---
title: Contact
description: Contact avantguard cyber security AG
---

[![avantguard](https://avantguard.io/hs-fs/hubfs/LogoInverted.png?width=254&height=120&name=LogoInverted.png "avantguard")](https://avantguard.io?hsLang=en)

- [Services](https://avantguard.io/en/services)
- [About Us](https://avantguard.io/en/über-uns)
- [Experience](https://avantguard.io/en/erfahrung)
- [Career](https://avantguard.io/de/karriere)
- [Research](https://avantguard.io/en/blog)
- [Contact](https://avantguard.io/en/kontakt)

 En

- [English](https://avantguard.io/en/kontakt)
- [German](https://avantguard.io/de/kontakt)

[![avantguard](https://avantguard.io/hs-fs/hubfs/LogoInverted.png?width=144&height=65&name=LogoInverted.png "avantguard")](https://avantguard.io?hsLang=en)

<https://avantguard.io/en/kontakt#dark-header__mobile-nav__mmenu>

[![Dark-logo-small-1](https://www.fthemes.net/hubfs/Dark-logo-small-1.png "Dark-logo-small-1")](https://avantguard.io?hsLang=en)

- [Services](https://avantguard.io/en/services)
- [About Us](https://avantguard.io/en/über-uns)
- [Experience](https://avantguard.io/en/erfahrung)
- [Career](https://avantguard.io/de/karriere)
- [Research](https://avantguard.io/en/blog)
- [Contact](https://avantguard.io/en/kontakt)

 En

- [English](https://avantguard.io/en/kontakt)
- [German](https://avantguard.io/de/kontakt)

[![avantguard](https://avantguard.io/hs-fs/hubfs/LogoInverted.png?width=144&height=65&name=LogoInverted.png "avantguard")](https://avantguard.io?hsLang=en)

<https://avantguard.io/en/kontakt#dark-header__mobile-nav__mmenu>

- [Services](https://avantguard.io/en/services)
- [About Us](https://avantguard.io/en/über-uns)
- [Experience](https://avantguard.io/en/erfahrung)
- [Career](https://avantguard.io/de/karriere)
- [Research](https://avantguard.io/en/blog)
- [Contact](https://avantguard.io/en/kontakt)

Current language: English

- [English](https://avantguard.io/en/kontakt)
- [German](https://avantguard.io/de/kontakt)

## Contact

We look forward to hearing from you.

### Visit us

---

##### avantguard cyber security AG Neue Jonastrasse 52 8640 Rapperswil-Jona Switzerland

<https://avantguard.io/hubfs/flyer_avantguard_de.pdf?hsLang=en>

### Visit us

---

##### avantguard cyber security AG Rathausstrasse 12 8640 Rapperswil-Jona Switzerland

<https://avantguard.io/hubfs/flyer_avantguard_de.pdf?hsLang=en>

##### Menu

- [Home](https://avantguard.io/en/homepage)
- [Services](https://avantguard.io/en/services)
- [About Us](https://avantguard.io/en/über-uns)
- [Experience](https://avantguard.io/en/erfahrung)
- [Research](https://avantguard.io/en/blog)
- [Contact](https://avantguard.io/en/kontakt)

##### Services

- [Basic Health Check](https://avantguard.io/en/basic_health_check)
- [Penetration Testing](https://avantguard.io/en/penetration-test)
- [Red Teaming](https://avantguard.io/en/red-teaming)
- [AD Security Improvement](https://avantguard.io/en/ad_improvement)
- [HIST](https://avantguard.io/en/hist)
- [Other](https://avantguard.io/en/services)

##### Research

- [Cleartext Credentials](https://avantguard.io/en/blog/plaintext-credentials)
- [Overload Mapping](https://avantguard.io/blog/overload-mapping-vs.-memory-scanner)
- [Ransomware](https://avantguard.io/en/blog/what-really-helps-against-ransomware)
- [Red Teaming](https://avantguard.io/en/blog/red-teaming)
- [KeePass](https://avantguard.io/en/blog/attacking-and-hardening-keepass)
- [PowerShell Logging](https://avantguard.io/en/blog/powershell-enhanced-logging-capabilities-bypass)
- [AD CS](https://avantguard.io/en/blog/active-directory-certificate-services)

© 2026 avantguard cyber security AG

##### avantguard cyber security AG

Neue Jonastrasse 52   
8640 Rapperswil-Jona  
Switzerland  
+41 55 253 30 30  
[info@avantguard.io](mailto:info@avantguard.io)

![flagge_schweiz](https://avantguard.io/hs-fs/hubfs/flagge_schweiz.png?width=40&height=40&name=flagge_schweiz.png)

[Privacy Statement](https://avantguard.io/en/datenschutzerkl%C3%A4rung?hsLang=en)

[Follow us on LinkedIn](https://ch.linkedin.com/company/avantguard-cyber-security-ag) [Follow us on Twitter](https://twitter.com/avantguard_io) 

![](https://f.hubspotusercontent00.net/hubfs/7712601/back-to-top.png)