Transforming Complexity into Competitive Advantage
With 25+ years of experience, TDC helps enterprises decode complexity, align people and systems, and deliver transformation that lasts.
Clarity First. People Always.
We believe lasting transformation starts with brutal honesty and human logic.
TDC combines systems thinking with stakeholder empathy — confronting complexity without compromise. We don't deliver frameworks. We deliver frameworks that work under pressure.
Tanja Drefke
Founder. Change Strategist. Transformation Architect.
With 25+ years leading multimillion-euro programs across global industries, Tanja brings clarity to complexity.
Her leadership bridges deep technical expertise with people-first design. Whether steering through governance chaos or aligning burned-out teams, she brings consequence-driven transformation that sticks.
Certifications
Expert in organizational transformation
Leading complex program delivery
Agile methodology expert
Enterprise agility specialist
Values in Action
Our principles aren't just words. They're the foundation of how we deliver lasting change.
Clarity
We make complexity visible so teams can act with focus.
From strategy to execution, we create pathways that cut through noise.
Accountability
We deliver what we promise and make impact measurable.
Our frameworks survive pressure because they're built on consequence.
Empathy
We embed human logic into every roadmap and rollout.
Real transformation requires real understanding of people and pressure points.
Built for Pressure. Designed for Permanence.
At TDC, we don't do surface-level consulting. We embed frameworks that survive real-world stress.
Built for Complexity
Cross-functional logic that aligns architecture and leadership.
Our frameworks bridge silos, connect stakeholders, and create lasting alignment across your organization.
Zero-Downtime Transformation
Delivery that protects operations while moving forward.
We implement change without compromising your core business — maintaining stability while driving progress.
Sustainable Impact
Structures that outlast org charts and leadership changes.
Our solutions are designed for permanence, embedding accountability that survives reorganizations and transitions.
Define Your Transformation Journey
Let's start a conversation about transforming your organization with clarity and consequence.