3Com Megahertz - PC Card ISDN card
AboCom Systems, Inc. - PC Card ethernet and ISDN cards
AVM - PC Card ISDN cards
Dynalink Ltd. - PC Card modem and ISDN cards
Eicon Technology Corporation - PC Card ISDN cards
Electronic Frontier Ltd. - PC Card ISDN card
Farallon Communications, Inc. - PC Card ethernet and ISDN cards
Network Systems Integration - PC Card ISDN card
PC Card International - PC Card ISDN, combination, multimedia, and PCMCIA adapter cards
Psion Connect - PC Card modem, ethernet, ISDN, and combination cards
RATOC Systems, Inc. - PC Card SCSI, ISDN, network, and video cards
Synchrotech - PC Card modem, ethernet, and ISDN cards