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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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Excellent Learning Experience
The training was well-structured, insightful, and easy to grasp. The trainer’s expertise and engaging delivery made the learning process both effective and enjoyable.
Lean Six Sigma Green Belt
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Dr. Taruni Vellangulam
23/10/2025
Insightful and Practical Lean Six Sigma Training
The Lean Six Sigma course provided a comprehensive understanding of process improvement methodologies. The blend of theoretical concepts with real-world case studies made the learning experience highly engaging. The instructor was knowledgeable and encouraged interactive discussions, which helped clarify complex topics.
Lean Six Sigma Green Belt
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Knowledgeable session
The session was highly knowledgeable and insightful, providing a clear understanding of key concepts with practical relevance. It was an engaging learning experience that added great value to my professional growth.
Lean Six Sigma Green Belt
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Outstanding and Engaging Training Program
The program was excellent, led by a facilitator who is a strong resource and exceptional at engaging all participants. Using real-time, practical examples, the sessions were highly interactive and impactful.
Lean Six Sigma Green Belt
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Priyanka Mittal
19/10/2025
Manager, KPMG
Highly Effective Program
The program was well-structured, informative, and provided valuable insights, making it a highly effective learning experience.
Lean Six Sigma Green Belt
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Harsheel Vora
19/10/2025
Senior Assistant Vice President, Wells Fargo
Knowledge worthy sessions
All the sessions were really amazing and worth every minute where the knowledge was shared by the professor. The sessions involved very detailed discussions regarding every topic.
Lean Six Sigma Green Belt
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Great Platform and very supportive
This course is really necessary in these competitive days which will give you an extra edge.
Lean Six Sigma Green Belt
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Excellent skill development
The course content was highly accessible and understandable. The classes were detailed yet easy to follow, making the learning process smooth and effective.
Lean Six Sigma Green Belt

