The first line of defense in protecting your business from attackers is your 'perimeter security'. This involves Firewalls, Routers, IDS/IPS, VPN and Unified Threat Management (UTM) Devices. i2S, Information Security Solutions has a number of solutions to protect your perimeter,
Application Security Products:
Fortinet provide a number of physical and virtual next gen firewall, unified threat management and vpn appliances for entry level, medium and enterprise businesses.
Palo Alto Next Gen Firewalls, available in physical or virtual appliance and cater from entry level to enterprise. Their performance is second to none.