Company lists · Data refreshed September 2026
Top 25 Six sigma consultants worldwide
RevenueBase identified 2,065 six sigma consultants worldwide as of September 2026 and tracks 8,784 professional contacts across them, including 1,433 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers six sigma consultants 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 22, 2026. Country and city lists for six sigma consultants 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.
The 25 largest six sigma consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 304 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 216 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 178 contacts → | ||||
Strong 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 105 contacts → | ||||
Indirect evidence “Somos una empresa certificada ISO 9001, constituida por un equipo de profesionales de distintas disciplinas como ingeniería, estadística, recursos humanos, administración de…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 78 contacts → | ||||
Indirect evidence “En LeanSis Productividad tenemos como misión ayudar a nuestros clientes a mejorar su productividad, calidad y plazos de entrega mediante la optimización de sus procesos y la…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 72 contacts → | ||||
Indirect evidence “4C Consulting provides an extensive range of strategic consulting and advisory services that leads to sustainable business excellence.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 70 contacts → | ||||
Strong evidence “Internacional Lean Six Sigma habilita a personas y empresas a reducir sus costos operacionales mientras se fortalece la cultura organizacional.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 67 contacts → | ||||
Strong evidence “The Lean Six Sigma Company was founded in 2002 and since then, we have expanded from our point of origin in Rotterdam to dozens of locations worldwide.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 55 contacts → | ||||
Indirect evidence “Advance Innovation Group encompasses expertise of over several years in Business Consulting and Training.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 54 contacts → | ||||
Partial evidence “MU Sigma Group To provide Best-In-Class practices for our customers as a change agent through breakthrough performance improvement with sustainable financial results.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 53 contacts → | ||||
Indirect evidence “PCG Consulting Group offers preeminent results for B2B clients in Technology, Healthcare, Call Center, Collections, Location Services and Skip tracing sectors.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 52 contacts → | ||||
Indirect evidence “Symbol inspireert en verbetert processen Improvement is everywhere Zelfs in de meest succesvolle organisaties liggen kansen voor verbetering.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 contacts → | ||||
Indirect evidence “Anexas is a global training and consulting organization specializing in process excellence, quality management, project management, healthcare quality, data analytics, AI and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 45 contacts → | ||||
Indirect evidence “Créé en 2005 par Aymeric de Valroger, le cabinet Axsens bte vous accompagne vers l'excellence opérationnelle au travers de ses activités de conseil et de formation, quelle que…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 45 contacts → | ||||
Strong evidence “Transforming Business Excellence with Lean Six Sigma & AI-Powered Innovation Benchmark X 360 (formerly Benchmark Six Sigma) is a global leader in Lean Six Sigma training, business…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 44 contacts → | ||||
Strong evidence “Get the latest insights on Lean Six Sigma, process modeling, and continuous improvement delivered straight to your inbox.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 44 contacts → | ||||
Indirect evidence “XL Groupe est un cabinet de Conseil et Formation spécialisé dans l’amélioration des performances depuis 25 ans.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 43 contacts → | ||||
Indirect evidence “Everyone has the power to improve.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 42 contacts → | ||||
Indirect evidence “ACPE est un cabinet expert en excellence opérationnelle.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 39 contacts → | ||||
Strong evidence “Experts in Lean Six Sigma Training, Consulting, and Deployments targeting Breakthrough in Business Transformation, Optimization and Business Terraforming The Dr.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 contacts → | ||||
Indirect evidence “Symbios Consulting is a leader in Operational Excellence field.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 38 contacts → | ||||
Indirect evidence “Make Gestão e Treinamentos Ltda Atuação em consultoria e assessoria em atividades de desenvolvimento e manutenção do sistema de gestão da qualidade e condução de projetos de…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 37 contacts → | ||||
Indirect evidence “We are today, one of the reputed training and consulting organizations engaged in: •Preparing organizations for certification of various international standards (such as ISO)…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 36 contacts → | ||||
Indirect evidence “In a rapidly changing business environment, new challenges are facing businesses whether Startups, SMEs, or Large Organizations.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 35 contacts → | ||||
Strong evidence “Specialized in projects and team training in Lean Manufacturing, Six Sigma, Quality Management, Lean Logistics.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: six sigma consultants. 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 six sigma consultants.
- Partial evidence
- Its own public description names part of six sigma consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name six sigma consultants. 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 2,065 six sigma consultants worldwide
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Six sigma consultants worldwide at a glance
As of Sep 22, 2026Companies by employee count
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 six sigma consultants, 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 six sigma consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “six sigma consultants”. 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 six sigma consultants), 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 six sigma consultants, 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, 1,433 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 22, 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.
Six sigma consultants by location
10 lists · largest firstEvery Six sigma consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Six sigma consultants based in the United States431
- Six sigma consultants based in Brazil151
- Six sigma consultants based in India146
- Six sigma consultants based in the United Kingdom106
- Six sigma consultants based in the Netherlands86
- Six sigma consultants based in Canada82
- Six sigma consultants based in Mexico66
- Six sigma consultants based in Germany58
- Six sigma consultants based in France39
- Six sigma consultants based in Australia34
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 six sigma consultants, 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 six sigma consultants are there worldwide?
RevenueBase identified 2,065 six sigma consultants 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?
Valdo INC, headquartered in Dki Jakarta, tops this list with the largest team on record.
Which country has the most six sigma consultants?
The United States leads with 431 companies, followed by Brazil (151) and India (146). Every six sigma consultants list by country and city is linked on this page.
Which city has the most six sigma consultants?
Sao Paulo leads with 22 headquartered companies, followed by Toronto (17) and London (16).
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 1,433 verified decision-maker contacts tracked across these 2,065 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 22, 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.