Sigma Quality Consultancy

Leader in process & organizational optimization

TJ at a workshopOur belief is that any organization, whether small or big, can be transformed to a better functioning workplace that will improve customer relationships, employee engagement and financial performance.

We led projects across 8 industries and 30 companies that delivered performance improvements up to 50%.

Your partner to improve the performance of your organization

We have deep knowledge of Lean Management (including McKinsey’s 5 lenses approach), Six Sigma, Reengineering and transformations in manufacturing and service companies.

Typically, we supported and guided organizations in solving these challenges:

    • Constraints in processes and organization leading to loss of sales opportunities, slow time to market launches, long delivery lead times and slow responses to customer inquiries (to name a few)
    • Low engagement of staff: lack of motivation, initiative and empowerment
    • Making the strategy work: Implement strategies and initiatives successfully (e.g. get buy-in from all stakeholders, finish what you have started)

Our industry experience encompasses a broad range: Oil & Gas, Basic Materials, Industrials, Consumer Goods, Health Care, Telecommunications, Utilities and Financials.

How We Work

Together with our expertise you will realize your aspirations

We will bring our expertise & experience of improvement methodologies to realize your ideas and objectives. Together we will design effective solutions and implement them.

Intake and initial diagnosticsIntake and initial diagnostics

The first step is to listen and understand your challenges that need to be resolved. While we listen, we also collect relevant information to assess the situation and understand your aspiration for the future.
The outcome of this assessment is an overview of opportunities and levers to improve your organization and processes.

Focused analysisFocused Analysis

After these initial diagnostics we will propose you a solution path with a cost and benefit estimation to improve the performance of current processes and organization. The solution is tailored to your needs: depending how fast you want to improve, if internal resources and skills are available, and what kind of funding there is.

After acceptance of the solution path, we will form a team of specialists of Sigma QC and implement with your team effective and lasting solutions. 

Our “toolkit” contains deep expertise in the following fields:

    • Lean Six Sigma: Process analysis and improvements based on DMAIC approach
    • Lean Management, focusing on 5 dimensions: Customer, Process, Performance Management, Organization & Skills and Mindset & Behavior
    • Change Leadership
    • Project Management
    • Transformation Management


Services we are offering


  • Strategy execution: From strategy to planning, target setting and execution
  • End-to-end organizational and process transformation
  • Rolling out a Business /Operational Excellence program
  • Setting up project portfolio management and PMO

Training for leadership teams:

  • Introduction into Lean to start Lean initiatives
  • Lean for Executives: Bringing Lean thinking in the day to day work of a leader

Training for Business/Operational Excellence practitioners (Lean Six Sigma Belts):

  • Various trainings to enhance the Lean and Six Sigma tool set
  • Change leadership training
  • Statistics training
  • Coaching and mentoring to certification

For the training offering, see SQC Academy

SQC Academy

The trainings and workshops we offer

Lean Six Sigma:SQC Academy

  • Executive Management workshop – 2 days
  • Project Sponsor and Owner workshop – 2 days
  • Green Belt training + certification: 15 days + project work
  • Black Belt training + certification: 20 days + project work
  • Yellow Belt Training: 2 days
  • Lean Six Sigma awareness training – 1/2 day

Change Leadership:

  • Change leadership training for project leaders: 3 days
  • Change Pro Simulation® workshop, an engaging and realistic computer-based learning workshop: 1 day
  • Personal and team development with MBTI step I and II: 1 day

We are delivering all workshops and training as public and in-house event.

Who We Are

TJ Dijkstra 
Consultant and owner of Sigma QC

TJ is an international and cross-cultural leader in process & organizational optimization. He has a track record across 8 industries, 30 companies and over 100 projects that delivered performance improvements up to 50%.
As a certified Master Black Belt, he has a deep knowledge of Lean Management (including McKinsey’s 5 lenses approach), Six Sigma, Reengineering and transformations in manufacturing and service companies. Occasionally TJ is a key-note speaker on these topics.

TJ led project teams with consultants and local subject matter experts that improved constraints in organizations by using an extended toolkit of methodologies. He supported and advised Executive Management Teams to transform organizations into successful enterprises that serve their customers better and are attractive to work for.

We have a network of experts supporting us.

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