GLSS (GoLeanSixSigma.com) Reviews 151

TrustScore 4.5 out of 5

4.3

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Rated 5 out of 5 stars

Started with the yellow belt training in 2023. Finished off with both Black Belt courses and the Champion Course this year. I've genuinely enjoyed the lessons and the knowledge I've gained thes... See more

Rated 5 out of 5 stars

As a student, this particular yellow and green belt courses allowed me to get more knowledge related to LSS. The videos quality and style is very impressive and the duration of the course is also just... See more

Rated 1 out of 5 stars

It's very disappointing that the certification is valid for only 2 years. Then you have to pay $499-$599 to recertify. There are no discounts or monthly options, and there is little to no value in con... See more

Rated 5 out of 5 stars

Good experience I'll admit that I wasn't super excited about having to do Lean Six Sigma training, but I found this course to be easy to follow. It seemed to go by pretty fast compared to other tra... See more

Company details

  1. Class
  2. Business Management Consultant
  3. Business to Business Service

About GLSS (GoLeanSixSigma.com)

Written by the company

Start Free Training

Lean Six Sigma Training That Delivers Results

The most practical, easy to understand and highest rated Lean Six Sigma Training & Certification courses available. Register today to start improving any process.

Founder & CEO: Karlo Tanjuakio

Contact info

4.3

Excellent

TrustScore 4.5 out of 5

151 reviews

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No history of asking for reviews

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Hasn’t replied to negative reviews

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Rated 5 out of 5 stars

A great place to start your Lean Six Sigma Journey

Started with the yellow belt training in 2023.
Finished off with both Black Belt courses and the Champion Course this year.

I've genuinely enjoyed the lessons and the knowledge I've gained these past 2 years has definitely helped my evolving career.

I should also mention that there's quick support if you're having any issues. Just send an email.

11 November 2025
Unprompted review
Rated 5 out of 5 stars

As a student

As a student, this particular yellow and green belt courses allowed me to get more knowledge related to LSS. The videos quality and style is very impressive and the duration of the course is also justified. It's a good opportunity for any student out there.

18 December 2025
Unprompted review
Rated 1 out of 5 stars

It's very disappointing

It's very disappointing that the certification is valid for only 2 years. Then you have to pay $499-$599 to recertify. There are no discounts or monthly options, and there is little to no value in continued access to GLSS. So basically $499 allows you to get an updated certificate.

2 December 2025
Unprompted review
Rated 4 out of 5 stars

Good course, could be more focused.

The course was good and the presentations thorough. I really enjoyed the web based learning. However I think some of the modules should be more focused, especially with regards to the amount of tools that are presented.

Overall a good course that gives the pupil an overview and insight into improvement projects.

10 January 2022
Unprompted review
Rated 4 out of 5 stars

I thought the online class was very good.

I thought the online class was very good for both Yellow and Green belts. Only one area I thought the material was different was from the exam was in the Green Belt module.

Overall I enjoyed it and looking forward to taking the Black belt class.

7 January 2022
Unprompted review
Rated 5 out of 5 stars

Enriching Learning Experience

Excellent course. The material was delivered in a variety of different methods, adding to the richness of the course. The self-paced course delivery provided time to think through the concepts, take detailed notes, and truly absorb the material. It was a very enriching learning experience. Highly recommend it.

7 January 2022
Unprompted review
Rated 5 out of 5 stars

Well-Designed Course

ASQ material was delivered in a way that was very easy to understand and follow. Dividing the main exam into blocks was a great way to take the exam while everything I learned was fresh on my mind! Six sigma coach was easy to contact in the event I had any issues.

17 December 2021
Unprompted review
Rated 4 out of 5 stars

great resource - little IT improvement

This is a great resource including in depth information and examples and interactive parts/tests.

One little IT enhancement- if you finished a class and went back into that finished class the system forgot that you already did the rest of it.

1 December 2021
Unprompted review
Rated 1 out of 5 stars

Never visited them, only received spams from them.

I have no idea what this website is about but they don't seem to verify that the email address used to register an account, or maybe for their newsletter, actually belong to the person doing the registration. Now I am getting tonnes of email from this website because someone used my email address for their content. There is no link to unsubscribe in those emails.

25 November 2021
Unprompted review
GLSS (GoLeanSixSigma.com) logo

Reply from GLSS (GoLeanSixSigma.com)

Thank you so much for your feedback! We sincerely apologize for the number of unwanted emails you've been receiving but would be happy to resolve this for you. Please send an email to our contact team at contact@goleansixsigma.com and ask to be removed from our email list and we'll be sure to get that updated. I'd be happy to update now but unfortunately don't have any of your contact information.

Your feedback is very appreciated and we hope this error doesn't detract you from using our services if ever needed. Our goal would never be to intentionally send emails to anyone that isn't interested, so we hope to get this corrected for you ASAP.

We thank you again for your feedback and look forward to hearing from you!

Rated 4 out of 5 stars

The material is excellent

The material is excellent. I still have continued problems to access the training material. In the Analyze Phase, Process Analysis Sub-Phase, there is still the content of a slide which has not been made available to me, despite the repeated requests made to your support area: the ACCESS keeps appearing as DENIED. Why? On the other hand, please provide a certification of approval of the YB course, please.

27 July 2021
Unprompted review

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