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Built in UK Defence and Critical National Infrastructure

Defence-grade security for the commercial world.

We test your systems the way a real attacker would. The report satisfies your auditors. The findings tell your engineers exactly what to fix.

Why teams choose Tarian

The practitioner difference.

Built by practitioners who defended the systems the nation runs on.

Your attack surface. Mapped by a practitioner.

Every assessment is hands-on. We use tooling to move fast, but every finding is validated, tested, and confirmed by the practitioner doing the work.

Audit-Ready in Days.

Reports mapped to the frameworks your auditors and investors are already asking about. No scramble. No last-minute gaps.

From Finding to Fix.

We don't hand over a PDF and walk away. Every finding is written up, prioritised, and ready for your team to act on the same day.

Two Tracks. One Standard.

A standalone assessment or an ongoing offensive security partnership. Either way, you get the same senior engineers, the same rigour, and no hand-offs to juniors.

One-Off ValidationRecurring Engagement

One Business Day.

From your first message to a response from the engineer doing the work. No sales team, no ticketing system, no wait.

Fluent in Code and the Boardroom.

Technical findings your engineers can act on. Risk reporting your board and investors can understand. We make sure security lands in every conversation that matters.

Engineering Teams
Board & Investors

Most security testing is built to pass an audit. Ours is built to stop an attacker.

Most providers hand you a PDF and move on. We stay until your team has fixed it.

The Old Way

  • Automated scans packaged as penetration tests
  • A PDF report handed over and never mentioned again
  • Security considered after the build is already done
  • Findings written for compliance, not for your engineers
  • No support once the report lands in your inbox

The Tarian Way

  • Engineers who approach your systems the way an attacker would
  • Assessments that move with your environment, not against it
  • Security that shapes decisions before they become technical debt
  • Structured findings your team can pick up and act on the same day
  • Hands-on support until the vulnerability is fixed, not just documented

Client Feedback

Don't take our word for it.

Tarian Labs did not just run the usual scans and call it a penetration test. They worked through the tool output and discarded what did not hold up, then showed us what the real findings meant in our environment, including a route to Global Administrator we believed we had already closed.
CISO

CISO

UK Managed Service Provider

Read the case study: UK Managed Service Provider
What impressed us most was the integrity of the assessment. Tarian Labs gave us an honest, evidence-based evaluation of our security posture rather than inflating findings to justify the engagement. That kind of straightforwardness is exactly what you want from a security partner.
TD

Technical Director

UK SaaS Provider

Read the case study: UK SaaS Provider

Who we protect

From fintech to critical infrastructure, we protect the businesses attackers target most.

Your next breach is being planned right now.

Most businesses only act after an incident. The ones that don't are our clients.