Company lists · Data verified August 2026

Top 25 Accounting firms for international nonprofits based in London, United Kingdom

Name: Accounting firms for international nonprofits based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 382 companies tracked

There are 382 accounting firms for international nonprofits headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 25,986 professional contacts across them, including 4,182 with verified work emails and 946 with mobile numbers. London is the largest hub.

This list covers accounting firms for international nonprofits headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

382Companies

25,986Contacts tracked

4,182Verified emails

946Mobile numbers

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The 25 largest accounting firms for international nonprofits based in London, United Kingdom

Ranked by team size

Top 25 of 382 accounting firms for international nonprofits based in London, United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Kpmg UK	London	10001+	14,427	808
2	PKF Global	London	10001+	727	66
3	PKF Littlejohn	London	501-1,000	710	419
4	Blick Rothenberg	London	501-1,000	698	483
5	NEXIA	London	10001+	669	11
6	Haysmac	London	501-1,000	660	322
7	Mazars In The UK	London	1,001-5,000	516	231
8	Kreston Global	London	10001+	504	10
9	Gravita	London	201-500	376	287
10	Affinia	London	201-500	370	198
11	HLB International	London	10001+	287	26
12	Russell Bedford International	London	1,001-5,000	262	9
13	Lubbock Fine	London	51-200	199	141
14	Dixon Wilson	London	51-200	151	89
15	Ellacotts Accountants	London	51-200	124	82
16	Harris & Trotter LLP	London	51-200	115	79
17	Sayer Vincent	London	51-200	103	71
18	Xeinadin Previously Silver Levene	London	1,001-5,000	100	43
19	Goodman Jones	London	51-200	89	61
20	Rouse Partners	London	51-200	82	49
21	Clarkson Hyde Global	London	201-500	54	2
22	Bright Grahame Murray	London	51-200	53	47
23	Adams & Moore	London	51-200	51	26
24	Accountax Consultants UK Limited	London	51-200	50	29
25	Haysmacintyre	London	501-1,000	26	12

Showing 25 of 382 accounting firms for international nonprofits based in London, United Kingdom

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Accounting firms for international nonprofits based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 382 HQs

946Contacts with mobile numbers

23Emails re-verified in last 30 days

Companies by employee count

1-10

204

11-50

105

51-200

201-500

501-1,000

1,001-5,000

10001+

Accounting firms for international nonprofits by metro in the United Kingdom

Metro	Companies
Accounting firms for international nonprofits in London	382
Accounting firms for international nonprofits in Bristol	31
Accounting firms for international nonprofits in Birmingham	29
Accounting firms for international nonprofits in Manchester	27
Accounting firms for international nonprofits in Ilford	18
Accounting firms for international nonprofits in Leeds	16
Accounting firms for international nonprofits in Glasgow	16

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting firms for international nonprofits”, with match quality audited by blind human judging, and headquartered in London, United Kingdom.
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: Contact records re-verify on a rolling cadence; 23 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many accounting firms for international nonprofits are there based in London, United Kingdom?

There are 382 accounting firms for international nonprofits headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most accounting firms for international nonprofits?

London leads with 382 headquartered companies, followed by Bristol (31) and Birmingham (29).

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 4,182 verified decision-maker contacts tracked across these 382 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

Accounting firms for international nonprofits by geography

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.