Company lists · Data refreshed September 2026

Top 17 Geotechnical engineering firms based in Jacksonville, United States

RevenueBase identified 27 geotechnical engineering firms headquartered in Jacksonville, United States as of September 2026 and tracks 357 professional contacts across them, including 118 with verified work emails. Houston is the largest hub.

This list covers geotechnical engineering firms headquartered in Jacksonville, United States, 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 16, 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 16, 2026 86% judged on-target in blind review
27Companies
357Contacts tracked
118Verified emails
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The 17 largest geotechnical engineering firms based in Jacksonville, United States

Ranked by team size
Top 17 of 27 geotechnical engineering firms based in Jacksonville, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical engineering firms: 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 evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-5078 contacts →

Partial evidence

“CSI has grown from an entrepreneurial one-person minority owned firm to a full service civil engineering company, steeped in the tradition of providing high quality services…”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202651-20036 contacts →

Partial evidence

“Legacy Engineering was founded in 2005 by John E.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202651-20031 contacts →

Indirect evidence

“Ellis & Associates, Inc.(E&A) is now ECS Florida, LLC.”

Source: RevenueBase Database · checked Sep 16, 2026
4Strong evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-5023 contacts →

Strong evidence

“CSI Geo has been providing geotechnical, construction materials testing, and construction engineering inspection services since 2007.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-5014 contacts →

Indirect evidence

“Arc Surveying & Mapping, Inc provides hydrographic, topographic and land surveys globally, specializing in ports, harbors, bridges, dredging and related services.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-5013 contacts →

Partial evidence

“Russell Rowland is an independent, woman-owned Engineering Firm with decades of combined experience in Residential and Commercial structures all over the Southeast.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 20261-1010 contacts →

Partial evidence

“Almond Engineering is a civil engineering consulting firm delivering exceptional service to public and private clients in Northeast Florida and Georgia since 2006.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-507 contacts →

Partial evidence

“At Fortress Engineering Group, we offer architecture, inspection services, structural engineering, and construction management in Jacksonville, Florida and surrounding areas.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 16, 20261-107 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 20261-104 contacts →

Partial evidence

“Located in Jacksonville, Florida, the structural engineering firm of Lucas & Scott has over 20 years of design experience providing timely solutions for residential and commercial…”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceJacksonville, TX, United StatesHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“PPM stands for a Principled, Practical, and Mindful approach to solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 20261-104 contacts →

Partial evidence

“Structures International, LLC (SI) is a professional structural engineering firm located in Jacksonville, Florida.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-504 contacts →

Partial evidence

“Waitz & Moye, Inc.(WMI) is a Florida based Civil Engineering firm with over 50 years of experience in planning, design, permitting, contract administration and inspection services…”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-503 contacts →

Partial evidence

“We are a Jacksonville Civil Engineering firm with Design, Construction, and Consulting capabilities.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 202611-501 contacts →

Partial evidence

“Professional Civil Engineering Consulting services for Developers, Contractors, Municipalities and their agents since 1995”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceJacksonville, FL, United StatesHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“Goodson Bergen Associates is a one-stop civil engineering firm.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 17 of 27 geotechnical engineering firms based in Jacksonville, United States

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Geotechnical engineering firms based in Jacksonville, United States at a glance

As of Sep 16, 2026
33.1%Verified-email coverage
13.2Average contacts per company
11-50Median size (employees)
603.7%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
12
51-200
3

Email recency for this list is measured across the whole United States list rather than for Jacksonville, so it is reported there. Company counts and contact totals on this page are exact for Jacksonville, over 27 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 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.
What qualifies
Companies headquartered in Jacksonville, United States whose own description of what they do matches “geotechnical engineering 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 geotechnical engineering 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 geotechnical engineering firms, and records with no verified work email. Companies headquartered outside Jacksonville 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, 118 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 16, 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 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 geotechnical engineering 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 geotechnical engineering firms are there based in Jacksonville, United States?

RevenueBase identified 27 geotechnical engineering firms headquartered in Jacksonville, United States 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?

Civil Services, INC, headquartered in Jacksonville, tops this list with the largest team on record.

Which city has the most geotechnical engineering firms?

Houston leads with 163 headquartered companies, followed by New York (80) and Austin (68).

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 118 verified decision-maker contacts tracked across these 27 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 16, 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.