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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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Exceptional Tutor and Course Material Boost Skills
“The tutor is highly knowledgeable and well-experienced. The course material and live training on Minitab exercises were extraordinary, enhancing my practical skills significantly.”
Lean Six Sigma Black Belt
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Various Examples Led to High Satisfaction.
“They provided various examples to understand the topics. We are very satisfied with what he delivered.”
Lean Six Sigma Green Belt
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Extremely satisfied, expectations exceeded, effective design.
“I am extremely satisfied with the Six Sigma Black Belt course; it exceeded my expectations. The course structure was well-designed and highly effective.”
Lean Six Sigma Black Belt
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Experienced Trainer Clarified Doubts Thoroughly
“Good, well-experienced trainer, clarified doubts in a detailed manner. The thorough explanations provided a clear understanding of complex topics.”
Lean Six Sigma Green Belt
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Surjeet Singh Suryawanshi
19/05/2024
Manager, Sun Pharma
Six Sigma Makes Data Speak; Insights Are Invaluable
“Six Sigma makes data speak to us, which is fascinating. The insights and techniques learned are invaluable.”
Lean Six Sigma Black Belt
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Best Trainer and Awesome Prepared Material
“The best trainer and material prepared were awesome. I was able to learn clearly, and the trainer explained everything in the best way possible, ensuring a thorough understanding.”
Benchmark Six Sigma (SP)
Lean Six Sigma Black Belt -
Dilip Gatla
19/05/2024
TL, Bank of America
Appreciation for Helpful and Clear Assistance.
“Thank you, it was very helpful. The assistance and clarity provided were greatly appreciated.”
Lean Six Sigma Green Belt
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Impressed with Well-Prepared Materials and Teaching Methods
“I’m thoroughly impressed with BenchMark’s course materials and teaching methods. The Minitab practice data and check sheets are exceptionally well-prepared, making the learning experience highly effective.”
Benchmark Six Sigma (SP)
Lean Six Sigma Black Belt

