Spok Holdings, Inc., through its subsidiary, Spok, Inc., provides healthcare communication solutions in the United States, Europe, Canada, Australia, Asia, and the Middle East. The company’s products and services enhance workflows for clinicians and support administrative compliance. It delivers clinical information to care teams when and where it matters to enhance patient outcomes; and provides GenA Pager, a one-way alphanumeric pager. The company offers subscriptions to one-way or two-way messaging services, as well as alphanumeric pagers that are configurable to support unencrypted or encrypted operation; and ancillary services, such as voicemail, and equipment loss or maintenance protection services, as well as sells devices to resellers who lease or resell them to their subscribers.