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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
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Simple Teaching, Cooperative Team, Enjoyable Sessions
“The teaching way is very simple, and the team is very cooperative. The supportive learning environment made the sessions enjoyable.”
Business Excellence Master Black Belt
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Good Experience but Material Lacked Detail
“The experience was good. However, I felt some parts of the courses were not covered in detail in the course material. The additional depth would enhance understanding.”
Lean Six Sigma Green Belt
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Harishankar Ramamoorthy
24/12/2023
Associate Director, Tata Communications
Amazing Course on AHP with Deeper Insights into Decision-Making
“The course content and the way VK took us through the program are amazing as they gave deeper insights into how we can defend our decisions through AHP.”
AHP Practitioner
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Vignesh Muthu
24/12/2023
Operations Manager, Tata Communications
Eye-Opening AHP Session Provided Accurate Analytical Methods
“It is kind of an eye-opener session where we do a few analyses with assumptions, but the AHP session provides us the way to do it properly and as accurately as possible with all logic known.”
AHP Practitioner
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Excellent LSSBB Online Training Felt Like In-Person Class with Good Interaction
“I completed LSSBB training in Benchmark. Had an excellent experience with Benchmark Online classes. More like an in-person class. Good interaction and doubt clarification, proper planning on everyday sessions, and overall excellent course.”
Lean Six Sigma Black Belt
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Viswanath Satyanarayana Nalli
24/12/2023
Program Manager, Amazon
Enrolling in AHP module was the best decision
“Best decision to Enroll with Benchmark Six Sigma for learning the AHP module and Kudos to Mr. Vishwadeep Khatri for leading the session with a simple and clear agenda.”
AHP Practitioner
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Dhayalan S dhaya
24/12/2023
Process engineer, Asahi India Glass Limited
Engaging, Practical, and Invaluable Session Experience
“This had a perfect and interesting session. The engaging content and practical applications made it an invaluable experience.”
Benchmark Six Sigma (SP)
Lean Six Sigma Black Belt -
Five-Week Module Built Confidence in DMAIC Implementation
“This comprehensive five-week module has given me the confidence of being able to implement DMAIC. The structured approach is highly effective.”
Lean Six Sigma Black Belt