Company lists · Data refreshed September 2026

Top 25 Business improvement consulting firms based in London, United Kingdom

Name: Business improvement consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 1,621 companies tracked

RevenueBase identified 1,621 company matches for business improvement consulting firms associated with London, United Kingdom as of September 2026 and tracks 11,889 professional contacts across them, including 3,499 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for business improvement consulting firms associated with London, 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

1,621Companies

11,889Contacts tracked

3,499Verified emails

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The 25 largest business improvement consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 1,621 company matches for business improvement consulting firms based in London, 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	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
2	Moorhouse B Corp Certified	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	247 contacts →
	Exact match “We’re a dynamic consulting firm, focused on delivering change.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Percipere	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	245 contacts →
	Exact match “Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	Albany Beck	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	240 contacts →
	Exact match “Albany Beck is a client-first consulting firm helping financial services organisations deliver complex change and build capability, not dependency.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Clarasys	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	170 contacts →
	Exact match “We are an employee-owned, award-winning international consulting firm that believes there’s a better way to do consultancy.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	CVL	Exact match	London, United KingdomHQ recorded Sep 23, 2026	n/a	165 contacts →
	Exact match “Strategic development for already dynamic businesses, successful mergers & acquisitions between household names, technology planning in cutting edge industries and real-world…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	ORG	Exact match	London, United KingdomHQ recorded Sep 23, 2026	1,001-5,000	139 contacts →
	Exact match “We believe that change is an opportunity to thrive.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	Athens	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	122 contacts →
	Exact match “Athens helps clients make superior investment decisions and supports them to deliver value from these decisions through timely implementation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	Chartwell	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	117 contacts →
	Exact match “Chartwell is a global operations consultancy with offices in London, Boston and Hamburg.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	Oaklin	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	115 contacts →
	Exact match “Oaklin is an independent management consultancy.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	Humanhire Corp	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	104 contacts →
	Exact match “HumanHire Corp established in 2014 focuses to provide the most reliable and relevant resources based on client needs.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Valentia Partners	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	94 contacts →
	Exact match “Valentia Partners is a specialist Management Consulting firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	Growth HUB	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	85 contacts →
	Exact match “Growth Hub embeds operational teams inside professional services firms.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Proservartner	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	84 contacts →
	Exact match “Proservartner is an international consulting firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Simpler Consulting, An IBM Company	Exact match	London, United KingdomHQ recorded Sep 23, 2026	n/a	84 contacts →
	Exact match “With Simpler as your lean-transformation partner, you can achieve long-term success.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Cambridge Management Consulting	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	82 contacts →
	Exact match “Cambridge Management Consulting (Cambridge MC) is an international consulting firm that helps companies of all sizes have a better impact on the world.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	PEN	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	76 contacts →
	Exact match “We’re a specialist, management consultancy, focusing on; Customer Experience, Operational Excellence and Change Delivery, dedicated to helping our clients create real, positive…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Eden Mccallum	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	75 contacts →
	Exact match “We redefined management consulting to make it better for clients and better for consultants.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Change Management Group	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	74 contacts →
	Exact match “Whether complex transformation is required across your business or you are seeking support with a small project, we are here to help.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	Punter Southall	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	72 contacts →
	Exact match “Punter Southall is a group of companies with one aim – helping businesses and people make better decisions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	Catalyst Consulting	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	63 contacts →
	Exact match “For more than 30 years, Catalyst has partnered with organisations to enable results.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Xlr8	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	59 contacts →
	Exact match “Consult us for.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	Synapx	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	40 contacts →
	Exact match “Award-winning global consulting experts, blending top-tier consulting and development skills with a cross-functional team, including MVPs who are delivering cost-effective…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	Inforom	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	38 contacts →
	Exact match “Inforom Consultancy Services helps companies expand, strengthen and launch Internationally.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	Evoke Management	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	35 contacts →
	Exact match “Evoke provides expert leadership and management support on issues vital to business success and growth.” 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 “business improvement 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 1,621 business improvement consulting firms based in London, United Kingdom

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Business improvement consulting firms based in London, United Kingdom at a glance

As of Sep 23, 2026

29.4%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

1,267

11-50

259

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 1,621 companies.

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 London, United Kingdom whose business descriptions match “business improvement 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 3,499 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.

Business improvement consulting firms by metro in the United Kingdom

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 “business improvement consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business improvement consulting firms are there based in London, United Kingdom?

RevenueBase identified 1,621 company matches for business improvement consulting firms associated with London, 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?

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

Which city in the United Kingdom has the most business improvement consulting firms?

London leads the United Kingdom with 1,621 company records, followed by Manchester (104) and Birmingham (60).

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 3,499 professional contacts with verified work emails tracked across these 1,621 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.