Security should not be a luxury.
We built Perimeter because we kept running into the same problem: the tools that give real external security visibility are built for enterprise budgets and enterprise teams. Smaller businesses — the ones that need it just as much — are left guessing.
Perimeter was started by three people who kept hitting the same gap: a security specialist, a data engineer, and a developer, each of us had worked with businesses trying to understand their external exposure and finding no good option between “nothing” and an enterprise contract.
So we built the option in between: the same quality of external visibility, designed for a business with a small IT function or one that relies on a managed service provider — not just organisations with a dedicated security programme.
Domain expertise
The checks Perimeter runs, the severity logic it applies, and the remediation guidance it surfaces are grounded in hands-on security expertise — not scraped checklists.
Infrastructure built for scale
Built to scan and correlate large volumes of external signals quickly and reliably, turning raw internet data into structured, actionable findings.
Built to be used, not just deployed
Security tools fail when they're too complex to use consistently, so we built Perimeter to be the kind of tool that gets opened regularly — not just during incidents.
What we believe
Visibility first
You cannot protect what you cannot see, and understanding what your business exposes to the internet should be free and instant.
Accessible does not mean shallow
Accessible does not mean dumbed down — it means presenting real technical depth in a way non-specialists can act on directly.
European by design
We are a European company building for European businesses: infrastructure in the EU, GDPR-compliant practices, and data sovereignty as a baseline, not a marketing point.