Company lists · Data refreshed September 2026

Top 25 Mining and metals consulting consultants based in the United States

RevenueBase identified 490 mining and metals consulting consultants headquartered in the United States as of September 2026 and tracks 11,535 professional contacts across them, including 3,881 with verified work emails. Houston is the largest hub.

This list covers mining and metals consulting consultants headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review
490Companies
11,535Contacts tracked
3,881Verified emails
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The 25 largest mining and metals consulting consultants based in the United States

Ranked by team size
Top 25 of 490 mining and metals consulting consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to mining and metals consulting consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceDenver, CO, United StatesHQ checked Sep 30, 20261,001-5,0001,231 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
2Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 30, 20261,001-5,0001,088 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
3Indirect evidenceOmaha, NE, United StatesHQ checked Sep 30, 20261,001-5,000730 contacts →

Indirect evidence

“Molycop is a pioneer in breakthrough technologies and cutting-edge solutions that transform the way mines operate.”

Source: RevenueBase Database · checked Sep 30, 2026
4Strong evidenceRadnor, PA, United StatesHQ checked Sep 30, 20261,001-5,000456 contacts →

Strong evidence

“Phoenix Global is a leader in metals and mining services, delivering innovative solutions that maximize efficiency, sustainability, and profitability.”

Source: RevenueBase Database · checked Sep 30, 2026
5Partial evidenceNorth America, United StatesHQ checked Sep 30, 2026n/a282 contacts →

Partial evidence

“People solutions in mining, green energy and related industrial sectors - executive and technical engineering/professional recruiting and human resources services throughout the…”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceLancaster, NY, United StatesHQ checked Sep 30, 20265,001-10,000278 contacts →

Indirect evidence

“E&E is now WSP USA.”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceSt. Louis Park, MN, United StatesHQ checked Sep 30, 2026201-500264 contacts →

Indirect evidence

“Nova Group, GBC is an international, multidisciplinary advising firm providing environmental, engineering and energy services throughout North America and around the globe.”

Source: RevenueBase Database · checked Sep 30, 2026
8Strong evidenceAustin, TX, United StatesHQ checked Sep 30, 2026201-500259 contacts →

Strong evidence

“Established in 1974, INTERA is a geosciences and engineering consulting firm focused on providing water resources and supply, environmental, mining, radioactive waste isolation…”

Source: RevenueBase Database · checked Sep 30, 2026
9Partial evidenceMason, OH, United StatesHQ checked Sep 30, 2026201-500247 contacts →

Partial evidence

“BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceAmbler, PA, United StatesHQ checked Sep 30, 2026201-500219 contacts →

Indirect evidence

“On October 30, 2020, LTK Engineering Services (LTK) merged with Hatch to become Hatch LTK.”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceOakland, CA, United StatesHQ checked Sep 30, 2026201-500166 contacts →

Indirect evidence

“Terraphase offers cost-effective solutions to complex environmental and engineering challenges.”

Source: RevenueBase Database · checked Sep 30, 2026
12Partial evidenceFort Collins, CO, United StatesHQ checked Sep 30, 202651-200129 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
13Partial evidenceTyler, TX, United StatesHQ checked Sep 30, 202651-200122 contacts →

Partial evidence

“Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.”

Source: RevenueBase Database · checked Sep 30, 2026
14Partial evidenceSt. Louis, MO, United StatesHQ checked Sep 30, 202651-200118 contacts →

Partial evidence

“PENTA Engineering Corporation is an international, multidisciplinary firm providing comprehensive consulting and design/build solutions to the cement, lime, industrial minerals…”

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceHouston, TX, United StatesHQ checked Sep 30, 202651-200116 contacts →

Indirect evidence

“Edge Engineering & Science, LLC (EDGE) is a privately owned professional services firm headquartered in Houston, Texas.”

Source: RevenueBase Database · checked Sep 30, 2026
16Partial evidenceMustang, OK, United StatesHQ checked Sep 30, 2026201-50091 contacts →

Partial evidence

“Plaster & Wald Consulting Corp has provided engineering and consulting services to the oil & gas industry since 1997.Our supervisors provide technical expertise in well planning…”

Source: RevenueBase Database · checked Sep 30, 2026
17Indirect evidenceHouston, TX, United StatesHQ checked Sep 30, 2026201-50083 contacts →

Indirect evidence

“Texas United Management Corporation (TUM) is a privately owned shared services provider, founded in 1989.”

Source: RevenueBase Database · checked Sep 30, 2026
18Partial evidenceTyler, TX, United StatesHQ checked Sep 30, 202651-20080 contacts →

Partial evidence

“ETTL Engineers & Consultants Inc.”

Source: RevenueBase Database · checked Sep 30, 2026
19Indirect evidenceDublin, OH, United StatesHQ checked Sep 30, 202651-20080 contacts →

Indirect evidence

“Hull & Associates, LLC (HULL) is now Verdantas LLC.”

Source: RevenueBase Database · checked Sep 30, 2026
20Partial evidenceElko, NV, United StatesHQ checked Sep 30, 202651-20079 contacts →

Partial evidence

“Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.”

Source: RevenueBase Database · checked Sep 30, 2026
21Partial evidenceSandy, UT, United StatesHQ checked Sep 30, 202611-5077 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
22Partial evidenceButte, MT, United StatesHQ checked Sep 30, 202651-20073 contacts →

Partial evidence

“Water & Environmental Technologies (WET) is a full-service environmental and civil consulting and engineering firm located in Butte, Montana, with branch offices in Anaconda…”

Source: RevenueBase Database · checked Sep 30, 2026
23Indirect evidenceLakewood, CO, United StatesHQ checked Sep 30, 202611-5066 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
24Strong evidenceCanonsburg, PA, United StatesHQ checked Sep 30, 202651-20065 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
25Partial evidenceGarnavillo, IA, United StatesHQ checked Sep 30, 202651-20058 contacts →

Partial evidence

“Pattison Company, LLC is a Mining company located at 23656 Great River Rd, Garnavillo, IA, 52049, United States.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 25 of 490 mining and metals consulting consultants based in the United States

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Mining and metals consulting consultants based in the United States at a glance

As of Sep 30, 2026
33.6%Verified-email coverage
23.5Average contacts per company
1-10Median size (employees)
6.1%Largest-city concentration · Houston
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
276
11-50
136
51-200
54
201-500
12
501-1,000
4
1,001-5,000
5
5,001-10,000
1
10001+
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 490 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among mining and metals consulting consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “mining and metals consulting consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names mining and metals consulting consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among mining and metals consulting consultants, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,881 across the full list. 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 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Mining and metals consulting consultants by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names mining and metals consulting consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many mining and metals consulting consultants are there based in the United States?

RevenueBase identified 490 mining and metals consulting consultants headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Knight Piesold, headquartered in Denver, tops this list with the largest team on record.

Which city has the most mining and metals consulting consultants?

Houston leads with 30 headquartered companies, followed by New York (14) and Denver (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,881 verified decision-maker contacts tracked across these 490 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 Smart Search, 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.