Who's behind AVIZO
Not a single mandate, a team that fits. Leadership-experienced operators, curated for your transformation.
Nine executives. One shared principle.
Leadership with accountability for results, in mid-market companies as much as international enterprises.
Axel Kellermann
Founder & Transformation Executive
30+ years of leadership experience as an interim executive and entrepreneur. Accountable as business owner and program director for complex transformations in mid-market and enterprise settings.
„Change doesn't need consultants. Change needs partners.“
Dr. Alexander Wolf
Transformation Executive
Over 20 years of international executive experience, including as CEO of the Business Assurance division at TÜV SÜD (€335m revenue, 2,100 employees).
„Connecting technical complexity with human dynamics. That's the leadership challenge I'm passionate about.“
Sabine Laute
Transformation Consultant & Executive Advisor
25+ years of experience in complex transformations, from strategy and operating model to everyday implementation.
„Change is my common thread. Setting direction, building trust, and keeping teams moving even against resistance.“
Kevin Strewginski
Transformation Partner & Interim Manager
Over 10 years of experience stabilizing and repositioning mid-market companies. Certified transformation and turnaround manager (IfUS Heidelberg).
„Transformation rarely happens in comfort, it happens under pressure. What matters is leadership, clarity, and consistent execution.“
Andrea Fischer
Interim Management & Transformation Support
A unique combination of managing director, plant manager, and HR director experience. Certified restructuring and turnaround advisor (IfUS Heidelberg).
„Change without employees is like sailing without wind. But bring people along, and you can pick up remarkable speed.“
Norbert Tank
Interim CFO & Finance Expert
20+ years of experience in finance leadership, stabilization, and results accountability as CFO, commercial director, and head of finance and accounting.
„Just do it, just do it.“
Albert Harz
Managing Partner
Executive management and CISO in insurance IT, accredited ISO 27001 lead auditor, point of contact for regulatory security (NIS2, DORA, CRA, AI Act).
„Those who want to, find solutions. Those who don't, find problems.“
Oliver Gothe
Senior Management Consultant
Over 30 years of experience in project leadership, SAP consulting, and change management. Connects strategic and operational goals with deep SAP and IT expertise.
„Profile coming soon.“
Cedric Atta
CDTO, CIO, CEO
Over 10 years of C-level responsibility in digital transformations, including as CIO of Bauer Media Group. Currently on mandate as Director Group IT & Digital at WEPA.
„The 9th Core Circle member. Onboarding is underway, profile coming soon.“
Four qualities we hold ourselves to
Agile
We adapt approach and team to the situation, instead of forcing a rigid concept through.
Open-minded
We listen first and bring our experience in where it genuinely helps.
Confident
We take responsibility for difficult situations and stay until impact is visible.
Prudent
We think through risk, governance, and people from day one, not only once it turns critical.
A strong leadership core
Pooled leadership experience. Mid-market to enterprise. National and international.
250+
years of experience in the Core Circle
9
entrepreneurial Core Circle partners
100+
curated experts in the Growth Circle
25+
years of average experience per partner
Core Circle
Leadership-experienced transformation executives for steering, mandate leadership, and accountability for results.
Growth Circle
Scalable functional and industry depth for staffing complex transformation programs precisely.
Strategic Advisors
Internationally experienced individuals for strategic sharpening, market access, and critical sparring.
Cooperation Partners
Specialized firms for deep expertise, delivery capacity, and complementary delivery competence.
The right experience for your task, flexibly assembled, and jointly accountable.
Core Circle competence fields
Transformation & Steering
- Business transformation
- Turnaround
- Strategy
- Program/project steering
- AI transformation
Organization & People
- Change management
- Leadership & culture
- HR, workforce & capability building
- Organizational design
Systems & Performance
- ERP, SAP & digital transformation
- Performance management & OKR
- Compliance, data protection & law
Mid-market to enterprise. International. Peer review & quality assurance.
Ready for the next step?
Change begins with a conversation. We listen, ask the right questions, and create clarity for the next step.
Let's clarify what your transformation needs right now.