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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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Wonderful Session with Effective Approach
“I wanted to thank you for the wonderful session that you have conducted. Your approach was very effective, and your expertise in the subject matter was evident. Thank you.”
Benchmark Six Sigma (SP)
Lean Six Sigma Green Belt -
Good Course; Content Met Expectations
“The course was good, and the content and delivery met my expectations. The material was well-organized, and the instruction was clear and effective, providing a thorough understanding of the subject matter.”
Lean Six Sigma Green Belt
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Well-Prepared Modules; Clarity and Organization Excellent
“Very well-prepared modules and Sir is very clear on topics. The clarity and organization of the content were excellent.”
Lean Six Sigma Green Belt
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Transformative Learning Experience
This program was an exceptional journey filled with invaluable insights. Its well-structured design, coupled with hands-on practical exercises in each module, provided profound learning moments. The guidance of an outstanding coach and mentor made the experience truly remarkable!
Business Excellence Master Black Belt
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Virendra Kuril
17/03/2024
Sr manager, Sun Pharma
The trainer’s Great Knowledge and Teaching Ability
“The trainer has great knowledge and teaching ability for the Black Belt program. He has really great standards in delivering this training.”
Lean Six Sigma Black Belt
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Good training; enhanced knowledge with comprehensive sessions
“Overall, the training was good; it really helped me to enhance my knowledge. The sessions were comprehensive and informative.”
Lean Six Sigma Green Belt
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Great online training; tools learned, doubts clarified
“It was a great experience to learn about different tools and methods. Though the training was online, all the doubts were clarified, and the session was interesting. Very good experience.”
Lean Six Sigma Green Belt
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Well-Structured Course Alternated Theory and Practice
“The course had a well-structured content, with training classes that alternated between theory and practice. The trainer showed passion for the topics and put in great effort to effectively teach the material.”
Benchmark Six Sigma (SP)
Lean Six Sigma Black Belt

