Company lists · Data refreshed November 2026

Top 25 Federal permitting consultants based in the United States

RevenueBase identified 442 company matches for federal permitting consultants associated with the United States as of November 2026 and tracks 3,747 professional contacts across them, including 1,753 with verified work emails. Houston is the largest hub.

This list covers company matches for federal permitting consultants associated with the 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 November 6, 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 Nov 6, 2026 How this list was built
442Companies
3,747Contacts tracked
1,753Verified emails
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The 25 largest federal permitting consultants based in the United States

Ranked by team size
Top 25 of 442 company matches for federal permitting consultants based in the United States, 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 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
3Exact 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
4Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“GreenLite is the only national, AI-native provider of Permit Intelligence in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMaynard, MA, United StatesHQ recorded Nov 6, 202651-20085 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHouston, FL, United StatesHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchChicago, CA, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“The industry leader in building permit expediting and code consulting, Burnham Nationwide leverages 25 years of experience navigating the permit and code compliance process to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Based in Orlando, Florida, Bio-Tech Consulting (BTC) is a full-service environmental consulting firm with clients throughout Florida and the southeast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchJacksonville, GA, United StatesHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Environmental Services, Inc.(ESI) is a leading full service environmental consulting firm with national and international experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“EPD was created to assist clients through the complex regulatory and interdisciplinary process required to bring projects to fruition in the most thoughtful manner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact 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
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 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
15Exact 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
16Exact matchSanta Monica, CA, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact 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
18Exact matchHumble, TX, United StatesHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“The WCM Group is a team of environmental consultants, engineers and experienced professionals dedicated to helping businesses navigate the environmental regulatory landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact 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
20Exact 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
21Exact matchSpearfish, TX, United StatesHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“H2E seeks to provide high quality environmental engineering and consulting services in the most efficient manner possible.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLongview, WA, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Ecological Land Services, Inc.(ELS) provides high-quality environmental consulting and permitting, specializing in projects involving wetlands, streams, wildlife, habitat, and ESA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGoshen, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“BCA Environmental Consultants helps industrial and commercial facilities stay compliant with federal, state, and local environmental regulations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWestlake Village, CA, United StatesHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“iPermit has been serving contractors since 1976, offering convenient, prompt, and reliable service at a competitive price.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBeverly Hills, CA, United StatesHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“A Complete Permit Consulting and Expediting Firm” Serving the nation's top builders, developers, architects, contractors, retailers and property owners, the Permit Advisors offer…”

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

Showing 25 of 442 federal permitting consultants based in the United States

See the full list, filter by size, metro and specialty, and access 1,753 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Federal permitting consultants based in the United States at a glance

As of Nov 6, 2026
46.8%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
291
11-50
123
51-200
24
201-500
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 442 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 the United States whose business descriptions match “federal permitting 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. 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 1,753 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.

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

How many federal permitting consultants are there based in the United States?

RevenueBase identified 442 company matches for federal permitting consultants associated with the United States 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 city has the most federal permitting consultants?

Houston leads with 18 company records, followed by Tampa (10) and Los Angeles (9).

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 1,753 professional contacts with verified work emails tracked across these 442 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.