Company lists · Data refreshed September 2026

Top 25 Association business consulting firms based in the United Kingdom

Name: Association business consulting 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 23, 2026 1,804 companies tracked

RevenueBase identified 1,804 company matches for association business consulting firms associated with the United Kingdom as of September 2026 and tracks 9,369 professional contacts across them, including 3,009 with verified work emails and 682 with mobile numbers. London is the largest hub.

This list covers company matches for association business consulting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 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 RevenueBase SmartSearch · Exact Recorded Sep 23, 2026 How this list was built

1,804Companies

9,369Contacts tracked

3,009Verified emails

682Mobile numbers

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The 25 largest association business consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,804 company matches for association business consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Quantuma	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	277 contacts →
	Exact match “Quantuma is a leading business advisory firm which works with businesses at the key milestones.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Elixirr	Exact match	London, United KingdomHQ recorded Sep 23, 2026	501-1,000	275 contacts →
	Exact match “An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Ellisons	Exact match	Colchester, United KingdomHQ recorded Sep 23, 2026	201-500	258 contacts →
	Exact match “Ellisons is one of the region’s oldest, most established and fastest growing firms.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	Oury Clark	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	171 contacts →
	Exact match “Our pioneering integrated approach to professional services cuts through the complicated layers of the legal and accountancy world to give you straightforward joined-up advice and…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Ellacotts Accountants	Exact match	Banbury, United KingdomHQ recorded Sep 23, 2026	51-200	120 contacts →
	Exact match “Ellacotts is one of the largest independent accounting and business advisory firms in the UK and is ranked as a Top 100 Accountancy Firm by Accountancy Age.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	Hentons	Exact match	Leeds, United KingdomHQ recorded Sep 23, 2026	51-200	109 contacts →
	Exact match “We have over 40 years of experience and pride ourselves on understanding our clients, their businesses, and the issues they face, no matter how big or small.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Definition	Exact match	West End, United KingdomHQ recorded Sep 23, 2026	51-200	97 contacts →
	Exact match “We’re specialists, not generalists We built our business by bringing together different specialists – strategists, creatives, makers, technologists and more.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	K3 Capital Group	Exact match	Manchester, United KingdomHQ recorded Sep 23, 2026	501-1,000	97 contacts →
	Exact match “K3 Capital Group is a professional services firm providing advisory services to SMEs throughout the UK and overseas.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	BDO Northern Ireland	Exact match	Belfast, United KingdomHQ recorded Sep 23, 2026	51-200	93 contacts →
	Exact match “BDO NI specialises in helping businesses, whether start-ups or multinationals, to grow.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	HJS Accountants	Exact match	Southampton, United KingdomHQ recorded Sep 23, 2026	51-200	77 contacts →
	Exact match “If you are looking for a team of reliable, approachable, and proactive accountants and business advisers, who will work alongside you to help you succeed, then we can help.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	MG Group	Exact match	Harrow, United KingdomHQ recorded Sep 23, 2026	11-50	73 contacts →
	Exact match “MG Group is a multi-disciplinary practice providing accounting, tax, audit, legal and business consulting services.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Excalibur Communications	Exact match	Swindon, United KingdomHQ recorded Sep 23, 2026	51-200	72 contacts →
	Exact match “Excalibur provides an end to end business consulting service that offers reliable insight, and expertise in communications and technology.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	WEM & CO Chartered Accountants	Exact match	East Acton, United KingdomHQ recorded Sep 23, 2026	11-50	72 contacts →
	Exact match “Welcome to Wem & Co Are you looking for an innovative firm of chartered accountants and business development specialists who can help you improve the performance and profitability…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Sharma & CO	Exact match	Birmingham, United KingdomHQ recorded Sep 23, 2026	n/a	71 contacts →
	Exact match “Sharma & Co operates from offices in Birmingham, London and Manchester delivering practical and cost effective advice.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	HWB Chartered Accountants	Exact match	Chandlers Ford, United KingdomHQ recorded Sep 23, 2026	51-200	70 contacts →
	Exact match “HWB is a leading firm of Chartered Accountants offering the depth of resource and specialist skills of a national practice.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Camelot	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	66 contacts →
	Exact match “We are a network of independent consultants who are ex-C-Suite Execs/Senior Managers who have all been there and done it in top organisations, mainly in insurance but others as…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	GCE	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	57 contacts →
	Exact match “Are you looking to maximize your business relationships across the globe?” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Management Consultancies Association	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	52 contacts →
	Exact match “The Management Consultancies Association (MCA) is the representative body for management consultancy firms in the UK.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Managing Partners' Forum	Exact match	London, United KingdomHQ recorded Sep 23, 2026	n/a	50 contacts →
	Exact match “Managing Partners' Forum is a membership organisation dedicated to helping professional firms grow by providing insights to improve performance, increase profitability and prepare…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	Moore Kingston Smith Herts Beds Bucks	Exact match	St Albans, United KingdomHQ recorded Sep 23, 2026	51-200	46 contacts →
	Exact match “We proudly announce that WMT has joined forces with Moore Kingston Smith, creating a stronger, unified team with shared values and a commitment to excellence.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	TGFP	Exact match	Leamington Spa, United KingdomHQ recorded Sep 23, 2026	11-50	45 contacts →
	Exact match “Complete business accounting With our experience and resources, we offer our clients support in business development including preparation of business plans, growth strategy and…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Saint & CO	Exact match	Carlisle, United KingdomHQ recorded Sep 23, 2026	51-200	43 contacts →
	Exact match “Saint & Co is a firm of Chartered Accountants, Taxation Experts, Independent Financial Advisers and Professional Business Advisers specialising in helping business owners…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	Q4accounting	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	43 contacts →
	Exact match “Q4 Accounting is a powerful network of efficient and eminent accounting professionals.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	R.E.P.R.E.S.E.N.T	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Sep 23, 2026	51-200	42 contacts →
	Exact match “You run an accountancy practice.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	Kindleworth LLP	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	40 contacts →
	Exact match “Kindleworth has launched and managed some of the boldest and most successful new law firms of the last decade, in the UK and across the globe.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “association business consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,804 association business consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,009 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Association business consulting firms based in the United Kingdom at a glance

As of Sep 23, 2026

32.1%Verified-email coverage

7.3%Mobile-number coverage

5.2Average contacts per company

1-10Median size (employees)

35.3%Largest-city concentration · London

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

1,428

11-50

278

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

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

Email last verified

Median 26.0d

2,2480–30

71431–60

3961–90

190–180

7180+

Company record updated

Median 86.0d

00–30

1,28831–60

4,67961–90

2,81090–180

592180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United Kingdom whose business descriptions match “association business consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,009 professional contacts with verified work emails across the full matched dataset. 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 23, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Association business consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “association business consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many association business consulting firms are there based in the United Kingdom?

RevenueBase identified 1,804 company matches for association business consulting firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Quantuma tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most association business consulting firms?

London leads with 637 company records, followed by Manchester (44) and Birmingham (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,009 professional contacts with verified work emails tracked across these 1,804 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 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.