Company lists · Data refreshed November 2026

Top 25 Mine permitting consultants based in the United States

RevenueBase identified 353 company matches for mine permitting consultants associated with the United States as of November 2026 and tracks 3,872 professional contacts across them, including 1,284 with verified work emails. Houston is the largest hub.

This list covers company matches for mine 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
353Companies
3,872Contacts tracked
1,284Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest mine permitting consultants based in the United States

Ranked by team size
Top 25 of 353 company matches for mine 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 matchMountain Lake Park, WV, United StatesHQ recorded Nov 6, 20261,001-5,000503 contacts →

Exact match

“GMS Mine Repair & Maintenance is the North American leader in underground and surface mine contracting, maintenance and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBoise, ID, United StatesHQ recorded Nov 6, 2026201-500187 contacts →

Exact match

“Small Mine Development builds and operates America’s underground mines.”

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 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
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact matchCarrier Mills, IL, United StatesHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“Miller Contracting is a family-owned mine construction company headquartered in Southern Illinois, with branch offices in Elko, Nevada, and Evansville, Indiana.”

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 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 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
16Exact matchReno, NV, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Since 1972, Kappes, Cassiday & Associates (KCA) has provided process metallurgical services to the international mining industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBloomington, UT, United StatesHQ recorded Nov 6, 2026201-50039 contacts →

Exact match

“Turner Staffing Group exists to make life better for the mining industry by solving the industry’s greatest challenge, connecting skilled professionals with the top aggregate…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchKellogg, ID, United StatesHQ recorded Nov 6, 202651-20037 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact 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
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 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
22Exact matchCo. 80155, CO, United StatesHQ recorded Nov 6, 202651-20032 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBirmingham, AL, United StatesHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“Welcome to: Cowin & Company, Inc- Mining Contractors and Engineers For three generations, Cowin & Company, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 2026201-50032 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchDenver, AZ, United StatesHQ recorded Nov 6, 202651-20031 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 · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 353 mine permitting consultants based in the United States

See the full list, filter by size, metro and specialty, and access 1,284 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Mine permitting consultants based in the United States at a glance

As of Nov 6, 2026
33.2%Verified-email coverage
11.0Average contacts per company
1-10Median size (employees)
3.4%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
224
11-50
101
51-200
21
201-500
5
1,001-5,000
1

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 353 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 “mine 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 1,284 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 “mine permitting consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 353 company matches for mine 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?

GMS Mine Repair & Maintenance tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mine permitting consultants?

Houston leads with 12 company records, followed by Denver (9) and Reno (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 1,284 professional contacts with verified work emails tracked across these 353 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.

Ready to reach these companies? Verified emails and direct dials for all 353 mine permitting consultants based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.