Photos and CV

has been Co-Spokesperson of the Management Board of the All for One Group since 27 October 2026. He is also CEO of Axians CEE and has been working within the VINCI Energies and Axians network for 15 years. As Business Area Manager, his previous responsibilities included the Axians divisions SAP Solutions & Technology, ICT Central and the business in Austria. Beier is a co-founder of what is now Axians NEO Solutions & Technology GmbH (formerly NEO Business Partners GmbH), which he integrated into VINCI Energies in 2014.

Beier has many years’ experience in the SAP and business applications sector, as well as in the integration of companies into the group. He is also a member of the SAP Partner Advisory Board. As the author of various specialist articles on business applications and SAP, and as co-author of the specialist book »Mobile Business Processes with SAP«, he is very familiar with the digitalisation and transformation of business processes.

Year of birth: 1968
Nationality: German

has been Co-Spokesperson of the Management Board of the All for One Group since 27 October 2026. A graduate in computer science, he combines more than 30 years’ industry experience with many years of responsibility as an entrepreneur and manager. His focus lies on establishing and further developing the cloud, managed services and software businesses.

In 1994, he began his professional career at what was then Germany’s second-largest IT services provider. In 2000, he founded ECS Enterprise Consulting Solutions and built up the company in the areas of consulting, software and systems integration. Following its sale to CANCOM SE in 2005, he spent 13 years in various management roles within the listed group, most recently as Executive Vice President with responsibility for the Cloud & Managed Services segment.

From 2018 to 2024, Diaz was CEO of Axians Germany. He then took the helm of the netgo Group as Group CEO from September 2024. In April 2026, he returned to VINCI Energies as COO of Axians Germany to prepare for the potential integration of the All for One Group.

Year of birth: 1967
Nationality: German

has been a member of the Management Board of the All for One Group since 27 October 2026. He has been Chief Financial Officer and a member of the Executive Board of the VINCI Energies DACH & CEE ICT business unit since January 2023. Prior to this, he held various senior financial management roles within VINCI Energies and Axians, including as CFO of VINCI Energies Deutschland ICT and Axians Networks & Solutions GmbH.

Vollmert has many years’ experience in finance, controlling and reporting, as well as in corporate acquisitions and their integration. His other areas of expertise include financing models, risk assessment, the optimisation of commercial processes, and SAP migrations and implementations.

Year of birth: 1974
Nationality: German

has been a member of the Management Board of the All for One Group since 27 October 2026. He was sole board spokesman and CEO of All for One Group from 1 October 2024 to 26 October 2026. He was CSO of the All for One Group from April 2021 to October 2022 and was board spokesman and Co-CEO from November 2022 to September 2024. He is considered an acknowledged expert in everything related to digitalisation and customer centricity. Zitz is also co-founder of B4B Solutions GmbH, Graz/Austria, which has been part of the All for One Group since 2016.

Year of birth: 1980
Nationality: Austrian

has been a member of the Management Board of the All for One Group since April 2008. After several different professional positions in Germany and abroad, the experienced financial and capital market expert's last position was CFO of a listed company in the medical technology Segment.

Year of birth: 1967
Nationality: German