Company lists · Data refreshed September 2026

Top 25 Xero accounting firms worldwide

Name: Xero accounting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 19,231 companies tracked

RevenueBase identified 19,231 xero accounting firms worldwide as of September 2026 and tracks 78,875 professional contacts across them, including 23,403 with verified work emails and 11,083 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers xero 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 6, 2026. Country and city lists for xero 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 6, 2026 86% judged on-target in blind review

19,231Companies

78,875Contacts tracked

23,403Verified emails

11,083Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest xero accounting firms worldwide

Ranked by team size

Top 25 of 19,231 xero accounting firms worldwide, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to xero 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Outbooks	Partial evidence	Harrow, United KingdomHQ checked Sep 6, 2026	201-500	477 contacts →
	Partial evidence “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Source: RevenueBase Database · checked Sep 6, 2026
2	Share Microfin LTD	Partial evidence	Hyderabad, IndiaHQ checked Sep 6, 2026	1,001-5,000	477 contacts →
	Partial evidence “Share Microfin Ltd is an Accounting company located in 1-224/58, Rajeev Nagar, Nacharam, Hyderabad, Andhra Pradesh, India.” Source: RevenueBase Database · checked Sep 6, 2026
3	Bench Accounting By Mainstreet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	201-500	366 contacts →
	Indirect evidence “At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.” Source: RevenueBase Database · checked Sep 6, 2026
4	1-800accountant	Partial evidence	New York, NY, United StatesHQ checked Sep 6, 2026	201-500	320 contacts →
	Partial evidence “1-800Accoutant is America’s leading virtual accounting firm for small businesses.” Source: RevenueBase Database · checked Sep 6, 2026
5	Kindercare Learing Center	Partial evidence	Portland, OR, United StatesHQ checked Sep 6, 2026	n/a	257 contacts →
	Partial evidence “Kindercare Learing Center is an Accounting company located in 650 NE Holladay St # 1400, Portland, Oregon, United States.” Source: RevenueBase Database · checked Sep 6, 2026
6	Mercurius Advisory Services	Partial evidence	New Delhi, IndiaHQ checked Sep 6, 2026	201-500	249 contacts →
	Partial evidence “Mercurius Advisory Services (MAS) provides comprehensive suite of accounting, bookkeeping and taxation services to small, medium and large enterprises.” Source: RevenueBase Database · checked Sep 6, 2026
7	Aone Outsourcing Solutions PVT LTD	Partial evidence	Ghaziabad, IndiaHQ checked Sep 6, 2026	501-1,000	195 contacts →
	Partial evidence “Aone is one of the leading global accounting, bookkeeping, tax and year end accounts preparation service provider in India.” Source: RevenueBase Database · checked Sep 6, 2026
8	Accountor Norge	Indirect evidence	NorwayHQ checked Sep 6, 2026	501-1,000	192 contacts →
	Indirect evidence “Med 70 kontorer over hele Norge er vi store, men også lokale.” Source: RevenueBase Database · checked Sep 6, 2026
9	Larson Gross	Partial evidence	Bellingham, WA, United StatesHQ checked Sep 6, 2026	201-500	186 contacts →
	Partial evidence “Larson Gross is a full-service firm providing comprehensive accounting, bookkeeping, tax, and consulting services to clients throughout the United States and Canada.” Source: RevenueBase Database · checked Sep 6, 2026
10	Contajá Contabilidade Online	Indirect evidence	Viçosa, BrazilHQ checked Sep 6, 2026	201-500	172 contacts →
	Indirect evidence “A Contajá é uma Contabilidade Online e Confiável, tendo como missão ser reconhecida pela excelência na entrega de valor ao cliente, no Brasil e na América Latina.” Source: RevenueBase Database · checked Sep 6, 2026
11	GKK Partners	Indirect evidence	Munich, GermanyHQ checked Sep 6, 2026	201-500	170 contacts →
	Indirect evidence “GKK PARTNERS ist eine expandierende Wirtschaftsprüfungs- und Steuerberatungsgesellschaft mit Sitz in München.” Source: RevenueBase Database · checked Sep 6, 2026
12	Mindspace Outsourcing	Partial evidence	Jaipur, IndiaHQ checked Sep 6, 2026	51-200	156 contacts →
	Partial evidence “Mindspace Outsourcing, established in 2007, and offers bookkeeping outsourcing and accounting services to individuals and small to medium-sized businesses in the United States…” Source: RevenueBase Database · checked Sep 6, 2026
13	WEA Deltaland Accountants & Adviseurs	Indirect evidence	Oud-beijerland, NetherlandsHQ checked Sep 6, 2026	51-200	151 contacts →
	Indirect evidence “As an entrepreneur, you want an accountant who thinks along with you and truly understands what makes your situation unique.” Source: RevenueBase Database · checked Sep 6, 2026
14	Meru Accounting	Partial evidence	Ahmedabad, IndiaHQ checked Sep 6, 2026	201-500	151 contacts →
	Partial evidence “Meru Accounting is the Accounting firm running under the leadership of CA Rushabh Shah and CA Harnish Shah providing accounting and bookkeeping services across Australia, US…” Source: RevenueBase Database · checked Sep 6, 2026
15	Mize Cpas INC	Partial evidence	Topeka, KS, United StatesHQ checked Sep 6, 2026	1,001-5,000	146 contacts →
	Partial evidence “Mize CPAs is now part of Aprio, a Top 25 premier, full-service business advisory and accounting firm that’s passionate for what’s next.” Source: RevenueBase Database · checked Sep 6, 2026
16	Konnect Books & Taxes- Virtual CFO & USA TAX Consultants	Indirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	51-200	145 contacts →
	Indirect evidence “Konnect Books & Taxes, is an International Bookkeeping, Tax & Advisory firm, in the USA, with CPAs & Accountants, ready to help you take care of ALL your numbers.” Source: RevenueBase Database · checked Sep 6, 2026
17	Brixey & Meyer	Indirect evidence	Miamisburg, OH, United StatesHQ checked Sep 6, 2026	51-200	123 contacts →
	Indirect evidence “Brixey & Meyer was formed in 2002 by David S.” Source: RevenueBase Database · checked Sep 6, 2026
18	Administer Tilitoimisto	Indirect evidence	Helsinki, FinlandHQ checked Sep 6, 2026	501-1,000	122 contacts →
	Indirect evidence “Hillo kiinnostaa meitä kaikkia ja etenkin reipasta tuloksentekijää.” Source: RevenueBase Database · checked Sep 6, 2026
19	Comptastar	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	201-500	120 contacts →
	Indirect evidence “Comptastar.fr, votre compta faite par nos experts.” Source: RevenueBase Database · checked Sep 6, 2026
20	E&c Expertise Comptable	Indirect evidence	Brest, FranceHQ checked Sep 6, 2026	51-200	116 contacts →
	Indirect evidence “Société indépendante d'expertise comptable et de services collaboratifs au coeur de l'innovation et de la relation humaine composée de 11 agences réparties sur les communes…” Source: RevenueBase Database · checked Sep 6, 2026
21	Connectcpa LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	111 contacts →
	Partial evidence “Scale your business with streamlined, expert-led cloud accounting services.” Source: RevenueBase Database · checked Sep 6, 2026
22	FLB Accountants LLP	Partial evidence	Wokingham, United KingdomHQ checked Sep 6, 2026	51-200	107 contacts →
	Partial evidence “FLB is a firm of accountants providing core accounting services to a range of clients from start-ups, owner-managed businesses and private clients, to large corporates and…” Source: RevenueBase Database · checked Sep 6, 2026
23	Xact Accounting	Partial evidence	Indooroopilly, AustraliaHQ checked Sep 6, 2026	11-50	99 contacts →
	Partial evidence “Xact Accounting is a full-service accounting firm dedicated to helping small business and SME owners grow their profit not just revenue.” Source: RevenueBase Database · checked Sep 6, 2026
24	Vallei Accountants	Indirect evidence	Woudenberg, NetherlandsHQ checked Sep 6, 2026	201-500	99 contacts →
	Indirect evidence “Bij ons gaat het allereerst om mensen en vervolgens om de cijfers, mensen maken het verschil.” Source: RevenueBase Database · checked Sep 6, 2026
25	Rayner Essex LLP	Indirect evidence	St Albans, United KingdomHQ checked Sep 6, 2026	51-200	98 contacts →
	Indirect evidence “At Rayner Essex, we believe your accountant should do a lot more than just report on how your business is doing - he or she should help you identify opportunities to improve your…” Source: RevenueBase Database · checked Sep 6, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: xero accounting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names xero accounting firms.
Partial evidence: Its own public description names part of xero accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name xero accounting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 19,231 xero accounting firms worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 23,403 reachable decision-makers.

Free signup · no credit card

View the full list →

Xero accounting firms worldwide at a glance

As of Sep 6, 2026

29.7%Verified-email coverage

14.1%Mobile-number coverage

4.1Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · London

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

15,230

11-50

3,411

51-200

358

201-500

501-1,000

1,001-5,000

10001+

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 xero 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: 29 countries, largest first: the United States, the United Kingdom, Brazil, Australia, Canada, the Netherlands, France, Sweden, Belgium, India and 19 more. Country and city lists for xero accounting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “xero 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 xero 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 xero 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, 23,403 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 between September 6, 2026 and September 14, 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.

Xero accounting firms by location

80 lists · largest first

Every Xero 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 xero 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 xero accounting firms are there worldwide?

RevenueBase identified 19,231 xero 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?

Outbooks, headquartered in London, tops this list with the largest team on record.

Which country has the most xero accounting firms?

The United States leads with 7,249 companies, followed by the United Kingdom (2,282) and Brazil (1,893). Every xero accounting firms list by country and city is linked on this page.

Which city has the most xero accounting firms?

London leads with 396 headquartered companies, followed by Sao Paulo (279) and New York (142).

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 23,403 verified decision-maker contacts tracked across these 19,231 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 6, 2026 and September 14, 2026.

Ready to reach these companies? Verified emails and direct dials for all 19,231 xero accounting firms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.