Nemesis by Persistent Security
Track on RadarAI Breach and Attack Simulation that adapts to your defences.
- Total raised
- —
- Employees
- —
- Founded
- 2022
- Momentum
- —
Data updated June 2026
About
About Nemesis by Persistent Security
At a glance
Nemesis by Persistent Security is a cybersecurity company specializing in Threat & Vulnerability Management, founded in 2022. It is privately held.
Persistent Security is an EU-native cybersecurity company headquartered in Eupen, Belgium, building Nemesis, a Breach and Attack Simulation (BAS) platform with an AI Operator trained by reinforcement learning. Traditional BAS tools tell attackers what to expect by running static playbooks. Real adversaries don't read scripts. Our AI Operator probes customer environments the way an attacker would, adapting to every defence it meets, and getting smarter with every campaign. Nemesis runs continuous, MITRE ATT&CK-mapped attack campaigns and gives security teams board-ready evidence of what holds and what doesn't. A second deliberate design choice: we deploy agents on each distinct configuration in the environment (typically a small set of golden images), not on every individual endpoint. Every endpoint built from a given golden image shares the same software stack, patch level, EDR and group policy, so one validation point is representative of every endpoint built from that image. Time to first assessment drops from months to days. Operational overhead drops from thousands of agents to a handful. We are EU-native by design: DORA and NIS2 alignment is built into the platform, the team averages 15+ years of offensive security experience, and our pricing is structured to reach the under-served SME and mid-market segment that legacy BAS vendors price out. Today we serve customers across financial services, critical infrastructure, defence and healthcare, with 30+ MSSP partners covering DACH, BeNeLux, and the Nordics. We're currently raising our Seed round to scale the reinforcement-learning pipeline, expand the offensive research team, and saturate the European MSSP partner channel.
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FAQ
Frequently asked questions about Nemesis by Persistent Security
When was Nemesis by Persistent Security founded?▾
Nemesis by Persistent Security was founded in 2022.
Is Nemesis by Persistent Security public or private?▾
Nemesis by Persistent Security is a privately-held company.
What does Nemesis by Persistent Security do?▾
Persistent Security is an EU-native cybersecurity company headquartered in Eupen, Belgium, building Nemesis, a Breach and Attack Simulation (BAS) platform with an AI Operator trained by reinforcement learning. Traditional BAS tools tell attackers what to expect by running static playbooks. Real adve…
What category does Nemesis by Persistent Security operate in?▾
Nemesis by Persistent Security operates in the Threat & Vulnerability Management category of the cybersecurity market.