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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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Ankit Jain
Mahindra Susten
Excellent Program with Knowledgeable Trainer
“It was an excellent program and the trainer was extremely knowledgeable.”
Lean Six Sigma Green Belt
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MOHIT RAJ
Sr. QUALITY ANALYST, Amazon
Training Flow Enhanced Learning Significantly
“The flow of the training was seamless, enhancing the learning process significantly.”
Lean Six Sigma Green Belt
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Sandhya G
Lead, Amazon
Course: Practical, purpose-oriented, easy to understand.
“The course was not only practical and purpose-oriented, but also made understanding the concepts very easy.”
Lean Six Sigma Green Belt
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Siddharth Krishnan
Transportation Specialist, Amazon
Clear Examples Simplified Complex Topics
“The faculty’s examples were instrumental in illustrating complex topics in an understandable way.”
Lean Six Sigma Green Belt
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SUMEET SHETTIGAR
SENIOR MENTOR, Amazon
Excellent Course Amenities and Practical Learning.
“The amenities, training materials, and the depth of analysis provided during the course were outstanding, along with practical exercises that solidified my learning.”
Lean Six Sigma Green Belt
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Anand Kumar Thorat
Amity University
Positive Feedback on BLACK BELT Course
“Thank you and looking forward to you meet you in BLACK BELT. It was really indeed a great experience for me to use statistics to hit the ground. I really enjoyed your teaching methods and techniques especially Santa Singh, never imagined he could make quantitative techniques so easy to learn. I had joined this course with an expectation that would help me in my internship program and now I am quite confident of using these techniques in my projects.”
Lean Six Sigma Green Belt
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Nidhi Mohandas
Student, Amrita School of Business
Effective Methods Focus on Problem-Solving Approach
“The instructional methods were outstanding, simplifying complex concepts to a level that was easily understandable, reflecting on the importance of how problems are solved rather than just the solution.”
Lean Six Sigma Green Belt
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SAURABH SHRIVASTAVA
SENIOR MANAGER, MILKBASKET
Practical Techniques Useful for Real-Life Applications
“The various techniques covered were practical and useful for real-life applications.”
Lean Six Sigma Green Belt

