Company lists · Data refreshed September 2026

Top 23 Lean management consulting companies based in the United Kingdom

RevenueBase identified 505 lean management consulting companies headquartered in the United Kingdom as of September 2026 and tracks 1,867 professional contacts across them, including 577 with verified work emails and 206 with mobile numbers. London is the largest hub.

This list covers lean management consulting companies 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, how directly it supports the match, and when it was last checked. 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
505Companies
1,867Contacts tracked
577Verified emails
206Mobile numbers
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The 23 largest lean management consulting companies based in the United Kingdom

Ranked by team size
Top 23 of 505 lean management consulting companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names lean management consulting companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
ChartwellIndirect evidence
London, United KingdomHQ checked Sep 4, 202651-200116

“We deliver rapid, remarkable and sustainable productivity gains for manufacturing leaders.”

Source: company website · checked Sep 4, 2026
2
Growth HUBIndirect evidence
London, United KingdomHQ checked Sep 4, 202651-20084

“At Growth Hub, we help organisations streamline processes, harness data effectively, and make informed decisions.”

Source: company website · checked Sep 4, 2026
3
Develop ConsultingPartial evidence
Coventry, United KingdomHQ checked Sep 4, 202611-5036

“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…”

Source: company website · checked Sep 4, 2026
4Chesterfield, United KingdomHQ checked Sep 4, 202611-5035

“We are a highly respected training and consultancy organisation specialising in business and process improvement with over 30 years experience of developing practical, performance…”

Source: company website · checked Sep 4, 2026
5
Oliver Wight Eame LLPIndirect evidence
Gloucester, United KingdomHQ checked Sep 4, 202611-5033

“Oliver Wight inspires people and organisations to achieve greatness.”

Source: company website · checked Sep 4, 2026
6
Rethink ProductivityIndirect evidence
Shrewsbury, United KingdomHQ checked Sep 4, 202611-5028

“For over 15 years ReThink have supported companies to optimise their productivity and right size their operating models – typically saving circa 5% operating costs.”

Source: company website · checked Sep 4, 2026
7
Geneo SoftwareIndirect evidence
Leamington Spa, United KingdomHQ checked Sep 4, 202611-5027

“Geneo was set up in 2007 to pursue software solutions for operational excellence.”

Source: company website · checked Sep 4, 2026
8
Bourton Group LLPIndirect evidence
Northampton, United KingdomHQ checked Sep 4, 202611-5020

“We are passionate about improving our client’s operations.”

Source: company website · checked Sep 4, 2026
9
KCTSPartial evidence
Prenton, United KingdomHQ checked Sep 4, 202611-5018

“Kaizen Consultancy & Training Services Based on the Wirral, UK Help manufacturers continually improve Application of Lean, Six Sigma & Total Productive Maintenance (TPM) Proven…”

Source: company website · checked Sep 4, 2026
10
Project7 ConsultancyIndirect evidence
Mildenhall, United KingdomHQ checked Sep 4, 202651-20015

“Unlocking Organisational Excellence Project7 (P7C) are Global Performance Improvement Specialists, transforming organisations by rapidly solving business problems and delivering…”

Source: company website · checked Sep 4, 2026
11
Fluere LTDIndirect evidence
Rawdon, United KingdomHQ checked Sep 4, 20261-1012

“If you’re fed up with your business not operating at it’s full potential, then you’re not alone.”

Source: company website · checked Sep 4, 2026
12
Evbex - ConsultingStrong evidence
Caerphilly, United KingdomHQ checked Sep 4, 20261-1012

“We deliver a range of agile and lean facilities management service consulting solutions that will benefit your business.”

Source: company website · checked Sep 4, 2026
13
Complete Lean SolutionsPartial evidence
Harrogate, United KingdomHQ checked Sep 4, 202611-5010

“Complete lean solutions are hands on business improvement specialists.”

Source: company website · checked Sep 4, 2026
14Aberdeen, United KingdomHQ checked Sep 4, 202611-509

“At PBI, we don’t just teach transformation, we deliver it.”

Source: company website · checked Sep 4, 2026
15
Chasm LTDIndirect evidence
Buckingham, United KingdomHQ checked Sep 4, 20261-109

“Chasm fix factories by identifying the best processes to then build the right systems for people to run.”

Source: company website · checked Sep 4, 2026
16Birmingham, United KingdomHQ checked Sep 4, 20261-109

“Asarya Consulting and Training is a highly experienced consultancy with a deep experience of delivering sustained improvement in operational, market and financial business…”

Source: company website · checked Sep 4, 2026
17
Breakthrough PartnersPartial evidence
United KingdomHQ checked Sep 4, 202611-508

“Meet Breakthrough Partners Over multiple decades, the Breakthrough Partners team has successfully supported the implementation of Lean Business Systems in 40+ global organisations.”

Source: company website · checked Sep 4, 2026
18
StraktIndirect evidence
Birmingham, United KingdomHQ checked Sep 4, 202611-508

“We are trying to solve a global problem: As Human beings we are spending too much of our energy and the planet’s resources on work that adds no value at all.”

Source: company website · checked Sep 4, 2026
19
Neways LTDIndirect evidence
Cheltenham, United KingdomHQ checked Sep 4, 20261-106

“Keeping business operations & supply chains in shape and fit for the future We provide expert advice and analysis from our team of experienced practitioners in activating best…”

Source: company website · checked Sep 4, 2026
20
CastlefirthIndirect evidence
Newcastle Under Lyme, United KingdomHQ checked Sep 4, 202611-506

“At Castlefirth, our mission is to enable efficient and effective organisations by building breakthrough improvement strategies that reduce costs, improve performance, and drive…”

Source: company website · checked Sep 4, 2026
21
Aspen GlobalIndirect evidence
Warwick, United KingdomHQ checked Sep 4, 20261-106

“Aspen Global has an impressive pedigree.”

Source: company website · checked Sep 4, 2026
22
Probe-RtsIndirect evidence
Pencoed, United KingdomHQ checked Sep 4, 202611-506

“OUR MISSION Through knowledge transfer, either in a training capacity or through mentoring and interim resource provision, the Probe business model is designed to provide…”

Source: company website · checked Sep 4, 2026
23Henley On Thames, United KingdomHQ checked Sep 4, 202611-506

“Direction And Knowledge (DAK) is our name and our mission.”

Source: company website · checked Sep 4, 2026

Showing 23 of 505 lean management consulting companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 577 reachable decision-makers.

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Lean management consulting companies based in the United Kingdom at a glance

As of Sep 4, 2026
1-10Median size (employees)
LondonLargest hub · 100 HQs
206Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
424
11-50
61
51-200
10

Verified emails by last verification

0–30
0
31–60
47
61–90
310
90–180
215
180+
5

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 lean management consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “lean management consulting companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among lean management consulting companies, 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 an evidence 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, 577 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 4, 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.

Lean management consulting companies by metro

  • Lean management consulting companies in London100

Frequently asked

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

RevenueBase identified 505 lean management consulting companies 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?

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

Which city has the most lean management consulting companies?

London leads with 100 headquartered companies, followed by Nottingham (10) and Birmingham (8).

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 577 verified decision-maker contacts tracked across these 505 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 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.