Company lists · Data refreshed September 2026

Top 14 Geotechnical engineering companies based in Tampa, United States

Find 28 geotechnical engineering companies based in Tampa, United States, with 981 business contacts and 342 email addresses, published September 2026. Houston is the single most-represented city among the companies on this list. Use the directory to identify firms for site investigation, subsurface analysis, foundation design, and related project needs.

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 6, 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 6, 2026 86% judged on-target in blind review
28Companies
981Contacts tracked
342Verified emails
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The 14 largest geotechnical engineering companies based in Tampa, United States

Ranked by team size
Top 14 of 28 geotechnical engineering companies based in Tampa, United States, ranked by team size, largest first. Data refreshed Sep 6, 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
1Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 2026201-500265 contacts →

“KCA is a multidisciplinary engineering firm with offices throughout the Southeastern United States.”

Source: company website · checked Sep 6, 2026
2Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 202651-20088 contacts →

“Sdii Global Corporation (SDII) is an industry-leading forensic engineering and earth sciences firm, recognized by its clients as the foremost source of experts to have as their…”

Source: company website · checked Sep 6, 2026
3Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 202651-20074 contacts →

“Gahagan & Bryant Associates, Inc.(GBA) is a unique engineering firm that specializes in providing consulting and engineering services for a variety of projects, including port…”

Source: company website · checked Sep 6, 2026
4Indirect evidenceTampa, FL, United StatesHQ checked Sep 6, 202651-20059 contacts →

“Helicon is Florida’s most trusted and customer-loved foundation repair company, headquartered in Tampa Bay with satellite offices across the state.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceTampa, FL, United StatesHQ checked Sep 6, 202611-5039 contacts →
Source: company website · checked Sep 6, 2026
6Indirect evidenceTampa, FL, United StatesHQ checked Sep 6, 202611-5021 contacts →

“For more than three decades Landmark has successfully completed numerous residential and commercial projects in Hillsborough, Polk, Pinellas, Pasco and Manatee counties.”

Source: company website · checked Sep 6, 2026
7Strong evidenceTampa, FL, United StatesHQ checked Sep 6, 202611-5014 contacts →

“BTL ENGINEERING SERVICES is a Full Service Geotechnical Engineering Firm based in Tampa, Florida, servicing the Greater Tampa Bay Area.”

Source: company website · checked Sep 6, 2026
8Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 202611-508 contacts →

“Founded in 2002, TMG Manufacturing strives to be the supplier you can count on for quality geotechnical products, drill rigs, tooling and equipment.”

Source: company website · checked Sep 6, 2026
9Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 20261-106 contacts →

“Professional Engineering Consulting and Services.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceTampa, FL, United StatesHQ checked Sep 6, 20261-105 contacts →
Source: company website · checked Sep 6, 2026
11Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 20261-104 contacts →

“Geotek Design-Build is a specialty geotechnical Design-Build contractor servicing Florida and the Southeast Region.”

Source: company website · checked Sep 6, 2026
12Strong evidenceTampa, FL, United StatesHQ checked Sep 6, 20261-104 contacts →

“Pinnacle Engineering and Consulting, LLC is a Florida-based consulting firm providing expertise in forensic, structural, and geotechnical engineering, as well as environmental and…”

Source: company website · checked Sep 6, 2026
13Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 20261-102 contacts →

“Beacon Civil is a Tampa Bay area civil engineering firm.”

Source: company website · checked Sep 6, 2026
14Partial evidenceTampa, FL, United StatesHQ checked Sep 6, 202611-501 contacts →

“EBI Surveying is a civil engineering company based out of 8415 Sunstate St, Tampa, Florida, United States.”

Source: company website · checked Sep 6, 2026

Showing 14 of 28 geotechnical engineering companies based in Tampa, United States

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

As of Sep 6, 2026
34.9%Verified-email coverage
35.0Average contacts per company
11-50Median size (employees)
310.7%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
9
51-200
4
201-500
1
10001+
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Tampa, over 28 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 Tampa, 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 Tampa 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, 342 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 6, 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 Tampa, United States?

The directory lists 28 geotechnical engineering companies based in Tampa, United States.

Where are most geotechnical engineering companies located?

Houston is the single most-represented city among the companies on this list.

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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.