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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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Interesting and Interactive Sessions Provided Great Experience
“It was a great experience to learning with benchmark.Sessions are interesting and full of interaction. “
Benchmark Six Sigma (SP)
Lean Six Sigma Green Belt -
Really Good Training; Content Prepared Me for Exam and Future Job
” Training is really Good, I had very Good Learning time. As i am entirely new to this Lean Six Sigma but i can do it well in exam and in next job with the content covered as part of this session. “
Lean Six Sigma Green Belt
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Great Black Belt Course Session
“Great experience of BB course session, very well explained of each topic and practice session from the BB course. “
Lean Six Sigma Black Belt
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Concise Content; Knowledgeable and Patient Trainers
“The content was concise, and the trainers exhibited both knowledge and patience. The Six Sigma sessions were structured and methodological, ensuring a comprehensive learning experience.”
Lean Six Sigma Black Belt
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Course Enhances Professional Growth, Highly Recommended.
“I found the course amazing for professional growth. It’s a must-do if you are planning to expand your career or upskill yourself. Thanks to Benchmark and the trainers for a smooth study process.”
Lean Six Sigma Green Belt
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Excellent training; detailed, crisp topics explained
“Excellent Training Conducted by Mayank..All the topics were crisp and with complete detailing. Very approachable and elaborative in the learning experience.. “
Lean Six Sigma Green Belt
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Well-Organized Course with Excellent Instructor
“The course was well-organized, clear, and easy to follow, with an instructor who possessed excellent presentation skills and extensive knowledge.”
Lean Six Sigma Black Belt
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Great Experience; Daily Examples Aided Understanding
“It is great experience, the way the course has designed with day to day examples to understand the subject “
Lean Six Sigma Green Belt

