Our Services

Penetration Testing

We conduct penetration tests against networks and web applications to identify security vulnerabilities before attackers find them. Our specialized testing often identifies critical vulnerabilities competitors and vulnerability scanners miss. In a world where environments are assumed hostile, this provides the fortification required to fend off attacks while providing you with peace of mind.

Red Teaming

This is our specialized service offering. We emulate the tactics, techniques and procedures of sophisticated adversaries to identify vulnerabilities before they can be exploited. We develop attack scenarios with attacker objectives in mind that are specific to your company's business. Some threat groups are driven financially, others politically. We emulate these threats using bleeding-edge methodologies.

Vulnerability Scanning

Castling provides a robust vulnerability scanning solution made up of industry professional tooling as well as custom automation. This help identify vulnerabilities in your systems and report potential exposure. 

PCI Compliance Testing

Our services meet stringent PCI standards set forth in the Payment Card Industry (PCI) Data Security Standard (DSS). We bring OSCP and CISSP certified professionals who not only strive to meet your compliance goals, but identify exploitable vulnerabilities before cyber criminals are able to discover and exploit them.


Seattle, WA


Tel: (206) 880-0460