DallasCon Wireless Security Conference - Held in Dallas, Texas. The 2003 conference was dedicated completely to Wireless Security. A wireless security Boot Camp and Certification exam was available.
Diversinet - Passport Certificate Server Security software for wireless e-commerce applications.
iD2 - PKI, public key infrastructure, smart cards.
mi4e - Develops mobile internet for ecommerce infrastructure software.
NTRU Cryptosystems - Delivers public key cryptography solutions to secure electronic media and wireless communications and content on mobile devices such as the Palm Pilot, or in any constrained environment.
SmartTrust - Secure transactions and exchange of information via the mobile phone with PKI security.