Company lists · Data refreshed September 2026

Top 25 Mining permit consulting firms based in the United States

RevenueBase identified 302 company matches for mining permit consulting firms associated with the United States as of September 2026 and tracks 2,861 professional contacts across them, including 1,141 with verified work emails. Denver is the largest hub.

This list covers company matches for mining permit consulting firms 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 September 28, 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 28, 2026 How this list was built
302Companies
2,861Contacts tracked
1,141Verified emails
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The 25 largest mining permit consulting firms based in the United States

Ranked by team size
Top 25 of 302 company matches for mining permit consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchBloomington, IN, United StatesHQ recorded Sep 28, 2026201-500196 contacts →

Exact match

“Turner Mining Group is a full-service provider to the mining sector with operations throughout the United States.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchRocklin, CA, United StatesHQ recorded Sep 28, 202651-200166 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchFort Collins, CO, United StatesHQ recorded Sep 28, 202651-200129 contacts →

Exact match

“Ensero Solutions is an environmental consulting and remediation business with specific expertise in environmental assessments and permitting solutions, mine water management…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchSandy, UT, United StatesHQ recorded Sep 28, 202611-5077 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 · Sep 28, 2026 · View company records in RevenueBase
5Exact matchLakewood, CO, United StatesHQ recorded Sep 28, 202611-5066 contacts →

Exact match

“Tierra Group International, Ltd.(Tierra Group) was formed in January 2012 by Matt Fuller, CPG and Pete Kowalewski, P.E.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchCanonsburg, PA, United StatesHQ recorded Sep 28, 202651-20065 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 · Sep 28, 2026 · View company records in RevenueBase
7Exact matchBoerne, TX, United StatesHQ recorded Sep 28, 202611-5055 contacts →

Exact match

“Westward Environmental (WESTWARD) delivers multidisciplinary consulting services in engineering, environmental sciences, geology and mining, health and safety, and natural…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchMorgantown, WV, United StatesHQ recorded Sep 28, 202651-20054 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 · Sep 28, 2026 · View company records in RevenueBase
9Exact matchTucson, AZ, United StatesHQ recorded Sep 28, 202651-20052 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 · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLexington, KY, United StatesHQ recorded Sep 28, 202611-5044 contacts →

Exact match

“Summit Architects + Engineers exclusively offers Architecture, Interior Design, Civil Engineering, Surveying and Mine Permitting.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202611-5040 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchPasadena, CA, United StatesHQ recorded Sep 28, 202611-5039 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchHumble, TX, United StatesHQ recorded Sep 28, 202611-5036 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 · Sep 28, 2026 · View company records in RevenueBase
14Exact matchMidvale, UT, United StatesHQ recorded Sep 28, 202611-5033 contacts →

Exact match

“Burgex Mining Consultants is a full-service mineral exploration and consulting firm dedicated to solving the challenges of mining and adding value at every stage of the project…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchSan Antonio, TX, United StatesHQ recorded Sep 28, 2026201-50032 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchEl Segundo, CA, United StatesHQ recorded Sep 28, 202611-5031 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchKellogg, ID, United StatesHQ recorded Sep 28, 202651-20030 contacts →

Exact match

“Nasco Industrial Services & Supply (NISS) is a full-service mining supply and contract drilling and General Contracting Mining agency, built to serve the industries that make…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchCo. 80155, CO, United StatesHQ recorded Sep 28, 202651-20030 contacts →

Exact match

“Behre Dolbear is one of the oldest mineral industry advisory firms in the world continuously operating since 1911.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchFairmont, WV, United StatesHQ recorded Sep 28, 202611-5027 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 · Sep 28, 2026 · View company records in RevenueBase
20Exact matchDenver, CO, United StatesHQ recorded Sep 28, 202651-20025 contacts →

Exact match

“Knight Piésold USA was established in 1985 in Denver, CO and has become a leading consultancy providing engineering and environmental services in the mining and hydropower…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchFort Collins, CO, United StatesHQ recorded Sep 28, 202611-5025 contacts →

Exact match

“Forte Dynamics brings an extensive portfolio of completed projects with two common threads: work that touches every part of the mine life cycle, and repeat engagements with some…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchPowhatan Point, OH, United StatesHQ recorded Sep 28, 202651-20025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchBrooksville, FL, United StatesHQ recorded Sep 28, 202611-5023 contacts →

Exact match

“Creative Environmental Solutions, Inc.(CES) is a Florida-based geological, environmental, and engineering consulting firm specializing in Environmental Consulting Services…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchAnchorage, AK, United StatesHQ recorded Sep 28, 202611-5023 contacts →

Exact match

“Alaska Earth Sciences (AES) is an Anchorage-based geologic consulting expertise to promote, manage, and support mineral exploration and development.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchAgoura Hills, CA, United StatesHQ recorded Sep 28, 202611-5023 contacts →

Exact match

“When prospective real estate purchasers need answers before closing escrow, they turn to Schmitz & Associates.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 302 mining permit consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 1,141 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mining permit consulting firms based in the United States at a glance

As of Sep 28, 2026
39.9%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
3.3%Largest-city concentration · Denver
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
179
11-50
100
51-200
17
201-500
6

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 302 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 permit consulting firms” 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 1,141 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 28, 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 permit consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mining permit consulting firms are there based in the United States?

RevenueBase identified 302 company matches for mining permit consulting firms associated with the 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?

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

Which city has the most mining permit consulting firms?

Denver leads with 10 company records, followed by Houston (9) and Reno (7).

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 1,141 professional contacts with verified work emails tracked across these 302 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 302 mining permit consulting firms based in the United States. Start with a free account, no credit card.

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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.