Company lists · Data refreshed September 2026

Top 25 Mining engineering consultants based in the United States

Name: Mining engineering consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 738 companies tracked

RevenueBase identified 738 mining engineering consultants headquartered in the United States as of September 2026 and tracks 26,873 professional contacts across them, including 8,148 with verified work emails. Denver is the largest hub.

This list covers mining engineering 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 17, 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 17, 2026 86% judged on-target in blind review

738Companies

26,873Contacts tracked

8,148Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest mining engineering consultants based in the United States

Ranked by team size

Top 25 of 738 mining engineering consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to mining engineering 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ECS Group Of Companies	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,210 contacts →
	Partial evidence “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Source: RevenueBase Database · checked Sep 17, 2026
2	Knight Piesold	Partial evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,231 contacts →
	Partial 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 17, 2026
3	Barr Engineering CO	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,088 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 17, 2026
4	Jennmar	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	602 contacts →
	Partial evidence “JENNMAR \| Delivering Worldwide Solutions Jennmar is a global company leading the way in ground control technology for the mining, tunneling, civil, and infrastructure industries.” Source: RevenueBase Database · checked Sep 17, 2026
5	GMS Mine Repair & Maintenance	Indirect evidence	Mountain Lake Park, MD, United StatesHQ checked Sep 17, 2026	1,001-5,000	462 contacts →
	Indirect evidence “GMS Mine Repair & Maintenance is the North American leader in underground and surface mine contracting, maintenance and services.” Source: RevenueBase Database · checked Sep 17, 2026
6	Minova	Strong evidence	Greenwood Village, CO, United StatesHQ checked Sep 17, 2026	1,001-5,000	449 contacts →
	Strong evidence “Minova is an industry leader of ground support and geotechnical solutions for mining, tunnelling and surface ground engineering projects.” Source: RevenueBase Database · checked Sep 17, 2026
7	P2s	Partial evidence	Long Beach, CA, United StatesHQ checked Sep 17, 2026	201-500	375 contacts →
	Partial evidence “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Source: RevenueBase Database · checked Sep 17, 2026
8	CME Associates	Partial evidence	Parlin, NJ, United StatesHQ checked Sep 17, 2026	201-500	336 contacts →
	Partial evidence “CME Associates, with eight (8) office locations throughout New Jersey, provides a complete range of Environmental, Geotechnical, Engineering, Surveying and Planning services.” Source: RevenueBase Database · checked Sep 17, 2026
9	Dynamic Engineering Consultants, PC	Strong evidence	Lake Como, NJ, United StatesHQ checked Sep 17, 2026	201-500	293 contacts →
	Strong evidence “Full Service Land Development and Consulting Dynamic Engineering Consultants, PC provides comprehensive Professional Engineering and related services to the Land Development…” Source: RevenueBase Database · checked Sep 17, 2026
10	P&c Recruiting HR	Strong evidence	North America, United StatesHQ checked Sep 17, 2026	n/a	282 contacts →
	Strong 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 17, 2026
11	Ecology And Environment, INC	Indirect evidence	Lancaster, NY, United StatesHQ checked Sep 17, 2026	5,001-10,000	278 contacts →
	Indirect evidence “E&E is now WSP USA.” Source: RevenueBase Database · checked Sep 17, 2026
12	Intera Incorporated	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	201-500	259 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 17, 2026
13	Hatch LTK	Partial evidence	Ambler, PA, United StatesHQ checked Sep 17, 2026	201-500	219 contacts →
	Partial evidence “On October 30, 2020, LTK Engineering Services (LTK) merged with Hatch to become Hatch LTK.” Source: RevenueBase Database · checked Sep 17, 2026
14	Turner Mining Group	Partial evidence	Bloomington, IN, United StatesHQ checked Sep 17, 2026	201-500	196 contacts →
	Partial evidence “Turner Mining Group is a full-service provider to the mining sector with operations throughout the United States.” Source: RevenueBase Database · checked Sep 17, 2026
15	CTL Thompson	Partial evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	201-500	189 contacts →
	Partial evidence “CTL\|Thompson (CTL\|T) has been providing innovative engineering solutions throughout Colorado since 1971.” Source: RevenueBase Database · checked Sep 17, 2026
16	Sanborn, Head & Associates, INC	Indirect evidence	Bedford, NH, United StatesHQ checked Sep 17, 2026	51-200	187 contacts →
	Indirect evidence “Building Trust.” Source: RevenueBase Database · checked Sep 17, 2026
17	RAM Enterprise, INC	Indirect evidence	Elko, NV, United StatesHQ checked Sep 17, 2026	201-500	185 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Small Mine Development, LLC	Indirect evidence	Boise, ID, United StatesHQ checked Sep 17, 2026	201-500	179 contacts →
	Indirect evidence “Small Mine Development builds and operates America’s underground mines.” Source: RevenueBase Database · checked Sep 17, 2026
19	SCI Engineering, INC	Partial evidence	St. Charles, MO, United StatesHQ checked Sep 17, 2026	51-200	174 contacts →
	Partial evidence “SCI Engineering, Inc.(SCI) is a nationwide, multi-discipline professional consulting engineering firm that provides comprehensive services across all phases of project development…” Source: RevenueBase Database · checked Sep 17, 2026
20	Terraphase Engineering INC	Partial evidence	Oakland, CA, United StatesHQ checked Sep 17, 2026	201-500	166 contacts →
	Partial evidence “Terraphase offers cost-effective solutions to complex environmental and engineering challenges.” Source: RevenueBase Database · checked Sep 17, 2026
21	Westland, A Trinity Consultants Team	Partial evidence	Tucson, AZ, United StatesHQ checked Sep 17, 2026	201-500	165 contacts →
	Partial evidence “WestLand Engineering & Environmental Services, has been a leading engineering and environmental services firm since 1997.” Source: RevenueBase Database · checked Sep 17, 2026
22	Souder, Miller & Associates	Partial evidence	Albuquerque, NM, United StatesHQ checked Sep 17, 2026	201-500	158 contacts →
	Partial evidence “Souder, Miller & Associates, Inc.(SMA) is a professional engineering consulting firm serving Colorado, eastern Utah, eastern Arizona, western Texas, and New Mexico.” Source: RevenueBase Database · checked Sep 17, 2026
23	Dubois & King, INC	Partial evidence	Randolph, VT, United StatesHQ checked Sep 17, 2026	51-200	151 contacts →
	Partial evidence “Established in 1962, DuBois & King is a multidisciplined consulting engineering firm with extensive experience providing planning, permitting, and technical design services.” Source: RevenueBase Database · checked Sep 17, 2026
24	Forsgren Associates, INC	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 17, 2026	51-200	135 contacts →
	Partial evidence “Forsgren’s 60-year history as a multi-discipline civil engineering and environmental consulting firm in the Intermountain West has been guided by our core principle, “Engineering…” Source: RevenueBase Database · checked Sep 17, 2026
25	Ensero Solutions	Indirect evidence	Fort Collins, CO, United StatesHQ checked Sep 17, 2026	51-200	129 contacts →
	Indirect 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 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: mining engineering consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names mining engineering consultants.
Partial evidence: Its own public description names part of mining engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mining engineering consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 738 mining engineering consultants based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 8,148 reachable decision-makers.

Free signup · no credit card

View the full list →

Mining engineering consultants based in the United States at a glance

As of Sep 17, 2026

30.3%Verified-email coverage

36.4Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Denver

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

357

11-50

239

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 738 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 engineering 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 engineering 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 engineering 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 engineering 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, 8,148 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 17, 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.

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 engineering 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 engineering consultants are there based in the United States?

RevenueBase identified 738 mining engineering 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?

ECS Group Of Companies, headquartered in Chantilly, tops this list with the largest team on record.

Which city has the most mining engineering consultants?

Denver leads with 19 headquartered companies, followed by Houston (18) and Reno (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 8,148 verified decision-maker contacts tracked across these 738 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 738 mining engineering consultants based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Mining engineering consultants by geography

Browse the directory

Browse: Companies home · All United States lists · All Mining engineering consultants lists · New 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 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.