Company lists · Data refreshed September 2026

Top 25 Accounting software integration firms worldwide

RevenueBase identified 6,120 company matches for accounting software integration firms worldwide as of September 2026 and tracks 54,397 professional contacts across them, including 15,467 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers company matches for accounting software integration firms 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 September 27, 2026. Country and city lists for accounting software integration firms 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 Sep 27, 2026 How this list was built
6,120Companies
54,397Contacts tracked
15,467Verified emails
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The 25 largest accounting software integration firms worldwide

Ranked by team size
Top 25 of 6,120 company matches for accounting software integration firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchCampinas, BrazilHQ recorded Sep 27, 20261,001-5,000828 contacts →

Exact match

“A IOB une Inteligência em legislação e Tecnologia avançada para resolver os desafios do presente e do futuro de contadores e de empresas de todos os portes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchVäxjö, SwedenHQ recorded Sep 27, 2026501-1,000785 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchSaint-herblain, FranceHQ recorded Sep 27, 2026201-500522 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchHarrow, United KingdomHQ recorded Sep 27, 2026201-500477 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchCentral Business District, SingaporeHQ recorded Sep 27, 2026201-500457 contacts →

Exact match

“Expert accountants + simple software = financial admin, done.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchBom Retiro, BrazilHQ recorded Sep 27, 2026201-500451 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026201-500364 contacts →

Exact match

“Karbon is the collaborative practice management platform for accounting firms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchMontréal, QC, CanadaHQ recorded Sep 27, 20261,001-5,000353 contacts →

Exact match

“A leader in the Canadian IT industry, ACCEO Solutions Inc.(“ACCEO”) specializes in the design, implementation, integration, and support of management and accounting solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchSt Petersburg, FL, RussiaHQ recorded Sep 27, 202651-200341 contacts →

Exact match

“It's time to experience the ONLY automated bookkeeping solution purpose-built for Accounting Firms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchCheyenne, WY, United StatesHQ recorded Sep 27, 2026201-500340 contacts →

Exact match

“TaxDome is the leading practice management platform built for full-service tax, bookkeeping, and accounting firms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchDel Mar, CA, United StatesHQ recorded Sep 27, 2026201-500331 contacts →

Exact match

“CARET brings the latest in technology and automation to over legal and accounting firms, empowering highly skilled professionals to refocus their expertise on what truly matters.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500324 contacts →

Exact match

“For over 15 years, Makosi has been redefining what’s possible in the accounting and audit industry with cutting-edge, tech-powered workforce solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500320 contacts →

Exact match

“1-800Accoutant is America’s leading virtual accounting firm for small businesses.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSan Diego, CA, United StatesHQ recorded Sep 27, 202651-200307 contacts →

Exact match

“Founded in 1984 in San Diego, DSD Business Systems is an award-winning technology partner with 45 offices across North America, serving small- to medium-sized organizations.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000304 contacts →

Exact match

“Here at Aptitude, we provide software solutions to enable deliver fully autonomous finance so our customers can drive growth, efficiency and sustainability.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchSao Paulo, BrazilHQ recorded Sep 27, 2026201-500298 contacts →

Exact match

“Desde 1986 a Prosoft desenvolve softwares para apoiar empresários contábeis a aconselhar seus clientes com rapidez, precisão e eficiência.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchSouth Jordan, UT, United StatesHQ recorded Sep 27, 2026201-500290 contacts →

Exact match

“Canopy is the all-in-one practice management platform built to help accounting firms simplify operations, delight clients, and drive firm-wide growth.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchArnhem, NetherlandsHQ recorded Sep 27, 20261,001-5,000277 contacts →

Exact match

“Accon avm wordt Flynth.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchTours, FranceHQ recorded Sep 27, 2026201-500274 contacts →

Exact match

“ACD est un groupe français et indépendant, fort de plus de 40 ans d’expérience 🦖 au service de la profession comptable, avec une vision claire : proposer une offre flexible…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchRiyadh, Saudi ArabiaHQ recorded Sep 27, 202651-200250 contacts →

Exact match

“تأسست قيود عام 2016 بهدف تسهيل الأعمال، وتقديم أفضل تجربة لأعمالهم من خلال تقديم نظام محاسبي سهل واحترافي، بالإضافة إلى حلول مالية ابتكارية لمساعدة أصحاب الأعمال على تنمية أعمالهم…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchNew Delhi, IndiaHQ recorded Sep 27, 2026201-500249 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 · Sep 27, 2026 · View company records in RevenueBase
22Exact matchLyon, FranceHQ recorded Sep 27, 2026201-500227 contacts →

Exact match

“Chez nous accompagnons les experts-comptables dans la transformation de leur métier en mettant à leur disposition une diversité d'outils performants, collaboratifs et sécurisés…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchHyderabad, United StatesHQ recorded Sep 27, 2026201-500220 contacts →

Exact match

“Sentient is a wholly owned GCC of Ascend Partners, a Top 25 US Public Accounting platform.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchNavi Mumbai, IndiaHQ recorded Sep 27, 2026201-500220 contacts →

Exact match

“Greytrix, with a robust global presence spanning over 50+ countries and serving clients, has honed its technical prowess in providing cutting-edge Business Management Solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchEast Hanover, NJ, United StatesHQ recorded Sep 27, 2026201-500217 contacts →

Exact match

“Imagine a future where your business effortlessly blends modern accounting and financial systems with streamlined operations layered over a secure and scalable IT infrastructure.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 6,120 accounting software integration firms worldwide

See the full list, filter by size, metro and specialty, and access 15,467 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting software integration firms worldwide at a glance

As of Sep 27, 2026
28.4%Verified-email coverage
8.9Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · Sao Paulo
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
3,937
11-50
1,752
51-200
303
201-500
76
501-1,000
16
1,001-5,000
12
5,001-10,000
1
10001+
2

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 accounting software integration firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “accounting software integration firms” 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 15,467 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 September 27, 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.

Accounting software integration firms by location

28 lists · largest first

Every Accounting software integration 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 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 “accounting software integration firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting software integration firms are there worldwide?

RevenueBase identified 6,120 company matches for accounting software integration firms worldwide as of September 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?

Grupo IOB tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most accounting software integration firms?

Brazil leads with 995 companies, followed by the United States (989) and the United Kingdom (335). Every accounting software integration firms list by country and city is linked on this page.

Which city has the most accounting software integration firms?

Sao Paulo leads with 153 company records, followed by London (85) and Paris (60).

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 15,467 professional contacts with verified work emails tracked across these 6,120 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 September 27, 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.