Company lists · Data refreshed November 2026

Top 25 Oil and gas tax specialists worldwide

Name: Oil and gas tax specialists worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 4, 2026 9,318 companies tracked

RevenueBase identified 9,318 company matches for oil and gas tax specialists worldwide as of November 2026 and tracks 68,112 professional contacts across them, including 21,168 with verified work emails. Germany is the largest market and Sao Paulo the largest hub.

This list covers company matches for oil and gas tax specialists 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 November 4, 2026. Country and city lists for oil and gas tax specialists 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 4, 2026 How this list was built

9,318Companies

68,112Contacts tracked

21,168Verified emails

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The 25 largest oil and gas tax specialists worldwide

Ranked by team size

Top 25 of 9,318 company matches for oil and gas tax specialists worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	RYAN	Exact match	Dallas, CT, United StatesHQ recorded Nov 4, 2026	5,001-10,000	6,580 contacts →
	Exact match “Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2	TAX Consultant	Exact match	Brighton, United KingdomHQ recorded Nov 4, 2026	n/a	2,211 contacts →
	Exact match “A traditional general practice, with a twist.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3	DMA	Exact match	Fort Wayne, OH, United StatesHQ recorded Nov 4, 2026	501-1,000	984 contacts →
	Exact match “Great Place to Work® Certified™ DMA, a proudly employee-owned company, has been solving corporate tax challenges for its clients since 1972.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4	WTS Deutschland	Exact match	Munich, GermanyHQ recorded Nov 4, 2026	1,001-5,000	905 contacts →
	Exact match “WTS ist ein globaler Full-Service Anbieter für Steuerberatungsleistungen und Financial & Deal Advisory.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5	WIPRO	Exact match	Valencia, SpainHQ recorded Nov 4, 2026	n/a	832 contacts →
	Exact match “En Wipro impulsamos el progreso.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6	Chevez	Exact match	Mexico City, MexicoHQ recorded Nov 4, 2026	501-1,000	740 contacts →
	Exact match “Chevez Ruiz Zamarripa, es una firma especializada en la Asesoría y Consultoría Fiscal de alto nivel, que se distingue por prestar servicios personalizados con total…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7	Smith Howard	Exact match	Atlanta, GA, United StatesHQ recorded Nov 4, 2026	501-1,000	505 contacts →
	Exact match “Smith + Howard is a tax, accounting, advisory, and consulting firm headquartered in Atlanta, with a global presence.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8	Knowcraft Analytics	Exact match	Chicago, IL, United StatesHQ recorded Nov 4, 2026	201-500	431 contacts →
	Exact match “Knowcraft Analytics is engaged in providing valuation, advisory, accounting, and taxation services to US and Canada-based consulting and advisory firms.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9	Apercen Partners LLC	Exact match	Palo Alto, CA, United StatesHQ recorded Nov 4, 2026	201-500	427 contacts →
	Exact match “Originating from the English and Latin roots of “apercu,” an act of insight, and “census,” an applied study of wealth and property, Apercen is a tax consulting firm offering high…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
10	Cohesive	Exact match	Exton, GA, United StatesHQ recorded Nov 4, 2026	501-1,000	386 contacts →
	Exact match “Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
11	Ecovis Deutschland	Exact match	Berlin, GermanyHQ recorded Nov 4, 2026	1,001-5,000	351 contacts →
	Exact match “Wir bei Ecovis sind Steuerberater, Wirtschaftsprüfer, Rechtsanwälte und Unternehmensberater.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12	Felix Advisory Private Limited	Exact match	Gurgaon, IndiaHQ recorded Nov 4, 2026	201-500	320 contacts →
	Exact match “Felix Advisory is one of the leading providers of tax & regulatory services, risk, transaction, financial & business advisory, internal audit, and corporate governance services in…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
13	Taxprime	Exact match	Jakarta Selatan, IndonesiaHQ recorded Nov 4, 2026	201-500	307 contacts →
	Exact match “TaxPrime is a Tax Consulting Firm, based in Jakarta, the Capital City of Indonesia.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14	GTM Global TAX Management	Exact match	Wayne, OH, United StatesHQ recorded Nov 4, 2026	201-500	294 contacts →
	Exact match “GTM is a leading provider of corporate tax services.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15	Transaction Square	Exact match	Mumbai, IndiaHQ recorded Nov 4, 2026	201-500	278 contacts →
	Exact match “Transaction Square is a Tax, Regulatory and Business Advisory firm founded by entrepreneurial Big-4 Partners having collective advisory experience spanning over 3 decades.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16	Atoz TAX Advisers	Exact match	Senningerberg, LuxembourgHQ recorded Nov 4, 2026	51-200	258 contacts →
	Exact match “We are a high-end independent advisory firm offering a comprehensive and integrated range of direct and indirect tax solutions, as well as corporate finance, transfer pricing and…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17	Mayatax	Exact match	Houston, TX, United StatesHQ recorded Nov 4, 2026	501-1,000	251 contacts →
	Exact match “Growth exposes financial weakness.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
18	Garrido Licona Y Asociados S.C	Exact match	México, MexicoHQ recorded Nov 4, 2026	201-500	248 contacts →
	Exact match “Nuestra misión es brindar asesoría fiscal, legal, financiera y de negocios a empresas nacionales e internacionales y nos caracterizamos por lograr “Resultados Óptimos” y brindar…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
19	Kpmg Acor TAX	Exact match	2900 Hellerup, DenmarkHQ recorded Nov 4, 2026	201-500	242 contacts →
	Exact match “KPMG ACOR TAX is a full-service tax consultancy firm.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
20	Source Advisors	Exact match	Arlington, TX, United StatesHQ recorded Nov 4, 2026	51-200	242 contacts →
	Exact match “At Source Advisors, relationships matter.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
21	KE Andrews	Exact match	Dallas, TX, United StatesHQ recorded Nov 4, 2026	201-500	234 contacts →
	Exact match “In operation since 1978, KE Andrews is one of the largest state and local tax firms in the country, managing over $500 billion in assets.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
22	TAX Consulting South Africa	Exact match	Bryanston, South AfricaHQ recorded Nov 4, 2026	51-200	229 contacts →
	Exact match “Tax advisory and compliance in South Africa is our niche expertise.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
23	Aeka Advisors	Exact match	Bangalore, IndiaHQ recorded Nov 4, 2026	51-200	224 contacts →
	Exact match “Aeka symbolises integrity, unity and wholeness.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
24	Arsene Taxand	Exact match	Paris, FranceHQ recorded Nov 4, 2026	51-200	219 contacts →
	Exact match “Created in 2004, ARSENE TAXAND offers a cutting edge service in all the firm’s main areas of activity.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
25	ADS Allgemeine Deutsche Steuerberatungsgesellschaft MBH	Exact match	Hamburg, GermanyHQ recorded Nov 4, 2026	501-1,000	206 contacts →
	Exact match “Die ADS Steuer.Beratung ist Ihr spezialisierter Partner für ganzheitliche Steuerberatung – exklusiv für Unternehmen.” Recorded in the RevenueBase company graph · Nov 4, 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 tax specialists”. 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 9,318 oil and gas tax specialists worldwide

See the full list, filter by size, metro and specialty, and access 21,168 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas tax specialists worldwide at a glance

As of Nov 4, 2026

31.1%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · Sao Paulo

Nov 4, 2026Page data refreshed

Companies by employee count

1-10

5,481

11-50

2,964

51-200

465

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 tax specialists are linked below.
What qualifies: Company records worldwide whose business descriptions match “oil and gas tax specialists” 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 21,168 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 4, 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 tax specialists by location

46 lists · largest first

Every Oil and gas tax specialists list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 tax specialists”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas tax specialists are there worldwide?

RevenueBase identified 9,318 company matches for oil and gas tax specialists worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

RYAN 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 tax specialists?

Germany leads with 2,343 companies, followed by the United States (1,241) and Brazil (865). Every oil and gas tax specialists list by country and city is linked on this page.

Which city has the most oil and gas tax specialists?

Sao Paulo leads with 203 company records, followed by Berlin (137) and Munich (100).

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 21,168 professional contacts with verified work emails tracked across these 9,318 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 4, 2026.

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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.