Company lists · Data refreshed September 2026

Top 25 Six sigma training and consulting firms worldwide

RevenueBase identified 2,109 six sigma training and consulting firms worldwide as of September 2026 and tracks 8,843 professional contacts across them, including 1,509 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers six sigma training and 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 29, 2026. Country and city lists for six sigma training and 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 29, 2026 86% judged on-target in blind review
2,109Companies
8,843Contacts tracked
1,509Verified emails
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The 25 largest six sigma training and consulting firms worldwide

Ranked by team size
Top 25 of 2,109 six sigma training and consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to six sigma training and 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAnn Arbor, MI, United StatesHQ checked Sep 29, 2026501-1,000216 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
2Strong evidenceCoronado, CA, United StatesHQ checked Sep 29, 202651-200178 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 29, 2026
3Indirect evidenceBuenos Aires, ArgentinaHQ checked Sep 29, 202651-200105 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 29, 2026
4Indirect evidenceSpainHQ checked Sep 29, 202651-20078 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 29, 2026
5Partial evidenceAhmedabad, IndiaHQ checked Sep 29, 202611-5072 contacts →

Partial evidence

“4C Consulting provides an extensive range of strategic consulting and advisory services that leads to sustainable business excellence.”

Source: RevenueBase Database · checked Sep 29, 2026
6Strong evidenceZapopan, MexicoHQ checked Sep 29, 202651-20070 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 29, 2026
7Strong evidenceRotterdam, NetherlandsHQ checked Sep 29, 202651-20067 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 29, 2026
8Strong evidenceNoida, IndiaHQ checked Sep 29, 202651-20055 contacts →

Strong evidence

“Advance Innovation Group encompasses expertise of over several years in Business Consulting and Training.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceNew Taipei City, TaiwanHQ checked Sep 29, 202651-20054 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 29, 2026
10Partial evidenceMaywood, IL, United StatesHQ checked Sep 29, 2026201-50053 contacts →

Partial 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 29, 2026
11Indirect evidenceEnschede, NetherlandsHQ checked Sep 29, 202611-5052 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 29, 2026
12Strong evidenceBengaluru, IndiaHQ checked Sep 29, 202611-5052 contacts →

Strong 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 29, 2026
13Indirect evidenceToulouse, FranceHQ checked Sep 29, 202651-20045 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 29, 2026
14Strong evidenceNoida, IndiaHQ checked Sep 29, 202651-20045 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 29, 2026
15Strong evidencePowell, OH, United StatesHQ checked Sep 29, 202611-5044 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 29, 2026
16Indirect evidenceMontbonnot-saint-martin, FranceHQ checked Sep 29, 202611-5044 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 29, 2026
17Indirect evidenceBussum, NetherlandsHQ checked Sep 29, 202651-20043 contacts →

Indirect evidence

“Everyone has the power to improve.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceQuébec, QC, CanadaHQ checked Sep 29, 202611-5042 contacts →

Indirect evidence

“ACPE est un cabinet expert en excellence opérationnelle.”

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidenceJakarta Pusat, IndonesiaHQ checked Sep 29, 202611-5042 contacts →

Strong evidence

“For more than 30 years, the NBOGroup offers professional consulting and training services targeted at developing "the power within" organizations - the people.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceDowningtown, PA, United StatesHQ checked Sep 29, 202611-5042 contacts →

Indirect evidence

“The Management and Strategy Institute serves individuals and businesses who wish to advance their knowledge in business related skills.”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceScottsdale, AZ, United StatesHQ checked Sep 29, 202651-20039 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 29, 2026
22Partial evidenceCairo, EgyptHQ checked Sep 29, 202611-5038 contacts →

Partial evidence

“Symbios Consulting is a leader in Operational Excellence field.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceValsad, IndiaHQ checked Sep 29, 202651-20038 contacts →

Indirect evidence

“We help manufacturing companies achieve operational excellence, compliance, and sustainable profitability.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceAraraquara, BrazilHQ checked Sep 29, 2026n/a38 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 29, 2026
25Strong evidenceVadodara, IndiaHQ checked Sep 29, 202611-5037 contacts →

Strong 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 29, 2026

Showing 25 of 2,109 six sigma training and consulting firms worldwide

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Six sigma training and consulting firms worldwide at a glance

As of Sep 29, 2026
17.1%Verified-email coverage
4.2Average contacts per company
1-10Median size (employees)
1.1%Largest-city concentration · Sao Paulo
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,612
11-50
417
51-200
61
201-500
10
501-1,000
4
1,001-5,000
2
5,001-10,000
1

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 training and 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
Every country. Country and city lists for six sigma training and consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “six sigma training and 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 six sigma training and 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 six sigma training and 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, 1,509 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 29, 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 training and consulting firms by location

11 lists · largest first

Every Six sigma training and consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 training and 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 six sigma training and consulting firms are there worldwide?

RevenueBase identified 2,109 six sigma training and 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?

Omnex INC, headquartered in Ann Arbor, tops this list with the largest team on record.

Which country has the most six sigma training and consulting firms?

The United States leads with 434 companies, followed by India (164) and Brazil (152). Every six sigma training and consulting firms list by country and city is linked on this page.

Which city has the most six sigma training and consulting firms?

Sao Paulo leads with 23 headquartered companies, followed by London (19) and Chennai (17).

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 1,509 verified decision-maker contacts tracked across these 2,109 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 29, 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.