Human-led testing, delivered by senior consultants

3L337 Consulting is a human-led, AI-assisted penetration testing firm. Senior consultants define the test, validate every finding, and own the report; automation and AI widen coverage and speed up the routine — never the judgment.

Our story

Founded by seasoned cybersecurity professionals, 3L337 Consulting has built its reputation through years of hands-on work in penetration testing, red teaming, and risk assessment. We began with a simple commitment — help organizations navigate a fast-moving threat landscape with testing they can trust — and we continue to set our benchmarks on security standards and client trust.

At the core of our philosophy is a steadfast belief in ethical standards, transparency, and the relentless pursuit of security best practices. We treat every engagement as a partnership, delivering clear, actionable insight that helps you build real cyber resilience.

Our methodology is grounded in industry-leading frameworks and tailored to each client’s environment. We blend technical rigor with strategic guidance and AI-assisted coverage, so assessments are both thorough and practical — from in-depth security testing to collaborative purple-team exercises that drive measurable improvement.

Even our name reflects the standard we hold ourselves to: 3L337 is leet-speak for “elite” — a nod to classic hacker culture, and a reminder that the work has to be worth your trust.

How we work

Every engagement is human-led and human-accountable. AI-assisted enumeration and correlation improve discovery across complex environments, but a senior consultant validates exploitation and owns the report. Read more about our human-led, AI-assisted methodology.

Meet the team

We’re a small, senior team — you work directly with the people doing the testing.