Company lists · Data refreshed September 2026

Top 23 Business management consultants based in London, United Kingdom

RevenueBase identified 3,241 business management consultants headquartered in London, United Kingdom as of September 2026 and tracks 21,401 professional contacts across them, including 9,001 with verified work emails and 1,934 with mobile numbers. London is the largest hub.

This list covers business management consultants 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 8, 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 8, 2026 86% judged on-target in blind review
3,241Companies
21,401Contacts tracked
9,001Verified emails
1,934Mobile numbers
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The 23 largest business management consultants based in London, United Kingdom

Ranked by team size
Top 23 of 3,241 business management consultants based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to business management consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 8, 20261,001-5,0002,179 contacts →

Indirect evidence

“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.”

Source: RevenueBase Database · checked Sep 8, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 8, 2026501-1,0001,011 contacts →

Partial evidence

“At OC & C Strategy Consultants we have more than 35 years of experience at unpicking the most complex business challenges with simple, uncommon sense™.”

Source: RevenueBase Database · checked Sep 8, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 8, 202610001+329 contacts →

Indirect evidence

“At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.”

Source: RevenueBase Database · checked Sep 8, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 8, 2026201-500302 contacts →

Indirect evidence

“Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…”

Source: RevenueBase Database · checked Sep 8, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 8, 2026501-1,000275 contacts →

Indirect evidence

“An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.”

Source: RevenueBase Database · checked Sep 8, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 8, 2026201-500247 contacts →

Indirect evidence

“We’re a dynamic consulting firm, focused on delivering change.”

Source: RevenueBase Database · checked Sep 8, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 8, 2026201-500240 contacts →

Indirect evidence

“Albany Beck is a client-first consulting firm helping financial services organisations deliver complex change and build capability, not dependency.”

Source: RevenueBase Database · checked Sep 8, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 8, 2026201-500216 contacts →

Indirect evidence

“Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.”

Source: RevenueBase Database · checked Sep 8, 2026
9Indirect evidenceLondon, United KingdomHQ checked Sep 8, 2026201-500178 contacts →

Indirect evidence

“The future has never moved this fast.”

Source: RevenueBase Database · checked Sep 8, 2026
10Strong evidenceLondon, United KingdomHQ checked Sep 8, 202651-200152 contacts →

Strong evidence

“Founded in 1990, The Berkeley Partnership is an independent management consultancy, specialising in business transformation.”

Source: RevenueBase Database · checked Sep 8, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 8, 202651-200140 contacts →

Indirect evidence

“Business Science Corporation apply science and technology in order to ensure that our clients significantly increase their performance by giving them both the knowledge to perform…”

Source: RevenueBase Database · checked Sep 8, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 8, 20261,001-5,000139 contacts →

Indirect evidence

“We believe that change is an opportunity to thrive.”

Source: RevenueBase Database · checked Sep 8, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 8, 202651-200134 contacts →

Partial evidence

“Winners of the UKOUG Business Transformation Advisory Partner of the Year Award 2025 Veran Performance is an advisory consultancy specialising in HR, Payroll, Procurement and…”

Source: RevenueBase Database · checked Sep 8, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 8, 202611-50122 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 8, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 8, 202651-200118 contacts →

Partial evidence

“WHO WE ARE Glue Reply is a business consultancy that strives to help its clients achieve their future potential by developing solutions that often for the first time align IT…”

Source: RevenueBase Database · checked Sep 8, 2026
16Partial evidenceLondon, United KingdomHQ checked Sep 8, 202651-200117 contacts →

Partial evidence

“Chartwell is a global operations consultancy with offices in London, Boston and Hamburg.”

Source: RevenueBase Database · checked Sep 8, 2026
17Strong evidenceLondon, United KingdomHQ checked Sep 8, 202651-200115 contacts →

Strong evidence

“Oaklin is an independent management consultancy.”

Source: RevenueBase Database · checked Sep 8, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 8, 202651-20094 contacts →

Partial evidence

“Valentia Partners is a specialist Management Consulting firm.”

Source: RevenueBase Database · checked Sep 8, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 8, 202611-5087 contacts →

Indirect evidence

“Complex transformation, expertly navigated.”

Source: RevenueBase Database · checked Sep 8, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 8, 202651-20085 contacts →

Indirect evidence

“Growth Hub embeds operational teams inside professional services firms.”

Source: RevenueBase Database · checked Sep 8, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 8, 202651-20084 contacts →

Indirect evidence

“Proservartner is an international consulting firm.”

Source: RevenueBase Database · checked Sep 8, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 8, 2026n/a84 contacts →

Indirect evidence

“With Simpler as your lean-transformation partner, you can achieve long-term success.”

Source: RevenueBase Database · checked Sep 8, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 8, 202651-20082 contacts →

Partial evidence

“Cambridge Management Consulting (Cambridge MC) is an international consulting firm that helps companies of all sizes have a better impact on the world.”

Source: RevenueBase Database · checked Sep 8, 2026

Showing 23 of 3,241 business management consultants based in London, United Kingdom

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Business management consultants based in London, United Kingdom at a glance

As of Sep 8, 2026
42.1%Verified-email coverage
9.0%Mobile-number coverage
6.6Average contacts per company
1-10Median size (employees)
98.2%Largest-city concentration · London
Sep 8, 2026Page data refreshed

Companies by employee count

1-10
2,548
11-50
532
51-200
108
201-500
26
501-1,000
4
1,001-5,000
9
5,001-10,000
1
10001+
3

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 business management consultants, 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 “business management consultants”. 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 business management consultants), 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 business management consultants, 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, 9,001 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 8, 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.

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 business management consultants, 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 business management consultants are there based in London, United Kingdom?

RevenueBase identified 3,241 business management consultants 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?

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

Which city has the most business management consultants?

London leads with 3182 headquartered companies, followed by Manchester (232) and Glasgow (120).

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 9,001 verified decision-maker contacts tracked across these 3,241 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 8, 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.