Who We Are

Strong’s Supreme Service Inc. (3Si) is an international management consultancy company that specializes in the effective implementation of change. Through diverse assignments entrusted to us, our comprehensive focus on mobilizing and enabling the human side of the change process using innovative but proven processes, methods and tools, have, over time become acknowledged as global best practice.


Our Services

3Si products and services are used by clients in more than 60 countries across a broad spectrum of sectors. Our Supreme Service™ model, the Organization Renewal™ process, the psychometric assessment tools and our results-driven training (SavilleStrong Learning) are the pillars of our approach and have been validated against the highest global standards.

If you are considering entering the field of management consultancy or are operating as a consultant, we know the many challenges that you are facing. Our Principles of Management Consultancy™ (POMC) course is built on competency mapping in a way to make competencies visible to move beyond theory into behaviours and skills necessary to practice as a successful Management Consultant. Our work with assisting Management Consultants to develop recognized competencies, prepare to achieve certification through an internationally acclaimed body and use best practice in serving their clients continues to demonstrate our own commitment to global best practice and standards.

Consultants to LeadersConsultants to Consultants

Our Latest Thinking

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Supreme Service: Beyond Good Service

Supreme Service™ is the ultimate marketing strategy. Our definition of Supreme Service, “Each encounter must be so satisfying that the customer looks forward to repea…

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Organizational Renewal: Change that WORKS!!!

Change is often a process that drains an organisation. We offer a change process that is practical, proven, and sustainable which evokes energy and ownership. This infect…

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SavilleStrong Learning

SavilleStrong Learning is a joint venture with Saville Consulting providing international accreditation for our training and public and in-house workshops. As part of our…

Our Testimonials

Dennis gets results! I've known Dennis since 1989. We first met at the Canadian Institute for Organization Management. I then invited Dennis to facilitate a strategic plan with Ontario Downtowns. He t…

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Latest Post

ORGANIZATION Renewal: Change with a difference

Posted on: 12/8/2013

WHEN it is time to make change, most of the people who will be affected by it – know it.  While the need to change is continuous, there are cir…

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