Company lists · Data refreshed October 2026
Top 25 Mining ecological assessment firms based in the United States
RevenueBase identified 717 company matches for mining ecological assessment firms associated with the United States as of October 2026 and tracks 11,806 professional contacts across them, including 5,849 with verified work emails. Denver is the largest hub.
This list covers company matches for mining ecological assessment firms 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.
The 25 largest mining ecological assessment firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,326 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 | |||||
| 2 | 1,108 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 | |||||
| 3 | 730 contacts → | ||||
Exact match “ESA is a 100% employee-owned environmental consulting firm.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 4 | 502 contacts → | ||||
Exact match “Rincon Consultants is a multidisciplinary environmental, planning, and advisory firm.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 5 | 419 contacts → | ||||
Exact match “WEST provides environmental and statistical consulting services and contract research nationally and internationally to industry, government, and private organizations.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 6 | 274 contacts → | ||||
Exact match “People solutions in mining, green energy and related industrial sectors - executive and technical engineering/professional recruiting and human resources services throughout the…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 7 | 221 contacts → | ||||
Exact match “Since 1989, RECON has successfully completed over environmental remediation, geotechnical, and mine reclamation projects.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 8 | 208 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 | |||||
| 9 | 179 contacts → | ||||
Exact match “EnviroScience is a team of over 150 expert biologists, commercial divers, environmental engineers, and environmental scientists that provides biomonitoring, environmental…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 10 | 173 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 11 | 147 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 | |||||
| 12 | 106 contacts → | ||||
Exact match “We are environmental consultants and redevelopment experts who are proud to help build sustainable communities.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 13 | 99 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 14 | 95 contacts → | ||||
Exact match “Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 15 | 92 contacts → | ||||
Exact match “Incorporated in 1994, Edwards-Pitman Environmental, Inc.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 16 | 91 contacts → | ||||
Exact match “Established in 1969, Skelly and Loy is a privately owned, mid-sized corporation with 6 Mid-Atlantic offices.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 17 | 83 contacts → | ||||
Exact match “Founded in 1970 as a marine environmental consulting firm, CSA Ocean Sciences Inc.(CSA), now a part of APEM Group, specializes in multidisciplinary projects concerning potential…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 18 | 78 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 | |||||
| 19 | 71 contacts → | ||||
Exact match “Environmental Services, Inc.(ESI) is a leading full service environmental consulting firm with national and international experience.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 20 | 70 contacts → | ||||
Exact match “Since 1970, the highly-trained ecologists and professionals at H.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 21 | 68 contacts → | ||||
Exact match “Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 22 | 67 contacts → | ||||
Exact match “We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 23 | 65 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 | |||||
| 24 | 63 contacts → | ||||
Exact match “SummitWest is an environmental consulting company that is home to a team of dynamic, solution-oriented thinkers.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 25 | 62 contacts → | ||||
Exact match “PM Environmental is an environmental risk expert focused on business-minded solutions.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “mining ecological assessment firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 717 mining ecological assessment firms based in the United States
See the full list, filter by size, metro and specialty, and access 5,849 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Mining ecological assessment firms based in the United States at a glance
As of Oct 18, 2026Companies by employee count
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 717 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 ecological assessment firms” 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 5,849 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 ecological assessment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many mining ecological assessment firms are there based in the United States?
RevenueBase identified 717 company matches for mining ecological assessment firms 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 ecological assessment firms?
Denver leads with 13 company records, followed by Houston (13) and Fort Collins (9).
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 5,849 professional contacts with verified work emails tracked across these 717 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.
Ready to reach these companies? Verified emails and direct dials for all 717 mining ecological assessment firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Mining ecological assessment firms by geography
- Mining ecological assessment firms based in Brisbane, Australia
- Mining ecological assessment firms based in Perth, Australia
- Mining ecological assessment firms based in Belo Horizonte, Brazil
- Mining ecological assessment firms based in Sao Paulo, Brazil
- Mining ecological assessment firms based in Calgary, Canada
- Mining ecological assessment firms based in Vancouver, Canada
- Mining ecological assessment firms based in Santiago, Chile
- Mining ecological assessment firms based in Johannesburg, South Africa
- Mining ecological assessment firms based in Australia
- Mining ecological assessment firms based in Brazil
- Mining ecological assessment firms based in Canada
- Mining ecological assessment firms based in Chile
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Mining ecological assessment firms based in Brisbane, Australia
- Mining ecological assessment firms based in Perth, Australia
- Mining ecological assessment firms based in Belo Horizonte, Brazil
- Mining ecological assessment firms based in Sao Paulo, Brazil
- Mining ecological assessment firms based in Calgary, Canada
- Mining ecological assessment firms based in Vancouver, Canada
Company intelligence · public preview
Top 25 mining ecological assessment firms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 717 matching company records for mining ecological assessment firms based in the United States, with 11,806 tracked contacts and 5,849 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 18, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 mining ecological assessment firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Knight Piesoldknightpiesold.comHQ: Denver, CO, United StatesReported employees: 1,001-5,000 | Denver, CO, United States | 1,001-5,000 | Exact match | 1,326 contacts → |
“Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Barr Engineering CObarr.comHQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 1,108 contacts → |
“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Environmental Science Associatesesassoc.comHQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 730 contacts → |
“ESA is a 100% employee-owned environmental consulting firm.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Rincon Consultantsrinconconsultants.comHQ: Ventura, CA, United StatesReported employees: 501-1,000 | Ventura, CA, United States | 501-1,000 | Exact match | 502 contacts → |
“Rincon Consultants is a multidisciplinary environmental, planning, and advisory firm.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Western Ecosystems Technology, Inc. Westwest-inc.comHQ: Cheyenne, WY, United StatesReported employees: 201-500 | Cheyenne, WY, United States | 201-500 | Exact match | 419 contacts → |
“WEST provides environmental and statistical consulting services and contract research nationally and internationally to industry, government, and private organizations.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  P&c Recruiting HRpandcrecruiting.comHQ: America, United StatesReported employees: Not recorded | America, United States | Not recorded | Exact match | 274 contacts → |
“People solutions in mining, green energy and related industrial sectors - executive and technical engineering/professional recruiting and human resources services throughout the…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Remedial Construction Services, L.P. Reconreconservices.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 221 contacts → |
“Since 1989, RECON has successfully completed over environmental remediation, geotechnical, and mine reclamation projects.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Turner Mining Groupturnermining.comHQ: Bloomington, IN, United StatesReported employees: 201-500 | Bloomington, IN, United States | 201-500 | Exact match | 208 contacts → |
“Turner Mining Group is a full-service provider to the mining sector with operations throughout the United States.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Enviroscience, INCenviroscienceinc.comHQ: Stow, OH, United StatesReported employees: 51-200 | Stow, OH, United States | 51-200 | Exact match | 179 contacts → |
“EnviroScience is a team of over 150 expert biologists, commercial divers, environmental engineers, and environmental scientists that provides biomonitoring, environmental…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ecorp Consulting, INCecorpconsulting.comHQ: Rocklin, CA, United StatesReported employees: 51-200 | Rocklin, CA, United States | 51-200 | Exact match | 173 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  Ensero Solutionsensero.comHQ: Fort Collins, CO, United StatesReported employees: 51-200 | Fort Collins, CO, United States | 51-200 | Exact match | 147 contacts → |
“Ensero Solutions is an environmental consulting and remediation business with specific expertise in environmental assessments and permitting solutions, mine water management…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  AKT Peerlessaktpeerless.comHQ: Saginaw, MI, United StatesReported employees: 51-200 | Saginaw, MI, United States | 51-200 | Exact match | 106 contacts → |
“We are environmental consultants and redevelopment experts who are proud to help build sustainable communities.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  A-Tech Consulting, INCatechinc.netHQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 99 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Aspen Environmental Groupaspeneg.com HQ: Agoura Hills, CA, United StatesReported employees: 51-200 | Agoura Hills, CA, United States | 51-200 | Exact match | 95 contacts → |
“Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Edwards-Pitman Environmental, INCedwards-pitman.comHQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 92 contacts → |
“Incorporated in 1994, Edwards-Pitman Environmental, Inc.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Skelly And Loy, Inc., A Terracon Companyskellyloy.comHQ: Harrisburg, PA, United StatesReported employees: 51-200 | Harrisburg, PA, United States | 51-200 | Exact match | 91 contacts → |
“Established in 1969, Skelly and Loy is a privately owned, mid-sized corporation with 6 Mid-Atlantic offices.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | CSA Ocean Sciences INCcsaocean.com HQ: Stuart, FL, United StatesReported employees: 51-200 | Stuart, FL, United States | 51-200 | Exact match | 83 contacts → |
“Founded in 1970 as a marine environmental consulting firm, CSA Ocean Sciences Inc.(CSA), now a part of APEM Group, specializes in multidisciplinary projects concerning potential…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  MES Miningminenv.comHQ: Sandy, UT, United StatesReported employees: 11-50 | Sandy, UT, United States | 11-50 | Exact match | 78 contacts → |
“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 description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Environmental Services, Inc., A Terracon Companyenvironmentalservicesinc.comHQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 71 contacts → |
“Environmental Services, Inc.(ESI) is a leading full service environmental consulting firm with national and international experience.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  H. T. Harvey & Associatesharveyecology.comHQ: Los Gatos, CA, United StatesReported employees: 51-200 | Los Gatos, CA, United States | 51-200 | Exact match | 70 contacts → |
“Since 1970, the highly-trained ecologists and professionals at H.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Rangefront Mining Servicesrangefront.comHQ: Elko, NV, United StatesReported employees: 51-200 | Elko, NV, United States | 51-200 | Exact match | 68 contacts → |
“Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ERO Resources Corporationeroresources.comHQ: Lakewood, CO, United StatesReported employees: 11-50 | Lakewood, CO, United States | 11-50 | Exact match | 67 contacts → |
“We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  John T. Boyd Companyjtboyd.comHQ: Canonsburg, PA, United StatesReported employees: 51-200 | Canonsburg, PA, United States | 51-200 | Exact match | 65 contacts → |
“Since 1943, BOYD mining consultants have provided advisory services to a diverse mix of domestic and international clientele: mining companies, investors, financial institutions…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Summitwest Environmental, INCsummitwestenv.com HQ: Bend, OR, United StatesReported employees: 51-200 | Bend, OR, United States | 51-200 | Exact match | 63 contacts → |
“SummitWest is an environmental consulting company that is home to a team of dynamic, solution-oriented thinkers.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | PM Environmentalpmenv.com HQ: Lansing, MI, United StatesReported employees: 51-200 | Lansing, MI, United States | 51-200 | Exact match | 62 contacts → |
“PM Environmental is an environmental risk expert focused on business-minded solutions.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 717 company matches
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Mining ecological assessment firms: dataset insights
October 18, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
716 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 717 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 18, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for mining ecological assessment firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many mining ecological assessment firms did RevenueBase find based in the United States?
The saved snapshot records 717 matching company records, 11,806 tracked contacts and 5,849 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 18, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Mining ecological assessment firms by geography
- Mining ecological assessment firms based in Brisbane, Australia
- Mining ecological assessment firms based in Perth, Australia
- Mining ecological assessment firms based in Belo Horizonte, Brazil
- Mining ecological assessment firms based in Sao Paulo, Brazil
- Mining ecological assessment firms based in Calgary, Canada
- Mining ecological assessment firms based in Vancouver, Canada
- Mining ecological assessment firms based in Santiago, Chile
- Mining ecological assessment firms based in Johannesburg, South Africa
- Mining ecological assessment firms based in Australia
- Mining ecological assessment firms based in Brazil
- Mining ecological assessment firms based in Canada
- Mining ecological assessment firms based in Chile
Cite this list
RevenueBase Data Team. Top 25 mining ecological assessment firms based in the United States. Snapshot: October 18, 2026. https://revenuebase.ai/companies/mining-ecological-assessment-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Mining ecological assessment firms based in Brisbane, Australia
- Mining ecological assessment firms based in Perth, Australia
- Mining ecological assessment firms based in Belo Horizonte, Brazil
- Mining ecological assessment firms based in Sao Paulo, Brazil
- Mining ecological assessment firms based in Calgary, Canada
- Mining ecological assessment firms based in Vancouver, Canada
Company intelligence · public preview
Top 25 mining ecological assessment firms based in the United States
RevenueBase records 717 matching company records for mining ecological assessment firms based in the United States, with 11,806 tracked contacts and 5,849 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 18, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 mining ecological assessment firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Knight Piesoldknightpiesold.com HQ: Denver, CO, United StatesReported employees: 1,001-5,000 | Denver, CO, United States | 1,001-5,000 | Exact match | 1,326 contacts → |
“Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Barr Engineering CObarr.com HQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 1,108 contacts → |
“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Environmental Science Associatesesassoc.com HQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 730 contacts → |
“ESA is a 100% employee-owned environmental consulting firm.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Rincon Consultantsrinconconsultants.com HQ: Ventura, CA, United StatesReported employees: 501-1,000 | Ventura, CA, United States | 501-1,000 | Exact match | 502 contacts → |
“Rincon Consultants is a multidisciplinary environmental, planning, and advisory firm.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Western Ecosystems Technology, Inc. Westwest-inc.com HQ: Cheyenne, WY, United StatesReported employees: 201-500 | Cheyenne, WY, United States | 201-500 | Exact match | 419 contacts → |
“WEST provides environmental and statistical consulting services and contract research nationally and internationally to industry, government, and private organizations.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | P&c Recruiting HRpandcrecruiting.com HQ: America, United StatesReported employees: Not recorded | America, United States | Not recorded | Exact match | 274 contacts → |
“People solutions in mining, green energy and related industrial sectors - executive and technical engineering/professional recruiting and human resources services throughout the…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Remedial Construction Services, L.P. Reconreconservices.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 221 contacts → |
“Since 1989, RECON has successfully completed over environmental remediation, geotechnical, and mine reclamation projects.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Turner Mining Groupturnermining.com HQ: Bloomington, IN, United StatesReported employees: 201-500 | Bloomington, IN, United States | 201-500 | Exact match | 208 contacts → |
“Turner Mining Group is a full-service provider to the mining sector with operations throughout the United States.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Enviroscience, INCenviroscienceinc.com HQ: Stow, OH, United StatesReported employees: 51-200 | Stow, OH, United States | 51-200 | Exact match | 179 contacts → |
“EnviroScience is a team of over 150 expert biologists, commercial divers, environmental engineers, and environmental scientists that provides biomonitoring, environmental…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ecorp Consulting, INCecorpconsulting.com HQ: Rocklin, CA, United StatesReported employees: 51-200 | Rocklin, CA, United States | 51-200 | Exact match | 173 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Ensero Solutionsensero.com HQ: Fort Collins, CO, United StatesReported employees: 51-200 | Fort Collins, CO, United States | 51-200 | Exact match | 147 contacts → |
“Ensero Solutions is an environmental consulting and remediation business with specific expertise in environmental assessments and permitting solutions, mine water management…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | AKT Peerlessaktpeerless.com HQ: Saginaw, MI, United StatesReported employees: 51-200 | Saginaw, MI, United States | 51-200 | Exact match | 106 contacts → |
“We are environmental consultants and redevelopment experts who are proud to help build sustainable communities.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | A-Tech Consulting, INCatechinc.net HQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 99 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Aspen Environmental Groupaspeneg.com HQ: Agoura Hills, CA, United StatesReported employees: 51-200 | Agoura Hills, CA, United States | 51-200 | Exact match | 95 contacts → |
“Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Edwards-Pitman Environmental, INCedwards-pitman.com HQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 92 contacts → |
“Incorporated in 1994, Edwards-Pitman Environmental, Inc.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Skelly And Loy, Inc., A Terracon Companyskellyloy.com HQ: Harrisburg, PA, United StatesReported employees: 51-200 | Harrisburg, PA, United States | 51-200 | Exact match | 91 contacts → |
“Established in 1969, Skelly and Loy is a privately owned, mid-sized corporation with 6 Mid-Atlantic offices.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | CSA Ocean Sciences INCcsaocean.com HQ: Stuart, FL, United StatesReported employees: 51-200 | Stuart, FL, United States | 51-200 | Exact match | 83 contacts → |
“Founded in 1970 as a marine environmental consulting firm, CSA Ocean Sciences Inc.(CSA), now a part of APEM Group, specializes in multidisciplinary projects concerning potential…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | MES Miningminenv.com HQ: Sandy, UT, United StatesReported employees: 11-50 | Sandy, UT, United States | 11-50 | Exact match | 78 contacts → |
“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 description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Environmental Services, Inc., A Terracon Companyenvironmentalservicesinc.com HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 71 contacts → |
“Environmental Services, Inc.(ESI) is a leading full service environmental consulting firm with national and international experience.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | H. T. Harvey & Associatesharveyecology.com HQ: Los Gatos, CA, United StatesReported employees: 51-200 | Los Gatos, CA, United States | 51-200 | Exact match | 70 contacts → |
“Since 1970, the highly-trained ecologists and professionals at H.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Rangefront Mining Servicesrangefront.com HQ: Elko, NV, United StatesReported employees: 51-200 | Elko, NV, United States | 51-200 | Exact match | 68 contacts → |
“Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ERO Resources Corporationeroresources.com HQ: Lakewood, CO, United StatesReported employees: 11-50 | Lakewood, CO, United States | 11-50 | Exact match | 67 contacts → |
“We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | John T. Boyd Companyjtboyd.com HQ: Canonsburg, PA, United StatesReported employees: 51-200 | Canonsburg, PA, United States | 51-200 | Exact match | 65 contacts → |
“Since 1943, BOYD mining consultants have provided advisory services to a diverse mix of domestic and international clientele: mining companies, investors, financial institutions…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Summitwest Environmental, INCsummitwestenv.com HQ: Bend, OR, United StatesReported employees: 51-200 | Bend, OR, United States | 51-200 | Exact match | 63 contacts → |
“SummitWest is an environmental consulting company that is home to a team of dynamic, solution-oriented thinkers.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | PM Environmentalpmenv.com HQ: Lansing, MI, United StatesReported employees: 51-200 | Lansing, MI, United States | 51-200 | Exact match | 62 contacts → |
“PM Environmental is an environmental risk expert focused on business-minded solutions.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 717 company matches
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Mining ecological assessment firms: dataset insights
October 18, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
716 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 717 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 18, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for mining ecological assessment firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many mining ecological assessment firms did RevenueBase find based in the United States?
The saved snapshot records 717 matching company records, 11,806 tracked contacts and 5,849 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 18, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Mining ecological assessment firms by geography
- Mining ecological assessment firms based in Brisbane, Australia
- Mining ecological assessment firms based in Perth, Australia
- Mining ecological assessment firms based in Belo Horizonte, Brazil
- Mining ecological assessment firms based in Sao Paulo, Brazil
- Mining ecological assessment firms based in Calgary, Canada
- Mining ecological assessment firms based in Vancouver, Canada
- Mining ecological assessment firms based in Santiago, Chile
- Mining ecological assessment firms based in Johannesburg, South Africa
- Mining ecological assessment firms based in Australia
- Mining ecological assessment firms based in Brazil
- Mining ecological assessment firms based in Canada
- Mining ecological assessment firms based in Chile
Cite this list
RevenueBase Data Team. Top 25 mining ecological assessment firms based in the United States. Snapshot: October 18, 2026. https://revenuebase.ai/companies/mining-ecological-assessment-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Mining ecological assessment firms based in Brisbane, Australia
- Mining ecological assessment firms based in Perth, Australia
- Mining ecological assessment firms based in Belo Horizonte, Brazil
- Mining ecological assessment firms based in Sao Paulo, Brazil
- Mining ecological assessment firms based in Calgary, Canada
- Mining ecological assessment firms based in Vancouver, Canada