Company lists · Data refreshed September 2026
Top 25 Liquefaction assessment firms worldwide
RevenueBase identified 4,110 liquefaction assessment firms worldwide as of September 2026 and tracks 52,919 professional contacts across them, including 15,668 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers liquefaction assessment 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 September 20, 2026. Country and city lists for liquefaction assessment 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.
The 25 largest liquefaction assessment firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 480 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 468 contacts → | ||||
Indirect evidence “Founded in 1943, Geo is a market leading engineering consultancy company and contractor, specialised within the fields of geotechnical and environmental engineering (geoteknik og…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 466 contacts → | ||||
Indirect evidence “Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 460 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 Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 458 contacts → | ||||
Indirect evidence “Overview In 2012, L&T acquired a huge fleet of sophisticated foundation equipment and L&T GeoStructure - a unique legal business entity, was formed to focus, capture and build…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 449 contacts → | ||||
Indirect evidence “Ninyo & Moore was acquired by SOCOTEC US.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 441 contacts → | ||||
Indirect evidence “Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 441 contacts → | ||||
Indirect evidence “Fondé en 1993 et établi dans onze régions du Québec et en Ontario.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 423 contacts → | ||||
Indirect evidence “Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 418 contacts → | ||||
Indirect evidence “NGI – The Norwegian Geotechnical Institute – is an independent research centre in the field of geotechnical engineering and the engineering geosciences.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 418 contacts → | ||||
Indirect evidence “A Chammas acredita que a engenharia aplicada com rigor e seriedade contribui para um mundo mais seguro e sustentável; Desenvolvemos soluções eficazes, combinando expertise humana…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 400 contacts → | ||||
Indirect evidence “Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 359 contacts → | ||||
Indirect evidence “We are the world’s leading Geo-data specialist, collecting and analysing comprehensive information about the Earth and the structures built upon it.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 325 contacts → | ||||
Indirect evidence “With a marketplace presence of more than three decades, GEOCONTROLE - Geotecnia e Estruturas de Fundação, S.A.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 321 contacts → | ||||
Indirect evidence “ConeTec is a full-service geotechnical, geoenvironmental, and mining site investigation contractor.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 307 contacts → | ||||
Indirect evidence “CMW Geosciences is a specialist geotechnical consultancy delivering first-class geotech engineering services throughout Australia and New Zealand.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 299 contacts → | ||||
Indirect evidence “Hillis-Carnes Engineering Associates, Inc.(HCEA) is a Mid-Atlantic based, multi-disciplined consulting engineering firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 286 contacts → | ||||
Indirect evidence “Somos a BVP Geotecnia e Hidrotecnia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 282 contacts → | ||||
Indirect evidence “ENGEO Incorporated is an award-winning, employee-owned comprehensive provider of more than 400 geotechnical and civil engineers, geologists, GIS experts, environmental scientists…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 252 contacts → | ||||
Indirect evidence “Walm BH Engenharia is a company that operates in the areas of Geotechnical Engineering, Hydrology, Hydraulics, Hydrogeology, Engineering Geology, Rock Mechanics, and Environment &…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 245 contacts → | ||||
Indirect evidence “Há mais de duas décadas, o Grupo Geominas desenvolve soluções técnicas especializadas para engenharia, mineração, infraestrutura e meio ambiente.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 239 contacts → | ||||
Indirect evidence “Soletanche Bachy es la empresa de geotécnica más grande del mundo y está especializada en todos los aspectos de la geotecnia moderna e ingeniería de cimentaciones.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 235 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 232 contacts → | ||||
Indirect evidence “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 223 contacts → | ||||
Indirect evidence “PSM provides specialised design and investigation services for engineering in rock, soil and water.” Source: RevenueBase Database · checked Sep 20, 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: liquefaction assessment 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 liquefaction assessment firms.
- Partial evidence
- Its own public description names part of liquefaction assessment firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name liquefaction assessment 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 4,110 liquefaction assessment firms worldwide
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Liquefaction assessment firms worldwide at a glance
As of Sep 20, 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 liquefaction assessment 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
- Every country. Country and city lists for liquefaction assessment firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “liquefaction assessment 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 liquefaction assessment 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 liquefaction assessment 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, 15,668 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 20, 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.
Liquefaction assessment firms by location
21 lists · largest firstEvery Liquefaction assessment firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Liquefaction assessment firms based in the United States604
- Liquefaction assessment firms based in Brazil354
- Liquefaction assessment firms based in France220
- Liquefaction assessment firms based in Germany188
- Liquefaction assessment firms based in Italy176
- Liquefaction assessment firms based in the United Kingdom168
- Liquefaction assessment firms based in India147
- Liquefaction assessment firms based in Australia145
- Liquefaction assessment firms based in Türkiye130
- Liquefaction assessment firms based in Canada128
- Liquefaction assessment firms based in Spain93
- Liquefaction assessment firms based in Chile81
- Liquefaction assessment firms based in Colombia80
- Liquefaction assessment firms based in South Africa57
- Liquefaction assessment firms based in New Zealand50
- Liquefaction assessment firms based in Switzerland49
- Liquefaction assessment firms based in the Netherlands49
- Liquefaction assessment firms based in Belgium35
- Liquefaction assessment firms based in Saudi Arabia34
- Liquefaction assessment firms based in Portugal27
- Liquefaction assessment firms based in the United Arab Emirates25
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 liquefaction assessment 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 liquefaction assessment firms are there worldwide?
RevenueBase identified 4,110 liquefaction assessment firms 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?
Thurber Engineering LTD, headquartered in Edmonton, tops this list with the largest team on record.
Which country has the most liquefaction assessment firms?
The United States leads with 604 companies, followed by Brazil (354) and France (220). Every liquefaction assessment firms list by country and city is linked on this page.
Which city has the most liquefaction assessment firms?
Sao Paulo leads with 59 headquartered companies, followed by Belo Horizonte (48) and Tehran (31).
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 15,668 verified decision-maker contacts tracked across these 4,110 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 20, 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.