Brief Overview

TDI provides a range of security technology, policy compliance, and audit consulting services.


Tetrad Digital Integrity (TDI)
1155 Connecticut Avenue NW, 11th Floor
Washington, DC 20036
Tel: (202) 337 – 5600


Paul Innella, CEO of TDI, has years experiences providing security services to commercial and US Government clients.


Founded in 2001, the company is headquartered in Washington DC with offices in Virginia and the UK.

Key Competitors

Kroll, Praetorian

Products and Services

TDI offers a range of security consulting services that can be grouped as follows:

• Technical – Incudes penetration testing, vulnerability assessment, product implementation, wireless security, secure network engineering, secure systems engineering, secure software development, system hardening, cryptography, computer forensics, and source code review.
• Compliance – Includes IT/IS audit, policy and process, C&A, security training, private impact assessment intrusion response, security configuration management, risk assessment, ST&E, system security plan, POA&M, and business continuity.

The company operates TDI Labs (also known as Arx Labs) which provides research and development support.