering & Science, INC	Exact match	Torrance, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,358 contacts →
	Exact match “Partner Assessment Corp.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Geosol Geologia E Sondagens S.A	Exact match	Belo Horizonte, BrazilHQ recorded Sep 21, 2026	1,001-5,000	1,317 contacts →
	Exact match “One of the leading geology companies in the world, GEOSOL excels in the undertaking of geological drilling and mineral engineering programs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Fraser Alexander	Exact match	Johannesburg, South AfricaHQ recorded Sep 21, 2026	1,001-5,000	1,232 contacts →
	Exact match “Fraser Alexander has been providing customised solutions to the mining industry since 1912.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “geological consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 33,929 geological consultants worldwide

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Geological consultants worldwide at a glance

As of Sep 21, 2026

30.2%Verified-email coverage

15.6Average contacts per company

1-10Median size (employees)

1.0%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

18,813

11-50

10,439

51-200

3,320

201-500

753

501-1,000

240

1,001-5,000

157

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for geological consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “geological consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 160,235 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Geological consultants by location

110 lists · largest first

Every Geological consultants 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geological consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geological consultants are there worldwide?

RevenueBase identified 33,929 company matches for geological consultants worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

WOOD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most geological consultants?

The United States leads with 5,388 companies, followed by Brazil (2,524) and Australia (2,438). Every geological consultants list by country and city is linked on this page.

Which city has the most geological consultants?

Houston leads with 329 company records, followed by Perth (321) and Calgary (316).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 160,235 professional contacts with verified work emails tracked across these 33,929 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.