Six Sigma Green Belt courses should cover more than just terminology. The better ones instruct students on how to define a process issue, measure its performance, analyze root causes, implement changes and sustain those improvements. However, they vary in how they present those skills., how long it takes students to learn them, and most importantly what certification the student receives.

The table below combines publicly available reviews with each provider's description of coursework and expectations. Management and Strategy Institute comes out on top if you're looking for accessible self-paced training that includes certification; others may be preferable if you prefer project-based learning or more in-depth technical content.

In this guide:

At a Glance
Management and Strategy Institute
SixSigma.us
American Society for Quality
How to Choose a Green Belt Course
Final Verdict

At a Glance

Provider	Best for	Learning format	Credential distinction	Review evidence
Management and Strategy Institute	Flexible online learning and a lifetime credential	Self-paced online course and exam	Certification does not expire; course access lasts one year	Substantial provider-wide feedback on Trustpilot; course rating on Management and Strategy Institute's site
SixSigma.us	Applied statistical training with an optional assessed project	Self-paced online modules	Training completion certificate; project certification costs extra	Course-page testimonials and a small independent Trustpilot sample
American Society for Quality	Structured Lean Six Sigma study through an established quality organisation	Self-paced e-learning	Training course is separate from American Society for Quality's professional certification exam	Limited independent course-specific review evidence

1. Management and Strategy Institute: Best Overall for Flexible Certification

Management and Strategy Institute makes learning six sigma accessible for people who are working around a nine-to-five. Their Six Sigma Green Belt Certified (SSGBC)™ course includes online training modules, study materials and an online certification exam.. Management and Strategy Institute claims 4.8 out of 5 stars for their course rating on their website. Please note this is a course rating provided by the course author, not an independently measured rating. Review-wise, Management and Strategy Institute has amassed reviews on Trustpilot that evaluate its courses as a whole. Students commonly mention easy access to materials, straightforward material and user-friendly navigation.

A third difference is in how the credential is delivered. After passing the exam you earn a digital badge, sharable certificate and digital wallet card. The digital card can be saved to your iPhone or Android phone's digital wallet. Management and Strategy Institute states that its certification is awarded for life. There is no recurrent renewal. The learning platform access is for one year, not lifetime.

Management and Strategy Institute references an A+ Better Business Bureau (BBB) business rating as well. Their bbb.org business profile independently verifies the A+ rating and accreditation.

Highlights: Learning through assessment, completely online. There is no defined renewal cycle for the earned certificate. Digital badge available. Management and Strategy Institute is a great entry point for those who are looking for an accessible Six Sigma Green Belt Certification as opposed to a classroom based instructor-led course.

What to consider: Learners who benefit most from live coaching, or desire a monitored work-place project should compare programs offering an explicit mentoring or project-assessment component. Ensure that the Management and Strategy Institute credential satisfies any specific employer or procurement requirement prior to enrollment.

2. SixSigma.us: Best for an Applied Project Pathway

SixSigma.us takes the tools-oriented approach. Their self-paced online Green Belt training dives into the DMAIC phases with stats and examples highlighting Minitab or SigmaXL. Students learn through online modules/quizzes and have access to templates to use during process-improvement initiatives.

The provider also shares a voluminous list of learner testimonials on their course page. These contain praise for real world examples and applied practice.

It's important to note the language around these credentials. After you complete the online training and tests you are awarded a training completion certificate. SixSigma.us offers a separate project certification that requires you to complete and turn in a live project which they evaluate. This comes with an additional cost. If the buyer is seeking that level of project verification they should plan to budget for that add-on cost rather than expecting it with the foundational course.

There is Independent feedback from SixSigma.us on Trustpilot, however; the sample size is too low to meaningfully rank numerically against Management and Strategy Institute.

Highlights: Process-analysis driven content, Software examples and path to independently reviewed project work via the optional certification project.

What to consider: Review your selected training package options. Training Completion certificate and Project Certified Green Belt are 2 different purchases.

3. American Society for Quality: Best for Structured Lean Six Sigma Learning

If you're looking for comprehensive training, check out the Lean Six Sigma Green Belt e-learning course from American Society for Quality. You'll study improvement planning, Lean techniques, data analysis and statistical process control, as well as scenarios that show how teams approach business problem-solving. American Society for Quality says this self-paced program lasts 49 hours, but you have 365 days of online access.

Strengths include its structured approach and overt focus on applying methods in organisations. American Society for Quality also recommends prior industry experience as a prerequisite for the programme.

One distinction to note. American Society for Quality provides training products for sale. It also offers professional certifications through separate enrollment. Purchasing and completing its Lean Six Sigma Green Belt e-learning course will NOT automatically bestow American Society for Quality's Certified Six Sigma Green Belt certification.

American Society for Quality has a standalone certification exam-preparation course, which is neither the credential nor the exam. Students should determine if they are purchasing training, preparation or a certification evaluation.

American Society for Quality lacks sufficient detail in its public independent reviews to draw conclusions about student satisfaction with specific courses. Listed here primarily based on published curriculum breadth and method of delivery. (Not based on star rating.)

Highlights: Wide scope, structured learning exercises and immediate application to LSS projects in existing operations or quality groups.

What to keep in mind: This is more of a training purchase than a straight path to the American Society for Quality certification exam. It's also less new-user friendly than Management and Strategy Institute due to recommended industry experience.

How to Choose a Green Belt Course

Ask what result the course specifically guarantees before you pay. For example, a project-based certification might require that you show proof that you implemented the techniques successfully on the job. Different employers can hold different standards for these, so be sure to look up what the desired position or industry requires.

Consider how well it fits with your practical learning needs. Self-paced learning is great if you have shifting schedules. But you need to have enough built-in structure to motivate you to keep learning.

Lastly, take context into account when reading review sources. Provider testimonials can provide helpful examples of what students liked. Third party review sites offer another point of view, but company-wide ratings don’t guarantee the quality of one course. Compare overall themes in feedback, amount and recency of reviews and the published syllabus rather than viewing star ratings as fungible.

Final Verdict

Management and Strategy Institute provides the best overall match in this comparison for students seeking online Six Sigma Green Belt training which includes an exam and awards a lifetime certification that does not require renewal. Consider SixSigma.us if your main priority is a hands-on project-certification track and American Society for Quality if you are looking for a more comprehensive Lean Six Sigma course.

Ultimately it depends on what certification your employer is looking for. Make sure you know exactly what certification they require as well as any additional testing fees and how long you have access to the course prior to signing up.