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Helping you put your security controls to the test


Web Application Penetration Testing and Vulnerability Assessments

Targeting web applications and apis, Tetsu’s testers systematically look for weaknesses in application functionality and security controls.

Network Penetration Testing and Vulnerability Assessments

Network penetration tests are aimed at discovering vulnerabilities in the target network related to issues such as misconfigurations or unpatched systems.

Information Security Consulting

Have a more general security question or concern? Give send us an email at and we’d be happy to see how we can help you!


Tetsu Enterprises LLC, headquartered in Littleton, Colorado, provides web application and network penetration testing services. Tetsu’s goal is to provide clients with high quality security assessments, and perhaps more importantly, with a quality report.

Contact Us

Have a question about our services? Please email us at and we’ll get back to you as soon as possible.