Company lists · Data refreshed September 2026

Top 16 Infrastructure consulting firms based in Baton Rouge, United States

RevenueBase identified 28 infrastructure consulting firms headquartered in Baton Rouge, United States as of September 2026 and tracks 2,490 professional contacts across them, including 770 with verified work emails. New York is the largest hub.

This list covers infrastructure consulting firms headquartered in Baton Rouge, 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
28Companies
2,490Contacts tracked
770Verified emails
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The 16 largest infrastructure consulting firms based in Baton Rouge, United States

Ranked by team size
Top 16 of 28 infrastructure consulting firms based in Baton Rouge, 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
Stantec ConsultingIndirect evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202610001+302
Source: company website · checked Sep 3, 2026
2
SJB GroupIndirect evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5062

“Founded in 1953, SJB Group has evolved into one of the most respected and diversified firms in its class separating itself from competitors through its personnel, breadth of…”

Source: company website · checked Sep 3, 2026
3
Gotech, INCPartial evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202651-20030

“GOTECH, Inc, a professional engineering and consulting firm, was established in 1981 by Rhaoul A.”

Source: company website · checked Sep 3, 2026
4
Bonton AssociatesPartial evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5025

“Bonton Associates engineers long-term solutions to public infrastructure challenges.”

Source: company website · checked Sep 3, 2026
5Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5023

“PEC is a multi-disciplined consulting firm with engineers and other specialists experienced in the following areas, civil, sanitary, transportation, mechanical, recreational…”

Source: company website · checked Sep 3, 2026
6Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5022

“Sigma Consulting Group, Inc.”

Source: company website · checked Sep 3, 2026
7
Timbalier Resources, LLCPartial evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5014

“At Timbalier Resources, we are your strategic partner in large-scale infrastructure projects.”

Source: company website · checked Sep 3, 2026
8
Southeast Engineers, LLCIndirect evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5012

“With a combined 70 plus years of experience, Southeast Engineers has become a market leader in a wide range of engineering services.”

Source: company website · checked Sep 3, 2026
9
Owen & White INCIndirect evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5011

“Owen and White, Inc.”

Source: company website · checked Sep 3, 2026
10Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-5010

“VECTURA Consulting Services, LLC was founded by two veteran Louisiana transportation engineers who have unique expertise in providing transportation engineering services from the…”

Source: company website · checked Sep 3, 2026
11Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-507

“Civil Solutions Consulting Group is a civil engineering and surveying firm that assists governmental agencies, developers, and architecture firms with the planning, design, and…”

Source: company website · checked Sep 3, 2026
12
Aptim Services, LLCIndirect evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 202611-502

“APTIM SERVICES, LLC is a company based out of 4171 ESSEN LN, Baton Rouge, Louisiana, United States.”

Source: company website · checked Sep 3, 2026
13Baton Rouge, LA, United StatesHQ checked Sep 3, 20261-102

“Founded in 1986, Compliance Consultants, Inc,(CCI) is a civil/environmental engineering and consulting firm that provides specialized services to a broad range of clients.”

Source: company website · checked Sep 3, 2026
14
Resource Consulting, LLCPartial evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 20261-101

“Resource Consulting is a full service civil engineering firm that combines Surveys, Environmental, Site Investigation Planning, Site Design, Approvals and Construction…”

Source: company website · checked Sep 3, 2026
15
Svaapta GroupPartial evidence
Baton Rouge, LA, United StatesHQ checked Sep 3, 20261-101

“Svaapta Group was founded with the objective of providing transportation-oriented consulting engineering services to both the public and private sectors.”

Source: company website · checked Sep 3, 2026
16Baton Rouge, LA, United StatesHQ checked Sep 3, 20261-101

“ICS specializes in project management consulting.”

Source: company website · checked Sep 3, 2026

Showing 16 of 28 infrastructure consulting firms based in Baton Rouge, United States

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Infrastructure consulting firms based in Baton Rouge, 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
9
11-50
15
51-200
1
501-1,000
1
1,001-5,000
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 Baton Rouge, 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 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 Baton Rouge, 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 Baton Rouge 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, 770 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 Baton Rouge, United States?

RevenueBase identified 28 infrastructure consulting firms headquartered in Baton Rouge, 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?

Stantec Consulting, headquartered in Baton Rouge, 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 770 verified decision-maker contacts tracked across these 28 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.

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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 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.