Company lists · Data refreshed September 2026

Top 19 Environmental consulting agencies based in Baton Rouge, United States

Name: Environmental consulting agencies based in Baton Rouge, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 28 companies tracked

RevenueBase identified 28 company matches for environmental consulting agencies associated with Baton Rouge, United States as of September 2026 and tracks 5,370 professional contacts across them, including 1,395 with verified work emails. Across the United States, Houston is the largest hub for this category (127 companies); Baton Rouge has 28.

This list covers company matches for environmental consulting agencies associated with Baton Rouge, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

28Companies

5,370Contacts tracked

1,395Verified emails

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The 19 largest environmental consulting agencies based in Baton Rouge, United States

Ranked by team size

Top 19 of 28 company matches for environmental consulting agencies based in Baton Rouge, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	APTIM	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,639 contacts →
	Exact match “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Providence	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	n/a	2,232 contacts →
	Exact match “Providence is an employee-owned engineering and environmental consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Wink Engineering, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	201-500	122 contacts →
	Exact match “Wink Engineering, LLC is a professional consulting firm which provides engineering and design to a diversified clientele, specializing in services to the industrial sector.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	CK Associates Environmental Consultants	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	51-200	101 contacts →
	Exact match “CK Associates is an environmental consulting firm that is fully owned by its employees.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Sems, INC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	51-200	61 contacts →
	Exact match “SEMS was established in 1992 and currently has 7 offices in the southeast region of the US, with Baton Rouge, LA serving as our Corporate Headquarters.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Coastal Environments, INC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	11-50	50 contacts →
	Exact match “COASTAL ENVIRONMENTS, INC.(CEI), a Baton Rouge-based company, has provided environmental services in the areas of applied science, planning and cultural resources since 1972.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Eagle Environmental Services, INC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	11-50	42 contacts →
	Exact match “About Us Eagle provides comprehensive environmental consulting services to our clients in the industrial and governmental sectors in the Gulf Coast Region.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	QRI	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	51-200	27 contacts →
	Exact match “Established in 1986, Quaternary Resource Investigations, LLC (QRI) is an Economically Disadvantaged Woman Owned Small Business (EDWOSB) headquartered in Baton Rouge, Louisiana.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	ENCOS	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	11-50	15 contacts →
	Exact match “ENCOS, Inc.(ENCOS) is a certified Louisiana small business based in Baton Rouge and holds the Louisiana’s Hudson Initiative certification.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Ecoscience Resource Group LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	14 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Compliance Solutions Group, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	11-50	13 contacts →
	Exact match “Compliance Solutions Group, LLC (CSG), based in Baton Rouge, Louisiana, provides a full range of environmental, health, and safety (EHS) services with the highest degree of…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Wynn L. White Consulting Engineers, INC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	11-50	8 contacts →
	Exact match “We advise building owners on curing and preventing problems like mold, indoor air quality, and construction defects.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Natural Resource Professionals LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	6 contacts →
	Exact match “Natural Resource Professionals, LLC (NRP) is a specialized water resources consulting group providing engineering and regulatory expertise to municipalities, industrial interests…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	MY Environmental Consulting	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	4 contacts →
	Exact match “MYEC provides quality and cost-effective environmental consulting services to commercial and residential customers seeking to remove, remediate, and/or manage hazardous materials…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Bruin Environmental & Remediation Services	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	3 contacts →
	Exact match “Environmental and Remediation services performed by passionate and experienced professionals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Chenier Environmental Consulting, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	3 contacts →
	Exact match “Chenier Environmental Consulting, LLC specialized in applied coastal and environmental sciences.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Bayou Rouge Environmental & Planning	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “At Bayou Rouge Environmental and Planning, we're dedicated to crafting sustainable solutions that harmonize with the environment while meeting the needs of today and tomorrow.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Compliance Consultants, Inc. CCI	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Phillips Research And Consulting LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental consulting agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 19 of 28 environmental consulting agencies based in Baton Rouge, United States

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Environmental consulting agencies based in Baton Rouge, United States at a glance

As of Sep 21, 2026

26.0%Verified-email coverage

191.8Average contacts per company

1-10Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Baton Rouge, 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

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Baton Rouge, United States whose business descriptions match “environmental consulting agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,395 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Environmental consulting agencies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental consulting agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting agencies are there based in Baton Rouge, United States?

RevenueBase identified 28 company matches for environmental consulting agencies associated with Baton Rouge, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

APTIM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most environmental consulting agencies?

Houston leads the United States with 127 company records, followed by New York (89) and Seattle (72). Baton Rouge has 28.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,395 professional contacts with verified work emails tracked across these 28 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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.