Company lists · Data refreshed September 2026

Top 25 Enterprise strategy consulting firms based in the United Kingdom

RevenueBase identified 6,496 enterprise strategy consulting firms headquartered in the United Kingdom as of September 2026 and tracks 70,678 professional contacts across them, including 28,282 with verified work emails and 7,142 with mobile numbers. London is the largest hub.

This list covers enterprise strategy 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 24, 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 24, 2026 86% judged on-target in blind review
6,496Companies
70,678Contacts tracked
28,282Verified emails
7,142Mobile numbers
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The 25 largest enterprise strategy consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 6,496 enterprise strategy consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise strategy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 24, 202610001+17,070 contacts →

Partial 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 24, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 24, 20265,001-10,0007,396 contacts →

Indirect evidence

“Capco, a Wipro company, is a global technology and management consultancy specializing in driving digital transformation in the financial services industry.”

Source: RevenueBase Database · checked Sep 24, 2026
3Partial evidenceLondon, United KingdomHQ checked Sep 24, 20261,001-5,0002,179 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 24, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 24, 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 24, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 24, 20265,001-10,000329 contacts →

Partial evidence

“We are the global consulting division of Davies, accelerating business, technology and people performance across financial services including Retail Finance & Corporate Banking…”

Source: RevenueBase Database · checked Sep 24, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 24, 2026201-500302 contacts →

Partial 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 24, 2026
7Indirect evidenceKing's Cross, United KingdomHQ checked Sep 24, 2026201-500281 contacts →

Indirect evidence

“Most organisations commit to bold growth ambitions but aren’t set up to deliver them.”

Source: RevenueBase Database · checked Sep 24, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 24, 2026501-1,000275 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 24, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 24, 2026201-500255 contacts →

Partial evidence

“Transform is a fresh alternative to Big Consulting.”

Source: RevenueBase Database · checked Sep 24, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 24, 2026201-500247 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 24, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 24, 2026201-500245 contacts →

Indirect evidence

“Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.”

Source: RevenueBase Database · checked Sep 24, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 24, 2026201-500240 contacts →

Partial 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 24, 2026
13Indirect evidenceGlasgow, United KingdomHQ checked Sep 24, 202651-200229 contacts →

Indirect evidence

“A digital transformation consultancy that turns today's challengers into tomorrow's market leaders.”

Source: RevenueBase Database · checked Sep 24, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 24, 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 24, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 24, 202651-200214 contacts →

Indirect evidence

“Retail Reply helps clients accelerate their response to the opportunities of digital transformation in the retail and consumer sector.”

Source: RevenueBase Database · checked Sep 24, 2026
16Indirect evidencePoole, United KingdomHQ checked Sep 24, 2026201-500210 contacts →

Indirect evidence

“WINNERS!”

Source: RevenueBase Database · checked Sep 24, 2026
17Indirect evidenceTheale, United KingdomHQ checked Sep 24, 202651-200191 contacts →

Indirect evidence

“Clarify helps global Technology companies achieve sustained and significant commercial success.”

Source: RevenueBase Database · checked Sep 24, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 24, 202651-200185 contacts →

Partial evidence

“True North Partners LLP is an independent consulting firm based in London, Johannesburg, Frankfurt, Amsterdam and Madrid.”

Source: RevenueBase Database · checked Sep 24, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 24, 2026201-500178 contacts →

Indirect evidence

“The future has never moved this fast.”

Source: RevenueBase Database · checked Sep 24, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 24, 20265,001-10,000167 contacts →

Indirect evidence

“BIP is the international consultancy for the 21st century with over 6,500 consultants globally daring to make a difference.”

Source: RevenueBase Database · checked Sep 24, 2026
21Indirect evidenceMilton Keynes, United KingdomHQ checked Sep 24, 202651-200166 contacts →

Indirect evidence

“In an uncertain, complex, and ambiguous world, business change is essential and inevitable.”

Source: RevenueBase Database · checked Sep 24, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 24, 2026n/a165 contacts →

Partial evidence

“Strategic development for already dynamic businesses, successful mergers & acquisitions between household names, technology planning in cutting edge industries and real-world…”

Source: RevenueBase Database · checked Sep 24, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 24, 202651-200160 contacts →

Partial evidence

“InterEx Group is becoming the strategic partner of choice for organizations undergoing digital, business, and technology transformation.”

Source: RevenueBase Database · checked Sep 24, 2026
24Indirect evidenceLiverpool Street, United KingdomHQ checked Sep 24, 2026201-500158 contacts →

Indirect evidence

“Contino joined the Cognizant family in 2019.”

Source: RevenueBase Database · checked Sep 24, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 24, 202651-200152 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 24, 2026

Showing 25 of 6,496 enterprise strategy consulting firms based in the United Kingdom

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Enterprise strategy consulting firms based in the United Kingdom at a glance

As of Sep 24, 2026
40.0%Verified-email coverage
10.1%Mobile-number coverage
10.9Average contacts per company
1-10Median size (employees)
42.9%Largest-city concentration · London
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
5,181
11-50
953
51-200
232
201-500
51
501-1,000
9
1,001-5,000
19
5,001-10,000
8
10001+
5

Freshness & accuracy

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

Email last verified

Median 26.0d

Company record updated

Median 75.0d

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 enterprise strategy 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 “enterprise strategy 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 enterprise strategy 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 enterprise strategy 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, 28,282 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 24, 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 enterprise strategy 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 enterprise strategy consulting firms are there based in the United Kingdom?

RevenueBase identified 6,496 enterprise strategy 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 enterprise strategy consulting firms?

London leads with 2788 headquartered companies, followed by Manchester (142) and Bristol (76).

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 28,282 verified decision-maker contacts tracked across these 6,496 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 24, 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.