Company lists · Data refreshed November 2026

Top 25 Mining permitting consultants based in the United States

RevenueBase identified 345 company matches for mining permitting consultants associated with the United States as of November 2026 and tracks 4,263 professional contacts across them, including 2,076 with verified work emails. Denver is the largest hub.

This list covers company matches for mining 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
345Companies
4,263Contacts tracked
2,076Verified emails
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The 25 largest mining permitting consultants based in the United States

Ranked by team size
Top 25 of 345 company matches for mining 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 matchSan Francisco, OR, United StatesHQ recorded Nov 6, 2026501-1,000748 contacts →

Exact match

“ESA is a 100% employee-owned environmental consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact 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
4Exact matchSandy, CO, United StatesHQ recorded Nov 6, 202611-5083 contacts →

Exact match

“Mining & Environmental Services LLC provides specialized technical expertise, at a high level of excellence, to support our Clients throughout the full process cycle of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact 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
7Exact 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
8Exact matchCanonsburg, PA, United StatesHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“Since 1943, BOYD mining consultants have provided advisory services to a diverse mix of domestic and international clientele: mining companies, investors, financial institutions…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMorgantown, VA, United StatesHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Established in 2005, Dieffenbauch & Hritz (D&H) is YOUR local full service engineering firm located in OH, PA, NC, VA, and WV.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchTucson, AZ, United StatesHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“CALL & NICHOLAS (CNI) is an international mining consulting firm that specializes in geological engineering, geotechnical engineering, and hydrogeology.”

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 matchDenver, CO, United StatesHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Quandary Consultants, LLC (QC) is an environmental and regulatory consulting company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact matchMesa, AZ, United StatesHQ recorded Nov 6, 2026501-1,00043 contacts →

Exact match

“Energy Environmental Group (EEG) is a full-service environmental consulting firm specializing in all aspects of environmental permitting, inspection, and compliance monitoring.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact 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
19Exact matchBluefield, VA, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Headquartered in Bluefield, Virginia, Marshall Miller & Associates (MM & A) represents a unique assembly of engineering and science-related professionals, whose goals are to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact 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
21Exact 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
22Exact 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
23Exact 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
24Exact 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
25Exact matchGrand Junction, NM, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Founded in 2002, HRL Compliance Solutions, Inc.”

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

Showing 25 of 345 mining permitting consultants based in the United States

See the full list, filter by size, metro and specialty, and access 2,076 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mining permitting consultants based in the United States at a glance

As of Nov 6, 2026
48.7%Verified-email coverage
12.4Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · Denver
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
209
11-50
114
51-200
18
201-500
1
501-1,000
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 345 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 “mining 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 2,076 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 “mining permitting consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 345 company matches for mining 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?

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

Which city has the most mining permitting consultants?

Denver leads with 10 company records, followed by Reno (10) and Houston (8).

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 2,076 professional contacts with verified work emails tracked across these 345 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.