Company lists · Data refreshed November 2026
Top 23 Formation evaluation services based in the United States
RevenueBase identified 196 company matches for formation evaluation services associated with the United States as of November 2026 and tracks 6,443 professional contacts across them, including 1,627 with verified work emails. Houston is the largest hub.
This list covers company matches for formation evaluation 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 23 largest formation evaluation services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,610 contacts → | ||||
Exact match “Founded in 1919, Halliburton is one of the world’s largest providers of products and services to the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,601 contacts → | ||||
Exact match “With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 508 contacts → | ||||
Exact match “GGS provides an integrated suite of Geoscience solutions to the global oil and gas industry including high-resolution RG-3D Reservoir Grade® seismic data acquisition, Multi Client…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 384 contacts → | ||||
Exact match “Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 203 contacts → | ||||
Exact match “ROGII is the leading technology provider for upstream Oil & Gas providing solutions for geoscience, drilling, and completions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 89 contacts → | ||||
Exact match “Anyone can provide data.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 68 contacts → | ||||
Exact match “Headquartered in Wichita, Kansas, and founded in 1993, Paragon Geophysical Services, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 66 contacts → | ||||
Exact match “Impac Exploration Services, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 56 contacts → | ||||
Exact match “Terra Guidance provides geological analysis remotely, onsite, and in-house.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 50 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 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 | |||||
| 12 | 40 contacts → | ||||
Exact match “We are driven to be the best geological well-site service company in the country.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 37 contacts → | ||||
Exact match “MCWL began in 1990 as a mud logging company and has since grown into a leader in all facets of formation evaluation services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 34 contacts → | ||||
Exact match “Seismic Imaging & Reservoir Services & Petrophysics” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 33 contacts → | ||||
Exact match “Since 1961, CG & A has been providing reliable and accurate reserves and economics evaluations to the oil and gas industry throughout the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 30 contacts → | ||||
Exact match “Seitel is an asset-light information company and a leading provider of land subsurface geophysical information to E&P companies in North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 26 contacts → | ||||
Exact match “A premier Petroleum Engineering firm merging the Reservoir Engineering expertise of W.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 26 contacts → | ||||
Exact match “Specializing in helping exploration & production companies design, implement and sustain risk analysis systems for enhanced predictive and financial performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 26 contacts → | ||||
Exact match “When a well kicks off horizontally, our expertise runs deep.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 24 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 23 contacts → | ||||
Exact match “Providing the oil industry with reliable products and services for more than 80 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 22 contacts → | ||||
Exact match “TRC Consultants, LC is the provider of PHDWin integrated economics and decline curve analysis software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 18 contacts → | ||||
Exact match “Driven by our dedication to service quality and efficiency, Wireline Logging Solutions is dedicated to provide only the best: People, Process, Equipment, and Technology.” 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 “formation evaluation 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 23 of 196 formation evaluation services based in the United States
See the full list, filter by size, metro and specialty, and access 1,627 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Formation evaluation 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 196 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 “formation evaluation 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 1,627 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.
Formation evaluation services by metro
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 “formation evaluation services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many formation evaluation services are there based in the United States?
RevenueBase identified 196 company matches for formation evaluation 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?
Halliburton Energy Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most formation evaluation services?
Houston leads with 61 company records, followed by Denver (9) and Dallas (8).
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 1,627 professional contacts with verified work emails tracked across these 196 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 196 formation evaluation services based in the United States. Start with a free account, no credit card.
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Formation evaluation services by geography
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.
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Company intelligence · public preview
Top 23 formation evaluation 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 196 matching company records for formation evaluation services based in the United States, with 6,443 tracked contacts and 1,627 verified work emails.
This public preview shows 23 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 23 formation evaluation 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 |  Halliburton Energy Serviceshalliburton.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 1,610 contacts → |
“Founded in 1919, Halliburton is one of the world’s largest providers of products and services to the energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Core Laboratoriescorelab.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,601 contacts → |
“With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Global Geophysical Servicesglobalgeophysical.comHQ: Missouri City, TX, United StatesReported employees: 201-500 | Missouri City, TX, United States | 201-500 | Exact match | 508 contacts → |
“GGS provides an integrated suite of Geoscience solutions to the global oil and gas industry including high-resolution RG-3D Reservoir Grade® seismic data acquisition, Multi Client…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Express Energy Serviceseeslp.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 384 contacts → |
“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  ROGIIrogii.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 203 contacts → |
“ROGII is the leading technology provider for upstream Oil & Gas providing solutions for geoscience, drilling, and completions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Datalogdataloggs.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 89 contacts → |
“Anyone can provide data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Paragon Geophysical Services, INCparagongeo.comHQ: Wichita, KS, United StatesReported employees: 51-200 | Wichita, KS, United States | 51-200 | Exact match | 68 contacts → |
“Headquartered in Wichita, Kansas, and founded in 1993, Paragon Geophysical Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Impac Exploration Servicesimpacxs.com HQ: Weatherford, OK, United StatesReported employees: 51-200 | Weatherford, OK, United States | 51-200 | Exact match | 66 contacts → |
“Impac Exploration Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Terra Guidance, LLCterraguidance.comHQ: Englewood, CO, United StatesReported employees: 51-200 | Englewood, CO, United States | 51-200 | Exact match | 56 contacts → |
“Terra Guidance provides geological analysis remotely, onsite, and in-house.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  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. | |||||
| 11 |  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. | |||||
| 12 |  Columbine Corporationcolumbineco.comHQ: Denver, PA, United StatesReported employees: 201-500 | Denver, PA, United States | 201-500 | Exact match | 40 contacts → |
“We are driven to be the best geological well-site service company in the country.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Mcwl Paladin Geologicalmcwlinc.comHQ: Norman, OK, United StatesReported employees: 11-50 | Norman, OK, United States | 11-50 | Exact match | 37 contacts → |
“MCWL began in 1990 as a mud logging company and has since grown into a leader in all facets of formation evaluation services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Tricon Geophysics, INCtricongeophysics.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 34 contacts → |
“Seismic Imaging & Reservoir Services & Petrophysics” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Cawley, Gillespie & Associates, INCcgaus.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 33 contacts → |
“Since 1961, CG & A has been providing reliable and accurate reserves and economics evaluations to the oil and gas industry throughout the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Seitelseitel.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 30 contacts → |
“Seitel is an asset-light information company and a leading provider of land subsurface geophysical information to E&P companies in North America.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  W.D. VON Gonten Engineering LLCwdvgco.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 26 contacts → |
“A premier Petroleum Engineering firm merging the Reservoir Engineering expertise of W.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Rose Subsurface Assessmentroseassoc.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“Specializing in helping exploration & production companies design, implement and sustain risk analysis systems for enhanced predictive and financial performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Geovisiongeosteeringvision.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“When a well kicks off horizontally, our expertise runs deep.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Pinson Well Logging, INCpinsonwelllogging.comHQ: Oklahoma City, OK, United StatesReported employees: 11-50 | Oklahoma City, OK, United States | 11-50 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 |  M&m OIL Toolsmmoiltools.comHQ: Breaux Bridge, TX, United StatesReported employees: 11-50 | Breaux Bridge, TX, United States | 11-50 | Exact match | 23 contacts → |
“Providing the oil industry with reliable products and services for more than 80 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  TRC Consultants, LC Phdwinphdwin.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 22 contacts → |
“TRC Consultants, LC is the provider of PHDWin integrated economics and decline curve analysis software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Wireline Logging Solutionswirelinelogs.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 18 contacts → |
“Driven by our dedication to service quality and efficiency, Wireline Logging Solutions is dedicated to provide only the best: People, Process, Equipment, and Technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 196 company matches
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Formation evaluation 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
196 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 196 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 ↗
Formation evaluation services by metro
Questions about this company list
What does Exact match mean for formation evaluation 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 formation evaluation services did RevenueBase find based in the United States?
The saved snapshot records 196 matching company records, 6,443 tracked contacts and 1,627 verified emails. The public preview displays 23 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
Formation evaluation services by geography
Cite this list
RevenueBase Data Team. Top 23 formation evaluation services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/formation-evaluation-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
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- Lists by location
- Lists A-Z
- New lists
- Formation evaluation services based in Calgary, Canada
- Formation evaluation services based in Houston, United States
- Formation evaluation services based in Canada
- Formation evaluation services based in the United Kingdom
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Company intelligence · public preview
Top 23 formation evaluation services based in the United States
RevenueBase records 196 matching company records for formation evaluation services based in the United States, with 6,443 tracked contacts and 1,627 verified work emails.
This public preview shows 23 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 23 formation evaluation 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 | Halliburton Energy Serviceshalliburton.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 1,610 contacts → |
“Founded in 1919, Halliburton is one of the world’s largest providers of products and services to the energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Core Laboratoriescorelab.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,601 contacts → |
“With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Global Geophysical Servicesglobalgeophysical.com HQ: Missouri City, TX, United StatesReported employees: 201-500 | Missouri City, TX, United States | 201-500 | Exact match | 508 contacts → |
“GGS provides an integrated suite of Geoscience solutions to the global oil and gas industry including high-resolution RG-3D Reservoir Grade® seismic data acquisition, Multi Client…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Express Energy Serviceseeslp.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 384 contacts → |
“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ROGIIrogii.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 203 contacts → |
“ROGII is the leading technology provider for upstream Oil & Gas providing solutions for geoscience, drilling, and completions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Datalogdataloggs.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 89 contacts → |
“Anyone can provide data.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Paragon Geophysical Services, INCparagongeo.com HQ: Wichita, KS, United StatesReported employees: 51-200 | Wichita, KS, United States | 51-200 | Exact match | 68 contacts → |
“Headquartered in Wichita, Kansas, and founded in 1993, Paragon Geophysical Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Impac Exploration Servicesimpacxs.com HQ: Weatherford, OK, United StatesReported employees: 51-200 | Weatherford, OK, United States | 51-200 | Exact match | 66 contacts → |
“Impac Exploration Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Terra Guidance, LLCterraguidance.com HQ: Englewood, CO, United StatesReported employees: 51-200 | Englewood, CO, United States | 51-200 | Exact match | 56 contacts → |
“Terra Guidance provides geological analysis remotely, onsite, and in-house.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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. | |||||
| 11 | 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. | |||||
| 12 | Columbine Corporationcolumbineco.com HQ: Denver, PA, United StatesReported employees: 201-500 | Denver, PA, United States | 201-500 | Exact match | 40 contacts → |
“We are driven to be the best geological well-site service company in the country.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Mcwl Paladin Geologicalmcwlinc.com HQ: Norman, OK, United StatesReported employees: 11-50 | Norman, OK, United States | 11-50 | Exact match | 37 contacts → |
“MCWL began in 1990 as a mud logging company and has since grown into a leader in all facets of formation evaluation services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Tricon Geophysics, INCtricongeophysics.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 34 contacts → |
“Seismic Imaging & Reservoir Services & Petrophysics” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Cawley, Gillespie & Associates, INCcgaus.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 33 contacts → |
“Since 1961, CG & A has been providing reliable and accurate reserves and economics evaluations to the oil and gas industry throughout the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Seitelseitel.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 30 contacts → |
“Seitel is an asset-light information company and a leading provider of land subsurface geophysical information to E&P companies in North America.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | W.D. VON Gonten Engineering LLCwdvgco.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 26 contacts → |
“A premier Petroleum Engineering firm merging the Reservoir Engineering expertise of W.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Rose Subsurface Assessmentroseassoc.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“Specializing in helping exploration & production companies design, implement and sustain risk analysis systems for enhanced predictive and financial performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Geovisiongeosteeringvision.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“When a well kicks off horizontally, our expertise runs deep.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Pinson Well Logging, INCpinsonwelllogging.com HQ: Oklahoma City, OK, United StatesReported employees: 11-50 | Oklahoma City, OK, United States | 11-50 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | M&m OIL Toolsmmoiltools.com HQ: Breaux Bridge, TX, United StatesReported employees: 11-50 | Breaux Bridge, TX, United States | 11-50 | Exact match | 23 contacts → |
“Providing the oil industry with reliable products and services for more than 80 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | TRC Consultants, LC Phdwinphdwin.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 22 contacts → |
“TRC Consultants, LC is the provider of PHDWin integrated economics and decline curve analysis software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Wireline Logging Solutionswirelinelogs.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 18 contacts → |
“Driven by our dedication to service quality and efficiency, Wireline Logging Solutions is dedicated to provide only the best: People, Process, Equipment, and Technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 196 company matches
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Formation evaluation 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
196 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 196 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 ↗
Formation evaluation services by metro
Questions about this company list
What does Exact match mean for formation evaluation 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 formation evaluation services did RevenueBase find based in the United States?
The saved snapshot records 196 matching company records, 6,443 tracked contacts and 1,627 verified emails. The public preview displays 23 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
Formation evaluation services by geography
Cite this list
RevenueBase Data Team. Top 23 formation evaluation services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/formation-evaluation-services/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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