The people
behind collana

Our management stands for what defines us: a passion for technology, an understanding of people and the ambition to always find the best solution.

With this attitude, they are the reason why we are the best choice for smart companies.

The team

The team introduces itself

Dirk Wieland

As CEO of collana, Dirk is committed to the further development of the group with great personal dedication and enthusiasm.

Nicole Wehner

As CMO, Nicole is responsible for the Group's public image and works with the teams to build collana into a strong brand.

Fabian Gehlhaar

As CFO at collana, he can contribute his knowledge of M&A and operations and drive the Group's expansion.

Andreas Thies

At collana, Andreas contributes his tech expertise as CTO by networking the subsidiaries and supporting overarching projects.

Best Choice for Smart Businesses

Dirk Wieland

Chief Executive Officer

Right from the start of his career, Dirk - who is actually an IT engineer by trade - successfully brought together various companies in the venture capital environment. As Managing Director of MAC IT-Solutions, he has been a major player in the ERP market for omnichannel retailers in the DACH region for 20 years.

Fairness in dealing with employees and customers is a key success factor for me. I also see collana IT as a successful platform for mutual respect, sustainability and entrepreneurial expansion.

Nicole Wehner

Chief Marketing Officer

Nicole has held various positions in the ERP and CRM environment for over 20 years - from consulting and project management to sales. During this time, she has been a pioneer in the digital transformation process from mail order to e-commerce and omnichannel retail. As CMO of MAC IT-Solutions, she used her expertise to play a key role in shaping the growth and positioning of the company.

The IT world is becoming increasingly complex. Our pooling of experts for very specific customer needs enables us to find the best solutions. This opens up a wide range of new perspectives for customers and employees.

Fabian Gehlhaar

Chief Financial Officer

Fabian spent many years advising companies in the tech and digital sector on transactions as an M&A consultant. He then spent four years as CFO at a rapidly growing e-commerce company.

Creating shared values, but also respecting the different cultures - for me, this is what cooperation in the collana Group symbolises.

Andreas Thies

Chief Technology Officer

Andreas is a technician through and through. After studying computer science and gaining a doctorate in software technology, he worked in various roles in the digital sector - from software development to managing large IT departments.

For me, finding and utilising synergies within the group primarily means learning from each other. This includes sharing success stories as well as dealing openly with mistakes and setbacks.