Security advisory firm specializing in security risk assessment, network and application penetration testing, and security architecture services.

Specializing in firewalls, VPN's and secure remote access solutions. Also provides anti-virus / virus removal services and builds hardened servers for HTTP, FTP, DNS, etc.

Specializes in the design and implementation of secure and highly available network and computing infrastructures.

Offers TSCM, computer forensics, and penetration testing services. Located in Toronto, Ontario.

Canadian firm specializing in wireless security, secure network architecture, penetration testing, and security policy review. Located in North Vancouver, British Columbia.

Provides security auditing, Linux Support, network design, application code review, technical documentation writing and remote data backup services.

Specializes in virus prevention and removal, secure wired and wireless network design and secure remote access, located in Calgary, Alberta.

A consulting company specializing in Linux, network and computer security. Located in Calgary, Alberta.

Offers a full range of services for securing networks and systems. Located in Orleans, Ontario.

Offers a range of computer support and consulting services including ethical hacking. Includes service descriptions, and company profile.