Company lists · Data refreshed September 2026

Top 21 Lean consulting firms based in the United Kingdom

Name: Lean 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 4, 2026 1,286 companies tracked

RevenueBase identified 1,286 company matches for lean consulting firms associated with the United Kingdom as of September 2026 and tracks 4,290 professional contacts across them, including 1,375 with verified work emails and 399 with mobile numbers. London is the largest hub.

This list covers company matches for lean 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 4, 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 4, 2026 How this list was built

1,286Companies

4,290Contacts tracked

1,375Verified emails

399Mobile numbers

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The 21 largest lean consulting firms based in the United Kingdom

Ranked by team size

Top 21 of 1,286 company matches for lean consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 4, 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	Chartwell	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	116 contacts →
	Exact match “We deliver rapid, remarkable and sustainable productivity gains for manufacturing leaders.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
2	Growth HUB	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	84 contacts →
	Exact match “At Growth Hub, we help organisations streamline processes, harness data effectively, and make informed decisions.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
3	Proservartner	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	82 contacts →
	Exact match “Proservartner is an international consulting firm.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
4	PEN	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	75 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 4, 2026 · View company records in RevenueBase
5	Change Management Group	Exact match	London, United KingdomHQ recorded Sep 4, 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 4, 2026 · View company records in RevenueBase
6	Sharing In Growth	Exact match	Derby, United KingdomHQ recorded Sep 4, 2026	51-200	74 contacts →
	Exact match “Our passionate team of growth and productivity specialists work with you to develop, inspire and improve every aspect of your organisation.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
7	Collinson Grant	Exact match	Manchester, United KingdomHQ recorded Sep 4, 2026	51-200	49 contacts →
	Exact match “Collinson Grant helps clients throughout the world to improve efficiency and profitability.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
8	Synapx	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	42 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 4, 2026 · View company records in RevenueBase
9	Regency Grove Consultants	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	37 contacts →
	Exact match “At Regency Grove we pride ourselves on providing each client with an exceptional standard of service to suit their specific needs and requirements.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
10	Develop Consulting	Exact match	Coventry, United KingdomHQ recorded Sep 4, 2026	11-50	36 contacts →
	Exact match “From the team that built KM & T, developed the 'Productive Series' and delivered world-class improvement techniques across the globe, Develop Consulting is a UK-wide improvement…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
11	CQM Training And Consultancy LTD	Exact match	Chesterfield, United KingdomHQ recorded Sep 4, 2026	11-50	35 contacts →
	Exact match “We are a highly respected training and consultancy organisation specialising in business and process improvement with over 30 years experience of developing practical, performance…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
12	Libra Europe	Exact match	Manchester, United KingdomHQ recorded Sep 4, 2026	11-50	35 contacts →
	Exact match “Libra Europe \| The Operational Implementation People We are operations experts who truly understand technology.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
13	Oliver Wight Eame LLP	Exact match	Gloucester, United KingdomHQ recorded Sep 4, 2026	11-50	33 contacts →
	Exact match “Oliver Wight inspires people and organisations to achieve greatness.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
14	Rethink Productivity	Exact match	Shrewsbury, United KingdomHQ recorded Sep 4, 2026	11-50	28 contacts →
	Exact match “For over 15 years ReThink have supported companies to optimise their productivity and right size their operating models – typically saving circa 5% operating costs.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
15	Geneo Software	Exact match	Leamington Spa, United KingdomHQ recorded Sep 4, 2026	11-50	27 contacts →
	Exact match “Geneo was set up in 2007 to pursue software solutions for operational excellence.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
16	Jigsaw Business Group	Exact match	Washington, United KingdomHQ recorded Sep 4, 2026	11-50	22 contacts →
	Exact match “The Jigsaw Business Group provides a range of services to help organisations improve their people, processes and profitability.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
17	CI Projects	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	21 contacts →
	Exact match “CI Projects helps businesses continuously improve by enabling the true convergence of people, processes and technology.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
18	Bourton Group LLP	Exact match	Northampton, United KingdomHQ recorded Sep 4, 2026	11-50	20 contacts →
	Exact match “We are passionate about improving our client’s operations.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
19	ACZEL	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	18 contacts →
	Exact match “Aczel is a management consultancy with a unique difference.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
20	KCTS	Exact match	Prenton, United KingdomHQ recorded Sep 4, 2026	11-50	18 contacts →
	Exact match “Kaizen Consultancy & Training Services Based on the Wirral, UK Help manufacturers continually improve Application of Lean, Six Sigma & Total Productive Maintenance (TPM) Proven…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
21	Simpletin Consulting	Exact match	St Albans, United KingdomHQ recorded Sep 4, 2026	1-10	18 contacts →
	Exact match “Simpletin Consulting where things are made simple.” Recorded in the RevenueBase company graph · Sep 4, 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 “lean 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 21 of 1,286 lean consulting firms based in the United Kingdom

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Lean consulting firms based in the United Kingdom at a glance

As of Sep 4, 2026

32.1%Verified-email coverage

9.3%Mobile-number coverage

3.3Average contacts per company

1-10Median size (employees)

23.6%Largest-city concentration · London

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

1,049

11-50

137

51-200

501-1,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

10431–60

73861–90

52290–180

11180+

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 “lean 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 1,375 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 4, 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.

Lean consulting firms by metro

Lean consulting firms in London304

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

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

RevenueBase identified 1,286 company matches for lean 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?

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

Which city has the most lean consulting firms?

London leads with 304 company records, followed by Manchester (29) and Birmingham (21).

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 1,375 professional contacts with verified work emails tracked across these 1,286 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 4, 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.