Company lists · Data refreshed October 2026
Top 25 Oil and gas audit firms worldwide
RevenueBase identified 2,201 company matches for oil and gas audit firms worldwide as of October 2026 and tracks 37,804 professional contacts across them, including 7,849 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for oil and gas audit firms worldwide, 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. Country and city lists for oil and gas audit firms follow the table.
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 oil and gas audit firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,167 contacts → | ||||
Exact match “We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 2 | 1,521 contacts → | ||||
Exact match “Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 3 | 1,017 contacts → | ||||
Exact match “Empresa líder en el Sector Petrolero, con presencia a Nivel Nacional, principales clientes PEMEX Y CFE, con servicios como perforación de pozos terrestres, Marinos, Geotérmicos…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 4 | 912 contacts → | ||||
Exact match “At CAMIN, we provide inspection, laboratory testing, and additive treatment solutions to the Petroleum Industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 5 | 632 contacts → | ||||
Exact match “PT Solusi Energy Nusantara (SENA) is affiliation of PGN Group, a reputable company which has a core business in natural gas distribution and transmission.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 6 | 608 contacts → | ||||
Exact match “Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 7 | 606 contacts → | ||||
Exact match “Saybolt is the trade name for Core Laboratories' laboratory analyses, independent field inspections, and monitoring and verification programs for crude oil and its derived…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 8 | 560 contacts → | ||||
Exact match “Tubestar, is a privately held company with over 4 decades experience in India.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 9 | 409 contacts → | ||||
Exact match “Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 10 | 366 contacts → | ||||
Exact match “Based in Paris, Lyon, Rennes, Le Havre, Toulouse, Aix en Provence, Casablanca, London and New York, BM & A is an independent and international group positioned on the audit and…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 11 | 275 contacts → | ||||
Exact match “For more than 40 years, M&H has been a trusted source for oil & gas consulting services that maximize value for clients.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 12 | 256 contacts → | ||||
Exact match “Setting the Standard for Premier Inspection Services in the Oil & Gas Industry through our Dedication to Tradition / Talent / Technology / Teamwork TJ Inspection provides the…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 13 | 238 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 14 | 232 contacts → | ||||
Exact match “OCS Group Singapore with its main office in Singapore was founded in 1998, initially under the name Rig International, in 2001 due to various additional services OCS rebranded to…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 15 | 214 contacts → | ||||
Exact match “Zarubezhneft” has a considerable scientific and technological potential that enables it to provide sophisticated full-cycle operations – from designing advanced computer-based…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 16 | 191 contacts → | ||||
Exact match “EAG is a Houston-based, privately held consulting, back-office outsourcing, and IT outsourcing firm that delivers products and services primarily to the upstream and midstream oil…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 17 | 179 contacts → | ||||
Exact match “Auditing, Accounting and Taxation It’s been 100 years since David Strachan strode from the pavement of Smith Street into William Cotta Building at number 331, and put up his…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 18 | 140 contacts → | ||||
Exact match “M M NISSIM & CO LLP (MMN) has been in professional practice from the year 1946.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 19 | 132 contacts → | ||||
Exact match “Welcome to On & Offshore Quality Control Specialists, LLC.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 20 | 126 contacts → | ||||
Exact match “Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 21 | 119 contacts → | ||||
Exact match “For over 90 years, Henry & Peters has provided comprehensive accounting services with a depth of experience in Oil & Gas, Healthcare, Engineering, Construction, Small Business…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 22 | 117 contacts → | ||||
Exact match “Seven Seas Petroleum LLC is a quality and service oriented company providing vital services to the Oman Oil & Gas Industry, helping national and international oil companies to…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 23 | 116 contacts → | ||||
Exact match “Talenz Audit accompagne les acteurs économiques, entreprises et organisations, dans leurs relations économiques, dans l’analyse de la fiabilité de leurs données financières, et…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 24 | 115 contacts → | ||||
Exact match “Ryder Scott Company, L.P.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 25 | 114 contacts → | ||||
Exact match “Jimcol Resources Nigeria Limited is an indigenous company incorporated in 1990.” 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 “oil and gas audit firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 2,201 oil and gas audit firms worldwide
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Oil and gas audit firms worldwide at a glance
As of Oct 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for oil and gas audit firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “oil and gas audit firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. 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 7,849 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 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.
Oil and gas audit firms by location
15 lists · largest firstEvery Oil and gas audit firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Oil and gas audit firms based in the United States306
- Oil and gas audit firms based in Brazil129
- Oil and gas audit firms based in India90
- Oil and gas audit firms based in Nigeria88
- Oil and gas audit firms based in France86
- Oil and gas audit firms based in the United Arab Emirates77
- Oil and gas audit firms based in Türkiye64
- Oil and gas audit firms based in Spain58
- Oil and gas audit firms based in the United Kingdom58
- Oil and gas audit firms based in Canada55
- Oil and gas audit firms based in Germany50
- Oil and gas audit firms based in Colombia41
Cities
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 “oil and gas audit firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many oil and gas audit firms are there worldwide?
RevenueBase identified 2,201 company matches for oil and gas audit firms worldwide 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?
PT Elnusa TBK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most oil and gas audit firms?
The United States leads with 306 companies, followed by Brazil (129) and India (90). Every oil and gas audit firms list by country and city is linked on this page.
Which city has the most oil and gas audit firms?
Houston leads with 63 company records, followed by Calgary (36) and Dubai (36).
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 7,849 professional contacts with verified work emails tracked across these 2,201 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 2,201 oil and gas audit firms worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 oil and gas audit firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,201 matching company records for oil and gas audit firms worldwide, with 37,804 tracked contacts and 7,849 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 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 oil and gas audit firms worldwide
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 |  PT Elnusa TBKelnusa.co.idHQ: Jakarta Selatan, IndonesiaReported employees: 1,001-5,000 | Jakarta Selatan, Indonesia | 1,001-5,000 | Exact match | 4,167 contacts → |
“We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  RSM Ebner Stolzebnerstolz.deHQ: Stuttgart, GermanyReported employees: 1,001-5,000 | Stuttgart, Germany | 1,001-5,000 | Exact match | 1,521 contacts → |
“Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Carso Perforacióncarso.com.mx HQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 1,017 contacts → |
“Empresa líder en el Sector Petrolero, con presencia a Nivel Nacional, principales clientes PEMEX Y CFE, con servicios como perforación de pozos terrestres, Marinos, Geotérmicos…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Camin Cargo Control INCcamincargo.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 912 contacts → |
“At CAMIN, we provide inspection, laboratory testing, and additive treatment solutions to the Petroleum Industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  PT Solusi Energy Nusantarapt-sena.co.idHQ: IndonesiaReported employees: 501-1,000 | Indonesia | 501-1,000 | Exact match | 632 contacts → |
“PT Solusi Energy Nusantara (SENA) is affiliation of PGN Group, a reputable company which has a core business in natural gas distribution and transmission.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  BDO Austriabdo.atHQ: Vienna, AustriaReported employees: 1,001-5,000 | Vienna, Austria | 1,001-5,000 | Exact match | 608 contacts → |
“Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Saybolt Internationalcorelab.comHQ: Vlaardingen, NetherlandsReported employees: 1,001-5,000 | Vlaardingen, Netherlands | 1,001-5,000 | Exact match | 606 contacts → |
“Saybolt is the trade name for Core Laboratories' laboratory analyses, independent field inspections, and monitoring and verification programs for crude oil and its derived…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Tubestar OIL And GAS Services PVT LTDtubestar.com HQ: Navi Mumbai, IndiaReported employees: 501-1,000 | Navi Mumbai, India | 501-1,000 | Exact match | 560 contacts → |
“Tubestar, is a privately held company with over 4 decades experience in India.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Crowe Mackay LLPcrowe.comHQ: Vancouver, BC, CanadaReported employees: 201-500 | Vancouver, BC, Canada | 201-500 | Exact match | 409 contacts → |
“Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Bm&abma-groupe.comHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 366 contacts → |
“Based in Paris, Lyon, Rennes, Le Havre, Toulouse, Aix en Provence, Casablanca, London and New York, BM & A is an independent and international group positioned on the audit and…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  M&hmhes.comHQ: Spring, TX, United StatesReported employees: 201-500 | Spring, TX, United States | 201-500 | Exact match | 275 contacts → |
“For more than 40 years, M&H has been a trusted source for oil & gas consulting services that maximize value for clients.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  TJ Inspection, INCtjinspection.comHQ: Oklahoma City, OK, United StatesReported employees: 201-500 | Oklahoma City, OK, United States | 201-500 | Exact match | 256 contacts → |
“Setting the Standard for Premier Inspection Services in the Oil & Gas Industry through our Dedication to Tradition / Talent / Technology / Teamwork TJ Inspection provides the…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  有限責任監査法人トーマツdeloitte.comHQ: 千代田区, JapanReported employees: 201-500 | 千代田区, Japan | 201-500 | Exact match | 238 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  OCS Group Singaporeocsgroup.sgHQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 232 contacts → |
“OCS Group Singapore with its main office in Singapore was founded in 1998, initially under the name Rig International, in 2001 due to various additional services OCS rebranded to…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  JSC Zarubezhneftnestro.ruHQ: Moscow City, RussiaReported employees: 1,001-5,000 | Moscow City, Russia | 1,001-5,000 | Exact match | 214 contacts → |
“Zarubezhneft” has a considerable scientific and technological potential that enables it to provide sophisticated full-cycle operations – from designing advanced computer-based…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  EAGeaginc.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 191 contacts → |
“EAG is a Houston-based, privately held consulting, back-office outsourcing, and IT outsourcing firm that delivers products and services primarily to the upstream and midstream oil…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  PKF Durbanpkf.co.zaHQ: Umhlanga, South AfricaReported employees: 201-500 | Umhlanga, South Africa | 201-500 | Exact match | 179 contacts → |
“Auditing, Accounting and Taxation It’s been 100 years since David Strachan strode from the pavement of Smith Street into William Cotta Building at number 331, and put up his…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  M M Nissim & CO LLPmmnissim.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 140 contacts → |
“M M NISSIM & CO LLP (MMN) has been in professional practice from the year 1946.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | On & Offshore Quality Control Specialist, Llc. QCSonshoreqcs.com HQ: Austin, TX, United StatesReported employees: 501-1,000 | Austin, TX, United States | 501-1,000 | Exact match | 132 contacts → |
“Welcome to On & Offshore Quality Control Specialists, LLC.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  SDS Petroleum Consultantssdspetroleumconsultants.comHQ: Tyler, TX, United StatesReported employees: 51-200 | Tyler, TX, United States | 51-200 | Exact match | 126 contacts → |
“Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Henry & Peters, P.Chenrypeters.comHQ: Tyler, TX, United StatesReported employees: 51-200 | Tyler, TX, United States | 51-200 | Exact match | 119 contacts → |
“For over 90 years, Henry & Peters has provided comprehensive accounting services with a depth of experience in Oil & Gas, Healthcare, Engineering, Construction, Small Business…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Seven Seas Petroleum LLCsspetroleum.comHQ: Muscat, OmanReported employees: 201-500 | Muscat, Oman | 201-500 | Exact match | 117 contacts → |
“Seven Seas Petroleum LLC is a quality and service oriented company providing vital services to the Oman Oil & Gas Industry, helping national and international oil companies to…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Talenz Audittalenz-audit.frHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 116 contacts → |
“Talenz Audit accompagne les acteurs économiques, entreprises et organisations, dans leurs relations économiques, dans l’analyse de la fiabilité de leurs données financières, et…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Ryder Scott Co. L.Pryderscott.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 115 contacts → |
“Ryder Scott Company, L.P.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Jimcol Resources Nigeria Limitedjimcolresources.comHQ: Portharcourt, NigeriaReported employees: 51-200 | Portharcourt, Nigeria | 51-200 | Exact match | 114 contacts → |
“Jimcol Resources Nigeria Limited is an indigenous company incorporated in 1990.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,201 company matches
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Oil and gas audit firms: 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
2,197 records in the displayed employee bands.
4 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,201 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 ↗
Oil and gas audit firms by location
15 lists · largest firstEvery Oil and gas audit firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Oil and gas audit firms based in the United States306
- Oil and gas audit firms based in Brazil129
- Oil and gas audit firms based in India90
- Oil and gas audit firms based in Nigeria88
- Oil and gas audit firms based in France86
- Oil and gas audit firms based in the United Arab Emirates77
- Oil and gas audit firms based in Türkiye64
- Oil and gas audit firms based in Spain58
- Oil and gas audit firms based in the United Kingdom58
- Oil and gas audit firms based in Canada55
- Oil and gas audit firms based in Germany50
- Oil and gas audit firms based in Colombia41
Cities
Questions about this company list
What does Exact match mean for oil and gas audit firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many oil and gas audit firms did RevenueBase find worldwide?
The saved snapshot records 2,201 matching company records, 37,804 tracked contacts and 7,849 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 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
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Cite this list
RevenueBase Data Team. Top 25 oil and gas audit firms worldwide. Snapshot: October 19, 2026. https://revenuebase.ai/companies/browse/oil-and-gas-audit-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 oil and gas audit firms worldwide
RevenueBase records 2,201 matching company records for oil and gas audit firms worldwide, with 37,804 tracked contacts and 7,849 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 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 oil and gas audit firms worldwide
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 | PT Elnusa TBKelnusa.co.id HQ: Jakarta Selatan, IndonesiaReported employees: 1,001-5,000 | Jakarta Selatan, Indonesia | 1,001-5,000 | Exact match | 4,167 contacts → |
“We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | RSM Ebner Stolzebnerstolz.de HQ: Stuttgart, GermanyReported employees: 1,001-5,000 | Stuttgart, Germany | 1,001-5,000 | Exact match | 1,521 contacts → |
“Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Carso Perforacióncarso.com.mx HQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 1,017 contacts → |
“Empresa líder en el Sector Petrolero, con presencia a Nivel Nacional, principales clientes PEMEX Y CFE, con servicios como perforación de pozos terrestres, Marinos, Geotérmicos…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Camin Cargo Control INCcamincargo.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 912 contacts → |
“At CAMIN, we provide inspection, laboratory testing, and additive treatment solutions to the Petroleum Industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | PT Solusi Energy Nusantarapt-sena.co.id HQ: IndonesiaReported employees: 501-1,000 | Indonesia | 501-1,000 | Exact match | 632 contacts → |
“PT Solusi Energy Nusantara (SENA) is affiliation of PGN Group, a reputable company which has a core business in natural gas distribution and transmission.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | BDO Austriabdo.at HQ: Vienna, AustriaReported employees: 1,001-5,000 | Vienna, Austria | 1,001-5,000 | Exact match | 608 contacts → |
“Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Saybolt Internationalcorelab.com HQ: Vlaardingen, NetherlandsReported employees: 1,001-5,000 | Vlaardingen, Netherlands | 1,001-5,000 | Exact match | 606 contacts → |
“Saybolt is the trade name for Core Laboratories' laboratory analyses, independent field inspections, and monitoring and verification programs for crude oil and its derived…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Tubestar OIL And GAS Services PVT LTDtubestar.com HQ: Navi Mumbai, IndiaReported employees: 501-1,000 | Navi Mumbai, India | 501-1,000 | Exact match | 560 contacts → |
“Tubestar, is a privately held company with over 4 decades experience in India.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Crowe Mackay LLPcrowe.com HQ: Vancouver, BC, CanadaReported employees: 201-500 | Vancouver, BC, Canada | 201-500 | Exact match | 409 contacts → |
“Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Bm&abma-groupe.com HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 366 contacts → |
“Based in Paris, Lyon, Rennes, Le Havre, Toulouse, Aix en Provence, Casablanca, London and New York, BM & A is an independent and international group positioned on the audit and…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | M&hmhes.com HQ: Spring, TX, United StatesReported employees: 201-500 | Spring, TX, United States | 201-500 | Exact match | 275 contacts → |
“For more than 40 years, M&H has been a trusted source for oil & gas consulting services that maximize value for clients.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | TJ Inspection, INCtjinspection.com HQ: Oklahoma City, OK, United StatesReported employees: 201-500 | Oklahoma City, OK, United States | 201-500 | Exact match | 256 contacts → |
“Setting the Standard for Premier Inspection Services in the Oil & Gas Industry through our Dedication to Tradition / Talent / Technology / Teamwork TJ Inspection provides the…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 有限責任監査法人トーマツdeloitte.com HQ: 千代田区, JapanReported employees: 201-500 | 千代田区, Japan | 201-500 | Exact match | 238 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | OCS Group Singaporeocsgroup.sg HQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 232 contacts → |
“OCS Group Singapore with its main office in Singapore was founded in 1998, initially under the name Rig International, in 2001 due to various additional services OCS rebranded to…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | JSC Zarubezhneftnestro.ru HQ: Moscow City, RussiaReported employees: 1,001-5,000 | Moscow City, Russia | 1,001-5,000 | Exact match | 214 contacts → |
“Zarubezhneft” has a considerable scientific and technological potential that enables it to provide sophisticated full-cycle operations – from designing advanced computer-based…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | EAGeaginc.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 191 contacts → |
“EAG is a Houston-based, privately held consulting, back-office outsourcing, and IT outsourcing firm that delivers products and services primarily to the upstream and midstream oil…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PKF Durbanpkf.co.za HQ: Umhlanga, South AfricaReported employees: 201-500 | Umhlanga, South Africa | 201-500 | Exact match | 179 contacts → |
“Auditing, Accounting and Taxation It’s been 100 years since David Strachan strode from the pavement of Smith Street into William Cotta Building at number 331, and put up his…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | M M Nissim & CO LLPmmnissim.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 140 contacts → |
“M M NISSIM & CO LLP (MMN) has been in professional practice from the year 1946.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | On & Offshore Quality Control Specialist, Llc. QCSonshoreqcs.com HQ: Austin, TX, United StatesReported employees: 501-1,000 | Austin, TX, United States | 501-1,000 | Exact match | 132 contacts → |
“Welcome to On & Offshore Quality Control Specialists, LLC.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | SDS Petroleum Consultantssdspetroleumconsultants.com HQ: Tyler, TX, United StatesReported employees: 51-200 | Tyler, TX, United States | 51-200 | Exact match | 126 contacts → |
“Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Henry & Peters, P.Chenrypeters.com HQ: Tyler, TX, United StatesReported employees: 51-200 | Tyler, TX, United States | 51-200 | Exact match | 119 contacts → |
“For over 90 years, Henry & Peters has provided comprehensive accounting services with a depth of experience in Oil & Gas, Healthcare, Engineering, Construction, Small Business…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Seven Seas Petroleum LLCsspetroleum.com HQ: Muscat, OmanReported employees: 201-500 | Muscat, Oman | 201-500 | Exact match | 117 contacts → |
“Seven Seas Petroleum LLC is a quality and service oriented company providing vital services to the Oman Oil & Gas Industry, helping national and international oil companies to…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Talenz Audittalenz-audit.fr HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 116 contacts → |
“Talenz Audit accompagne les acteurs économiques, entreprises et organisations, dans leurs relations économiques, dans l’analyse de la fiabilité de leurs données financières, et…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Ryder Scott Co. L.Pryderscott.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 115 contacts → |
“Ryder Scott Company, L.P.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Jimcol Resources Nigeria Limitedjimcolresources.com HQ: Portharcourt, NigeriaReported employees: 51-200 | Portharcourt, Nigeria | 51-200 | Exact match | 114 contacts → |
“Jimcol Resources Nigeria Limited is an indigenous company incorporated in 1990.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Oil and gas audit firms: 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
2,197 records in the displayed employee bands.
4 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,201 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 ↗
Oil and gas audit firms by location
15 lists · largest firstEvery Oil and gas audit firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Oil and gas audit firms based in the United States306
- Oil and gas audit firms based in Brazil129
- Oil and gas audit firms based in India90
- Oil and gas audit firms based in Nigeria88
- Oil and gas audit firms based in France86
- Oil and gas audit firms based in the United Arab Emirates77
- Oil and gas audit firms based in Türkiye64
- Oil and gas audit firms based in Spain58
- Oil and gas audit firms based in the United Kingdom58
- Oil and gas audit firms based in Canada55
- Oil and gas audit firms based in Germany50
- Oil and gas audit firms based in Colombia41
Cities
Questions about this company list
What does Exact match mean for oil and gas audit firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many oil and gas audit firms did RevenueBase find worldwide?
The saved snapshot records 2,201 matching company records, 37,804 tracked contacts and 7,849 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 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
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Cite this list
RevenueBase Data Team. Top 25 oil and gas audit firms worldwide. Snapshot: October 19, 2026. https://revenuebase.ai/companies/browse/oil-and-gas-audit-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗