Company lists · Data refreshed September 2026

Top 25 Account management firms based in London, United Kingdom

Name: Account management firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 98 companies tracked

RevenueBase identified 98 account management firms headquartered in London, United Kingdom as of September 2026 and tracks 2,317 professional contacts across them, including 919 with verified work emails and 103 with mobile numbers. London is the largest hub.

This list covers account management firms headquartered in London, United Kingdom, 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 22, 2026.

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 22, 2026 86% judged on-target in blind review

98Companies

2,317Contacts tracked

919Verified emails

103Mobile numbers

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The 25 largest account management firms based in London, United Kingdom

Ranked by team size

Top 25 of 98 account management firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to account management 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	Buzzacott	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	501-1,000	575 contacts →
	Partial evidence “Buzzacott is an accountancy and advisory firm with a long-standing history of supporting individuals, businesses, and not-for-profits.” Source: RevenueBase Database · checked Sep 22, 2026
2	WH Ireland	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	198 contacts →
	Partial evidence “WH Ireland is a financial services company offering Complete Wealth Management, Investment Management and Financial Planning.” Source: RevenueBase Database · checked Sep 22, 2026
3	Sopher CO	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	201-500	185 contacts →
	Partial evidence “Sopher + Co is one of the most entrepreneurial and progressive firms of accountants, business advisers, tax and corporate finance consultants in London.” Source: RevenueBase Database · checked Sep 22, 2026
4	Fundamental Media	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	170 contacts →
	Partial evidence “An award winning media, marketing, and tech solutions agency for the asset management, education, and careers industries.” Source: RevenueBase Database · checked Sep 22, 2026
5	Acuity Professional Group	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	138 contacts →
	Indirect evidence “We are a financial Professional Services firm, committed to giving you a simple and straightforward experience and ensuring you get the sophisticated financial outcomes you want.” Source: RevenueBase Database · checked Sep 22, 2026
6	Nyman Libson Paul	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	130 contacts →
	Partial evidence “Our story began in 1933, as an accountancy firm for those who dared to dream, create, and inspire.” Source: RevenueBase Database · checked Sep 22, 2026
7	Wilder COE	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	72 contacts →
	Indirect evidence “Welcome to Wilder Coe We work hard to maximise your wealth, minimise your risk, help you to meet your deadlines and support you to achieve your goals.” Source: RevenueBase Database · checked Sep 22, 2026
8	Chadsan	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	42 contacts →
	Indirect evidence “Based in London, Guildford, Essex and Bristol, ChadSan are dedicated to providing relationship focused services underpinned by the technology that is revolutionising the…” Source: RevenueBase Database · checked Sep 22, 2026
9	Toucan	Strong evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	38 contacts →
	Strong evidence “Toucan, a certified Amazon Ads Advanced partner, is dedicated to driving the growth of brands globally through strategic Amazon Ads and account management services.” Source: RevenueBase Database · checked Sep 22, 2026
10	BAND	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “Introducing BAND We help dreamers dream and players play.” Source: RevenueBase Database · checked Sep 22, 2026
11	Punter Southall Wealth, A Canaccord Genuity Company	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
12	Hardwick & Morris	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “We might be professionally qualified number crunchers but we also have a wealth of knowledge about your industry and know how to help you make the most from being a creative…” Source: RevenueBase Database · checked Sep 22, 2026
13	Adpl LLP	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	15 contacts →
	Partial evidence “ADPL is one of the leading accountancy firms in the country.” Source: RevenueBase Database · checked Sep 22, 2026
14	Ross Bennet Smith A Division Of Nksfb	Strong evidence	London, United KingdomHQ checked Sep 22, 2026	501-1,000	15 contacts →
	Strong evidence “With offices in London, Los Angeles, New York, Dublin and Cape Town, and a team of almost 700, the firm is the premier provider of Business Management, Accounting, Tax, Corporate…” Source: RevenueBase Database · checked Sep 22, 2026
15	Eightfourtwo	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “eightfourtwo is a different and contemporary wealth management company.” Source: RevenueBase Database · checked Sep 22, 2026
16	Influent Media	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “We are specialists in representing premium publishers to help grow their media footprint & revenues, whilst providing end to end agency engagement.” Source: RevenueBase Database · checked Sep 22, 2026
17	Reddy Siddiqui LLP	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “With over 50 years of experience, we are recognised for providing an independent, professional service with an emphasis on quality and a personal touch.” Source: RevenueBase Database · checked Sep 22, 2026
18	Stratom	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	11 contacts →
	Partial evidence “At Stratom, we’re dedicated to empowering founders, early-stage businesses, and individuals with outstanding financial guidance and accounting needs.” Source: RevenueBase Database · checked Sep 22, 2026
19	Valentis UK	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “We make your business our business.” Source: RevenueBase Database · checked Sep 22, 2026
20	Ratnam & CO	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	9 contacts →
	Partial evidence “At Ratnam & Co we offer a variety of accounting and other financial services.” Source: RevenueBase Database · checked Sep 22, 2026
21	Savvy Accounting	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	7 contacts →
	Partial evidence “Savvy Accounting – Smart Numbers, Real Growth At Savvy Accounting, we believe accountancy should be clear, approachable, and tailored to you.” Source: RevenueBase Database · checked Sep 22, 2026
22	Grosvenor Partners LLP	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “Working with a wide range of local, national and international clients, at Grosvenor Partners we help you get the best out of your situation.” Source: RevenueBase Database · checked Sep 22, 2026
23	TGR Partners	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	6 contacts →
	Indirect evidence “TGR Partners offer a wide range of services for its clients.” Source: RevenueBase Database · checked Sep 22, 2026
24	VK Accountancy	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “VK Accountancy has a passion for helping businesses and individuals with their financial needs.” Source: RevenueBase Database · checked Sep 22, 2026
25	Principal Accounting	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “At Principal Accounting, we specialise in providing accounting and financial services tailored to meet the unique needs of businesses owners.” Source: RevenueBase Database · checked Sep 22, 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: account management 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 account management firms.
Partial evidence: Its own public description names part of account management firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name account management 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 98 account management firms based in London, United Kingdom

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Account management firms based in London, United Kingdom at a glance

As of Sep 22, 2026

39.7%Verified-email coverage

4.4%Mobile-number coverage

23.6Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 24.0d

7180–30

19331–60

761–90

090–180

1180+

Company record updated

Median 85.0d

00–30

22131–60

1,41961–90

53390–180

144180+

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 account management 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.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “account management 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 account management 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 account management firms, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
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, 919 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 22, 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.

Account management firms by metro in the United Kingdom

Account management firms in London98

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 account management 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 account management firms are there based in London, United Kingdom?

RevenueBase identified 98 account management firms headquartered in London, United Kingdom 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?

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

Which city has the most account management firms?

London leads with 98 headquartered companies, followed by Bristol (10) and Birmingham (9).

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 919 verified decision-maker contacts tracked across these 98 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 22, 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.