Company lists · Data refreshed November 2026

Top 25 Bookkeeping and tax services worldwide

Name: Bookkeeping and tax services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 50,778 companies tracked

RevenueBase identified 50,778 company matches for bookkeeping and tax services worldwide as of November 2026 and tracks 294,917 professional contacts across them, including 62,762 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for bookkeeping and 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 bookkeeping and 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

50,778Companies

294,917Contacts tracked

62,762Verified emails

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The 25 largest bookkeeping and tax services worldwide

Ranked by team size

Top 25 of 50,778 company matches for bookkeeping and 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	H&r Block	Exact match	Kansas City, MO, United StatesHQ recorded Nov 6, 2026	10001+	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
2	Block Advisors	Exact match	Kansas City, MO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,450 contacts →
	Exact match “We are Block Advisors by H&R Block.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	KMK	Exact match	Ahmedabad, IndiaHQ recorded Nov 6, 2026	1,001-5,000	829 contacts →
	Exact match “KMK Ventures is a leading Outsourced Accounting & Tax solutions company providing services to clients based out of USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Taxassist Accountants	Exact match	Norwich, United KingdomHQ recorded Nov 6, 2026	201-500	752 contacts →
	Exact match “At TaxAssist Accountants we specialise in providing accountancy services, tax returns, payroll, bookkeeping, tax savings and tax advice to small businesses and support over…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	KUMAR	Exact match	n/a	1,001-5,000	638 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Share Microfin LTD	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	1,001-5,000	554 contacts →
	Exact match “Share Microfin Ltd is an Accounting company located in 1-224/58, Rajeev Nagar, Nacharam, Hyderabad, Andhra Pradesh, India.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Outbooks	Exact match	Harrow, United KingdomHQ recorded Nov 6, 2026	201-500	490 contacts →
	Exact match “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	H&r Block Australia	Exact match	Thornleigh, AustraliaHQ recorded Nov 6, 2026	501-1,000	463 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
9	Cohesive	Exact match	Exton, GA, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
10	Administratiekantoor Tidak B.V	Exact match	Alphen Aan Den Rijn, NetherlandsHQ recorded Nov 6, 2026	n/a	383 contacts →
	Exact match “Tidak in Alphen aan den Rijn is het administratiekantoor voor startende ondernemers, zzp'ers, mkb en particulieren.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Bench Accounting By Mainstreet	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	201-500	368 contacts →
	Exact match “At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Advantage ONE TAX Consulting	Exact match	Sterling, VA, United StatesHQ recorded Nov 6, 2026	201-500	360 contacts →
	Exact match “Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Oremus Corporate Services	Exact match	Hyderabad, IN, IndiaHQ recorded Nov 6, 2026	201-500	303 contacts →
	Exact match “At Oremus Corporate Services, we specialize in delivering top-notch Accounting and Bookkeeping, Secretarial Compliance, Payroll, Tax, HR, and Business Advisory Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	FBC Farm And Small Business TAX Consultants	Exact match	Calgary, ON, CanadaHQ recorded Nov 6, 2026	201-500	270 contacts →
	Exact match “For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Mercurius Advisory Services	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	201-500	268 contacts →
	Exact match “Mercurius Advisory Services (MAS) provides comprehensive suite of accounting, bookkeeping and taxation services to small, medium and large enterprises.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Mayatax	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	251 contacts →
	Exact match “Growth exposes financial weakness.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Small Business Services	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	n/a	241 contacts →
	Exact match “Founded in 1990 in Atlanta, Georgia, Small Business Services is part of LedgerWay, a tax, accounting, and advisory firm built for small businesses and entrepreneurs who are…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Aone Outsourcing Solutions PVT LTD	Exact match	Ghaziabad, IndiaHQ recorded Nov 6, 2026	501-1,000	216 contacts →
	Exact match “Aone is one of the leading global accounting, bookkeeping, tax and year end accounts preparation service provider in India.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Accounting & TAX Services	Exact match	United StatesHQ recorded Nov 6, 2026	n/a	213 contacts →
	Exact match “Since 1982, ATS has been a leader in providing quality tax, accounting and financial services to small businesses and individuals.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Platinum Accounting Australia	Exact match	Surry Hills, AustraliaHQ recorded Nov 6, 2026	n/a	208 contacts →
	Exact match “Platinum Accounting Australia provides tax returns, tax advice, accounting, bookkeeping, asset consulting, investment governance and portfolio management for individuals…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Fiduciaire	Exact match	Beaufays, BelgiumHQ recorded Nov 6, 2026	n/a	208 contacts →
	Exact match “Bonjour et bienvenue sur la page entreprise de la Fiduciaire au Carré - Une équipe dynamique à votre service- Assistance efficace et conseils individualisés tant aux personnes…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Contec Contabilidade	Exact match	Sumaré, BrazilHQ recorded Nov 6, 2026	n/a	202 contacts →
	Exact match “Desde 1971 a Contec é responsavel pela assessoria contabil e tributaria de diversas empresas da região metropolitana de Campinas e demais cidades vizinhas, construindo ao longo do…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Oficina Contable HTO	Exact match	Viña Del Mar, ChileHQ recorded Nov 6, 2026	n/a	196 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
24	Larson Gross	Exact match	Bellingham, WA, United StatesHQ recorded Nov 6, 2026	201-500	194 contacts →
	Exact match “Larson Gross is a full-service firm providing comprehensive accounting, bookkeeping, tax, and consulting services to clients throughout the United States and Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Porte Brown LLC	Exact match	Elk Grove Village, IL, United StatesHQ recorded Nov 6, 2026	51-200	194 contacts →
	Exact match “Porte Brown LLC is a full service accounting and consulting firm headquartered in the Chicago suburb of Elk Grove Village, Illinois.” Recorded in the RevenueBase company graph · Nov 6, 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 “bookkeeping and tax services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 50,778 bookkeeping and tax services worldwide

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Bookkeeping and tax services worldwide at a glance

As of Nov 6, 2026

21.3%Verified-email coverage

5.8Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

39,520

11-50

8,966

51-200

930

201-500

126

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 bookkeeping and tax services are linked below.
What qualifies: Company records worldwide whose business descriptions match “bookkeeping and 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 62,762 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.

Bookkeeping and tax services by location

215 lists · largest first

Every Bookkeeping and 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 “bookkeeping and tax services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many bookkeeping and tax services are there worldwide?

RevenueBase identified 50,778 company matches for bookkeeping and 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 bookkeeping and tax services?

The United States leads with 18,563 companies, followed by the United Kingdom (4,123) and Brazil (2,851). Every bookkeeping and tax services list by country and city is linked on this page.

Which city has the most bookkeeping and tax services?

London leads with 730 company records, followed by Sao Paulo (394) and New York (388).

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 62,762 professional contacts with verified work emails tracked across these 50,778 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.