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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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Good Sessions and Content for Understanding
“Good sessions and content for easy understanding. Amazing sessions. The instructor is professional. He explained in a detailed manner, and I loved the examples which helped me understand the concepts better.”
Lean Six Sigma Black Belt
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Detailed Learning in Short Time for Professionals
“This organization has the course structure to learn the subject in detail but in less span of time. Useful for working professionals.”
Benchmark Six Sigma (SP)
Lean Six Sigma Black Belt -
Trainer Helpful in Explaining Doubts in Detail
“Trainer is very helpful in explaining all doubts in detail. Overall a good exposure to LSS concepts.”
Lean Six Sigma Black Belt
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Energetic Trainer Made Sessions Very Interesting
“The trainer is an excellent energetic trainer who makes his session very interesting with examples. He is excellent in delivery of knowledge in simple ways. “
Lean Six Sigma Green Belt
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Benchmark Six Sigma Sets Industry Standard
“Benchmark Six Sigma sets the standard for excellence in the industry.”
Lean Six Sigma Black Belt
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Extensive Training with Helpful Materials
“The training was extensive – once I got to the reading material, I could easily follow and remember the concepts. The detailed materials are very helpful.”
Lean Six Sigma Black Belt
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Great Course for Day-to-Day Improvement; Useful for Working Professionals
“Great course for people working on day-to-day improvement. The course is structured to be useful for working professionals.”
Lean Six Sigma Black Belt
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Stellar Learning Experience with Benchmark
Learning the Black Belt course with Benchmark has been exceptional. The seamless coordination between the marketing team and the coordinator ensured a smooth process, even when I joined on the last day.
The trainer’s interactive sessions were engaging, starting with quizzes to gauge understanding. Encouraging participation via chat kept the batch lively and focused. His use of real-life examples made the training practical and insightful.
The introductory and closing sessions added clarity and structure, enhancing the overall experience. My sincere thanks to the Benchmark team for delivering such a well-rounded and impactful course.
Lean Six Sigma Black Belt

