Company lists · Data refreshed September 2026

Top 25 Mining waste consultants based in the United States

Name: Mining waste 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 463 companies tracked

RevenueBase identified 463 mining waste consultants headquartered in the United States as of September 2026 and tracks 7,724 professional contacts across them, including 3,279 with verified work emails. Houston is the largest hub.

This list covers mining waste 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

463Companies

7,724Contacts tracked

3,279Verified emails

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The 25 largest mining waste consultants based in the United States

Ranked by team size

Top 25 of 463 mining waste 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 waste 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	Barr Engineering CO	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,088 contacts →
	Indirect 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
2	Phoenix Global	Partial evidence	Radnor, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	456 contacts →
	Partial 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 17, 2026
3	ROUX	Indirect evidence	Islandia, NY, United StatesHQ checked Sep 17, 2026	201-500	433 contacts →
	Indirect evidence “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Source: RevenueBase Database · checked Sep 17, 2026
4	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
5	Mostardi Platt	Indirect evidence	Elmhurst, IL, United StatesHQ checked Sep 17, 2026	51-200	140 contacts →
	Indirect evidence “Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…” Source: RevenueBase Database · checked Sep 17, 2026
6	Ensolum, LLC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	51-200	136 contacts →
	Indirect evidence “OUR MISSION is to combine sustainable environmental solutions with forward-thinking, cost-effective, innovative, and value-added technologies that balance our clients’ economic…” Source: RevenueBase Database · checked Sep 17, 2026
7	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
8	Skelly And Loy, Inc., A Terracon Company	Indirect evidence	Harrisburg, PA, United StatesHQ checked Sep 17, 2026	51-200	108 contacts →
	Indirect evidence “Established in 1969, Skelly and Loy is a privately owned, mid-sized corporation with 6 Mid-Atlantic offices.” Source: RevenueBase Database · checked Sep 17, 2026
9	Yorke Engineering, LLC	Partial evidence	San Juan Capistrano, CA, United StatesHQ checked Sep 17, 2026	51-200	92 contacts →
	Partial evidence “Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Source: RevenueBase Database · checked Sep 17, 2026
10	Water & AIR Research, INC	Indirect evidence	Gainesville, FL, United StatesHQ checked Sep 17, 2026	11-50	87 contacts →
	Indirect evidence “Water and Air Research, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
11	Environmental Standards Montrose Environmental Group	Indirect evidence	Valley Forge, PA, United StatesHQ checked Sep 17, 2026	51-200	83 contacts →
	Indirect evidence “Environmental Standards is now part of Onterris.” Source: RevenueBase Database · checked Sep 17, 2026
12	Environmental Waste Minimization, INC Rapid Response, INC	Partial evidence	Northampton, PA, United StatesHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial evidence “The waste disposal and remediation fields are becoming increasingly complex.” Source: RevenueBase Database · checked Sep 17, 2026
13	MES Mining	Partial evidence	Sandy, UT, United StatesHQ checked Sep 17, 2026	11-50	77 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 17, 2026
14	John T. Boyd Company	Strong evidence	Canonsburg, PA, United StatesHQ checked Sep 17, 2026	51-200	65 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 17, 2026
15	Aarc Environmental	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Source: RevenueBase Database · checked Sep 17, 2026
16	Cornerstone Environmental Group, LLC	Partial evidence	Middletown, NY, United StatesHQ checked Sep 17, 2026	51-200	61 contacts →
	Partial evidence “Cornerstone, A Tetra Tech Company, is an engineering consulting and field service firm dedicated to providing services to the solid waste industry and commercial, industrial, and…” Source: RevenueBase Database · checked Sep 17, 2026
17	LEW Environmental	Indirect evidence	Mine Hill, NJ, United StatesHQ checked Sep 17, 2026	51-200	59 contacts →
	Indirect evidence “THE ENVIRONMENTAL COMPANY LEW Environmental Services is proud to be part of the Mainline Environmental family of companies, alongside our sister organizations HSE Consulting and…” Source: RevenueBase Database · checked Sep 17, 2026
18	Whitman	Partial evidence	Somerset, NJ, United StatesHQ checked Sep 17, 2026	11-50	57 contacts →
	Partial evidence “Whitman is a full-service environmental, engineering, energy, waste management and EH & S compliance consulting firm with more than 37 years of professional experience.” Source: RevenueBase Database · checked Sep 17, 2026
19	Ecolsciences, INC	Indirect evidence	Rockaway, United StatesHQ checked Sep 17, 2026	11-50	53 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
20	ONE Environmental Group, LLC	Indirect evidence	Midlothian, VA, United StatesHQ checked Sep 17, 2026	11-50	52 contacts →
	Indirect evidence “ONE offers environmental consulting and industrial services to commercial, industrial, and government clients that are regulated by environmental state and federal regulations or…” Source: RevenueBase Database · checked Sep 17, 2026
21	Call & Nicholas	Partial evidence	Tucson, AZ, United StatesHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “CALL & NICHOLAS (CNI) is an international mining consulting firm that specializes in geological engineering, geotechnical engineering, and hydrogeology.” Source: RevenueBase Database · checked Sep 17, 2026
22	Atlantic Coast Consulting, INC	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 17, 2026	51-200	50 contacts →
	Indirect evidence “We all desire a better life.” Source: RevenueBase Database · checked Sep 17, 2026
23	Smith Gardner, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 17, 2026	11-50	46 contacts →
	Partial evidence “Smith+Gardner is an employee-owned, industry-leading solid waste consulting engineering firm committed to delivering sound, innovative solid waste solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Environmental Resources Group ERG	Indirect evidence	Novi, MI, United StatesHQ checked Sep 17, 2026	51-200	45 contacts →
	Indirect evidence “Based in Novi, Michigan, with offices throughout the U.S, we support many environmental remediation clients either through consulting or direct services.” Source: RevenueBase Database · checked Sep 17, 2026
25	Techlaw Consultants, INC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 17, 2026	201-500	44 contacts →
	Indirect evidence 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 waste 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 waste consultants.
Partial evidence: Its own public description names part of mining waste consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mining waste 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 463 mining waste consultants based in the United States

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Mining waste consultants based in the United States at a glance

As of Sep 17, 2026

42.5%Verified-email coverage

16.7Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

241

11-50

175

51-200

201-500

1,001-5,000

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 463 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 waste 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 waste 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 waste 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 waste 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, 3,279 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 waste 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 waste consultants are there based in the United States?

RevenueBase identified 463 mining waste 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?

Barr Engineering CO, headquartered in Minneapolis, tops this list with the largest team on record.

Which city has the most mining waste consultants?

Houston leads with 11 headquartered companies, followed by Denver (6) and Reno (6).

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 3,279 verified decision-maker contacts tracked across these 463 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.

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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.