Company lists · Data refreshed September 2026

Top 25 IT company for accounting firms worldwide

RevenueBase identified 35,736 IT company for accounting firms worldwide as of September 2026 and tracks 315,301 professional contacts across them, including 115,198 with verified work emails and 48,583 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers IT company for accounting 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 26, 2026. Country and city lists for IT company for accounting 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 26, 2026 86% judged on-target in blind review
35,736Companies
315,301Contacts tracked
115,198Verified emails
48,583Mobile numbers
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The 25 largest IT company for accounting firms worldwide

Ranked by team size
Top 25 of 35,736 IT company for accounting firms worldwide, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to IT company for accounting 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 evidenceCalgary, AB, CanadaHQ checked Sep 26, 20265,001-10,0008,773 contacts →

Partial evidence

“MNP is a leading national accounting, tax and business consulting firm in Canada.”

Source: RevenueBase Database · checked Sep 26, 2026
2Indirect evidenceParis La Défense, FranceHQ checked Sep 26, 202610001+5,839 contacts →

Indirect evidence

“Leader de l'audit, du conseil et de l'expertise comptable, KPMG France est membre de KPMG International, réseau de cabinets indépendants exerçant dans 155 pays.”

Source: RevenueBase Database · checked Sep 26, 2026
3Indirect evidenceOslo, NorwayHQ checked Sep 26, 20261,001-5,0001,530 contacts →

Indirect evidence

“We see great value in having a local presence and roots, factors which enable us to work closely with our clients.”

Source: RevenueBase Database · checked Sep 26, 2026
4Indirect evidenceQuébec, QC, CanadaHQ checked Sep 26, 20261,001-5,0001,268 contacts →

Indirect evidence

“Mallette compte plus de 40 bureaux solidement implantés dans plusieurs régions du Québec et regroupe plus de 1 600 ressources œuvrant dans différents secteurs d’activité.”

Source: RevenueBase Database · checked Sep 26, 2026
5Indirect evidenceRecife, BrazilHQ checked Sep 26, 2026501-1,000833 contacts →

Indirect evidence

“A Bernhoeft Contadores é uma empresa de atuação nacional que oferece terceirização de serviços contábeis para clientes de diversos portes e segmentos.”

Source: RevenueBase Database · checked Sep 26, 2026
6Indirect evidenceOrléans, FranceHQ checked Sep 26, 20261,001-5,000800 contacts →

Indirect evidence

“Pour ORCOM, le conseil est un état d'esprit.”

Source: RevenueBase Database · checked Sep 26, 2026
7Indirect evidenceVäxjö, SwedenHQ checked Sep 26, 2026501-1,000785 contacts →

Indirect evidence

“Fortnox är Sveriges ledande leverantör av internetbaserade program för företag, föreningar samt redovisnings- och revisionsbyråer.”

Source: RevenueBase Database · checked Sep 26, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 26, 2026501-1,000702 contacts →

Indirect evidence

“We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.”

Source: RevenueBase Database · checked Sep 26, 2026
9Indirect evidenceExeter, United KingdomHQ checked Sep 26, 2026501-1,000700 contacts →

Indirect evidence

“Any good accountancy firm can help with your finance, audit, and tax.”

Source: RevenueBase Database · checked Sep 26, 2026
10Indirect evidenceLuxembourgHQ checked Sep 26, 2026501-1,000600 contacts →

Indirect evidence

“BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.”

Source: RevenueBase Database · checked Sep 26, 2026
11Partial evidenceMelbourne, AustraliaHQ checked Sep 26, 2026501-1,000592 contacts →

Partial evidence

“Moore Australia is a network of five independent accounting, audit and advisory firms with 13 offices and 600+ staff across Australia.”

Source: RevenueBase Database · checked Sep 26, 2026
12Partial evidenceTel Aviv, IsraelHQ checked Sep 26, 20261,001-5,000574 contacts →

Partial evidence

“BDO Israel is a dynamic and business oriented accounting and consulting firm, ranking amongst the five leading industry firms in Israel and part of the international network BDO.”

Source: RevenueBase Database · checked Sep 26, 2026
13Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 26, 2026201-500558 contacts →

Indirect evidence

“Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.”

Source: RevenueBase Database · checked Sep 26, 2026
14Indirect evidenceSao Paulo, BrazilHQ checked Sep 26, 2026201-500536 contacts →

Indirect evidence

“Fundada em 1987, a CONTMATIC PHOENIX é uma Empresa em grande expansão nacional especializada no desenvolvimento de Softwares Administrativos, oferecendo soluções necessárias e…”

Source: RevenueBase Database · checked Sep 26, 2026
15Indirect evidenceSaint-herblain, FranceHQ checked Sep 26, 2026201-500522 contacts →

Indirect evidence

“RCA, éditeur de solutions pour l'expertise comptable.”

Source: RevenueBase Database · checked Sep 26, 2026
16Indirect evidenceLeuven, BelgiumHQ checked Sep 26, 2026501-1,000515 contacts →

Indirect evidence

“Welcome to SBB, a firm of experienced accountants and tax consultants with 30 branches in Belgium.”

Source: RevenueBase Database · checked Sep 26, 2026
17Indirect evidenceStockholm, SwedenHQ checked Sep 26, 2026501-1,000505 contacts →

Indirect evidence

“BDO – en global byrå med nöjdast kunder i revisionsbranschen BDO är en revisions- och rådgivningsbyrå som finns med dig hela vägen.”

Source: RevenueBase Database · checked Sep 26, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 26, 20261,001-5,000505 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 26, 2026
19Partial evidenceBrazilHQ checked Sep 26, 2026n/a485 contacts →

Partial evidence

“Accounting and Tax Department”

Source: RevenueBase Database · checked Sep 26, 2026
20Partial evidenceHarrow, United KingdomHQ checked Sep 26, 2026201-500477 contacts →

Partial evidence

“Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.”

Source: RevenueBase Database · checked Sep 26, 2026
21Indirect evidenceParis, FranceHQ checked Sep 26, 2026n/a474 contacts →

Indirect evidence

“La FED est une société d’expertise-comptable avec une mission précise : accompagner les entrepreneurs,favoriser leur réussite.Grâce à nos valeurs, nous bâtissons une relation de…”

Source: RevenueBase Database · checked Sep 26, 2026
22Indirect evidenceBom Retiro, BrazilHQ checked Sep 26, 2026201-500451 contacts →

Indirect evidence

“A SCI é uma empresa brasileira de tecnologia que trabalha exclusivamente para o mercado contábil, iniciou as suas atividades em 1991.”

Source: RevenueBase Database · checked Sep 26, 2026
23Indirect evidenceSão Paulo, BrazilHQ checked Sep 26, 2026201-500440 contacts →

Indirect evidence

“A PP & C Auditores Independentes é uma firma de auditores e especialistas nas áreas de impostos e consultoria empresarial.”

Source: RevenueBase Database · checked Sep 26, 2026
24Indirect evidenceSheffield, United KingdomHQ checked Sep 26, 2026201-500409 contacts →

Indirect evidence

“BHP is one of the largest firms of chartered accountants in Yorkshire, providing high-quality assurance, advisory, corporate finance and tax services.”

Source: RevenueBase Database · checked Sep 26, 2026
25Strong evidenceOttawa, ON, CanadaHQ checked Sep 26, 2026201-500399 contacts →

Strong evidence

“Welch LLP is a Chartered Public Accounting firm that has deep roots in the communities it serves.”

Source: RevenueBase Database · checked Sep 26, 2026

Showing 25 of 35,736 IT company for accounting firms worldwide

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IT company for accounting firms worldwide at a glance

As of Sep 26, 2026
36.5%Verified-email coverage
15.4%Mobile-number coverage
8.8Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · Sao Paulo
Sep 26, 2026Page data refreshed

Companies by employee count

1-10
23,253
11-50
10,259
51-200
1,616
201-500
234
501-1,000
64
1,001-5,000
54
5,001-10,000
4
10001+
6

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 IT company for accounting 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
39 countries, largest first: the United States, Brazil, the United Kingdom, France, Canada, Australia, the Netherlands, South Africa, Italy, Sweden and 29 more. Country and city lists for IT company for accounting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “IT company for accounting 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 IT company for accounting 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 IT company for accounting 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, 115,198 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 26, 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.

IT company for accounting firms by location

143 lists · largest first

Every IT company for accounting 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 IT company for accounting 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 IT company for accounting firms are there worldwide?

RevenueBase identified 35,736 IT company for accounting 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?

MNP, headquartered in Calgary, tops this list with the largest team on record.

Which country has the most IT company for accounting firms?

The United States leads with 10,474 companies, followed by Brazil (7,002) and the United Kingdom (4,029). Every IT company for accounting firms list by country and city is linked on this page.

Which city has the most IT company for accounting firms?

Sao Paulo leads with 1110 headquartered companies, followed by London (768) and Paris (385).

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 115,198 verified decision-maker contacts tracked across these 35,736 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 26, 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.