Company lists · Data refreshed November 2026

Top 25 Dual citizen tax services worldwide

RevenueBase identified 8,115 company matches for dual citizen tax services worldwide as of November 2026 and tracks 106,240 professional contacts across them, including 16,325 with verified work emails. Germany is the largest market and Berlin the largest hub.

This list covers company matches for dual citizen tax services 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 6, 2026. Country and city lists for dual citizen tax services 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 6, 2026 How this list was built
8,115Companies
106,240Contacts tracked
16,325Verified emails
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The 25 largest dual citizen tax services worldwide

Ranked by team size
Top 25 of 8,115 company matches for dual citizen tax services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchKansas City, MO, United StatesHQ recorded Nov 6, 202610001+64,430 contacts →

Exact match

“H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBrighton, United KingdomHQ recorded Nov 6, 2026n/a2,211 contacts →

Exact match

“A traditional general practice, with a twist.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMexico City, MexicoHQ recorded Nov 6, 2026501-1,000740 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 6, 2026 · View company records in RevenueBase
4Exact matchThornleigh, AustraliaHQ recorded Nov 6, 2026501-1,000463 contacts →

Exact match

“As Australia’s largest preparer of personal income tax returns, with over 400 offices across Australia, expert help is never far away.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNeustadt An Der Weinstrasse, GermanyHQ recorded Nov 6, 20261,001-5,000389 contacts →

Exact match

“Deutschlands Nr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchExton, GA, United StatesHQ recorded Nov 6, 2026501-1,000386 contacts →

Exact match

“Cohesive is a leading solutions provider and systems integrator for IBM Maximo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchJakarta Selatan, IndonesiaHQ recorded Nov 6, 2026201-500307 contacts →

Exact match

“TaxPrime is a Tax Consulting Firm, based in Jakarta, the Capital City of Indonesia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSterling, VA, United StatesHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“AOTAX is a leading U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact match2900 Hellerup, DenmarkHQ recorded Nov 6, 2026201-500242 contacts →

Exact match

“KPMG ACOR TAX is a full-service tax consultancy firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Nov 6, 202651-200219 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 6, 2026 · View company records in RevenueBase
11Exact matchHamburg, GermanyHQ recorded Nov 6, 2026501-1,000206 contacts →

Exact match

“Die ADS Steuer.Beratung ist Ihr spezialisierter Partner für ganzheitliche Steuerberatung – exklusiv für Unternehmen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchViña Del Mar, ChileHQ recorded Nov 6, 2026n/a196 contacts →

Exact match

“Oficina contable que se caracteriza por el profesionalismo de sus integrantes, la rápida solución a los problemas que se presenten y la atención que presta a sus clientes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchToronto, CanadaHQ recorded Nov 6, 202651-200172 contacts →

Exact match

“Trowbridge Professional Corporation is a long established global accounting firm that provides a wide range of personal and corporate tax services, specializing in international…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchUnited StatesHQ recorded Nov 6, 2026201-500135 contacts →

Exact match

“Expat US Tax helps US citizens and Green Card holders living and working abroad, with a focus on Australia, the UK and the Middle East.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNew York, TX, United StatesHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“Advisory & Tax Services With 14 Offices in the USA, located in Atlanta, Boston, Chicago, Dallas, Fort Lauderdale, Houston, Los Angeles, Miami, New York, Orlando, Palo Alto, San…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPlano, CA, United StatesHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“At MyTaxFiler, we offer more than just tax preparation-we provide peace of mind.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchChicago, MO, United StatesHQ recorded Nov 6, 2026501-1,000112 contacts →

Exact match

“Archer Lewis is your local trusted advisor for accounting and tax services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchChennai, IndiaHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Ventura Pranas is a cross-border advisory firm providing specialised solutions to individuals and companies across the US, India, and Singapore.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCoral Gables, FL, United StatesHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“AbitOs specializes in the unique accounting and tax needs of high net-worth individuals with international lifestyles, LATAM, Canadian, and other non-US entities doing business in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchUnited StatesHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“Crescent Tax Filing, Inc- Your Trusted Partner in US #Tax Services for Over 7 Years Welcome to Crescent Tax Filing, Inc, your go-to destination for comprehensive US Tax…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchDarmstadt, GermanyHQ recorded Nov 6, 20261,001-5,00093 contacts →

Exact match

“Der Steuerring e.V.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSunrise, NV, United StatesHQ recorded Nov 6, 2026201-50091 contacts →

Exact match

“Neil Jesani Tax Advisors, Inc.(NJA) provides a full suite of tax, compliance, accounting, resolution and advisory services, drawing on extensive industry knowledge to serve high…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMumbai, IndiaHQ recorded Nov 6, 202611-5089 contacts →

Exact match

“We are a team of Professionals, including Chartered Accountants, Certified Public Accountants, Company Secretaries, Management Professionals who work closely with our clients and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“Reduza sua carga tributária e seu passivo fiscal.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-5088 contacts →

Exact match

“Colbert/Ball Tax Service understands that whenever a customer visits their location for service, the client will be immediately assisted by a trained professional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 8,115 dual citizen tax services worldwide

See the full list, filter by size, metro and specialty, and access 16,325 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Dual citizen tax services worldwide at a glance

As of Nov 6, 2026
15.4%Verified-email coverage
13.1Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
5,333
11-50
2,091
51-200
265
201-500
35
501-1,000
15
1,001-5,000
11
5,001-10,000
1
10001+
3

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 dual citizen tax services are linked below.
What qualifies
Company records worldwide whose business descriptions match “dual citizen tax 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. 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 16,325 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Dual citizen tax services by location

36 lists · largest first

Every Dual citizen tax services 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 “dual citizen tax services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many dual citizen tax services are there worldwide?

RevenueBase identified 8,115 company matches for dual citizen tax services 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?

H&r Block tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most dual citizen tax services?

Germany leads with 2,127 companies, followed by the United States (2,041) and the Netherlands (370). Every dual citizen tax services list by country and city is linked on this page.

Which city has the most dual citizen tax services?

Berlin leads with 123 company records, followed by Munich (95) and Hamburg (78).

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 16,325 professional contacts with verified work emails tracked across these 8,115 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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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.