Company lists · Data refreshed October 2026
Top 25 Oilfield consultancy services based in the United States
RevenueBase identified 3,958 company matches for oilfield consultancy services associated with the United States as of October 2026 and tracks 253,823 professional contacts across them, including 69,748 with verified work emails. Houston is the largest hub.
This list covers company matches for oilfield consultancy 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 October 19, 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 oilfield consultancy services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 56,783 contacts → | ||||
Exact match “We collaborate and engineer solutions to maximize asset value for our customers.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 2 | 30,910 contacts → | ||||
Exact match “NOV delivers technology-driven solutions to empower the global energy industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 3 | 6,721 contacts → | ||||
Exact match “Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 4 | 6,266 contacts → | ||||
Exact match “Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 5 | 3,884 contacts → | ||||
Exact match “National Energy Services Reunited Corp.(NESR) was founded in 2017 as one of the largest national oilfield services providers in the MENA and Asia Pacific regions and was the first…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 6 | 3,263 contacts → | ||||
Exact match “We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 7 | 3,059 contacts → | ||||
Exact match “POWER Engineers is now part of WSP.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 8 | 3,020 contacts → | ||||
Exact match “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 9 | 2,923 contacts → | ||||
Exact match “Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 10 | 2,444 contacts → | ||||
Exact match “Patterson-UTI is a leading provider of drilling and completion services to oil and natural gas exploration and production companies in the United States and other select…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 11 | 2,076 contacts → | ||||
Exact match “For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 12 | 1,771 contacts → | ||||
Exact match “Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 13 | 1,652 contacts → | ||||
Exact match “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 14 | 1,652 contacts → | ||||
Exact match “Oil States International, Inc.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 15 | 1,628 contacts → | ||||
Exact match “In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 16 | 1,543 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 · Oct 19, 2026 · View company records in RevenueBase | |||||
| 17 | 1,499 contacts → | ||||
Exact match “Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 18 | 1,427 contacts → | ||||
Exact match “Dril-Quip is part of Innovex, a unique energy industrial platform.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 19 | 1,418 contacts → | ||||
Exact match “Partner Assessment Corp.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 20 | 1,361 contacts → | ||||
Exact match “Training and Development Solutions” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 21 | 1,329 contacts → | ||||
Exact match “Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 22 | 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 19, 2026 · View company records in RevenueBase | |||||
| 23 | 1,203 contacts → | ||||
Exact match “Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 24 | 1,171 contacts → | ||||
Exact match “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 25 | 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 19, 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 “oilfield consultancy 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 3,958 oilfield consultancy services based in the United States
See the full list, filter by size, metro and specialty, and access 69,748 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Oilfield consultancy services based in the United States at a glance
As of Oct 19, 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 3,958 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 “oilfield consultancy 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 69,748 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 19, 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.
Oilfield consultancy services by metro
- Oilfield consultancy services in Houston864
- Oilfield consultancy services in Midland161
- Oilfield consultancy services in Odessa71
- Oilfield consultancy services in Denver70
- Oilfield consultancy services in Lafayette62
- Oilfield consultancy services in The Woodlands57
- Oilfield consultancy services in Oklahoma City55
- Oilfield consultancy services in Katy51
- Oilfield consultancy services in Tulsa50
- Oilfield consultancy services in Dallas46
- Oilfield consultancy services in Broussard43
- Oilfield consultancy services in Spring38
- Oilfield consultancy services in Austin36
- Oilfield consultancy services in Bakersfield31
- Oilfield consultancy services in Corpus Christi29
- Oilfield consultancy services in Fort Worth29
- Oilfield consultancy services in San Antonio29
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 “oilfield consultancy services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many oilfield consultancy services are there based in the United States?
RevenueBase identified 3,958 company matches for oilfield consultancy services 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?
Halliburton tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most oilfield consultancy services?
Houston leads with 864 company records, followed by Midland (161) and Odessa (71).
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 69,748 professional contacts with verified work emails tracked across these 3,958 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,958 oilfield consultancy services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Oilfield consultancy services by geography
- Oilfield consultancy services based in Luanda, Angola
- Oilfield consultancy services based in Buenos Aires, Argentina
- Oilfield consultancy services based in Brisbane, Australia
- Oilfield consultancy services based in Melbourne, Australia
- Oilfield consultancy services based in Perth, Australia
- Oilfield consultancy services based in Sydney, Australia
- Oilfield consultancy services based in Baku, Azerbaijan
- Oilfield consultancy services based in Belo Horizonte, Brazil
- Oilfield consultancy services based in Porto Alegre, Brazil
- Oilfield consultancy services based in Rio De Janeiro, Brazil
- Oilfield consultancy services based in Salvador, Brazil
- Oilfield consultancy services based in Sao Paulo, Brazil
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
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- Lists A-Z
- New lists
- Oilfield consultancy services based in Luanda, Angola
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Company intelligence · public preview
Top 25 oilfield consultancy 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 3,958 matching company records for oilfield consultancy services based in the United States, with 253,823 tracked contacts and 69,748 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 19, 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 oilfield consultancy 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 |  Halliburtonhalliburton.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 56,783 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  NOVnov.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 30,910 contacts → |
“NOV delivers technology-driven solutions to empower the global energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  EXPROexpro.comHQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 6,721 contacts → |
“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Nabors Industriesnabors.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 6,266 contacts → |
“Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  NESRnesr.comHQ: Houston, United StatesReported employees: 5,001-10,000 | Houston, United States | 5,001-10,000 | Exact match | 3,884 contacts → |
“National Energy Services Reunited Corp.(NESR) was founded in 2017 as one of the largest national oilfield services providers in the MENA and Asia Pacific regions and was the first…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Valaris Limitedvalaris.comHQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 3,263 contacts → |
“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Power Engineerswsp.comHQ: Hailey, ID, United StatesReported employees: 1,001-5,000 | Hailey, ID, United States | 1,001-5,000 | Exact match | 3,059 contacts → |
“POWER Engineers is now part of WSP.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Entrust Solutions Groupentrustsol.comHQ: Lisle, IL, United StatesReported employees: 1,001-5,000 | Lisle, IL, United States | 1,001-5,000 | Exact match | 3,020 contacts → |
“ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  KEY Energy Serviceskeyenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,923 contacts → |
“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Patterson-Utipatenergy.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 2,444 contacts → |
“Patterson-UTI is a leading provider of drilling and completion services to oil and natural gas exploration and production companies in the United States and other select…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Superior Energy Servicessuperiorenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,076 contacts → |
“For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Helix Energy Solutions Grouphelixesg.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,771 contacts → |
“Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Audubon Companiesauduboncompanies.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,652 contacts → |
“Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | OIL States Internationaloilstatesintl.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 1,652 contacts → |
“Oil States International, Inc.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Exponentexponent.comHQ: Menlo Park, CA, United StatesReported employees: 1,001-5,000 | Menlo Park, CA, United States | 1,001-5,000 | Exact match | 1,628 contacts → |
“In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Core Laboratoriescorelab.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,543 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 · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Atwell, LLCatwell.comHQ: Southfield, MI, United StatesReported employees: 1,001-5,000 | Southfield, MI, United States | 1,001-5,000 | Exact match | 1,499 contacts → |
“Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Dril-Quipinnovex-inc.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,427 contacts → |
“Dril-Quip is part of Innovex, a unique energy industrial platform.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Partner Engineering & Science, INCpartneresi.comHQ: Torrance, CA, United StatesReported employees: 1,001-5,000 | Torrance, CA, United States | 1,001-5,000 | Exact match | 1,418 contacts → |
“Partner Assessment Corp.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  PMIpmi.netHQ: Irvine, CA, United StatesReported employees: Not recorded | Irvine, CA, United States | Not recorded | Exact match | 1,361 contacts → |
“Training and Development Solutions” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Cudd Energy Servicescuddenergyservices.comHQ: The Woodlands, TX, United StatesReported employees: 1,001-5,000 | The Woodlands, TX, United States | 1,001-5,000 | Exact match | 1,329 contacts → |
“Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Englobalenglobal.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 1,203 contacts → |
“Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Gulf Companiesgulfcompanies.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,171 contacts → |
“At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,958 company matches
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Oilfield consultancy services: dataset insights
October 19, 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
3,957 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 3,958 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 19, 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 ↗
Oilfield consultancy services by metro
- Oilfield consultancy services in Houston864
- Oilfield consultancy services in Midland161
- Oilfield consultancy services in Odessa71
- Oilfield consultancy services in Denver70
- Oilfield consultancy services in Lafayette62
- Oilfield consultancy services in The Woodlands57
- Oilfield consultancy services in Oklahoma City55
- Oilfield consultancy services in Katy51
- Oilfield consultancy services in Tulsa50
- Oilfield consultancy services in Dallas46
- Oilfield consultancy services in Broussard43
- Oilfield consultancy services in Spring38
- Oilfield consultancy services in Austin36
- Oilfield consultancy services in Bakersfield31
- Oilfield consultancy services in Corpus Christi29
- Oilfield consultancy services in Fort Worth29
- Oilfield consultancy services in San Antonio29
Questions about this company list
What does Exact match mean for oilfield consultancy 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 oilfield consultancy services did RevenueBase find based in the United States?
The saved snapshot records 3,958 matching company records, 253,823 tracked contacts and 69,748 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 19, 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
Oilfield consultancy services by geography
- Oilfield consultancy services based in Luanda, Angola
- Oilfield consultancy services based in Buenos Aires, Argentina
- Oilfield consultancy services based in Brisbane, Australia
- Oilfield consultancy services based in Melbourne, Australia
- Oilfield consultancy services based in Perth, Australia
- Oilfield consultancy services based in Sydney, Australia
- Oilfield consultancy services based in Baku, Azerbaijan
- Oilfield consultancy services based in Belo Horizonte, Brazil
- Oilfield consultancy services based in Porto Alegre, Brazil
- Oilfield consultancy services based in Rio De Janeiro, Brazil
- Oilfield consultancy services based in Salvador, Brazil
- Oilfield consultancy services based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 25 oilfield consultancy services based in the United States. Snapshot: October 19, 2026. https://revenuebase.ai/companies/oilfield-consultancy-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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Oilfield consultancy services based in Luanda, Angola
- Oilfield consultancy services based in Buenos Aires, Argentina
- Oilfield consultancy services based in Brisbane, Australia
- Oilfield consultancy services based in Melbourne, Australia
- Oilfield consultancy services based in Perth, Australia
- Oilfield consultancy services based in Sydney, Australia
Company intelligence · public preview
Top 25 oilfield consultancy services based in the United States
RevenueBase records 3,958 matching company records for oilfield consultancy services based in the United States, with 253,823 tracked contacts and 69,748 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 19, 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 oilfield consultancy 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 | Halliburtonhalliburton.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 56,783 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | NOVnov.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 30,910 contacts → |
“NOV delivers technology-driven solutions to empower the global energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | EXPROexpro.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 6,721 contacts → |
“Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Nabors Industriesnabors.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 6,266 contacts → |
“Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | NESRnesr.com HQ: Houston, United StatesReported employees: 5,001-10,000 | Houston, United States | 5,001-10,000 | Exact match | 3,884 contacts → |
“National Energy Services Reunited Corp.(NESR) was founded in 2017 as one of the largest national oilfield services providers in the MENA and Asia Pacific regions and was the first…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Valaris Limitedvalaris.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 3,263 contacts → |
“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Power Engineerswsp.com HQ: Hailey, ID, United StatesReported employees: 1,001-5,000 | Hailey, ID, United States | 1,001-5,000 | Exact match | 3,059 contacts → |
“POWER Engineers is now part of WSP.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Entrust Solutions Groupentrustsol.com HQ: Lisle, IL, United StatesReported employees: 1,001-5,000 | Lisle, IL, United States | 1,001-5,000 | Exact match | 3,020 contacts → |
“ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | KEY Energy Serviceskeyenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,923 contacts → |
“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Patterson-Utipatenergy.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 2,444 contacts → |
“Patterson-UTI is a leading provider of drilling and completion services to oil and natural gas exploration and production companies in the United States and other select…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Superior Energy Servicessuperiorenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,076 contacts → |
“For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Helix Energy Solutions Grouphelixesg.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,771 contacts → |
“Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Audubon Companiesauduboncompanies.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,652 contacts → |
“Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | OIL States Internationaloilstatesintl.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 1,652 contacts → |
“Oil States International, Inc.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Exponentexponent.com HQ: Menlo Park, CA, United StatesReported employees: 1,001-5,000 | Menlo Park, CA, United States | 1,001-5,000 | Exact match | 1,628 contacts → |
“In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Core Laboratoriescorelab.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,543 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 · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Atwell, LLCatwell.com HQ: Southfield, MI, United StatesReported employees: 1,001-5,000 | Southfield, MI, United States | 1,001-5,000 | Exact match | 1,499 contacts → |
“Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Dril-Quipinnovex-inc.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,427 contacts → |
“Dril-Quip is part of Innovex, a unique energy industrial platform.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Partner Engineering & Science, INCpartneresi.com HQ: Torrance, CA, United StatesReported employees: 1,001-5,000 | Torrance, CA, United States | 1,001-5,000 | Exact match | 1,418 contacts → |
“Partner Assessment Corp.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | PMIpmi.net HQ: Irvine, CA, United StatesReported employees: Not recorded | Irvine, CA, United States | Not recorded | Exact match | 1,361 contacts → |
“Training and Development Solutions” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Cudd Energy Servicescuddenergyservices.com HQ: The Woodlands, TX, United StatesReported employees: 1,001-5,000 | The Woodlands, TX, United States | 1,001-5,000 | Exact match | 1,329 contacts → |
“Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Englobalenglobal.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 1,203 contacts → |
“Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Gulf Companiesgulfcompanies.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,171 contacts → |
“At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,958 company matches
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Oilfield consultancy services: dataset insights
October 19, 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
3,957 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 3,958 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 19, 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 ↗
Oilfield consultancy services by metro
- Oilfield consultancy services in Houston864
- Oilfield consultancy services in Midland161
- Oilfield consultancy services in Odessa71
- Oilfield consultancy services in Denver70
- Oilfield consultancy services in Lafayette62
- Oilfield consultancy services in The Woodlands57
- Oilfield consultancy services in Oklahoma City55
- Oilfield consultancy services in Katy51
- Oilfield consultancy services in Tulsa50
- Oilfield consultancy services in Dallas46
- Oilfield consultancy services in Broussard43
- Oilfield consultancy services in Spring38
- Oilfield consultancy services in Austin36
- Oilfield consultancy services in Bakersfield31
- Oilfield consultancy services in Corpus Christi29
- Oilfield consultancy services in Fort Worth29
- Oilfield consultancy services in San Antonio29
Questions about this company list
What does Exact match mean for oilfield consultancy 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 oilfield consultancy services did RevenueBase find based in the United States?
The saved snapshot records 3,958 matching company records, 253,823 tracked contacts and 69,748 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 19, 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
Oilfield consultancy services by geography
- Oilfield consultancy services based in Luanda, Angola
- Oilfield consultancy services based in Buenos Aires, Argentina
- Oilfield consultancy services based in Brisbane, Australia
- Oilfield consultancy services based in Melbourne, Australia
- Oilfield consultancy services based in Perth, Australia
- Oilfield consultancy services based in Sydney, Australia
- Oilfield consultancy services based in Baku, Azerbaijan
- Oilfield consultancy services based in Belo Horizonte, Brazil
- Oilfield consultancy services based in Porto Alegre, Brazil
- Oilfield consultancy services based in Rio De Janeiro, Brazil
- Oilfield consultancy services based in Salvador, Brazil
- Oilfield consultancy services based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 25 oilfield consultancy services based in the United States. Snapshot: October 19, 2026. https://revenuebase.ai/companies/oilfield-consultancy-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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Oilfield consultancy services based in Luanda, Angola
- Oilfield consultancy services based in Buenos Aires, Argentina
- Oilfield consultancy services based in Brisbane, Australia
- Oilfield consultancy services based in Melbourne, Australia
- Oilfield consultancy services based in Perth, Australia
- Oilfield consultancy services based in Sydney, Australia