Centennial Technologies, Inc. - PCMCIA encryption card
Digital Privacy, Inc - PC Card encryption card
Envoy Data Corporation - PC Card memory, encryption, and modem cards
Litronic, Inc. - PC Card encryption card and smart card readers.
Marx International, Inc. - PC Card encryption cards. Mykotronx, Inc. - PC Card encryption card.
Omnisec AG - PC Card encryption card.
SPYRUS - PC Card encryption cards.
Wibu-Systems - PC Card encryption cards

Smart Card Adapter

SCM Microsystems, Inc. - PC Card readers