Company lists · Data refreshed September 2026

Top 19 Infrastructure consulting firms based in Jacksonville, United States

RevenueBase identified 53 infrastructure consulting firms headquartered in Jacksonville, United States as of September 2026 and tracks 1,988 professional contacts across them, including 941 with verified work emails. New York is the largest hub.

This list covers infrastructure consulting 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
53Companies
1,988Contacts tracked
941Verified emails
Unlock all 53 companies Free signup · no credit card · 500 free credits

The 19 largest infrastructure consulting firms based in Jacksonville, United States

Ranked by team size
Top 19 of 53 infrastructure consulting firms based in Jacksonville, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Syska Hennessy GroupIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 2026501-1,000806

“Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.”

Source: company website · checked Sep 3, 2026
2
Civil Services, INCIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202611-5078

“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: company website · checked Sep 3, 2026
3
Osiris 9 Consulting, LLCIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202611-5044

“We are engineers, planners, scientists, public involvement specialists, and traffic operations experts.”

Source: company website · checked Sep 3, 2026
4
AE Engineering, INCPartial evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 20261,001-5,00041

“In February 2024, AE joined WSB, a design and consulting firm.”

Source: company website · checked Sep 3, 2026
5
Sawcross, INCIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202651-20028

“Since 1992, Sawcross, Inc.”

Source: company website · checked Sep 3, 2026
6
Connelly & Wicker Prime AEIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202611-5022

“Acquisition Notice: Connelly & Wicker has joined forces with PRIME AE!”

Source: company website · checked Sep 3, 2026
7
Peters And Yaffee, INCIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202611-5016

“Established in 2008 by Dow Peters, PE, and Russell Yaffee, PE, PTOE, PY has grown to over 30 employees serving both the the public and private sectors.”

Source: company website · checked Sep 3, 2026
8Jacksonville, FL, United StatesHQ checked Sep 3, 202651-20010

Consulting firm specializing in the electric utility industry, Civil, Water, Wastewater, and Landscape Architecture.”

Source: company website · checked Sep 3, 2026
9
ECC CorporationIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202651-2009

“ECC Corporation is a veteran-owned firm delivering trusted expertise across the nation.”

Source: company website · checked Sep 3, 2026
10
Apex Engineers INCIndirect evidence
Jacksonville, United StatesHQ checked Sep 3, 202611-505

“APEX is a multi-discipline engineering firm.”

Source: company website · checked Sep 3, 2026
11
PPM Consulting LLCIndirect evidence
Jacksonville, TX, United StatesHQ checked Sep 3, 20261-104

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

Source: company website · checked Sep 3, 2026
12Jacksonville, FL, United StatesHQ checked Sep 3, 20261-104

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

Source: company website · checked Sep 3, 2026
13
Waitz & Moye, INCIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202611-504

“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: company website · checked Sep 3, 2026
14
Proactive StrategiesIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 20261-104

“ProActive Strategies supports clients in many industries including Aerospace, Truck Manufacturing, Logistics, Automotive, Extrusion Manufacturing, Insurance & Underwriting…”

Source: company website · checked Sep 3, 2026
15Jacksonville, FL, United StatesHQ checked Sep 3, 202611-503

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

Source: company website · checked Sep 3, 2026
16Jacksonville, FL, United StatesHQ checked Sep 3, 202611-503
Source: company website · checked Sep 3, 2026
17
The Ohmega Group, INCStrong evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 20261-103

“Founded in 2004, The Ohmega Group is a consulting engineering firm that specializes in facility and airfield electrical systems, technology infrastructure, sustainable design and…”

Source: company website · checked Sep 3, 2026
18
Hutchison Engineering INCIndirect evidence
Jacksonville, IL, United StatesHQ checked Sep 3, 202651-2002

“Hutchison Engineering, Inc.(HEI) is known as a firm that has successfully completed some of the region’s biggest civil engineering projects and routinely partners with IDOT, the…”

Source: company website · checked Sep 3, 2026
19
Prosser Prime AEPartial evidence
Jacksonville, FL, United StatesHQ checked Sep 3, 202651-2002

“Prosser|PRIME AE is a professional planning, transportation, engineering, architecture, and landscape architectural consulting firm serving the private and public sectors.”

Source: company website · checked Sep 3, 2026

Showing 19 of 53 infrastructure consulting firms based in Jacksonville, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 941 reachable decision-makers.

Free signup · no credit card

See all 53 companies

Infrastructure consulting firms based in Jacksonville, United States at a glance

As of Sep 3, 2026
11-50Median size (employees)
New YorkLargest hub · 306 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
23
11-50
16
51-200
12
501-1,000
1
1,001-5,000
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 Jacksonville, over 53 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 infrastructure consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “infrastructure consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among infrastructure consulting 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 an evidence 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, 941 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 3, 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.

Infrastructure consulting firms by metro in the United States

Frequently asked

How many infrastructure consulting firms are there based in Jacksonville, United States?

RevenueBase identified 53 infrastructure consulting 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?

Syska Hennessy Group, headquartered in Jacksonville, tops this list with the largest team on record.

Which city has the most infrastructure consulting firms?

New York leads with 306 headquartered companies, followed by Houston (293) and Washington (158).

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 941 verified decision-maker contacts tracked across these 53 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 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 53 infrastructure consulting firms based in Jacksonville, United States. Start with a free account, no credit card.

Get the full list

Related lists

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.