---
title: "Customers · Why CISOs choose VORNAC | VORNAC"
description: "The teams that run continuous validation with VORNAC: banks, insurers, KRITIS operators, OEMs. In their own words."
url: https://www.vornac.com/en/customers
lang: en
published: 2026-05-27
updated: 2026-10-18
alternate_de: https://www.vornac.com/customers
---

# The teams that ship secure.

Banks, insurers, KRITIS operators, and OEMs run continuous validation with VORNAC. In their own words, and the logos to back it up.

## Security teams in regulated industries, *across the DACH region*.

Companies that run VORNAC include Carl Zeiss, Penny (REWE Group), ProMinent, Enpal, Pfitzenmeier, RefundRebel, Knooing, otris software, RealTyme, Ther.app, Inventissimo, mbits GmbH, Instaffo GmbH, IP-Crew GmbH, tilko GmbH and Hochwarth IT GmbH.

![Carl Zeiss](https://www.vornac.com/client-zeiss.png)

![Penny / REWE Group](https://www.vornac.com/client-penny.png)

![mbits GmbH](https://www.vornac.com/client-1.png)

![ProMinent GmbH](https://www.vornac.com/client-prominent.png)

![Enpal](https://www.vornac.com/client-enpal.svg)

![Pfitzenmeier](https://www.vornac.com/client-pfitzenmeier.png)

![IP-Crew GmbH](https://www.vornac.com/logo_ipcrew.png) ![Instaffo GmbH](https://www.vornac.com/client-3.png)

![RefundRebel](https://www.vornac.com/client-refundrebel.png)

![Knooing](https://www.vornac.com/client-2.png)

![tilko GmbH](https://www.vornac.com/client-5.png)

![otris software](https://www.vornac.com/client-otris.png)

![RealTyme](https://www.vornac.com/client-realtyme.png)

![Hochwarth IT GmbH](https://www.vornac.com/client-hochwarth.png)

![Ther.app](https://www.vornac.com/client-therapp.png)

![Inventissimo](https://www.vornac.com/client-inventissimo.svg)

## Why C-Level in regulated industries *switched to continuous validation*.

"

We build software for hospitals. Security isn't a feature, it's table stakes. Our partners need to hit the same bar we hold ourselves to. VORNAC delivers on both fronts. Instead of one-off engagements, we get continuous testing that matches our release cadence, findings we can ship straight into the backlog, and full visibility into our security posture at any moment. A partner that operates as an extension of our team, and one we recommend to our healthcare customers without hesitation.

Michael Müller CEO mbits GmbH · Healthcare Software

"

Test results flow straight into our internal ticketing system. Findings are prioritized by technical severity. Our engineering team works through them as regular development tasks. The exact technical write-ups eliminate long alignment rounds on reproducing the bug.

Nikolai Gulatz CIO Instaffo GmbH · HR Tech

"

VORNAC's licensing is a flat fee. That lets us bake security into every new software module as a fixed line item from day one. Unlimited test runs mean predictable budgets for our mid-market clients. No surprises.

Bernhard Gauß Managing Director IP-Crew GmbH · IT Services

"

As a Wi-Fi and network specialist, we build the infrastructure our customers run their business on, and that responsibility doesn't end at handover. With VORNAC, we have a partner that probes those networks continuously and autonomously, not once a year. We catch risks before they turn into incidents, and we can show our customers hard evidence that the networks we operate are secure.

Christopher Wesch Managing Director tilko GmbH · Network Infrastructure

## See what continuous validation *looks like* in your environment.

30-minute session with our team. No procurement gymnastics.