Company lists · Data refreshed September 2026

Top 25 Securities accounting firms based in the United Kingdom

Name: Securities accounting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 430 companies tracked

RevenueBase identified 430 securities accounting firms headquartered in the United Kingdom as of September 2026 and tracks 3,201 professional contacts across them, including 1,317 with verified work emails and 125 with mobile numbers. London is the largest hub.

This list covers securities accounting firms headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

430Companies

3,201Contacts tracked

1,317Verified emails

125Mobile numbers

Explore all 430 companies → Free signup · no credit card · 500 free credits

The 25 largest securities accounting firms based in the United Kingdom

Ranked by team size

Top 25 of 430 securities accounting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names securities accounting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	PKF LittlejohnIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	501-1,000	702
	“We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.” Source: company website · checked Sep 6, 2026
2	Mazars In The UKIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	1,001-5,000	505
	Source: company website · checked Sep 6, 2026
3	HSJ Accountants, Business & TAX AdvisorsIndirect evidence	Newport, United KingdomHQ checked Sep 6, 2026	51-200	134
	“Award winning accountants & tax advisors based in Newport, South Wales.” Source: company website · checked Sep 6, 2026
4	Harris & Trotter LLPIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	116
	“At Harris & Trotter, 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…” Source: company website · checked Sep 6, 2026
5	Rayner Essex LLPIndirect evidence	St Albans, United KingdomHQ checked Sep 6, 2026	51-200	98
	“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: company website · checked Sep 6, 2026
6	HWB Chartered AccountantsIndirect evidence	Chandlers Ford, United KingdomHQ checked Sep 6, 2026	51-200	70
	“HWB is a leading firm of Chartered Accountants offering the depth of resource and specialist skills of a national practice.” Source: company website · checked Sep 6, 2026
7	Dafferns AccountantsIndirect evidence	Coventry, United KingdomHQ checked Sep 6, 2026	11-50	55
	“Dafferns is a friendly, dynamic firm of accountants.” Source: company website · checked Sep 6, 2026
8	Adams & MoorePartial evidence	Dartford, United KingdomHQ checked Sep 6, 2026	51-200	53
	“Adams & Moore is a professional firm of Auditors, Tax and Professional Advisors offering a comprehensive range of accounting, compliance, financial and business advisory services…” Source: company website · checked Sep 6, 2026
9	THP Chartered AccountantsIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	35
	“THP Chartered Accountants have five offices covering London, Surrey and Essex.” Source: company website · checked Sep 6, 2026
10	SadofskysIndirect evidence	Hull, United KingdomHQ checked Sep 6, 2026	11-50	23
	“Your Accountant for Life Sadofskys provides trusted advice and first-class service to business and personal clients across the communities we serve.” Source: company website · checked Sep 6, 2026
11	Pathlight AssociatesIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	22
	“What we do We are a specialist professional services firm providing consulting and assurance services, particularly to the Financial Services sector.” Source: company website · checked Sep 6, 2026
12	Kress Cooper Chartered AccountantsIndirect evidence	Richmond, United KingdomHQ checked Sep 6, 2026	11-50	20
	“Kress Cooper is a key regional player in Tax, Audit and Advisory services.” Source: company website · checked Sep 6, 2026
13	CWF & PartnersPartial evidence	Croydon, United KingdomHQ checked Sep 6, 2026	11-50	16
	“CWF & Partners Ltd is an accounting firm based at Freedman House, Christopher Wren Yard, 117 High Street, CROYDON, United Kingdom.” Source: company website · checked Sep 6, 2026
14	WhyfieldIndirect evidence	Truro, United KingdomHQ checked Sep 6, 2026	11-50	15
	“We give people the right information to make the right decisions, so that their businesses and lives flourish.” Source: company website · checked Sep 6, 2026
15	Alton & COIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	15
	Source: company website · checked Sep 6, 2026
16	UHY BPR Heaton Chartered AccountantsIndirect evidence	Leeds, United KingdomHQ checked Sep 6, 2026	11-50	14
	“UHY BPR Heaton can trace its roots back to the 1920's and by focusing on looking after our clients we are now one of the largest independent chartered practices in the Yorkshire…” Source: company website · checked Sep 6, 2026
17	Xeinadin Graham Paul AccountantsIndirect evidence	Bridgend, United KingdomHQ checked Sep 6, 2026	11-50	14
	“Personable and friendly, we are easy to work with and we know that our clients really do value our prompt and reliable service.” Source: company website · checked Sep 6, 2026
18	Suffolk TAX Accountants LTDPartial evidence	Hadleigh, United KingdomHQ checked Sep 6, 2026	11-50	13
	“Our aim is to provide a professional, personal, effective solution to all of your day-to-day accounting, auditing and taxation needs.” Source: company website · checked Sep 6, 2026
19	Parker Russell UKIndirect evidence	City Of London, United KingdomHQ checked Sep 6, 2026	201-500	13
	“Parker Russell is a leading audit firm offering comprehensive services to medium to large corporations, specialising in FCA-regulated environments and stock exchange-listed…” Source: company website · checked Sep 6, 2026
20	Octa AccountantsPartial evidence	Essex, United KingdomHQ checked Sep 6, 2026	1-10	13
	“OCTA Accountants is one of the emerging accounting and consulting firms across the globe.” Source: company website · checked Sep 6, 2026
21	John WilliamsIndirect evidence	Reigate, United KingdomHQ checked Sep 6, 2026	11-50	13
	“We are registered auditors and have a wide experience in reporting under the Companies Act and the special rules which govern solicitors.” Source: company website · checked Sep 6, 2026
22	Leigh CarrIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	12
	“Quite simply, we are committed to helping you grow your business and improve your bottom line.” Source: company website · checked Sep 6, 2026
23	Mills Pyatt LTDPartial evidence	Redditch, United KingdomHQ checked Sep 6, 2026	1-10	12
	“Mills Pyatt a professional Audit & Accounting firm based centrally in the UK, just south of Birmingham.” Source: company website · checked Sep 6, 2026
24	Cadence Accounting LimitedPartial evidence	Oxted, United KingdomHQ checked Sep 6, 2026	11-50	11
	“At Cadence, we believe great accounting isn't just about compliance or the end result - it's about unlocking potential and making the journey as rewarding as the destination…” Source: company website · checked Sep 6, 2026
25	Clouders Audit & Accounts LTDIndirect evidence	Leigh-on-sea, United KingdomHQ checked Sep 6, 2026	11-50	11
	“Clouders Audit & Accounts Ltd is an accountancy practice based in Leigh-on-Sea, Essex.” Source: company website · checked Sep 6, 2026

Showing 25 of 430 securities accounting firms based in the United Kingdom

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Securities accounting firms based in the United Kingdom at a glance

As of Sep 6, 2026

1-10Median size (employees)

LondonLargest hub · 87 HQs

125Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

297

11-50

112

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

1,225

31–60

61–90

90–180

180+

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 securities accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “securities accounting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among securities accounting firms, and records with no verified work email. Companies headquartered outside United Kingdom 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 an evidence 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, 1,317 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 6, 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.

Securities accounting firms by metro

Securities accounting firms in London87

Frequently asked

How many securities accounting firms are there based in the United Kingdom?

RevenueBase identified 430 securities accounting firms headquartered in the 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?

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

Which city has the most securities accounting firms?

London leads with 87 headquartered companies, followed by Manchester (10) and Birmingham (8).

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 1,317 verified decision-maker contacts tracked across these 430 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 6, 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 SmartSearch, 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.