Company lists · Data refreshed October 2026

Top 25 Geological engineering consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 13, 2026 27,102 companies tracked

RevenueBase identified 27,102 company matches for geological engineering consultants worldwide as of October 2026 and tracks 423,974 professional contacts across them, including 128,429 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for geological engineering 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 October 13, 2026. Country and city lists for geological engineering 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 Oct 13, 2026 How this list was built

27,102Companies

423,974Contacts tracked

128,429Verified emails

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The 25 largest geological engineering consultants worldwide

Ranked by team size

Top 25 of 27,102 company matches for geological engineering consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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 Oct 13, 2026	5,001-10,000	6,380 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2	Keller	Exact match	London, United KingdomHQ recorded Oct 13, 2026	5,001-10,000	4,148 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 · Oct 13, 2026 · View company records in RevenueBase
3	Golder	Exact match	Vancouver, BC, CanadaHQ recorded Oct 13, 2026	5,001-10,000	3,241 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4	Multiconsult	Exact match	Oslo, NorwayHQ recorded Oct 13, 2026	1,001-5,000	2,577 contacts →
	Exact match “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	Geosyntec Consultants	Exact match	Boca Raton, FL, United StatesHQ recorded Oct 13, 2026	1,001-5,000	2,521 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 · Oct 13, 2026 · View company records in RevenueBase
6	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Oct 13, 2026	1,001-5,000	2,402 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 · Oct 13, 2026 · View company records in RevenueBase
7	SRK Consulting	Exact match	Vancouver, CanadaHQ recorded Oct 13, 2026	1,001-5,000	2,360 contacts →
	Exact match “SRK Consulting is an independent, international group providing specialised consultancy services.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	2,259 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9	Bouygues Travaux Publics	Exact match	Saint-quentin-en-yvelines Cedex, FranceHQ recorded Oct 13, 2026	10001+	1,909 contacts →
	Exact match “CONSTRUIRE DES INFRASTRUCTURES DURABLES Bouygues TP est l’un des leaders mondiaux dans les domaines de l’aménagement du territoire et de la construction d’infrastructures durables.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	SEP Engineers	Exact match	Skelmersdale, United KingdomHQ recorded Oct 13, 2026	n/a	1,845 contacts →
	Exact match “Established in 1986, SEP has been the industry’s leader for site engineering, surveying and management solutions for over thirty years, providing vital services, resources and…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,778 contacts →
	Exact match “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	UES	Exact match	Orlando, FL, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,643 contacts →
	Exact match “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13	Arab Center For Engineering Studies	Exact match	Amman, JordanHQ recorded Oct 13, 2026	1,001-5,000	1,486 contacts →
	Exact match “At ACES, we offer a wide range of specialized engineering services including site and geotechnical investigation, materials technology and testing, quality control of projects…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14	Partner Engineering & Science, INC	Exact match	Torrance, CA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,418 contacts →
	Exact match “Partner Assessment Corp.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15	Walter P Moore	Exact match	Houston, TX, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,404 contacts →
	Exact match “Welcome to Walter P Moore!” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16	Milicic SA	Exact match	Rosario, ArgentinaHQ recorded Oct 13, 2026	1,001-5,000	1,337 contacts →
	Exact match “We are an Argentine construction and services company with 50 years of experience in large-scale projects that have supported the development of key productive sectors.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17	Geosol Geologia E Sondagens S.A	Exact match	Belo Horizonte, BrazilHQ recorded Oct 13, 2026	1,001-5,000	1,332 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 · Oct 13, 2026 · View company records in RevenueBase
18	Knight Piesold	Exact match	Denver, CO, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,326 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 · Oct 13, 2026 · View company records in RevenueBase
19	Toniolo, Busnello SA	Exact match	Porto Alegre, BrazilHQ recorded Oct 13, 2026	1,001-5,000	1,325 contacts →
	Exact match “A Toniolo, Busnello S.A.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20	Soletanche Bachy	Exact match	Rueil-malmaison, FranceHQ recorded Oct 13, 2026	5,001-10,000	1,265 contacts →
	Exact match “Soletanche Bachy is a world benchmark in foundations and soil technologies, and is involved in over projects every year.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21	First Balfour	Exact match	Parañaque, PhilippinesHQ recorded Oct 13, 2026	5,001-10,000	1,169 contacts →
	Exact match “First Balfour, Inc.(First Balfour) is one of the leading engineering and construction companies in the Philippines today.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	Timmons Group	Exact match	Richmond, VA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,122 contacts →
	Exact match “Timmons Group is an engineering & technology firm specializing in civil, environmental, GIS, and surveying services to clients across the US.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	Barr Engineering CO	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,108 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 · Oct 13, 2026 · View company records in RevenueBase
24	S&me	Exact match	Raleigh, NC, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,084 contacts →
	Exact match “We are S & ME.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25	Cesel Ingenieros	Exact match	Lima, PeruHQ recorded Oct 13, 2026	1,001-5,000	936 contacts →
	Exact match “CESEL es una empresa peruana privada de consultoría en ingeniería, reconocida por su sólida trayectoria y prestigio en el desarrollo exitoso de proyectos multidisciplinarios de…” Recorded in the RevenueBase company graph · Oct 13, 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 engineering 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 27,102 geological engineering consultants worldwide

See the full list, filter by size, metro and specialty, and access 128,429 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geological engineering consultants worldwide at a glance

As of Oct 13, 2026

30.3%Verified-email coverage

15.6Average contacts per company

1-10Median size (employees)

1.0%Largest-city concentration · Sao Paulo

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

13,861

11-50

9,126

51-200

2,977

201-500

672

501-1,000

205

1,001-5,000

107

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 engineering consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “geological engineering 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 128,429 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 October 13, 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 engineering consultants by location

118 lists · largest first

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

How many geological engineering consultants are there worldwide?

RevenueBase identified 27,102 company matches for geological engineering consultants worldwide as of October 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 engineering consultants?

The United States leads with 5,078 companies, followed by Brazil (2,136) and Australia (1,389). Every geological engineering consultants list by country and city is linked on this page.

Which city has the most geological engineering consultants?

Sao Paulo leads with 282 company records, followed by Belo Horizonte (237) and Tehran (208).

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 128,429 professional contacts with verified work emails tracked across these 27,102 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 October 13, 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.