Company lists · Data refreshed September 2026

Top 25 Xero advisors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 19,103 companies tracked

RevenueBase identified 19,103 xero advisors worldwide as of September 2026 and tracks 69,559 professional contacts across them, including 16,485 with verified work emails. The United States is the largest market and London the largest hub.

This list covers xero advisors 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 21, 2026. Country and city lists for xero advisors 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 21, 2026 86% judged on-target in blind review

19,103Companies

69,559Contacts tracked

16,485Verified emails

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The 25 largest xero advisors worldwide

Ranked by team size

Top 25 of 19,103 xero advisors worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to xero advisors: 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	Indirect evidence	Harrow, United KingdomHQ checked Sep 21, 2026	201-500	477 contacts →
	Indirect evidence “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Source: RevenueBase Database · checked Sep 21, 2026
2	Share Microfin LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	477 contacts →
	Indirect 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 21, 2026
3	OSOME	Indirect evidence	Central Business District, SingaporeHQ checked Sep 21, 2026	201-500	457 contacts →
	Indirect evidence “Expert accountants + simple software = financial admin, done.” Source: RevenueBase Database · checked Sep 21, 2026
4	Supporting Strategies	Indirect evidence	Beverly, MA, United StatesHQ checked Sep 21, 2026	51-200	415 contacts →
	Indirect evidence “Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.” Source: RevenueBase Database · checked Sep 21, 2026
5	Bench Accounting By Mainstreet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 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 21, 2026
6	BOL Adviseurs	Indirect evidence	Boxmeer, NetherlandsHQ checked Sep 21, 2026	201-500	272 contacts →
	Indirect evidence “De roots van Bol Adviseurs liggen in de accountancy.” Source: RevenueBase Database · checked Sep 21, 2026
7	Oremus Corporate Services	Partial evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	201-500	260 contacts →
	Partial evidence “At Oremus Corporate Services, we specialize in delivering top-notch Accounting and Bookkeeping, Secretarial Compliance, Payroll, Tax, HR, and Business Advisory Services.” Source: RevenueBase Database · checked Sep 21, 2026
8	Mercurius Advisory Services	Partial evidence	New Delhi, IndiaHQ checked Sep 21, 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 21, 2026
9	Aone Outsourcing Solutions PVT LTD	Indirect evidence	Ghaziabad, IndiaHQ checked Sep 21, 2026	501-1,000	195 contacts →
	Indirect 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 21, 2026
10	Accountor Norge	Indirect evidence	NorwayHQ checked Sep 21, 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 21, 2026
11	Mindspace Outsourcing	Indirect evidence	Jaipur, IndiaHQ checked Sep 21, 2026	51-200	156 contacts →
	Indirect 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 21, 2026
12	Meru Accounting	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	201-500	151 contacts →
	Indirect 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 21, 2026
13	UOL Účetnictví A UOL Účtovníctvo	Indirect evidence	Praha 5, Czech RepublicHQ checked Sep 21, 2026	201-500	143 contacts →
	Indirect evidence “Pusťte účetnictví z hlavy.” Source: RevenueBase Database · checked Sep 21, 2026
14	accountingdepartment.com	Indirect evidence	United StatesHQ checked Sep 21, 2026	51-200	141 contacts →
	Indirect evidence “AccountingDepartment.com, LLC was formed in 2004 to providing full-charge bookkeeping and accounting services for the small to medium business market.” Source: RevenueBase Database · checked Sep 21, 2026
15	Fovera Prostasia S.A	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	51-200	116 contacts →
	Indirect evidence “Accounting - Taxation - Business Consulting OUR COMPANY Following many years of activity, Fovera Prostasia S.A.” Source: RevenueBase Database · checked Sep 21, 2026
16	Glocal Accounting	Indirect evidence	Delaware, DE, United StatesHQ checked Sep 21, 2026	501-1,000	115 contacts →
	Indirect evidence “Welcome to GLOCAL Accounting.” Source: RevenueBase Database · checked Sep 21, 2026
17	Cloudcfo	Indirect evidence	Mandaluyong, PhilippinesHQ checked Sep 21, 2026	51-200	109 contacts →
	Indirect evidence “CloudCFO is a tech-enabled accounting and finance services provider trusted by over 400 companies in the Philippines and abroad.” Source: RevenueBase Database · checked Sep 21, 2026
18	HCL Accountancy Limited	Indirect evidence	United KingdomHQ checked Sep 21, 2026	n/a	101 contacts →
	Indirect evidence “Let us help you reduce the time you spend accounting and bookkeeping for your organisation giving you more time to run your business and enjoy life.” Source: RevenueBase Database · checked Sep 21, 2026
19	B.T. Bryan Accounting, INC	Indirect evidence	Palatine, United StatesHQ checked Sep 21, 2026	n/a	101 contacts →
	Indirect evidence “We specialize in accounting services for small and family-owned businesses-serving as the perfect extension of your company’s financial team.” Source: RevenueBase Database · checked Sep 21, 2026
20	Acgile Accounting & Bookkeeping Services	Indirect evidence	Islamabad, PakistanHQ checked Sep 21, 2026	51-200	97 contacts →
	Indirect evidence “Since 2017, Acgile has helped U.S-based eCommerce, automotive, SaaS, and manufacturing businesses take control of their finances through specialized, outsourced accounting and…” Source: RevenueBase Database · checked Sep 21, 2026
21	Vyde TAX & Accounting	Indirect evidence	Provo, UT, United StatesHQ checked Sep 21, 2026	51-200	97 contacts →
	Indirect evidence “Vyde provides bookkeeping, taxes, and unlimited accounting advice for a small monthly fee.” Source: RevenueBase Database · checked Sep 21, 2026
22	ENKEL	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 21, 2026	51-200	93 contacts →
	Indirect evidence “Enkel is on a mission to disrupt the delivery of accounting and bookkeeping services with transformational cloud-based accounting technology.” Source: RevenueBase Database · checked Sep 21, 2026
23	Rivero, Gordimer & Company, P.A	Partial evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	92 contacts →
	Partial evidence “Rivero, Gordimer & Company is a full-service accounting and advisory firm based in Tampa Bay.” Source: RevenueBase Database · checked Sep 21, 2026
24	Kees DE Boekhouder	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 21, 2026	51-200	91 contacts →
	Indirect evidence “Kees de Boekhouder bestaat uit een team boekhouders die werken vanuit verschillende locaties: een monumentaal pand in hartje Amsterdam, een industrieel gedeeld kantoor in…” Source: RevenueBase Database · checked Sep 21, 2026
25	Bookkeeping Services	Indirect evidence	AustraliaHQ checked Sep 21, 2026	n/a	91 contacts →
	Indirect evidence “Bookkeeping services with over 40+ years of combined experience, we've owned and worked with hundreds of businesses just like yours.” Source: RevenueBase Database · checked Sep 21, 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 advisors. 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 advisors.
Partial evidence: Its own public description names part of xero advisors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name xero advisors. 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 19,103 xero advisors worldwide

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Xero advisors worldwide at a glance

As of Sep 21, 2026

23.7%Verified-email coverage

3.6Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

16,168

11-50

2,469

51-200

249

201-500

501-1,000

1,001-5,000

10001+

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 xero advisors, 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 xero advisors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “xero advisors”. 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 advisors), 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 advisors, 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, 16,485 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 21, 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 advisors by location

59 lists · largest first

Every Xero advisors 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 advisors, 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 advisors are there worldwide?

RevenueBase identified 19,103 xero advisors 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 advisors?

The United States leads with 5,751 companies, followed by the United Kingdom (2,335) and Australia (1,297). Every xero advisors list by country and city is linked on this page.

Which city has the most xero advisors?

London leads with 403 headquartered companies, followed by Dubai (116) and New York (112).

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 16,485 verified decision-maker contacts tracked across these 19,103 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 21, 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.