Woo Kim

Vonage Holdings Corp. engages in the provision of communication services through cloud-connected devices. It operates through the Business and Consumer segments. The Business segment provides cloud-based Unified Communications as a Service (UCaaS) solutions, which consist of integrated voice, text, video, data, collaboration, and mobile applications over its scalable Session Initiation Protocol based Voice over Internet Protocol network. The Consumer segment offers UCaaS services and features, via a single identity. The company was founded by Jeffrey Adam Citron on May 1, 2000 and is headquartered in Holmdel, NJ.

CallTower, Inc. provides hosted enterprise communications and collaboration applications and services. It integrates and supports cloud-based, Unified Communications and Collaboration solutions, including Cisco Unified Communications Manager, Microsoft Skype for Business, Office 365 and Adobe Connect services for business customers. The company was founded by Kelli Law and Robert C. Bolt in 2002 and is headquartered in South Jordan, UT.

WFW Cardiac, Inc. provides ambulatory cardiac monitoring and diagnostic services. Its services are used by physicians to monitor electrocardiographic data (cardiac events) for patients who are suspected of having heart rhythm disorders (cardiac arrhythmias) that often precede serious complications associated with cardiovascular disease or other conditions. The company is headquartered in Buffalo Grove, IL.

LifeWatch GmbH engages in the acquisition, holding, and management of companies that specialize in research, development, manufacture, sale, and distribution of equipment in the fields of electronics, medicine, as well as computer and engineering. It also provides telemedical services. The company was founded on July 18, 2001 and is headquartered in Zug, Switzerland.

Founded in 2000, Celsius Capital is a private equity firm headquartered in Silicon Valley, California