Company lists · Data refreshed October 2026

Top 25 Mining regulatory consultants based in the United States

RevenueBase identified 407 company matches for mining regulatory consultants associated with the United States as of October 2026 and tracks 6,645 professional contacts across them, including 3,161 with verified work emails. Denver is the largest hub.

This list covers company matches for mining regulatory 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 October 18, 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 Oct 18, 2026 How this list was built
407Companies
6,645Contacts tracked
3,161Verified emails
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The 25 largest mining regulatory consultants based in the United States

Ranked by team size
Top 25 of 407 company matches for mining regulatory consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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 matchDenver, CO, United StatesHQ recorded Oct 18, 20261,001-5,0001,326 contacts →

Exact match

“Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchMinneapolis, MN, United StatesHQ recorded Oct 18, 20261,001-5,0001,108 contacts →

Exact match

“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchBloomington, IN, United StatesHQ recorded Oct 18, 2026201-500208 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 · Oct 18, 2026 · View company records in RevenueBase
4Exact matchRocklin, CA, United StatesHQ recorded Oct 18, 202651-200173 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchFort Collins, CO, United StatesHQ recorded Oct 18, 202651-200147 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 · Oct 18, 2026 · View company records in RevenueBase
6Exact matchSandy, UT, United StatesHQ recorded Oct 18, 202611-5078 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 · Oct 18, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Oct 18, 202651-20075 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 · Oct 18, 2026 · View company records in RevenueBase
8Exact matchCanonsburg, PA, United StatesHQ recorded Oct 18, 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 · Oct 18, 2026 · View company records in RevenueBase
9Exact matchTucson, AZ, United StatesHQ recorded Oct 18, 202651-20056 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 · Oct 18, 2026 · View company records in RevenueBase
10Exact matchThornton, CO, United StatesHQ recorded Oct 18, 202611-5056 contacts →

Exact match

“CDH Consulting specializes in helping energy companies understand and manage the numerous environmental and regulatory obligations affecting their operations.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchBoerne, TX, United StatesHQ recorded Oct 18, 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 · Oct 18, 2026 · View company records in RevenueBase
12Exact matchRockaway, United StatesHQ recorded Oct 18, 202611-5049 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 · Oct 18, 2026 · View company records in RevenueBase
13Exact matchLogan, UT, United StatesHQ recorded Oct 18, 202611-5045 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 · Oct 18, 2026 · View company records in RevenueBase
14Exact matchLittle Rock, AR, United StatesHQ recorded Oct 18, 202611-5044 contacts →

Exact match

“We are a privately-owned engineering and environmental consulting firm that provide efficient engineering and environmental compliance solutions to a variety of industries and…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Oct 18, 202611-5042 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchMesa, AZ, United StatesHQ recorded Oct 18, 2026501-1,00042 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 · Oct 18, 2026 · View company records in RevenueBase
17Exact matchBozeman, MT, United StatesHQ recorded Oct 18, 202651-20042 contacts →

Exact match

“KC Harvey is a natural resources consulting, engineering, technology and field services firm with recognized expertise in soil, water, vegetation, wildlife, and land restoration…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchPasadena, CA, United StatesHQ recorded Oct 18, 202611-5040 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchSanta Monica, CA, United StatesHQ recorded Oct 18, 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 · Oct 18, 2026 · View company records in RevenueBase
20Exact matchBirmingham, AL, United StatesHQ recorded Oct 18, 202611-5036 contacts →

Exact match

“Sauls Seismic has been in the monitoring business for over four decades.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Oct 18, 202611-5034 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 · Oct 18, 2026 · View company records in RevenueBase
22Exact matchKellogg, ID, United StatesHQ recorded Oct 18, 202651-20034 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 · Oct 18, 2026 · View company records in RevenueBase
23Exact matchHumble, TX, United StatesHQ recorded Oct 18, 202611-5033 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 · Oct 18, 2026 · View company records in RevenueBase
24Exact matchSpearfish, SD, United StatesHQ recorded Oct 18, 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 · Oct 18, 2026 · View company records in RevenueBase
25Exact matchOklahoma City, United StatesHQ recorded Oct 18, 202611-5032 contacts →

Exact match

“Environmental Consulting”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 407 mining regulatory consultants based in the United States

See the full list, filter by size, metro and specialty, and access 3,161 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mining regulatory consultants based in the United States at a glance

As of Oct 18, 2026
47.6%Verified-email coverage
16.3Average contacts per company
1-10Median size (employees)
3.4%Largest-city concentration · Denver
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
228
11-50
146
51-200
25
201-500
3
501-1,000
3
1,001-5,000
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 407 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 regulatory 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 3,161 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 October 18, 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 regulatory consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 407 company matches for mining regulatory consultants associated with the United States as of October 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?

Knight Piesold tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mining regulatory consultants?

Denver leads with 14 company records, followed by Houston (10) and Anchorage (6).

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 3,161 professional contacts with verified work emails tracked across these 407 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 October 18, 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.