Company lists · Data refreshed September 2026
Top 25 Onpay accountants worldwide
RevenueBase identified 2,229 onpay accountants worldwide as of September 2026 and tracks 10,151 professional contacts across them, including 3,393 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers onpay accountants 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 20, 2026. Country and city lists for onpay accountants 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.
The 25 largest onpay accountants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 708 contacts → | ||||
Partial evidence “At TaxAssist Accountants we specialise in providing accountancy services, tax returns, payroll, bookkeeping, tax savings and tax advice to small businesses and support over…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 347 contacts → | ||||
Indirect evidence “Etax is a big team working on one big promise: To make tax easy for Australians.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 140 contacts → | ||||
Partial evidence “Burgess Hodgson are a Kent based accountancy firm with the skills and expertise to rival any other accountancy firm in the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 115 contacts → | ||||
Indirect evidence “Votre expert-comptable en ligne, partenaire des entrepreneurs en France Depuis 2015, Ça Compte Pour Moi révolutionne la comptabilité pour les entrepreneurs, artisans, commerçants…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 104 contacts → | ||||
Indirect evidence “Online Accounting Service | Bookkeeping | Payroll | Personal Tax Return Filing to HMRC | Corporation Tax Filing | HMRC ONLINE FILING: Our aim is to help small business owners` tax…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 102 contacts → | ||||
Partial evidence “SJD is now Caroola Accountancy!” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 93 contacts → | ||||
Partial evidence “More Than Accountants is an industry leader when it comes to cutting edge accountancy services and business growth, we utilise the latest technology to help us achieve both our…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 91 contacts → | ||||
Partial evidence “We're a chartered accountancy and advisory firm working with businesses at every stage, from owner-managed SMEs through to established corporates, groups, and non-profit…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 70 contacts → | ||||
Indirect evidence “Running a business is not easy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 62 contacts → | ||||
Partial evidence “We offer online accounting services which simplify tax and finances for small businesses, by providing a fresh alternative to old-school high street accountants.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 62 contacts → | ||||
Partial evidence “ICS Accounting provide a range of accountancy and payroll solutions to support independent professionals, recruitment agencies and business owners.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 55 contacts → | ||||
Partial evidence “Online Accounting for micro and small businesses with low cost and support of experienced accountants.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 contacts → | ||||
Indirect evidence “Mais do que uma contabilidade online, parceiros nos negócios.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 51 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 47 contacts → | ||||
Partial evidence “ICAEW accredited and established for over 25 years, our team members at Richardsons Chartered Accountants provide specialist accounting advice and payroll for small and medium…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 46 contacts → | ||||
Indirect evidence “As founders who've scaled startups, we understand the tax, payroll and finance challenges firsthand.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 44 contacts → | ||||
Partial evidence “In business we grow, we develop, and we change, ensure you are working with an accountancy firm that will see and understand your brand and your goals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 36 contacts → | ||||
Partial evidence “SAS KPO Services is an UK accountancy outsourcing provider for UK Accountancy Practices.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 33 contacts → | ||||
Indirect evidence “Somos um escritório de contabilidade online formado por uma equipe de contadores especialistas em todas as áreas da contabilidade, além de consultores e programadores.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 33 contacts → | ||||
Partial evidence “TeamSAS are building one of the UK’s leading digital accountancy firms to enable entrepreneurial businesses to grow.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 32 contacts → | ||||
Partial evidence “Gravitate is an award-winning digital accountancy practice in Sheffield, specialising in helping ambitious start-ups, scale-ups and SMEs to automate their finances and facilitate…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 30 contacts → | ||||
Indirect evidence “At Williams Denton, we take care of the accounts and manage your payroll so you can focus on what you do best.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 30 contacts → | ||||
Indirect evidence “Evolution Business and Personal Advisers offers you positive advice to keep you on track.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Partial evidence “Chia, Ka & Partners Behind every up-to-date transaction are qualified accountants that strive to give the best possible financial support.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 29 contacts → | ||||
Indirect evidence “Regnskapsførerselskap etablert i 1953.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: onpay accountants. 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 onpay accountants.
- Partial evidence
- Its own public description names part of onpay accountants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name onpay accountants. 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 2,229 onpay accountants worldwide
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Onpay accountants worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 onpay accountants, 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 onpay accountants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “onpay accountants”. 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 onpay accountants), 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 onpay accountants, 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, 3,393 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 20, 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.
Onpay accountants by location
7 lists · largest firstEvery Onpay accountants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 onpay accountants, 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 onpay accountants are there worldwide?
RevenueBase identified 2,229 onpay accountants 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?
Taxassist Accountants, headquartered in Norwich, tops this list with the largest team on record.
Which country has the most onpay accountants?
The United Kingdom leads with 1,153 companies, followed by Australia (295) and the United States (93). Every onpay accountants list by country and city is linked on this page.
Which city has the most onpay accountants?
London leads with 176 headquartered companies, followed by Manchester (22) and Birmingham (21).
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 3,393 verified decision-maker contacts tracked across these 2,229 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 20, 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.