Agger Labs
UK endpoint security vendor whose signature-less agent detects and kills active ransomware encryption in milliseconds, independently of cloud or EDR updates.
Visit Website ↗ + Add to Compare Claim This CompanyOverview
Agger Labs builds an endpoint agent purpose-built to stop ransomware at the moment of encryption rather than relying on signature matching or behavioral baselines built up over time. The agent runs locally, works offline, and is designed to detect and terminate malicious encryption processes within milliseconds, including against zero-day ransomware variants it has never seen before. A companion “Defend” module is built to stop attackers from disabling the organization’s existing EDR tools during an attack, so Agger is positioned to run alongside incumbent endpoint security stacks rather than replace them.
The company is based in Chatham, England, and is led by CEO Glenn Wilkinson, who has a background in offensive security. Its product has earned an AAA certification from SE Labs, an independent UK testing lab, and supports a wide range of legacy Windows versions back to Windows 7 and Server 2000 — a deliberate bet on environments that can’t easily be modernized.
Agger Labs was a finalist in the inaugural Black Hat Europe 2025 Startup Spotlight Competition, alongside Capsule Security, Geordie AI, and VulnCheck, though it did not win. The company has not disclosed funding or named customers publicly.
Innovation Matrix Assessment
Has a working, independently certified product and a Black Hat Europe finalist placement, but founding date and development history are undisclosed, making its pace of iteration hard to assess.
A signature-less, offline-capable ransomware kill-switch that runs alongside existing EDR addresses a real SOC pain point: stopping encryption before damage is done rather than after.
No disclosed funding and no named customers; Black Hat Europe finalist status is a genuine signal, but market traction otherwise rests entirely on the company's own claims.
Local, signature-less encryption-process termination is a sound technical approach, but anti-ransomware kill-switches already exist among established EDR and anti-ransomware vendors.
SE Labs' AAA certification is credible independent third-party testing evidence, which is more concrete than most early-stage vendors can offer.
Ransomware remains one of the most damaging and persistent attack types, and legacy-system support extends its relevance to industrial and government environments that can't modernize quickly.
Why CISOs Should Care
Offers a last-line-of-defense layer that can stop ransomware encryption in milliseconds even if other defenses and EDR tools are disabled or bypassed.
What Makes It Different
Detects and kills ransomware by its real-time encryption behavior rather than by signatures or cloud-dependent behavioral models, so it keeps working offline and against unseen variants.
The Matrix Verdict
55/100 — INCREMENTAL INNOVATOR
Agger Labs is an Incremental Innovator: a credible, independently tested anti-ransomware tool with a sensible architecture, held back from a higher tier by undisclosed funding, no named customers, and limited public information to verify claims beyond the SE Labs certification.
Editorial Note: Claims vs. Verified Findings
The SE Labs AAA certification and Black Hat Europe finalist status are independently verifiable; claims about customer satisfaction and deployment speed come only from the company's own site and could not be corroborated.
Sources
Alternatives to Agger Labs
Unknown Cyber Inc.
CISO ReviewedMalware genomics platform using automated deep static analysis and code-lineage comparison to identify unseen malware, variants, and supply-chain…
Synack Inc
A penetration-testing-as-a-service platform pairing a vetted researcher community with AI-driven attack surface discovery for continuous security validation.
Horizon3.ai
Autonomous penetration testing company whose NodeZero platform self-attacks networks without persistent agents, aiming to replace annual manual pentests…
Cogent Security
Agentic AI platform that autonomously triages, investigates, and remediates vulnerabilities as a force multiplier for security teams.
Airlock Digital
Application allowlisting (deny-by-default) platform that blocks unapproved executables, scripts, and processes to prevent ransomware and malware execution.
Horizon3.ai
Autonomous penetration testing platform (NodeZero) that safely exploits environments to find and verify real attack paths.