Company lists · Data refreshed November 2026
Top 25 Mining assay services based in the United States
RevenueBase identified 179 company matches for mining assay services associated with the United States as of November 2026 and tracks 4,363 professional contacts across them, including 1,536 with verified work emails. Houston is the largest hub.
This list covers company matches for mining assay services 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 November 6, 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 assay services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 766 contacts → | ||||
Exact match “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 326 contacts → | ||||
Exact match “Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 243 contacts → | ||||
Exact match “Since 1987, Alpha Analytical, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 211 contacts → | ||||
Exact match “RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 200 contacts → | ||||
Exact match “Driving smart decisions has been our passion since 1975, and we continue to do this by recruiting talented individuals in the fields of Chemistry, Biochemistry, Biology…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 195 contacts → | ||||
Exact match “Since 1981, GEL Laboratories has been a leading provider of comprehensive and reliable analytical services to the environmental industry including chemical, radiochemical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 163 contacts → | ||||
Exact match “RohmTek is an analytical laboratory support company providing instrument rental, instrument optimization, and analytical laboratory services to the energy industry and beyond.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 124 contacts → | ||||
Exact match “Founded in 1952, Energy Laboratories, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 94 contacts → | ||||
Exact match “Bridging the gap between geology and engineering.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 78 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 70 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 63 contacts → | ||||
Exact match “STAT Analysis Corporation (STAT) is a full-service analytical support laboratory that serves the environmental and industrial hygiene industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 60 contacts → | ||||
Exact match “Weck Laboratories Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 58 contacts → | ||||
Exact match “Since 1980, ACZ Laboratories, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 50 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 50 contacts → | ||||
Exact match “Galbraith Laboratories, Inc, a Bureau Veritas Company, is a contract analytical testing laboratory with over 64 years of experience in the global marketplace.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 47 contacts → | ||||
Exact match “Since 1970, Michelson Laboratories has provided efficient testing and analyses to an extensive spectrum of customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 44 contacts → | ||||
Exact match “For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 42 contacts → | ||||
Exact match “GeoMark Research is the preeminent geochemical laboratory, providing petroleum fluid analyses to the petroleum industry and offering a full range of oil, gas, and source rock…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 39 contacts → | ||||
Exact match “Since 1972, Kappes, Cassiday & Associates (KCA) has provided process metallurgical services to the international mining industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 38 contacts → | ||||
Exact match “Industrial Laboratories (IL) is an independent third party analytical laboratory that specializes in Food and Drug analysis.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 38 contacts → | ||||
Exact match “RMB Environmental Laboratories (RMB) is an independent, leading provider of comprehensive environmental testing solutions, founded in 1995.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 37 contacts → | ||||
Exact match “Oilfield Labs of America is an analytical laboratory network with a business goal and mission of providing the highest quality analytical testing in the fastest time possible to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 37 contacts → | ||||
Exact match “Brooks Applied Labs was formed in 2015 through the merger of the two industry-leaders in the field of specialty trace metals analysis and metals speciation: Brooks Rand Labs &…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 36 contacts → | ||||
Exact match “Fibertec Environmental Services is a full service environmental analytical laboratory, specializing in environmental analysis, subsurface investigations, and natural gas analysis.” Recorded in the RevenueBase company graph · Nov 6, 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 assay services”. 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 179 mining assay services based in the United States
See the full list, filter by size, metro and specialty, and access 1,536 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Mining assay services based in the United States at a glance
As of Nov 6, 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 179 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 assay services” 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 1,536 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 November 6, 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 assay services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many mining assay services are there based in the United States?
RevenueBase identified 179 company matches for mining assay services associated with the United States as of November 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?
Emsl Analytical, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most mining assay services?
Houston leads with 7 company records, followed by Sparks (5) and Austin (4).
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 1,536 professional contacts with verified work emails tracked across these 179 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 179 mining assay services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Mining assay services by geography
- Mining assay services based in Australia
- Mining assay services based in Brazil
- Mining assay services based in Canada
- Mining assay services based in Chile
- Mining assay services based in Germany
- Mining assay services based in India
- Mining assay services based in South Africa
- Mining assay services based in the United Kingdom
Browse the directory
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
Company intelligence · public preview
Top 25 mining assay services 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 179 matching company records for mining assay services based in the United States, with 4,363 tracked contacts and 1,536 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: November 6, 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 assay services 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 |  Emsl Analytical, INCemsl.comHQ: Cinnaminson, NJ, United StatesReported employees: 501-1,000 | Cinnaminson, NJ, United States | 501-1,000 | Exact match | 766 contacts → |
“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Pace Analyticalpacelabs.comHQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 326 contacts → |
“Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Alpha Analyticalalphalab.comHQ: Westborough, NY, United StatesReported employees: 501-1,000 | Westborough, NY, United States | 501-1,000 | Exact match | 243 contacts → |
“Since 1987, Alpha Analytical, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  RJ LEE Grouprjleegroup.comHQ: Pittsburgh, PA, United StatesReported employees: 201-500 | Pittsburgh, PA, United States | 201-500 | Exact match | 211 contacts → |
“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Midwest Laboratoriesmidwestlabs.comHQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 200 contacts → |
“Driving smart decisions has been our passion since 1975, and we continue to do this by recruiting talented individuals in the fields of Chemistry, Biochemistry, Biology…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  GEL Laboratories, LLCgel.comHQ: Charleston, SC, United StatesReported employees: 201-500 | Charleston, SC, United States | 201-500 | Exact match | 195 contacts → |
“Since 1981, GEL Laboratories has been a leading provider of comprehensive and reliable analytical services to the environmental industry including chemical, radiochemical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Rohmtekrohmtek.comHQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 163 contacts → |
“RohmTek is an analytical laboratory support company providing instrument rental, instrument optimization, and analytical laboratory services to the energy industry and beyond.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Energy Laboratories, INCenergylab.comHQ: Billings, WY, United StatesReported employees: 201-500 | Billings, WY, United States | 201-500 | Exact match | 124 contacts → |
“Founded in 1952, Energy Laboratories, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Premier Corexpofg.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 94 contacts → |
“Bridging the gap between geology and engineering.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Phoenix Environmental Laboratories, INCphoenixlabs.comHQ: Manchester, CT, United StatesReported employees: 51-200 | Manchester, CT, United States | 51-200 | Exact match | 78 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  Rangefront Mining Servicesrangefront.comHQ: Elko, NV, United StatesReported employees: 51-200 | Elko, NV, United States | 51-200 | Exact match | 70 contacts → |
“Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Stat Analysis Corporationthesterlinglab.comHQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 63 contacts → |
“STAT Analysis Corporation (STAT) is a full-service analytical support laboratory that serves the environmental and industrial hygiene industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Weck Laboratories, INCwecklabs.comHQ: City Of Industry, CA, United StatesReported employees: 51-200 | City Of Industry, CA, United States | 51-200 | Exact match | 60 contacts → |
“Weck Laboratories Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  ACZ Laboratoriesacz.comHQ: Steamboat Springs, CO, United StatesReported employees: 51-200 | Steamboat Springs, CO, United States | 51-200 | Exact match | 58 contacts → |
“Since 1980, ACZ Laboratories, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Field GEO Services, INCfieldgeoservices.comHQ: Grand Junction, CO, United StatesReported employees: 51-200 | Grand Junction, CO, United States | 51-200 | Exact match | 50 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | HQ: Knoxville, TN, United StatesReported employees: 51-200 | Knoxville, TN, United States | 51-200 | Exact match | 50 contacts → |
“Galbraith Laboratories, Inc, a Bureau Veritas Company, is a contract analytical testing laboratory with over 64 years of experience in the global marketplace.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Michelson Laboratories, INCmichelsonlab.comHQ: Commerce, CA, United StatesReported employees: 51-200 | Commerce, CA, United States | 51-200 | Exact match | 47 contacts → |
“Since 1970, Michelson Laboratories has provided efficient testing and analyses to an extensive spectrum of customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  RTI Laboratories, INCrtilab.comHQ: Livonia, MI, United StatesReported employees: 51-200 | Livonia, MI, United States | 51-200 | Exact match | 44 contacts → |
“For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Geomark Researchgeomarkresearch.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 42 contacts → |
“GeoMark Research is the preeminent geochemical laboratory, providing petroleum fluid analyses to the petroleum industry and offering a full range of oil, gas, and source rock…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Kappes, Cassiday & Associateskcareno.comHQ: Reno, NV, United StatesReported employees: 51-200 | Reno, NV, United States | 51-200 | Exact match | 39 contacts → |
“Since 1972, Kappes, Cassiday & Associates (KCA) has provided process metallurgical services to the international mining industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Industrial Laboratoriesindustriallabs.netHQ: Denver, CO, United StatesReported employees: 11-50 | Denver, CO, United States | 11-50 | Exact match | 38 contacts → |
“Industrial Laboratories (IL) is an independent third party analytical laboratory that specializes in Food and Drug analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  RMB Environmental Laboratories INCrmbel.comHQ: Detroit Lakes, MN, United StatesReported employees: 51-200 | Detroit Lakes, MN, United States | 51-200 | Exact match | 38 contacts → |
“RMB Environmental Laboratories (RMB) is an independent, leading provider of comprehensive environmental testing solutions, founded in 1995.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  OLAola-us.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 37 contacts → |
“Oilfield Labs of America is an analytical laboratory network with a business goal and mission of providing the highest quality analytical testing in the fastest time possible to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Brooks Applied Labs, LLCbrooksapplied.comHQ: Bothell, WA, United StatesReported employees: 51-200 | Bothell, WA, United States | 51-200 | Exact match | 37 contacts → |
“Brooks Applied Labs was formed in 2015 through the merger of the two industry-leaders in the field of specialty trace metals analysis and metals speciation: Brooks Rand Labs &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Fibertec Environmental Servicesfibertec.usHQ: Holt, MI, United StatesReported employees: 51-200 | Holt, MI, United States | 51-200 | Exact match | 36 contacts → |
“Fibertec Environmental Services is a full service environmental analytical laboratory, specializing in environmental analysis, subsurface investigations, and natural gas analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 179 company matches
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Mining assay services: dataset insights
November 6, 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
179 records in the displayed employee bands.
0 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 179 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: November 6, 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 assay services?
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 assay services did RevenueBase find based in the United States?
The saved snapshot records 179 matching company records, 4,363 tracked contacts and 1,536 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: November 6, 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 assay services by geography
- Mining assay services based in Australia
- Mining assay services based in Brazil
- Mining assay services based in Canada
- Mining assay services based in Chile
- Mining assay services based in Germany
- Mining assay services based in India
- Mining assay services based in South Africa
- Mining assay services based in the United Kingdom
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 mining assay services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/mining-assay-services/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
Company intelligence · public preview
Top 25 mining assay services based in the United States
RevenueBase records 179 matching company records for mining assay services based in the United States, with 4,363 tracked contacts and 1,536 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: November 6, 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 assay services 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 | Emsl Analytical, INCemsl.com HQ: Cinnaminson, NJ, United StatesReported employees: 501-1,000 | Cinnaminson, NJ, United States | 501-1,000 | Exact match | 766 contacts → |
“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Pace Analyticalpacelabs.com HQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 326 contacts → |
“Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Alpha Analyticalalphalab.com HQ: Westborough, NY, United StatesReported employees: 501-1,000 | Westborough, NY, United States | 501-1,000 | Exact match | 243 contacts → |
“Since 1987, Alpha Analytical, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | RJ LEE Grouprjleegroup.com HQ: Pittsburgh, PA, United StatesReported employees: 201-500 | Pittsburgh, PA, United States | 201-500 | Exact match | 211 contacts → |
“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Midwest Laboratoriesmidwestlabs.com HQ: Omaha, NE, United StatesReported employees: 51-200 | Omaha, NE, United States | 51-200 | Exact match | 200 contacts → |
“Driving smart decisions has been our passion since 1975, and we continue to do this by recruiting talented individuals in the fields of Chemistry, Biochemistry, Biology…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | GEL Laboratories, LLCgel.com HQ: Charleston, SC, United StatesReported employees: 201-500 | Charleston, SC, United States | 201-500 | Exact match | 195 contacts → |
“Since 1981, GEL Laboratories has been a leading provider of comprehensive and reliable analytical services to the environmental industry including chemical, radiochemical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Rohmtekrohmtek.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 163 contacts → |
“RohmTek is an analytical laboratory support company providing instrument rental, instrument optimization, and analytical laboratory services to the energy industry and beyond.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Energy Laboratories, INCenergylab.com HQ: Billings, WY, United StatesReported employees: 201-500 | Billings, WY, United States | 201-500 | Exact match | 124 contacts → |
“Founded in 1952, Energy Laboratories, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Premier Corexpofg.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 94 contacts → |
“Bridging the gap between geology and engineering.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Phoenix Environmental Laboratories, INCphoenixlabs.com HQ: Manchester, CT, United StatesReported employees: 51-200 | Manchester, CT, United States | 51-200 | Exact match | 78 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Rangefront Mining Servicesrangefront.com HQ: Elko, NV, United StatesReported employees: 51-200 | Elko, NV, United States | 51-200 | Exact match | 70 contacts → |
“Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Stat Analysis Corporationthesterlinglab.com HQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 63 contacts → |
“STAT Analysis Corporation (STAT) is a full-service analytical support laboratory that serves the environmental and industrial hygiene industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Weck Laboratories, INCwecklabs.com HQ: City Of Industry, CA, United StatesReported employees: 51-200 | City Of Industry, CA, United States | 51-200 | Exact match | 60 contacts → |
“Weck Laboratories Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ACZ Laboratoriesacz.com HQ: Steamboat Springs, CO, United StatesReported employees: 51-200 | Steamboat Springs, CO, United States | 51-200 | Exact match | 58 contacts → |
“Since 1980, ACZ Laboratories, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Field GEO Services, INCfieldgeoservices.com HQ: Grand Junction, CO, United StatesReported employees: 51-200 | Grand Junction, CO, United States | 51-200 | Exact match | 50 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | HQ: Knoxville, TN, United StatesReported employees: 51-200 | Knoxville, TN, United States | 51-200 | Exact match | 50 contacts → |
“Galbraith Laboratories, Inc, a Bureau Veritas Company, is a contract analytical testing laboratory with over 64 years of experience in the global marketplace.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Michelson Laboratories, INCmichelsonlab.com HQ: Commerce, CA, United StatesReported employees: 51-200 | Commerce, CA, United States | 51-200 | Exact match | 47 contacts → |
“Since 1970, Michelson Laboratories has provided efficient testing and analyses to an extensive spectrum of customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | RTI Laboratories, INCrtilab.com HQ: Livonia, MI, United StatesReported employees: 51-200 | Livonia, MI, United States | 51-200 | Exact match | 44 contacts → |
“For over 30 years, industry has been relying on RTI Laboratories as an analytical resource.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Geomark Researchgeomarkresearch.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 42 contacts → |
“GeoMark Research is the preeminent geochemical laboratory, providing petroleum fluid analyses to the petroleum industry and offering a full range of oil, gas, and source rock…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Kappes, Cassiday & Associateskcareno.com HQ: Reno, NV, United StatesReported employees: 51-200 | Reno, NV, United States | 51-200 | Exact match | 39 contacts → |
“Since 1972, Kappes, Cassiday & Associates (KCA) has provided process metallurgical services to the international mining industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Industrial Laboratoriesindustriallabs.net HQ: Denver, CO, United StatesReported employees: 11-50 | Denver, CO, United States | 11-50 | Exact match | 38 contacts → |
“Industrial Laboratories (IL) is an independent third party analytical laboratory that specializes in Food and Drug analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | RMB Environmental Laboratories INCrmbel.com HQ: Detroit Lakes, MN, United StatesReported employees: 51-200 | Detroit Lakes, MN, United States | 51-200 | Exact match | 38 contacts → |
“RMB Environmental Laboratories (RMB) is an independent, leading provider of comprehensive environmental testing solutions, founded in 1995.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | OLAola-us.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 37 contacts → |
“Oilfield Labs of America is an analytical laboratory network with a business goal and mission of providing the highest quality analytical testing in the fastest time possible to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Brooks Applied Labs, LLCbrooksapplied.com HQ: Bothell, WA, United StatesReported employees: 51-200 | Bothell, WA, United States | 51-200 | Exact match | 37 contacts → |
“Brooks Applied Labs was formed in 2015 through the merger of the two industry-leaders in the field of specialty trace metals analysis and metals speciation: Brooks Rand Labs &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Fibertec Environmental Servicesfibertec.us HQ: Holt, MI, United StatesReported employees: 51-200 | Holt, MI, United States | 51-200 | Exact match | 36 contacts → |
“Fibertec Environmental Services is a full service environmental analytical laboratory, specializing in environmental analysis, subsurface investigations, and natural gas analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 179 company matches
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Mining assay services: dataset insights
November 6, 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
179 records in the displayed employee bands.
0 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 179 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: November 6, 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 assay services?
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 assay services did RevenueBase find based in the United States?
The saved snapshot records 179 matching company records, 4,363 tracked contacts and 1,536 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: November 6, 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 assay services by geography
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- Mining assay services based in Chile
- Mining assay services based in Germany
- Mining assay services based in India
- Mining assay services based in South Africa
- Mining assay services based in the United Kingdom
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 mining assay services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/mining-assay-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗