Founded by practitioners.
For practitioners.
Founded in 2022, ProxySec refocused its operations in July 2025. We are a Vienna-based IT security company with an international outlook — with a local presence and a dedicated legal entity in each market.
The Team
TM
Mag. Thomas Mayer, MSc
Managing Director
Responsible for strategy, business development and client relationships, with a focus on data centre infrastructure and complex security projects.
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CG
Christoph Gruber, MSc
CTO & CISO
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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RH
Raoul Himberger — from Dec. 1st 2026
Global Head of Sales & BDM
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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KR
Katharina Rahn
Inside Sales & Office Management
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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SB
Sebastian Braun
Sales Manager & Business Development
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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SV
Sebastian Veltze
Sales Consultant
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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NP
Norbert Primisser
ProxySec West & Backup
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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MB
Martin Braun
CTO & CISO Germany
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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BB
Bettina Braun
Data Protection
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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MR
Markus Reisacher
Sales Manager & BDM Germany
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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SA
Sharad Agarwal
ProxySec Dubai
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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AP
Alexander Popek
Terrion GmbH – Part of the ProxySec Group
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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PH
Peter Häusler
Terrion GmbH – Part of the ProxySec Group
Responsible for technology and information security, with a focus on NIS2, DORA and documenting regulatory compliance.
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Contact Us
STANDORT Österreich (HQ):
ProxySec IT GmbH
Börsegasse 11, Top 127-130a,
A-1010 Wien
STANDORT DEUTSCHLAND:
ProxySec IT GmbH
Marienstrasse 6 1/2,
D-87629 Füssen
STANDORT DUBAI:
ProxySec MENA L.L.C-FZ
Meydan Grandstand, 6th floor,
Meydan Road, Nad Al Sheba,
Dubai, U.A.E.
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