Company lists · Data refreshed November 2026

Top 25 Nepa compliance consultants worldwide

RevenueBase identified 397 company matches for nepa compliance consultants worldwide as of November 2026 and tracks 3,676 professional contacts across them, including 1,472 with verified work emails. The United States is the largest market and Austin the largest hub.

This list covers company matches for nepa compliance consultants worldwide, 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 November 6, 2026. Country and city lists for nepa compliance consultants follow the table.

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 Nov 6, 2026 How this list was built
397Companies
3,676Contacts tracked
1,472Verified emails
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The 25 largest nepa compliance consultants worldwide

Ranked by team size
Top 25 of 397 company matches for nepa compliance consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRocklin, CA, United StatesHQ recorded Nov 6, 202651-200175 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCarlsbad, WA, United StatesHQ recorded Nov 6, 202651-200116 contacts →

Exact match

“ASM Affiliates (ASM) is a cultural resources management (CRM) firm with more than 40 years of experience providing NEPA, CEQA, NHPA, DAHP, and other compliance services and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCosta Mesa, CA, United StatesHQ recorded Nov 6, 202651-200109 contacts →

Exact match

“Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMechanicsville, VA, United StatesHQ recorded Nov 6, 202611-50104 contacts →

Exact match

“Consulting, Inc.(3e) is a dynamic and progressive certified small business that specializes in environmental studies, environmental engineering, environmental education, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAgoura Hills, AZ, United StatesHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAtlanta, FL, United StatesHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Incorporated in 1994, Edwards-Pitman Environmental, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“We do environmental work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLakewood, ID, United StatesHQ recorded Nov 6, 202611-5070 contacts →

Exact match

“We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Metric Environmental, LLC is a DBE/MBE environmental consulting firm headquartered in Indianapolis, Indiana with additional offices in Gary, Indiana, Cincinnati, Ohio and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRockaway, United StatesHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“EcolSciences, Inc, was founded in 1973 in response to the growing need for responsible environmental planning, as mandated by NEPA, The National Environmental Policy Act.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLogan, UT, United StatesHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“BIO-WEST is a full-service environmental planning and consulting firm offering a wide variety of services to private clients and government agencies since 1976.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPaint Lick, KY, United StatesHQ recorded Nov 6, 202611-5045 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 202611-5044 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGig Harbor, WA, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Celebrating 15 years in business, Soundview Consultants LLC is an environmental consulting firm specializing in natural resource assessments, environmental planning, land use, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Isidro, PeruHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“GEMA S.A.C.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFresno, CA, United StatesHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“SoarHere.com, Soar Environmental Consulting is, above all, defined by the strength of our people and our partnerships.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“UltraSystems is a leader in compliance with federal, state, and local environmental regulations governing project planning and development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWalnut Creek, CA, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Founded in 2011, Sequoia is a California-based, woman-owned, small, and disadvantaged business (WBE | SBE | DBE) that provides environmental consulting services to public agencies…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchThousand Oaks, CA, United StatesHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Envicom Corporation is an independent consulting firm that has served California with award-winning environmental, biological, and land planning consultation since 1972.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLaguna Beach, CA, United StatesHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“Environmental Intelligence, LLC (EI) is a full service environmental consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCampinas, BrazilHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“A preocupação com questões ambientais tem crescido vertiginosamente nas últimas décadas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMalvern, PA, United StatesHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“Bluestone Environmental Group, Inc.(Bluestone) is a small woman-owned business specializing in environmental engineering consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchFairmont, WV, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“AllStar Ecology provides sound environmental consulting and contracting on natural resource issues and efficient solutions to permitting constraints.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Hicks & Company Environmental/Archeological Consultants is a small, woman-owned environmental consulting firm that provides the full range of environmental management and planning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 397 nepa compliance consultants worldwide

See the full list, filter by size, metro and specialty, and access 1,472 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nepa compliance consultants worldwide at a glance

As of Nov 6, 2026
40.0%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · Austin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
265
11-50
105
51-200
23
501-1,000
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for nepa compliance consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “nepa compliance consultants” 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. 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 1,472 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 November 6, 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.

Nepa compliance consultants by location

1 lists · largest first

Every Nepa compliance consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “nepa compliance consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nepa compliance consultants are there worldwide?

RevenueBase identified 397 company matches for nepa compliance consultants worldwide as of November 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?

Ecorp Consulting, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most nepa compliance consultants?

The United States leads with 173 companies. Every nepa compliance consultants list by country and city is linked on this page.

Which city has the most nepa compliance consultants?

Austin leads with 6 company records, followed by San Diego (5) and Tampa (5).

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 1,472 professional contacts with verified work emails tracked across these 397 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 November 6, 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.