Company lists · Data refreshed September 2026

Top 25 Lean consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 18,055 companies tracked

RevenueBase identified 18,055 lean consulting firms worldwide as of September 2026 and tracks 109,462 professional contacts across them, including 26,548 with verified work emails and 14,524 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers lean consulting firms 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 4, 2026. Country and city lists for lean consulting firms 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 4, 2026 86% judged on-target in blind review

18,055Companies

109,462Contacts tracked

26,548Verified emails

14,524Mobile numbers

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The 25 largest lean consulting firms worldwide

Ranked by team size

Top 25 of 18,055 lean consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to lean 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Propia AB	Indirect evidence	Norrköping, SwedenHQ checked Sep 4, 2026	n/a	2,447 contacts →
	Indirect evidence “Propia is a Consultant Company offering competence and proven methodology within Operational Excellence.” Source: RevenueBase Database · checked Sep 4, 2026
2	Nihilent	Partial evidence	Pune, IndiaHQ checked Sep 4, 2026	1,001-5,000	1,722 contacts →
	Partial evidence “Nihilent is a Global Consulting and Services Company using a human-centred approach for problem-solving and change management, Nihilent’s comprehensive range of expertise in…” Source: RevenueBase Database · checked Sep 4, 2026
3	Argon & CO	Indirect evidence	Levallois-perret, FranceHQ checked Sep 4, 2026	501-1,000	874 contacts →
	Indirect evidence “Argon & Co is a global management consultancy that specialises in operations strategy and transformation.” Source: RevenueBase Database · checked Sep 4, 2026
4	Visiativ	Indirect evidence	Lyon, FranceHQ checked Sep 4, 2026	1,001-5,000	756 contacts →
	Indirect evidence “Through innovation and digitalisation, Visiativ delivers smarter ways of working that help businesses become more agile, efficient and collaborative.” Source: RevenueBase Database · checked Sep 4, 2026
5	SEI	Partial evidence	Cincinnati, PA, United StatesHQ checked Sep 4, 2026	501-1,000	611 contacts →
	Partial evidence “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: RevenueBase Database · checked Sep 4, 2026
6	Efeso Management Consultants	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	1,001-5,000	587 contacts →
	Indirect evidence “At EFESO Management Consultants, we partner with industrial leaders to build stronger, more resilient and future ready operations, enabling their organizations to outperform in an…” Source: RevenueBase Database · checked Sep 4, 2026
7	Julhiet Sterwen	Partial evidence	Neuilly Sur Seine, FranceHQ checked Sep 4, 2026	501-1,000	557 contacts →
	Partial evidence “julhiet sterwen is a key player in management, human resources and operational consulting.” Source: RevenueBase Database · checked Sep 4, 2026
8	DLC	Partial evidence	Chicago, CA, United StatesHQ checked Sep 4, 2026	201-500	541 contacts →
	Partial evidence “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: RevenueBase Database · checked Sep 4, 2026
9	Analytix Business Solutions India Pvt. LTD	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 4, 2026	501-1,000	504 contacts →
	Indirect evidence “One Company Limitless Possibilities” Source: RevenueBase Database · checked Sep 4, 2026
10	Vector Consulting Group	Indirect evidence	Thane West, IndiaHQ checked Sep 4, 2026	201-500	436 contacts →
	Indirect evidence “Using our unique engagement & solutions approach to management consultancy, we help clients solve chronic problems in supply chain, operations, sales & distribution, new product…” Source: RevenueBase Database · checked Sep 4, 2026
11	Sendero	Partial evidence	Dallas, AZ, United StatesHQ checked Sep 4, 2026	201-500	415 contacts →
	Partial evidence “Sendero is a management consulting firm that optimizes technology, improves operations, advances workforce productivity, and enhances customer experience-all to deliver tangible…” Source: RevenueBase Database · checked Sep 4, 2026
12	Kaizen Institute Global	Indirect evidence	Zug, SwitzerlandHQ checked Sep 4, 2026	501-1,000	400 contacts →
	Indirect evidence “The Operating System for Continuous Improvement.” Source: RevenueBase Database · checked Sep 4, 2026
13	Tokio Marine Life Insurance Malaysia BHD	Partial evidence	Jalan Todak 5, MalaysiaHQ checked Sep 4, 2026	201-500	376 contacts →
	Partial 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 4, 2026
14	KLB	Partial evidence	Vincennes, NJ, FranceHQ checked Sep 4, 2026	501-1,000	363 contacts →
	Partial 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 4, 2026
15	Meotec	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 4, 2026	501-1,000	310 contacts →
	Partial evidence “Since 2005, Meotec's vision has been to position itself as an operational consulting firm evolving between strategy consulting firms and engineering companies.” Source: RevenueBase Database · checked Sep 4, 2026
16	Okin Process	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	501-1,000	306 contacts →
	Indirect evidence “At OKIN Process, we won’t just lighten your workload.” Source: RevenueBase Database · checked Sep 4, 2026
17	Assyst	Indirect evidence	Sterling, MD, United StatesHQ checked Sep 4, 2026	51-200	289 contacts →
	Indirect evidence “ASSYST is an agile, CMMI Level 3 certified firm that simplifies IT and business processes, removes unnecessary redundancy, and delivers actionable insights for faster, smarter…” Source: RevenueBase Database · checked Sep 4, 2026
18	H&z Management Consulting	Indirect evidence	München, GermanyHQ checked Sep 4, 2026	501-1,000	287 contacts →
	Indirect evidence “Welcome to H&Z We offer more than successful strategy development.” Source: RevenueBase Database · checked Sep 4, 2026
19	Gemba Concepts	Indirect evidence	Bengaluru, IndiaHQ checked Sep 4, 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 4, 2026
20	Skender	Indirect evidence	Chicago, IN, United StatesHQ checked Sep 4, 2026	201-500	272 contacts →
	Indirect evidence “The premier construction experience.” Source: RevenueBase Database · checked Sep 4, 2026
21	Avertim	Indirect evidence	Brussels, BelgiumHQ checked Sep 4, 2026	201-500	272 contacts →
	Indirect evidence “Most organizations are facing major transformation challenges due to market, technological, social or political factors.” Source: RevenueBase Database · checked Sep 4, 2026
22	Level Group BR	Indirect evidence	Barueri, BrazilHQ checked Sep 4, 2026	201-500	270 contacts →
	Indirect evidence “Na Level Group, somos especialistas em fornecer soluções inovadoras de Supply Chain, gestão de fornecedores e tecnologia, focadas na otimização de processos e redução de custos.” Source: RevenueBase Database · checked Sep 4, 2026
23	Brandt Business Services	Indirect evidence	Kuala Lumpur, MalaysiaHQ checked Sep 4, 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 4, 2026
24	Monarch Innovation Private Limited	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 4, 2026	201-500	259 contacts →
	Indirect evidence “Monarch Innovation is a Design & Engineering company based out of India which serves the clientele across the globe through its strategic partnerships, alliances & collaborations.” Source: RevenueBase Database · checked Sep 4, 2026
25	Atos Information Technology Gmbh	Partial evidence	Dusseldorf, GermanyHQ checked Sep 4, 2026	10001+	254 contacts →
	Partial evidence “Atos Information Technology GmbH is a management consulting company” Source: RevenueBase Database · checked Sep 4, 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 consulting firms. 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 consulting firms.
Partial evidence: Its own public description names part of lean consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name lean consulting firms. 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 18,055 lean consulting firms worldwide

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Lean consulting firms worldwide at a glance

As of Sep 4, 2026

24.3%Verified-email coverage

13.3%Mobile-number coverage

6.1Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · Sao Paulo

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

14,174

11-50

2,953

51-200

533

201-500

124

501-1,000

1,001-5,000

5,001-10,000

10001+

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 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.
Coverage: 42 countries, largest first: the United States, Brazil, the United Kingdom, France, Germany, Canada, India, the Netherlands, Australia, Mexico and 32 more. Country and city lists for lean consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “lean 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 lean 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 lean consulting firms, 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, 26,548 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 between September 4, 2026 and September 14, 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 consulting firms by location

106 lists · largest first

Every Lean consulting firms 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 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 lean consulting firms are there worldwide?

RevenueBase identified 18,055 lean consulting firms 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 Linkoping, tops this list with the largest team on record.

Which country has the most lean consulting firms?

The United States leads with 4,889 companies, followed by Brazil (1,989) and the United Kingdom (1,286). Every lean consulting firms list by country and city is linked on this page.

Which city has the most lean consulting firms?

Sao Paulo leads with 410 headquartered companies, followed by London (313) and Paris (255).

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 26,548 verified decision-maker contacts tracked across these 18,055 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 4, 2026 and September 14, 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.