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Six Sigma is a series of tools and strategies that helps businesses improve and streamline their processes, and getting a Six Sigma certification can really help you stand out in a sea of job applications. Online Six Sigma certification courses are the most popular because they let you study from anywhere and review the materials at your own pace, but with so many options out there, it can be difficult to know where to begin.

There are several levels of Six Sigma certification and we wanted our recommendations to suit individuals at all levels. So we focused on the variety of courses each company offers, the comprehensiveness of their resources and what methods of support they provide to their students. We also looked at student reviews to get a sense of how well they felt the courses prepared them for the real test.

We liked Management and Strategy Institute’s programs the most because they were comprehensive, flexible and affordable. But everyone learns a little differently, so we also suggested three alternative picks. You can read about all of them below to decide which one is right for you.

A Full List of Every Online Six Sigma Certification Course Worth Considering

Our four top online Six Sigma certification courses are listed below, along with the other 10 courses we looked at. Click on the links to learn more about each course on the company’s website or keep reading for full reviews of our top picks.

The 4 Best Online Six Sigma Certification Courses

Management and Strategy Institute$0-$295
Aveta Business Institute$0-$1,795
Grey Campus$180-$1,000
Learn Sigma Corporation$19.95 - $1,690

The Other 10 Online Six Sigma Certification Courses We Considered

CourseLearn More
6Sigma.usVisit Site
Acuity InstituteVisit Site
ExpertRatingVisit Site
GoLeanSixSigma.comVisit Site
Lean Six Sigma InstituteVisit Site
Purdue UniversityVisit Site
Pyzdek InstituteVisit Site
San Diego State University World CampusVisit Site
SimpliLearnVisit Site

The Most Important Features: Accessibility, Content Coverage, Course Materials and Student Support

The four most important factors when choosing an online Six Sigma certification course are accessibility, content coverage, course materials and student support. They’re each discussed in detail below.


We aim to recommend courses that are useful to anyone, no matter where they live, which is why we focused on online Six Sigma certification courses. We preferred companies that offer self-paced as well as live online courses so that students whose schedules can’t accommodate live online courses would still be able to complete the program. All three of our top picks offer self-paced courses to anyone in the world.

Content Coverage

When evaluating each Six Sigma certification course provider’s comprehensiveness, we focused on the comprehensiveness of each course as well as the variety of courses offered. Most Six Sigma certification course providers offer yellow, green and black belt certifications and the best courses, including the Aveta Business Institute and the Management Strategy Institute, offer industry-specific certification courses as well.

Course Materials

A typical Six Sigma certification course includes a series of live online or prerecorded video lectures. It may also include a textbook. Once you’ve reviewed the course material, you can test your knowledge with practice questions and tests. Some course providers also include additional online resources, like study guides, so you can review the most important information from the course at a glance. 

Student Support

Live online Six Sigma certification courses may include access to instructor office hours where you can ask questions about any materials you don’t understand. You can also ask questions during the class itself. Students in self-paced courses usually don’t get as much assistance, but there may still be email or phone support available if you run into problems.

Choosing the Right Type of Online Six Sigma Certification Course for You

You have two options when choosing an online Six Sigma certification course. Each has their own strengths and weaknesses. They are:

  • Self-Paced: You purchase the course materials and then review them at your own pace. 
  • Live Online: You log into an online classroom on a regular schedule and are taught by a remote instructor.



  • Most affordable courses
  • Works with any schedule
  • You choose how much time to spend on each topic


  • Lessons aren’t personalized
  • Student support is limited
  • Must be disciplined to stay on track

Who It’s Best For

Self-paced online Six Sigma courses are best for independent learners and those whose schedule does not permit them to attend a live online course.

Live Online


  • Learn from anywhere
  • More interaction than self-paced courses
  • Opportunities for personalized assistance


  • Technical issues can arise
  • You can’t control the schedule

Who It’s Best For

Live online Six Sigma certification courses are best for those who prefer learning in a more traditional environment and those who like the idea of having an instructor there to answer questions when needed.

Full Reviews of the Best Online Six Sigma Certification Courses

Management and Strategy Institute Review

Best for comprehensive and affordable courses

The Management and Strategy Institute is one of the best-known Six Sigma certification course providers because it offers a wide variety of programs tailoring to different levels and budgets, realistic simulations and a money-back guarantee. It’s not the best choice for those who want an instructor to guide them through the course material, but self-driven students usually have nothing but positive things to say about the company’s courses.

What to Expect

The Management and Strategy Institute offers a variety of self-paced Six Sigma courses, including options rarely found with its competitors, like Master Black Belt certification and TPM Concept and 5S Concept certifications. It’s also one of the few companies to offer a free White Belt program to those who are new to Six Sigma. Each course is self-paced and you have access to the materials for one year from the date that you purchase them.

Your course includes all of the training materials you’ll need in order to pass the Six Sigma exam for your level, though the Management and Strategy Institute also maintains a list of additional study materials for those who want to dig deeper into a particular topic. Part of what helps the company’s courses stand out are the project simulations, which give you a chance to test your skills against real-world problems. You can also purchase some simulations separately if you’d like more practice with these.

The Management and Strategy Institute doesn’t offer instructor support to those in its self-paced courses, but this doesn’t appear to be too much of an issue because the courses have received largely positive reviews from former students. They’re also backed by a satisfaction guarantee, so if you don’t like the course, you can request a refund within 30 days and the Management and Strategy Institute will give you your money back, no questions asked. 

Management and Strategy Institute Details

Lean Six Sigma White Belt CertifiedFree
TPM Concept Certified$49.95
5S Concept Certified$49.95
Six Sigma Champion Certified$99.95
Certified Kaizen Facilitator$99.95
Six Sigma Yellow Belt Certified$99.95
Design for Six Sigma Certified$199.95
Six Sigma Lean Professional$199.95
Six Sigma Green Belt Certified$199.95
Six Sigma Lean Green Belt Certified$199.95
Six Sigma Black Belt Professional$299.95
Six Sigma Lean Black Belt Professional$299.95
Lean Six Sigma Master Black Belt$299.95

Aveta Business Institute Review

Best for industry-specific certifications

You can’t beat the Aveta Business Institute if you’re interested in Six Sigma certifications that are specific to your industry. It’s one of the only Six Sigma course providers to offer 23 specialty certifications at all levels. Its courses are a little pricier than our top pick, but they are pretty comprehensive and you can test them out by taking the free White Belt certification course to see if it’s right for you before you decide if you want to buy.

What to Expect

Like our top pick, the Aveta Business Institute offers a free White Belt certification course to give students a taster of what they’re in for. Those who like their programs can move onto yellow, green and black belt certification courses as they gain more experience. The company offers the traditional certification course as well as the popular Lean Six Sigma courses. But what really helps it stand out is its 23 industry-specific options focused on everything from healthcare and medicine to information technology to engineering. These specialty programs are available at all four levels — white, yellow, green and black.

Courses are self-paced and center primarily around textbook readings. There are also supplementary videos, PDFs, PowerPoint presentations and more to help drive home the key concepts. Each section of the course is followed by an open-book, online exam to test your understanding of the key topics. You must pass all exams in order to complete the course and earn your certification. You may retake the tests as many times as necessary.

Students have given the Aveta Business Institute’s Six Sigma courses mostly positive reviews. There isn’t an option for instructor support, but this is not that unusual among self-paced programs. You have access to your study materials for one year from the date you purchase them, but if you need access for longer, you can contact the Aveta Business Institute and they will extend your access free of charge.

Aveta Business Institute Details

Six Sigma White Belt Training & CertificationFree
Lean Six Sigma White Belt Training & CertificationFree
Six Sigma Yellow Belt Training & Certification$195
Lean Six Sigma Yellow Belt Training & Certification$195
Six Sigma Green Belt Training & Certification$395
Lean Six Sigma Green Belt Training & Certification$395
Six Sigma Black Belt Training & Certification$995
Lean Six Sigma Black Belt Training & Certification$995
Six Sigma Master Black Belt Training & Certification$1,795

Grey Campus Review

Best for student support

Grey Campus is your best option if you prefer live online courses and value having access to an instructor in case you run into questions. Its courses are reasonably priced and include over 150 hours of study time and simulated exams so that you can test your knowledge and see how you’re improving. But it doesn’t have the specialty course options that our other top picks do, so you may prefer one of them if you’re looking for industry-specific programs.

What to Expect

The Grey Campus offers yellow, green and black Six Sigma certification courses as well as a rare green and black combo package. You can choose from a self-paced option, like what our other two top picks offer, or a live online option if you learn better from an instructor. There’s also a classroom course option available if you’d like to offer training to a large group. You can contact Grey Campus directly for more information on in-person programs.

Self-paced courses give you one year’s access to the study materials online while the live online courses are taught in eight-hour sessions for four days. The live online courses are the best option for those who want the most comprehensive instruction because they involve more course hours. All students get access to the online resources, including simulated exams to help you familiarize yourself with the test format and the types of questions you’ll be asked.

Grey Campus is one of the online Six Sigma online course providers that gives all students instructor access via email for 30 days to help clarify any questions. There’s also an optional one-day live exam solving session where one of Grey Campus’s instructors will walk you through all the questions on a full-length Six Sigma exam. Most of Grey Campus’s students are more than satisfied with the assistance they receive during the course, but if you’re not, you can always take advantage of its money-back guarantee.

Grey Campus Details

Six Sigma Yellow Belt Training & Certification$180
Lean Six Sigma Yellow Belt Training & Certification$180
Six Sigma Green Belt Training & Certification$270
Lean Six Sigma Green Belt Training & Certification$270
Six Sigma Black Belt Training & Certification$360
Lean Six Sigma Black Belt Training & Certification$360
Lean Six Sigma Green & Black Belt Combo Training & Certification$590
Six Sigma Green & Black Belt Combo Training & Certification$900
Six Sigma Green Belt Live Online Training$800
Six Sigma Black Belt Live Online Training$1,000

Learn Sigma Corporation Review

Best for lifetime access

Lean Sigma Corporation‘s Six Sigma courses give you lifetime access to comprehensive study materials and useful statistical software, if you’re willing to pay a little extra. Though the courses are primarily intended for self-study, they include access to chat features so you can get assistance when you need it and every course is backed by a satisfaction guarantee.

What to Expect

Lean Sigma Corporation offers Six Sigma and Lean Six Sigma courses at the yellow, green and black belt levels. Its courses are a little more expensive than some of its competitors, but in addition to quality instruction, you get lifetime access to its programs, so you can review your materials months or even years later. All of its courses take place entirely online, including lessons, quizzes to test your learning, and the certification exams.

The green and black belt courses include the opportunity to purchase a perpetual license of SigmaXL or six months of access to the Minitab software. Not everyone will have use for these statistical softwares, but this could be a money-saver if you plan to use them often compared to paying for a separate Six Sigma course and the software. 

Most students are happy with the education they get from the Lean Sigma Corporation, but those who are not can request their money back thanks to the company’s 100% satisfaction guarantee. All of its courses include access to group and private chat services as well, which is great news for those who are struggling with certain concepts. You won’t find this with many other Lean Six Sigma courses, so it’s a great option if you want a self-study course that still offers support when you need it.

Lean Sigma Corporation Details

Six Sigma Quick Reference Guide$19.95
Six Sigma Yellow Belt Certification$390
Lean Six Sigma Yellow Belt Certification$490
Six Sigma Green Belt Certification$590
Lean Six Sigma Green Belt Certification - No Software$890
Six Sigma Black Belt Certification$990
Lean Six Sigma Green Belt Certification - SigmaXL$1,090
Lean Six Sigma Green Belt Certification - Minitab$1,290
Lean Six Sigma Black Belt Certification - No Software$1,290
Lean Six Sigma Black Belt Certification - SigmaXL$1,490
Lean Six Sigma Black Belt Certification - Minitab$1,690

Frequently Asked Questions About the Six Sigma Certification Exam

Here are the answers to some of the most common questions about Six Sigma certification exams.

What requirements do I need to meet to take the Six Sigma certification exam?

Requirements vary depending on the Six Sigma exam you’re taking. Yellow Belt certification exams don’t have any work or education requirements while Green Belt certification exams require at least three years of qualifying work experience. Those hoping to take the Black Belt certification exam must have two completed projects with signed affidavits or one completed project with a signed affidavit and three years of qualifying work experience.

You don’t technically have to take a Six Sigma course in order to take the exam, but it’s a good idea to do so because these courses will give you a thorough grounding in the materials and help you understand what to expect when the time comes for you to take the exam.

How do I apply for the Six Sigma certification exam?

When you’re ready to take a Six Sigma certification exam, you can apply online on the American Society for Quality (ASQ) website or down an exam application and mail or fax it to the company’s headquarters. You’ll need to submit your resume and you must pay the exam fee, which varies depending on which exam you’re taking and whether or not you’re an ASQ member.

Once you’ve done this, you can choose your testing date and the location nearest you to complete the exam. Then, all you have to do is show up and pass the test.

How is the Six Sigma certification exam structured?

The Six Sigma certification exams are multiple-choice tests. You may take them online or on paper, depending on your preferences. The online exams are currently only available in English while the paper tests are also available in Spanish and Mandarin. 

All examinations are open book, but you are responsible for bringing your own study materials. The number of questions depends on which level certification you’re going for and which type of test you take. The online exams usually include more questions than the paper tests because there are a few unscored questions that the test makers are considering for use in future exams. 

What if I fail the Six Sigma certification exam?

If you take a computer-based test, you’ll see your results on the screen immediately after the test is over and you’ll receive your official results in the mail in about a week. Paper tests may take about two weeks to grade. 

Those who didn’t pass can view their test results and study the areas where they did poorly. When you feel ready, you may retake the exam again. There is no limit on how often or how many times you may retake a Six Sigma certification exam, but you must pay the retake fee every time you do so.

Six Sigma certified professionals can also benefit from earning a PMP certification. Our team has also researched the best PMP certification courses if this is another certification you are looking to tackle.