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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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Knowledgeable and Insightful Training
The training was well delivered and demonstrated strong subject-matter expertise. Concepts were explained clearly and confidently, making the learning experience both effective and enriching.
Lean Six Sigma Black Belt
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Saran raj Venkatesan
18/01/2026
Business Analyst, Cadex
Concise and Effective Course
The course was well designed and delivered clear, practical value. It provided a solid understanding of key concepts in a structured manner, making learning effective and easy to apply in real work scenarios.
Lean Six Sigma Green Belt
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Great Learning Experience
The program was well structured and offered strong practical exposure to key tools and methodologies. The hands-on approach made it easier to understand how DMAIC principles can be effectively applied to complex business problems. Overall, the training bridged theory and real-world application very well, enhancing both clarity and confidence in problem solving.
Lean Six Sigma Black Belt
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Well-Planned, Effective Training
The trainer demonstrated excellent expertise and facilitation skills, delivering the sessions with clarity and confidence. The module planning was well thought out and logically sequenced, which enabled effective learning and smooth progression of concepts. This structured approach made the training highly engaging and ensured better understanding and retention throughout the program.
Lean Six Sigma Green Belt
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Effective and Insightful Green Belt Learning Experience
The Green Belt sessions were well-structured and highly informative, with a good balance of theory and practical examples.The Facilitator was knowledgeable, engaging, and explained concepts with clarity and patience. Real-life examples and interactive discussions made the learning effective and interesting.
Lean Six Sigma Green Belt
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Data-Driven Continuous Improvement
The program clearly connected the various continuous improvement tools, helping me see how they work together as an integrated system. It also strengthened my ability to make decisions based on robust statistical methods rather than relying solely on experience or intuition, leading to more confident and objective problem-solving.
Lean Six Sigma Green Belt
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Excellent Overall Experience
Everything was well delivered and met expectations. The overall experience was superb, with high-quality content and effective delivery that made the learning both valuable and enjoyable.
Business Modelling Expert
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BME is definitely value-add
The BME course offers a strong foundation in decision-making tools and would be an excellent addition to the Black Belt curriculum. Integrating it into the BB program would significantly enhance mentors’ confidence and effectiveness when guiding projects, leading to more informed and robust decision-making.
Business Modelling Expert