Company lists · Data refreshed September 2026

Top 25 Mine ventilation consulting firms based in the United States

Name: Mine ventilation consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 109 companies tracked

RevenueBase identified 109 mine ventilation consulting firms headquartered in the United States as of September 2026 and tracks 1,174 professional contacts across them, including 382 with verified work emails. Grand Junction is the largest hub.

This list covers mine ventilation consulting firms 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 28, 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 28, 2026 86% judged on-target in blind review

109Companies

1,174Contacts tracked

382Verified emails

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The 25 largest mine ventilation consulting firms based in the United States

Ranked by team size

Top 25 of 109 mine ventilation consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to mine ventilation consulting firms: 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	Penta Engineering Corporation	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 28, 2026	51-200	118 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 28, 2026
2	AMD	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 28, 2026	11-50	105 contacts →
	Strong evidence “Redefining Mine Ventilation and Safety - AMD is a leading global manufacturer of custom ventilation mine door systems and innovative solutions.” Source: RevenueBase Database · checked Sep 28, 2026
3	MES Mining	Indirect evidence	Sandy, UT, United StatesHQ checked Sep 28, 2026	11-50	77 contacts →
	Indirect 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 28, 2026
4	John T. Boyd Company	Indirect evidence	Canonsburg, PA, United StatesHQ checked Sep 28, 2026	51-200	65 contacts →
	Indirect 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 28, 2026
5	IVI INC	Indirect evidence	Greenville, WI, United StatesHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “Since 1993, IVI has used technology and experience as fuel for developing innovative air quality solutions.” Source: RevenueBase Database · checked Sep 28, 2026
6	Call & Nicholas	Partial evidence	Tucson, AZ, United StatesHQ checked Sep 28, 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 28, 2026
7	Bison Engineering, INC	Partial evidence	Helena, MT, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Partial evidence “Air Quality and Environmental Consulting Bison Engineering, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
8	STM Associates	Indirect evidence	South Jordan, UT, United StatesHQ checked Sep 28, 2026	n/a	34 contacts →
	Indirect evidence “STM Associates is an executive search firm specializing in the recruitment of mining and natural resource professionals.” Source: RevenueBase Database · checked Sep 28, 2026
9	Forte Dynamics	Partial evidence	Fort Collins, CO, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Forte Dynamics brings an extensive portfolio of completed projects with two common threads: work that touches every part of the mine life cycle, and repeat engagements with some…” Source: RevenueBase Database · checked Sep 28, 2026
10	AIR Sciences INC	Partial evidence	Golden, OR, United StatesHQ checked Sep 28, 2026	11-50	23 contacts →
	Partial evidence “Air Sciences has for more than 40 years, provided air quality consulting expertise throughout the western United States, Alaska, and Puerto Rico, as well as countries in South…” Source: RevenueBase Database · checked Sep 28, 2026
11	Bullock, Bennett & Associates	Partial evidence	Bertram, TX, United StatesHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Headquartered in Bertram, Texas, Bullock, Bennett & Associates (BBA) provides professional engineering and geoscience consulting services to public and private clientele.” Source: RevenueBase Database · checked Sep 28, 2026
12	3flow, INC	Indirect evidence	Cary, NC, United StatesHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “For almost thirty years, 3Flow has been the global leader in the systemic evaluation, testing, design and management of airflow systems for critical indoor workspaces and…” Source: RevenueBase Database · checked Sep 28, 2026
13	Continental Placer INC	Indirect evidence	Albany, NY, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “With offices in New York, Pennsylvania and New Hampshire, Continental Placer Inc.” Source: RevenueBase Database · checked Sep 28, 2026
14	IWM Consulting Group	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “IWM Consulting is an environmental consulting firm aimed at helping our clients to maximize their assets and mitigate the risks associated with site utilization and environmental…” Source: RevenueBase Database · checked Sep 28, 2026
15	Turnstone Industrial Solutions LLC	Partial evidence	Winchester, KY, United StatesHQ checked Sep 28, 2026	51-200	18 contacts →
	Partial evidence “Turnstone provides ventilation equipment, specifically to mining, tunneling, and industrial temperature control markets, that promote industry leading safety and efficiency.” Source: RevenueBase Database · checked Sep 28, 2026
16	Florida Engineering And Design, INC Fedinc	Partial evidence	Bartow, FL, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Established in Florida in 1987, Florida Engineering and Design, Inc.(FEDINC), provides consulting and design engineering services in the following areas: Mineral Resource…” Source: RevenueBase Database · checked Sep 28, 2026
17	Chemistry & Industrial Hygiene, INC	Indirect evidence	Lakewood, CO, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Established in 1987, Chemistry & Industrial Hygiene, Inc.(C & IH) helps organizations manage their risk associated with occupational health hazards by offering a combined…” Source: RevenueBase Database · checked Sep 28, 2026
18	Natural Resources Management, LLC	Partial evidence	Sylvania, OH, United StatesHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “Geological and environmental consulting company providing services to the mining industry, site-development businesses, private residential, commercial, industrial and…” Source: RevenueBase Database · checked Sep 28, 2026
19	Sunstone Environmental Solutions	Partial evidence	Reno, NV, United StatesHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “Sunstone is a client-focused, solution-driven consulting team based in Northern Nevada, built to support mining companies through every stage of project development.” Source: RevenueBase Database · checked Sep 28, 2026
20	Envirologic Technologies, INC	Partial evidence	Kalamazoo, MI, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Client-focused and science-driven, Envirologic is an environmental consulting and services firm dedicated to providing logical solutions to environmental issues.” Source: RevenueBase Database · checked Sep 28, 2026
21	Mcgehee Engineering Corp	Indirect evidence	Jasper, AL, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	Paul's FAN Company	Strong evidence	Grundy, VA, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “Paul's Fan Company is your complete, turn-key solution for mine and industrial ventilation systems.” Source: RevenueBase Database · checked Sep 28, 2026
23	Spendrup FAN CO	Indirect evidence	Grand Junction, CO, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	American Mine Services	Partial evidence	Boulder, CO, United StatesHQ checked Sep 28, 2026	51-200	10 contacts →
	Partial evidence “American Mine Services was founded in 1967 and has since been serving the mining and civil construction industries in the evaluation, design, and construction of mines…” Source: RevenueBase Database · checked Sep 28, 2026
25	Young & Bertke AIR Systems CO	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “For over 100 years Young & Bertke Air Systems has been a leader in air pollution control, dust control, fume exhaust, industrial ventilation systems, and sheet metal fabrication.” Source: RevenueBase Database · checked Sep 28, 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: mine ventilation consulting firms. 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 mine ventilation consulting firms.
Partial evidence: Its own public description names part of mine ventilation consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mine ventilation consulting firms. 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 109 mine ventilation consulting firms based in the United States

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Mine ventilation consulting firms based in the United States at a glance

As of Sep 28, 2026

32.5%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

4.6%Largest-city concentration · Grand Junction

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 109 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 mine ventilation consulting firms, 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 “mine ventilation consulting firms”. 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 mine ventilation consulting firms), 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 mine ventilation consulting firms, 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, 382 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 28, 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 mine ventilation consulting firms, 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 mine ventilation consulting firms are there based in the United States?

RevenueBase identified 109 mine ventilation consulting firms 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?

Penta Engineering Corporation, headquartered in St. Louis, tops this list with the largest team on record.

Which city has the most mine ventilation consulting firms?

Grand Junction leads with 5 headquartered companies, followed by Centennial (3) and Tucson (3).

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 382 verified decision-maker contacts tracked across these 109 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 28, 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.