Company lists · Data refreshed September 2026

Top 25 Geological consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 15,491 companies tracked

RevenueBase identified 15,491 company matches for geological consulting firms worldwide as of September 2026 and tracks 250,193 professional contacts across them, including 80,982 with verified work emails. The United States is the largest market and Belo Horizonte the largest hub.

This list covers company matches for geological consulting firms 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 28, 2026. Country and city lists for geological consulting firms 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 28, 2026 How this list was built

15,491Companies

250,193Contacts tracked

80,982Verified emails

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The 25 largest geological consulting firms worldwide

Ranked by team size

Top 25 of 15,491 company matches for geological consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
2	Golder	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	5,001-10,000	3,167 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	CYD Ingeniería	Exact match	Santiago, ChileHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	SRK Consulting	Exact match	Vancouver, CanadaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6	DRA Global	Exact match	Johannesburg, South AfricaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8	UES	Exact match	Orlando, FL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,595 contacts →
	Exact match “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Exponent	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10	Pt. Surveyor Indonesia	Exact match	IndonesiaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
11	Thriveni Earthmovers Pvt.Ltd	Exact match	IndiaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12	Major Drilling	Exact match	Moncton, NB, CanadaHQ recorded Sep 28, 2026	1,001-5,000	1,447 contacts →
	Exact match “Major Drilling Group International Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Partner Engineering & Science, INC	Exact match	Torrance, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,358 contacts →
	Exact match “Partner Assessment Corp.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Geosol Geologia E Sondagens S.A	Exact match	Belo Horizonte, BrazilHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15	Fraser Alexander	Exact match	Johannesburg, South AfricaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
16	Knight Piesold	Exact match	Denver, CO, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,231 contacts →
	Exact match “Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Rimkus	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,184 contacts →
	Exact match “Consultants.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Bge, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,112 contacts →
	Exact match “Ranked No.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	BGP International	Exact match	涿州, ChinaHQ recorded Sep 28, 2026	5,001-10,000	1,097 contacts →
	Exact match “BGP is one of the world's competitive geophysical companies, delivering a wide range of geophysical products and services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Barr Engineering CO	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,088 contacts →
	Exact match “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Capital Limited	Exact match	Mauritius, AustriaHQ recorded Sep 28, 2026	1,001-5,000	994 contacts →
	Exact match “Capital Limited is a leading service provider for the exploration and mining industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	M. N. Dastur & Co. P LTD	Exact match	Kolkata, IndiaHQ recorded Sep 28, 2026	1,001-5,000	894 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	GZA Geoenvironmental, INC	Exact match	Norwood, MA, United StatesHQ recorded Sep 28, 2026	501-1,000	880 contacts →
	Exact match “Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Klohn Crippen Berger	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	501-1,000	871 contacts →
	Exact match “KCB is a global engineering, geosciences, and environmental consulting firm driven by Passion, Integrity and a commitment to Excellence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 28, 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 consulting firms”. 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 15,491 geological consulting firms worldwide

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Geological consulting firms worldwide at a glance

As of Sep 28, 2026

32.4%Verified-email coverage

16.2Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · Belo Horizonte

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

8,377

11-50

4,957

51-200

1,543

201-500

354

501-1,000

1,001-5,000

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 consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “geological consulting firms” 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 80,982 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 28, 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 consulting firms by location

65 lists · largest first

Every Geological 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 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 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geological consulting firms are there worldwide?

RevenueBase identified 15,491 company matches for geological consulting firms 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?

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

Which country has the most geological consulting firms?

The United States leads with 3,068 companies, followed by Brazil (1,343) and Canada (1,027). Every geological consulting firms list by country and city is linked on this page.

Which city has the most geological consulting firms?

Belo Horizonte leads with 198 company records, followed by Calgary (171) and Perth (163).

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 80,982 professional contacts with verified work emails tracked across these 15,491 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 28, 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.