Company lists · Data refreshed November 2026

Top 25 Six sigma training providers based in the United States

RevenueBase identified 196 company matches for six sigma training providers associated with the United States as of November 2026 and tracks 1,036 professional contacts across them, including 192 with verified work emails. Atlanta is the largest hub.

This list covers company matches for six sigma training providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
196Companies
1,036Contacts tracked
192Verified emails
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The 25 largest six sigma training providers based in the United States

Ranked by team size
Top 25 of 196 company matches for six sigma training providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChula Vista, CA, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Since 1998, LSSI has trained over Lean Six Sigma professionals and helped more than 500 manufacturing, logistics, and service organizations from dozens of industries successfully…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPowell, OH, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Get the latest insights on Lean Six Sigma, process modeling, and continuous improvement delivered straight to your inbox.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchScottsdale, AZ, United StatesHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Experts in Lean Six Sigma Training, Consulting, and Deployments targeting Breakthrough in Business Transformation, Optimization and Business Terraforming The Dr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDowningtown, PA, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Nov 6, 20261-1029 contacts →

Exact match

“HKPO is a Small, Woman-Owned business founded in 2006 with a mission to train and support our clients on how to continuously improve and Change for the Better using Lean Six Sigma…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchKeller, TX, United StatesHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“The world leader in online Lean and Six Sigma training.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Six Sigma.us offers online, onsite and open enrollment six sigma training and six sigma certification in Green Belt, Black Belt, Master Black Belt, Champion and Lean Agent…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAustin, TX, United StatesHQ recorded Nov 6, 20261-1023 contacts →

Exact match

“We are the leading non-profit organization promoting the high standards and values that Lean Six Sigma operates by.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Where people and intelligent transformation meet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWaianae, HI, United StatesHQ recorded Nov 6, 20261-1018 contacts →

Exact match

“GLSS empowers everyone with Ethical Efficiency™.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“At Firefly Consulting, we provide custom solutions, leveraging unique methodologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAmherst, NY, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Meliora Partners provides continuous improvement expertise to small, mid-sized, and large companies with service offerings including improvement project coaching & support…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMurrieta, CA, United StatesHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“We provide customized staffing solutions that strengthen workforce capabilities, improve performance, and support organizational growth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 20261-1012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Since 1986, QC Training Services, Inc, has provided public and on-site training seminars, workshops and quality consultation to customers across North America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDenver, CO, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“We are a global leader in providing Lean Six Sigma, Lean, Change Management, and Project Leadership training, coaching, and consulting solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCoppell, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Get results in half the time.” This is the vision of RCI Consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLongboat Key, FL, United StatesHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“GELRAD is a global consulting company specialising in problem solving and business transformation, using Lean Six Sigma, Change Acceleration, and DFSS.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDayton, OH, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Strategy3 is a Manufacturing Engineering company that specializes in implementing Lean Manufacturing techniques, Six Sigma, Plant Turnarounds, Cost Savings, Labor Productivity…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBingham Farms, MI, United StatesHQ recorded Nov 6, 202651-2007 contacts →

Exact match

“Quality Consulting ASI Consulting Group: Global leader and pioneer in Quality Improvement for more than 30 years, specializing in Six Sigma, Design for Six Sigma (DFSS), Quality…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPhoenix, MT, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“The International Association for Six Sigma Certification (IASSC) is a member organization dedicated to growing and enhancing the standards within the Lean Six Sigma Community.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchTucson, AZ, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Since 1982: the art and science to improve your bottom line.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPalmer, AK, United StatesHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Lean Alaska was founded in 2019, as a response to the overwhelming demand and need for Lean Six Sigma (LSS) training in Alaska.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202651-2005 contacts →

Exact match

“SSDSI is a trusted IASSC Accredited Organization committed to empowering professionals and organizations with world-class Lean Six Sigma certification training.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCamas, WA, United StatesHQ recorded Nov 6, 202611-505 contacts →

Exact match

“ETI Group is a leading management consulting firm specializing in Process Management and Improvement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 196 six sigma training providers based in the United States

See the full list, filter by size, metro and specialty, and access 192 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Six sigma training providers based in the United States at a glance

As of Nov 6, 2026
18.5%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · Atlanta
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
143
11-50
42
51-200
7
201-500
3
1,001-5,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 196 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “six sigma training providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 192 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “six sigma training providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many six sigma training providers are there based in the United States?

RevenueBase identified 196 company matches for six sigma training providers associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

LSSI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most six sigma training providers?

Atlanta leads with 8 company records, followed by Scottsdale (6) and Austin (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 192 professional contacts with verified work emails tracked across these 196 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 196 six sigma training providers based in the United States. Start with a free account, no credit card.

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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.