Company lists · Data refreshed September 2026

Top 12 Geotechnical engineering companies based in Dallas, United States

Find 26 geotechnical engineering companies based in Dallas, United States, with 411 business contacts and 145 email addresses, published September 2026. Use the directory to identify firms for site investigation, subsurface analysis, foundation design, and related project needs. Across the United States, Houston is the largest hub for this category (83 companies); Dallas has 26.

Geotechnical engineering companies investigate soil, rock, groundwater, and subsurface conditions to inform foundation design, earthwork, construction, and infrastructure projects. This list covers companies that provide geotechnical investigation, testing, analysis, design, consulting, or related subsurface engineering services. Ranked by team size, largest first. Data current as of September 14, 2026.

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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
26Companies
411Contacts tracked
145Verified emails
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The 12 largest geotechnical engineering companies based in Dallas, United States

Ranked by team size
Top 12 of 26 geotechnical engineering companies based in Dallas, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical engineering companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceDallas, TX, United StatesHQ checked Sep 14, 202651-20046 contacts →

Strong evidence

“Alliance Geotechnical Group was established in to provide professional services in the areas of: · Geotechnical Engineering · Subsurface Exploration · Construction Materials…”

Source: RevenueBase Database · checked Sep 14, 2026
2Strong evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-5034 contacts →

Strong evidence

“TexTerra Engineering is a North Texas consulting firm specializing in geotechnical engineering, construction materials testing, and inspection services.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202651-20031 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 202651-20019 contacts →

Partial evidence

“Geotechnical and Foundation Works”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-5017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-5012 contacts →

Indirect evidence

“Registered in the State of Texas in 1985, Geoscience has provided services to a wide range of industries throughout Texas, as well as other states such as Oklahoma, Tennessee…”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“Structural Engineering”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 202611-503 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“Maxima Geophysics is a leading provider of geophysical services catering to engineering, environmental, geological, and groundwater projects.”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceDallas, TX, United StatesHQ checked Sep 14, 20261-102 contacts →

Strong evidence

“Sweeney Earth Sciences is a licensed professional engineering firm specializing in geotechnical engineering using state-of-the-art geo-services to assess and mitigate risk at…”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 12 of 26 geotechnical engineering companies based in Dallas, United States

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Geotechnical engineering companies based in Dallas, United States at a glance

As of Sep 14, 2026
35.3%Verified-email coverage
15.8Average contacts per company
11-50Median size (employees)
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
8
51-200
7

Email recency for this list is measured across the whole United States list rather than for Dallas, so it is reported there. Company counts and contact totals on this page are exact for Dallas, over 26 companies.

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 geotechnical engineering companies, 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.
What qualifies
Companies headquartered in Dallas, United States whose own description of what they do matches “geotechnical engineering companies”. 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 geotechnical engineering companies), 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 geotechnical engineering companies, and records with no verified work email. Companies headquartered outside Dallas are excluded even when they keep an office there.
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, 145 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 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.

Frequently asked

What do geotechnical engineering companies do?

Geotechnical engineering companies assess soil, rock, groundwater, and subsurface conditions to support foundation design, earthwork, construction, and infrastructure projects.

How many geotechnical engineering companies are based in Dallas, United States?

The directory lists 26 geotechnical engineering companies based in Dallas, United States.

Which city in the United States has the most geotechnical engineering companies?

Houston leads the United States with 83 headquartered companies, followed by New York (38) and Austin (32). Dallas has 26.

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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.