Company lists · Data refreshed September 2026

Top 25 Lean consultancies worldwide

Name: Lean consultancies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 15,814 companies tracked

RevenueBase identified 15,814 lean consultancies worldwide as of September 2026 and tracks 81,763 professional contacts across them, including 16,060 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers lean consultancies worldwide, 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 28, 2026. Country and city lists for lean consultancies follow the table.

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 28, 2026 86% judged on-target in blind review

15,814Companies

81,763Contacts tracked

16,060Verified emails

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The 25 largest lean consultancies worldwide

Ranked by team size

Top 25 of 15,814 lean consultancies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to lean consultancies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Propia AB	Indirect evidence	Norrköping, SwedenHQ checked Sep 28, 2026	n/a	2,448 contacts →
	Indirect evidence “Propia is a Consultant Company offering competence and proven methodology within Operational Excellence.” Source: RevenueBase Database · checked Sep 28, 2026
2	ACE	Partial evidence	CanadaHQ checked Sep 28, 2026	n/a	1,915 contacts →
	Partial evidence “consulting firm in quality and environmental management system, quality control,quality assurance and lean manufacturing and productivity improvement.” Source: RevenueBase Database · checked Sep 28, 2026
3	SEI	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 28, 2026	501-1,000	618 contacts →
	Indirect evidence “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: RevenueBase Database · checked Sep 28, 2026
4	Culturelligence	Indirect evidence	Bengaluru, IndiaHQ checked Sep 28, 2026	n/a	408 contacts →
	Indirect evidence “Culturelligence drives organizational transformation by energizing and engaging leaders and employees as change champions.” Source: RevenueBase Database · checked Sep 28, 2026
5	Kaizen Institute Global	Indirect evidence	Zug, SwitzerlandHQ checked Sep 28, 2026	501-1,000	406 contacts →
	Indirect evidence “The Operating System for Continuous Improvement.” Source: RevenueBase Database · checked Sep 28, 2026
6	Tokio Marine Life Insurance Malaysia BHD	Indirect evidence	Jalan Todak 5, MalaysiaHQ checked Sep 28, 2026	201-500	376 contacts →
	Indirect evidence “Tokio Marine Life Insurance Malaysia Bhd is a management consulting company based out of 11 Bangunan Tm Asia Life, Jalan Todak 5, Malaysia.” Source: RevenueBase Database · checked Sep 28, 2026
7	KLB	Indirect evidence	Vincennes, MexicoHQ checked Sep 28, 2026	501-1,000	363 contacts →
	Indirect evidence “KLB Group is an international consulting firm specializing in operational performance for more than 25 years and bringing together nearly 750 employees worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
8	Gemba Concepts	Indirect evidence	Bengaluru, IndiaHQ checked Sep 28, 2026	51-200	280 contacts →
	Indirect evidence “Founded in 2014 by former Toyota professionals Mohit Bafna and Abhishek Kumar, Gemba Concepts was built on a single belief: excellence is not an act, but a habit embedded in daily…” Source: RevenueBase Database · checked Sep 28, 2026
9	Skender	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	275 contacts →
	Indirect evidence “The premier construction experience.” Source: RevenueBase Database · checked Sep 28, 2026
10	Brandt Business Services	Indirect evidence	Kuala Lumpur, MalaysiaHQ checked Sep 28, 2026	501-1,000	268 contacts →
	Indirect evidence “Built on the company’s core expertise, Brandt helps organizations achieve enhanced service levels through transforming the approach, performance, quality and efficiency of the…” Source: RevenueBase Database · checked Sep 28, 2026
11	Cargaison Express	Indirect evidence	Mohali, IndiaHQ checked Sep 28, 2026	201-500	254 contacts →
	Indirect evidence “At Cargaison Express, we're not just an outsourcing company but your dedicated partners in scaling your business to new heights.” Source: RevenueBase Database · checked Sep 28, 2026
12	Atos Information Technology Gmbh	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 28, 2026	10001+	251 contacts →
	Indirect evidence “Atos Information Technology GmbH is a management consulting company” Source: RevenueBase Database · checked Sep 28, 2026
13	Ijssel Technology Services	Indirect evidence	Zwolle, NetherlandsHQ checked Sep 28, 2026	201-500	236 contacts →
	Indirect evidence “The market is constantly looking for product development and innovation.” Source: RevenueBase Database · checked Sep 28, 2026
14	Funcional	Indirect evidence	Cascavel, BrazilHQ checked Sep 28, 2026	51-200	222 contacts →
	Indirect evidence “Com o propósito de transformar, potencializar e perpetuar negócios, apoiamos as empresas na gestão empresarial de resultado.” Source: RevenueBase Database · checked Sep 28, 2026
15	Thought Logic Consulting	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	201-500	219 contacts →
	Indirect evidence “Thought logic is a functionally-led, digitally enabled consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
16	Sparke & Keane	Partial evidence	Eindhoven, NetherlandsHQ checked Sep 28, 2026	51-200	214 contacts →
	Partial evidence “Wij zijn experts in Strategy Consulting, Lean Project & Project Management, Digital Transformation, Finance & Control en Business Intelligence.” Source: RevenueBase Database · checked Sep 28, 2026
17	RLG International	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	51-200	209 contacts →
	Indirect evidence “RLG International is a performance-focused consulting firm specializing in the on-site implementation of measurable improvement initiatives.” Source: RevenueBase Database · checked Sep 28, 2026
18	USC Consulting Group	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	51-200	204 contacts →
	Indirect evidence “USC Consulting Group (USCCG) is an operations management and process improvement firm that empowers your people.” Source: RevenueBase Database · checked Sep 28, 2026
19	Addovation	Indirect evidence	Drammen, NorwayHQ checked Sep 28, 2026	51-200	202 contacts →
	Indirect evidence “At Addovation, we help businesses optimize their operations with tailored business solutions.” Source: RevenueBase Database · checked Sep 28, 2026
20	Elastiq-Connect The Fitlance Company	Indirect evidence	's-hertogenbosch, NetherlandsHQ checked Sep 28, 2026	201-500	200 contacts →
	Indirect evidence “Een nieuwe kijk op de wereld.” Source: RevenueBase Database · checked Sep 28, 2026
21	Compulink	Indirect evidence	St. Petersburg, FL, United StatesHQ checked Sep 28, 2026	201-500	189 contacts →
	Indirect evidence “Compulink is a performance based company that is focused on continuous improvement in our practices and procedures as well as the quality of service to our customers.” Source: RevenueBase Database · checked Sep 28, 2026
22	Sisteplant	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	181 contacts →
	Indirect evidence “Industrial engineering and consultancy firm focused on improving operations profitability, through the deployment of optimized manufacturing, logistics and management/auxiliary…” Source: RevenueBase Database · checked Sep 28, 2026
23	EIDRA	Indirect evidence	Stockholm, SwedenHQ checked Sep 28, 2026	1,001-5,000	178 contacts →
	Indirect evidence “Eidra is a consultancy collective combining consulting, creativity, engineering and data to help leaders create great change.” Source: RevenueBase Database · checked Sep 28, 2026
24	Lean SIX Sigma Institute	Partial evidence	Coronado, CA, United StatesHQ checked Sep 28, 2026	51-200	178 contacts →
	Partial evidence “Lean Six Sigma Institute provides comprehensive training and consulting services designed to help organizations navigate the challenges of today’s global marketplace.” Source: RevenueBase Database · checked Sep 28, 2026
25	Tactio	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	166 contacts →
	Indirect evidence “Diriges una empresa y notas que su crecimiento depende demasiado de ti?” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: lean consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names lean consultancies.
Partial evidence: Its own public description names part of lean consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name lean consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 15,814 lean consultancies worldwide

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Lean consultancies worldwide at a glance

As of Sep 28, 2026

19.6%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

12,748

11-50

2,453

51-200

424

201-500

103

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 consultancies, 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.
Coverage: Every country. Country and city lists for lean consultancies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “lean consultancies”. 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 lean consultancies), 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 lean consultancies, and records with no verified work email.
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, 16,060 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 28, 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 consultancies by location

71 lists · largest first

Every Lean consultancies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 lean consultancies, 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 lean consultancies are there worldwide?

RevenueBase identified 15,814 lean consultancies worldwide 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?

Propia AB, headquartered in Norrkoping, tops this list with the largest team on record.

Which country has the most lean consultancies?

The United States leads with 2,999 companies, followed by Brazil (1,329) and the United Kingdom (943). Every lean consultancies list by country and city is linked on this page.

Which city has the most lean consultancies?

Sao Paulo leads with 269 headquartered companies, followed by London (229) and Paris (140).

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 16,060 verified decision-maker contacts tracked across these 15,814 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 28, 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.