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Zellis
Building Capability at the Core of Payroll and HR Services
As a leading provider of payroll and HR solutions in the UK and Ireland, Zellis operates in a domain where accuracy, compliance, and service consistency are critical. Our engagement brought us into teams focused on strengthening internal problem-solving capabilities, improving process alignment, and supporting a culture of continuous improvement across operations. The commitment to excellence in delivery was matched by a clear intent to invest in scalable internal capability.
It was a privilege to work with professionals who brought diligence and purpose to every initiative. Their openness to structured thinking and collaborative improvement made this engagement both impactful and future-focused.
Testimonials for Benchmark Six Sigma
Feedback Filters
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Cynthia Gomez
08/10/2023
Manager Continuous Improvement, Allianz India
Effective Online Teamwork and Learning
“I attended online and we were able to work together as a team on a chosen case study and learned how to apply all the methods one by one in breakout rooms. This helps us to understand clearly the application. All templates are provided as well.”
Design Thinking Practitioner
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Excellent Trainer; Video Demonstrations Needed for Complex Topics
“The trainer was exceptionally good. However, the course material should include video-based demonstrations of certain exercises as well. Few of the topics are a bit complex, and self-study and the text material do not seem enough.”
Lean Six Sigma Green Belt
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Practical and Useful Content Made Easy by Effective Instructor
“Very practical and useful content. The instructor is really good at making complicated content very easy to follow. The right time allocation was given to the amount of content at the right speed.”
Lean Six Sigma Green Belt
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Excellent Course and Instructor with Everyday Illustrations
“Excellent course and instructor, explains on the concepts, takes deep issues to explain with every day examples. Illustrated with actual field problems.”
Lean Six Sigma Black Belt
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Good Course: Excellent Trainer and Materials
“Overall good. Especially the trainer’s demonstration and presentation. Really worthy course materials.”
Lean Six Sigma Green Belt
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Ajo Varghese
08/10/2023
Quality Lead, GDT (General Data Tech)
Hands-On Learning Enhanced Skills in Design Thinking Techniques
“One of the standout aspects of this course is the emphasis on hands-on learning. The practical exercises and tools provided were incredibly valuable. They allowed me to practice what I learned and apply design thinking techniques in my own projects, which greatly enhanced my skills.”
Design Thinking Practitioner
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Shubhankar Choudhry
08/10/2023
General Manager, GMR
Fantastic Learning Experience; Eager to Implement Concepts
“The training was awesome and the tools were elaborately explained. I would recommend others to join this module.”
Design Thinking Practitioner
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Excellent trainer ensured smooth, precise sessions.
“Very insightful sessions. The trainer was excellent and explained everything very precisely. It was very smooth from the beginning to the completion of the course.”
Lean Six Sigma Green Belt

