Company lists · Data refreshed September 2026

Top 25 Middle market management consulting firms based in the United Kingdom

Name: Middle market management 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 28, 2026 2,274 companies tracked

RevenueBase identified 2,274 middle market management consulting firms headquartered in the United Kingdom as of September 2026 and tracks 28,927 professional contacts across them, including 10,800 with verified work emails. London is the largest hub.

This list covers middle market management consulting 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

2,274Companies

28,927Contacts tracked

10,800Verified emails

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The 25 largest middle market management consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 2,274 middle market management consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to middle market management consulting 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	Ey-Parthenon	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	10001+	17,070 contacts →
	Indirect evidence “Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.” Source: RevenueBase Database · checked Sep 28, 2026
2	Elixirr	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	275 contacts →
	Strong evidence “An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Source: RevenueBase Database · checked Sep 28, 2026
3	Athens	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	122 contacts →
	Indirect evidence “Athens helps clients make superior investment decisions and supports them to deliver value from these decisions through timely implementation.” Source: RevenueBase Database · checked Sep 28, 2026
4	Valentia Partners	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	94 contacts →
	Strong evidence “Valentia Partners is a specialist Management Consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
5	Eden Mccallum	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	75 contacts →
	Strong evidence “We redefined management consulting to make it better for clients and better for consultants.” Source: RevenueBase Database · checked Sep 28, 2026
6	Change Management Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	74 contacts →
	Indirect evidence “Whether complex transformation is required across your business or you are seeking support with a small project, we are here to help.” Source: RevenueBase Database · checked Sep 28, 2026
7	Collinson Grant	Indirect evidence	Manchester, United KingdomHQ checked Sep 28, 2026	51-200	50 contacts →
	Indirect evidence “Collinson Grant helps clients throughout the world to improve efficiency and profitability.” Source: RevenueBase Database · checked Sep 28, 2026
8	POE Advisory	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	45 contacts →
	Indirect evidence “Three practice areas built for the demands of PE, family offices, asset managers, investors and portfolio businesses.” Source: RevenueBase Database · checked Sep 28, 2026
9	EOS Deal Advisory	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “At EOS Deal Advisory, our focus is to provide our clients with targeted advice that focusses on driving future value, leverages evolving technologies, and ensures operational…” Source: RevenueBase Database · checked Sep 28, 2026
10	Kindleworth LLP	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
11	Evoke Management	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Partial evidence “Evoke provides expert leadership and management support on issues vital to business success and growth.” Source: RevenueBase Database · checked Sep 28, 2026
12	Wharton Business Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	32 contacts →
	Partial evidence “Wharton Business Consulting advises leaders on maximising value from their organisations, whether that be through post-merger integration, acquisition or transformation.” Source: RevenueBase Database · checked Sep 28, 2026
13	Fairgrove	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “We are an award-winning strategic management consultancy, which exists to create value for its clients by helping them grow profitable sales and complete successful mergers and…” Source: RevenueBase Database · checked Sep 28, 2026
14	Mobas Group	Indirect evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “We pivot businesses and brands to where they need to be.” Source: RevenueBase Database · checked Sep 28, 2026
15	Egremont Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Egremont Group is a globally recognised, award-winning consultancy that helps organisations achieve breakthrough transformation.” Source: RevenueBase Database · checked Sep 28, 2026
16	Sawraj Consultants LTD	Partial evidence	Norwich, United KingdomHQ checked Sep 28, 2026	1-10	24 contacts →
	Partial evidence “Sawraj Consultants Ltd \| Providing Customised Business Solutions Sawraj Consultants Ltd is an upright consulting company that is constantly providing the customised solutions for…” Source: RevenueBase Database · checked Sep 28, 2026
17	Voscap Business Recovery	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “Voscap’s primary objective is to save your business!” Source: RevenueBase Database · checked Sep 28, 2026
18	MTC Consultancy LTD	Partial evidence	Saffron Walden, United KingdomHQ checked Sep 28, 2026	1-10	22 contacts →
	Partial evidence “What We do:` Supporting business leaders through our advisory and support services using high-level management techniques and high-quality, affordable, customised business and…” Source: RevenueBase Database · checked Sep 28, 2026
19	Cooper Young	Indirect evidence	Woodford Green, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “Whether you are thinking about setting up a business, restructuring your current operations or simply looking to avoid downside, we can help develop financial & operational…” Source: RevenueBase Database · checked Sep 28, 2026
20	Evolution Capital	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Evolution Capital is a boutique mid-market M&A and strategic advice firm exclusively serving the technology, media and telecommunications sectors.” Source: RevenueBase Database · checked Sep 28, 2026
21	Rishvi LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Business Management Consultant and Expert” Source: RevenueBase Database · checked Sep 28, 2026
22	Ibees Consulting	Partial evidence	Kettering, United KingdomHQ checked Sep 28, 2026	51-200	20 contacts →
	Partial evidence “Welcome to IBEES Consulting, where innovation meets excellence in providing end-to-end business solutions.” Source: RevenueBase Database · checked Sep 28, 2026
23	Nokamo Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Our vision is to establish brand in the language of the boardroom, evangelising its commercial capacity to energise organisational change.” Source: RevenueBase Database · checked Sep 28, 2026
24	ACZEL	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “Aczel is a management consultancy with a unique difference.” Source: RevenueBase Database · checked Sep 28, 2026
25	Magnus Consulting Certified B Corp	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Strong evidence “Magnus Consulting is a B2B growth consultancy, helping ambitious mid-market, enterprise and PE-backed businesses turn growth ambition into a system that can actually deliver.” Source: RevenueBase Database · checked Sep 28, 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: middle market management consulting 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 middle market management consulting firms.
Partial evidence: Its own public description names part of middle market management consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name middle market management consulting 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 2,274 middle market management consulting firms based in the United Kingdom

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Middle market management consulting firms based in the United Kingdom at a glance

As of Sep 28, 2026

37.3%Verified-email coverage

12.7Average contacts per company

1-10Median size (employees)

32.8%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,960

11-50

226

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 2,274 companies.

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 middle market management consulting 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 the United Kingdom whose own description of what they do matches “middle market management consulting 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 middle market management consulting 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 middle market management consulting 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 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, 10,800 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 28, 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.

Middle market management consulting firms by metro

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 middle market management consulting 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 middle market management consulting firms are there based in the United Kingdom?

RevenueBase identified 2,274 middle market management consulting 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?

Ey-Parthenon, headquartered in London, tops this list with the largest team on record.

Which city has the most middle market management consulting firms?

London leads with 747 headquartered companies, followed by Manchester (46) and Glasgow (31).

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 10,800 verified decision-maker contacts tracked across these 2,274 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 28, 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.