Financing round

RedMimicry secures million-euro seed

With realistic attack simulations against hackers: RedMimicry simulates complex cyberattacks and helps companies to strengthen their defenses.
News by Marc Nemitz Marc Nemitz · Berlin, 21. August 2025

Berlin-based cybersecurity startup RedMimicry has announced the successful completion of a seven-figure seed financing round. The round was led by High-Tech Gründerfonds (HTGF), with Capital Square from Hamburg, superangels from Munich and several business angels also participating. The capital is intended to enable the further development of the platform and the expansion of sales and the partner network.

Realistically simulating cyber attacks

RedMimicry's core product is a platform that realistically and automatically emulates multi-stage cyberattacks. Unlike traditional penetration tests or isolated tests, RedMimicry allows companies to simulate complex attack chains. For example, scenarios from the well-known ransomware groups LockBit or Black Basta.

Our vision is to offer companies the opportunity to protect themselves independently and effectively against increasingly complex cyber attacks.

Alexander Rausch, CEO and founder of RedMimicry

This allows technologies, processes and organizational procedures to be put to the test. This gives customers a realistic picture of their defense capabilities and enables them to close specific weak points.

Regulation increases the pressure

The demand for comprehensive security tests is increasing: With requirements such as the DORA regulation for financial service providers or NIS-2 for operators of critical infrastructures, regulatory pressure is growing. Until now, many companies have only tested their defenses selectively and often under conditions that can hardly withstand real attacks. RedMimicry offers a systematic approach here: repeatable and scalable simulations that make the status of your own cyber security measurable. The aim is to detect security gaps earlier and prevent costly attacks.

Investors focus on technological excellence

The investors are convinced.

With RedMimicry, Alex and Stefan are tackling one of the biggest risks for companies: protection against cyber attacks.

Björn Sykora, Principal at HTGF

Capital Square and superangels also see considerable potential in the technology and the founding team. Martin Ostermayer from Capital Square speaks of a revolution in preparing for complex attacks, while Franzi Majer from superangels emphasizes that RedMimicry enables companies to identify vulnerabilities before attackers can exploit them.

Focus on critical sectors

RedMimicry intends to use the fresh funding to expand its platform in a targeted manner. In future, the focus will be on attacks on critical infrastructures (operational technology, OT) and the financial sector. At the same time, the startup is investing in the expansion of its sales team and a growing partner network.

RedMimicry was founded in 2023 by Alexander Rausch and Stefan Steinberg. Both bring experience from the cybersecurity industry, including from Proofpoint and the German Cyber Security Organization (DCSO). The platform is already being used by medium-sized and large companies as well as managed security service providers.

With its seed funding, RedMimicry is positioning itself as an important player in the European cybersecurity market. The ability to simulate realistic attack scenarios and cover regulatory requirements makes the Berlin-based start-up an exciting partner for companies.


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