Company lists · Data refreshed September 2026
Top 19 Compliance and environmental consulting firms based in Baton Rouge, United States
RevenueBase identified 26 compliance and environmental consulting firms headquartered in Baton Rouge, United States as of September 2026 and tracks 5,365 professional contacts across them, including 1,395 with verified work emails. Across the United States, Houston is the largest hub for this category (188 companies); Baton Rouge has 26.
This list covers compliance and environmental 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 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.
The 19 largest compliance and environmental consulting firms based in Baton Rouge, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,639 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,232 contacts → | ||||
Strong evidence “Providence is an employee-owned engineering and environmental consulting firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 122 contacts → | ||||
Partial evidence “Wink Engineering, LLC is a professional consulting firm which provides engineering and design to a diversified clientele, specializing in services to the industrial sector.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 101 contacts → | ||||
Strong evidence “CK Associates is an environmental consulting firm that is fully owned by its employees.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 61 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 50 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 42 contacts → | ||||
Strong evidence “About Us Eagle provides comprehensive environmental consulting services to our clients in the industrial and governmental sectors in the Gulf Coast Region.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 27 contacts → | ||||
Indirect evidence “Established in 1986, Quaternary Resource Investigations, LLC (QRI) is an Economically Disadvantaged Woman Owned Small Business (EDWOSB) headquartered in Baton Rouge, Louisiana.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Indirect evidence “ENCOS, Inc.(ENCOS) is a certified Louisiana small business based in Baton Rouge and holds the Louisiana’s Hudson Initiative certification.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 contacts → | ||||
Indirect evidence “We advise building owners on curing and preventing problems like mold, indoor air quality, and construction defects.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Partial evidence “Natural Resource Professionals, LLC (NRP) is a specialized water resources consulting group providing engineering and regulatory expertise to municipalities, industrial interests…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Strong evidence “MYEC provides quality and cost-effective environmental consulting services to commercial and residential customers seeking to remove, remediate, and/or manage hazardous materials…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Partial evidence “Environmental and Remediation services performed by passionate and experienced professionals.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Strong evidence “Chenier Environmental Consulting, LLC specialized in applied coastal and environmental sciences.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 contacts → | ||||
Strong evidence “Verdant Regulatory Consulting offers consulting services to help your business navigate the complex landscape of regulatory compliance for fertilizer and soil amendment products.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: compliance and environmental consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names compliance and environmental consulting firms.
- Partial evidence
- Its own public description names part of compliance and environmental consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name compliance and environmental consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 19 of 26 compliance and environmental consulting firms based in Baton Rouge, United States
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Compliance and environmental consulting firms based in Baton Rouge, United States at a glance
As of Sep 27, 2026Companies by employee count
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 26 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 compliance and environmental consulting 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 Baton Rouge, United States whose own description of what they do matches “compliance and environmental consulting 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 compliance and environmental consulting 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 compliance and environmental 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 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, 1,395 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 27, 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.
Compliance and environmental consulting firms by metro in the United States
- Compliance and environmental consulting firms in Houston188
- Compliance and environmental consulting firms in New York163
- Compliance and environmental consulting firms in Denver84
- Compliance and environmental consulting firms in Chicago80
- Compliance and environmental consulting firms in Washington78
- Compliance and environmental consulting firms in Los Angeles76
- Compliance and environmental consulting firms in Seattle76
- Compliance and environmental consulting firms in Austin70
- Compliance and environmental consulting firms in Atlanta62
- Compliance and environmental consulting firms in San Diego60
- Compliance and environmental consulting firms in Dallas57
- Compliance and environmental consulting firms in Portland50
- Compliance and environmental consulting firms in San Francisco50
- Compliance and environmental consulting firms in Tampa50
- Compliance and environmental consulting firms in Phoenix48
- Compliance and environmental consulting firms in Miami44
- Compliance and environmental consulting firms in Sacramento41
- Compliance and environmental consulting firms in Boston40
- Compliance and environmental consulting firms in Indianapolis39
- Compliance and environmental consulting firms in Las Vegas37
- Compliance and environmental consulting firms in Orlando34
- Compliance and environmental consulting firms in San Antonio32
- Compliance and environmental consulting firms in Jacksonville31
- Compliance and environmental consulting firms in Raleigh31
- Compliance and environmental consulting firms in Charlotte30
- Compliance and environmental consulting firms in Irvine29
- Compliance and environmental consulting firms in Oakland28
- Compliance and environmental consulting firms in Columbia26
- Compliance and environmental consulting firms in Minneapolis26
- Compliance and environmental consulting firms in Anchorage25
- Compliance and environmental consulting firms in Richmond25
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 compliance and environmental consulting 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 compliance and environmental consulting firms are there based in Baton Rouge, United States?
RevenueBase identified 26 compliance and environmental 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?
APTIM, headquartered in Baton Rouge, tops this list with the largest team on record.
Which city in the United States has the most compliance and environmental consulting firms?
Houston leads the United States with 188 headquartered companies, followed by New York (163) and Denver (84). Baton Rouge has 26.
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 1,395 verified decision-maker contacts tracked across these 26 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 27, 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.
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