Vocera

Vocera Communications makes high-tech walkie talkies for hospital employees who have their hands full. Its digital voice communication system works over wireless computer networks and includes a communications badge worn around the neck and server software. The company also offers an optional standard-size phone handset. Its systems support text messaging and can be configured to make and receive telephone calls using smartphones and other mobile devices. Vocera markets its products primarily to health care facilities; it counts more than 750 hospitals as customers and about 100 other customers in hospitality, retail, and libraries. Vocera filed an initial public offering seeking $80 million in July 2011.