Company lists · Data refreshed September 2026

Top 25 Tax credit consulting firms worldwide

RevenueBase identified 5,483 tax credit consulting firms worldwide as of September 2026 and tracks 32,538 professional contacts across them, including 9,554 with verified work emails. Germany is the largest market and Sao Paulo the largest hub.

This list covers tax credit consulting firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for tax credit consulting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
5,483Companies
32,538Contacts tracked
9,554Verified emails
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The 25 largest tax credit consulting firms worldwide

Ranked by team size
Top 25 of 5,483 tax credit consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to tax credit consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceIssy-les-moulineaux, FranceHQ checked Sep 29, 20261,001-5,0003,143 contacts →

Partial evidence

“We are an international consulting firm that helps businesses leverage financial incentives to boost their growth and achieve long-lasting performance.”

Source: RevenueBase Database · checked Sep 29, 2026
2Strong evidencePasadena, CA, United StatesHQ checked Sep 29, 2026n/a657 contacts →

Strong evidence

“CCG is a national tax credit consulting firm serving companies ranging in size from the middle market to the Fortune 100.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidencePorto Alegre, BrazilHQ checked Sep 29, 2026201-500538 contacts →

Indirect evidence

“A Studio Fiscal é uma rede de franquia especializada na prestação de serviços de auditoria fiscal e planejamento tributário.”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidencePalo Alto, CA, United StatesHQ checked Sep 29, 2026201-500399 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
5Strong evidenceJakarta Selatan, IndonesiaHQ checked Sep 29, 2026201-500269 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceCalgary, AB, CanadaHQ checked Sep 29, 2026201-500260 contacts →

Indirect evidence

“For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidence2900 Hellerup, DenmarkHQ checked Sep 29, 2026201-500232 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceArlington, TX, United StatesHQ checked Sep 29, 202651-200223 contacts →

Indirect evidence

“At Source Advisors, relationships matter.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceSterling, VA, United StatesHQ checked Sep 29, 2026201-500216 contacts →

Indirect evidence

“AOTAX is a leading U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceFlorence, SC, United StatesHQ checked Sep 29, 2026201-500214 contacts →

Strong evidence

“Synergi specializes in processing federal and state tax credits for employers across the United States and Puerto Rico.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceHamburg, GermanyHQ checked Sep 29, 2026501-1,000198 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceDraper, UT, United StatesHQ checked Sep 29, 2026201-500184 contacts →

Indirect evidence

“Stop overpaying the IRS and start fueling your business passions.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidencePasadena, CA, United StatesHQ checked Sep 29, 202651-200178 contacts →

Strong evidence

“Established in with offices across the US, KBKG has helped businesses and their CPAs unlock over $11 billion of tax credits and incentives.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 29, 2026201-500159 contacts →

Indirect evidence

“Com atuação desde 1988, a Fradema Consultores Tributários possui forte atuação no contexto judicial e administrativo nas esferas federal, estadual e municipal, com sedes em todo o…”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceSao Paulo, BrazilHQ checked Sep 29, 202651-200145 contacts →

Indirect evidence

“A Certacon nasceu da união de profissionais altamente experientes aliado aos melhores e mais completos softwares do mercado, com o propósito de prestar serviços nas áreas…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceFresno, CA, United StatesHQ checked Sep 29, 202651-200133 contacts →

Partial evidence

“Boos & Associates, a Professional Corporation is a regional certified public accounting and consulting firm.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceCuritiba, BrazilHQ checked Sep 29, 202651-200133 contacts →

Indirect evidence

“Somos a Tributo Justo.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceDes Moines, IA, United StatesHQ checked Sep 29, 2026501-1,000130 contacts →

Indirect evidence

“Our mission is to assist eligible small and medium-sized businesses in attaining cash incentives from federal and state governments.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceCiudad De México, MexicoHQ checked Sep 29, 2026501-1,000125 contacts →

Indirect evidence

“We are a consolidated firm of certified public accountants, lawyers and consultants with national and international presence.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 29, 202651-200124 contacts →

Indirect evidence

“A BMS Consultoria Tributária é um escritório boutique com 15 anos de experiência em auditoria e consultoria fiscal, especializada na redução de custos, vem para somar e gerar…”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceNew York, CA, United StatesHQ checked Sep 29, 2026501-1,000116 contacts →

Strong evidence

“ERTC Express is a tax consulting firm providing expert assistance to small business clients around the Employee Retention Tax Credit.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceBristol, United KingdomHQ checked Sep 29, 202651-200112 contacts →

Indirect evidence

“ForrestBrown is an award-winning incentives and reliefs specialist.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceWest Palm Beach, FL, United StatesHQ checked Sep 29, 2026201-500107 contacts →

Partial evidence

“Engineered Tax Services, Inc.(ETS) is a licensed engineering firm that focuses on federal, state, and local tax benefits.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceCuritiba, BrazilHQ checked Sep 29, 202651-200105 contacts →

Indirect evidence

“Fazemos análises de viabilidade dos regimes tributários e procuramos sempre a melhor solução para a sua empresa visando a redução de tributos com base legal.”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceSheridan, WY, United StatesHQ checked Sep 29, 202651-200102 contacts →

Strong evidence

“There are many companies that offer tax credit and incentive consulting services.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 5,483 tax credit consulting firms worldwide

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Tax credit consulting firms worldwide at a glance

As of Sep 29, 2026
29.4%Verified-email coverage
5.9Average contacts per company
1-10Median size (employees)
2.8%Largest-city concentration · Sao Paulo
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
3,251
11-50
1,784
51-200
269
201-500
40
501-1,000
12
1,001-5,000
5
5,001-10,000
1
10001+
3

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among tax credit consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for tax credit consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “tax credit consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names tax credit consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among tax credit consulting firms, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 9,554 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Tax credit consulting firms by location

22 lists · largest first

Every Tax credit consulting firms 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names tax credit consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many tax credit consulting firms are there worldwide?

RevenueBase identified 5,483 tax credit consulting firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Leyton, headquartered in Issy-Les-Moulineaux, tops this list with the largest team on record.

Which country has the most tax credit consulting firms?

Germany leads with 1,571 companies, followed by the United States (1,190) and Brazil (666). Every tax credit consulting firms list by country and city is linked on this page.

Which city has the most tax credit consulting firms?

Sao Paulo leads with 152 headquartered companies, followed by Berlin (95) and Hamburg (54).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 9,554 verified decision-maker contacts tracked across these 5,483 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.