Skype

GroupMe Inc. is a New York-based company that develops and operates a group messaging application designed to facilitate communication among users, including those without smartphones. Launched in 2010, the platform allows users to easily connect with friends, family, and coworkers through push notifications or SMS. GroupMe's services include group messaging, conference calling, and location and photo sharing, enabling seamless interaction within social networks. Since its inception, the company has experienced significant growth, processing billions of messages and expanding its team to 25 employees. Acquired by Skype Global, GroupMe operates with a degree of autonomy, maintaining an entrepreneurial culture while aiming to become a primary communications provider for a large user base.

Qik is an online messenger and mobile live video streaming platform that allows users to exchange video messages both individually and in groups. Launched in 2008, Qik has grown to support millions of users across more than 160 countries and is compatible with over 140 smartphone models, including iPhone, Android, Symbian, Blackberry, and Windows Mobile. The platform enables users to capture and share special moments instantly through features like video calling, video sharing, and video messaging, while also providing options to sync and save videos online and on desktops. Founded by Ramu Sunkara, Bhaskar Roy, and Nikolay Abkairov, the company is based in Redwood City, California, with an additional office in Zelenograd, Russia. In 2011, Qik was acquired by Skype Technologies, further enhancing its presence in the video communication space.

Rdio, founded in 2010 by Janus Friis, operates a digital music service that provides on-demand access to over 12 million songs. Users can discover, play, and share music without ads, and build a digital collection accessible across various platforms and offline. Rdio's library includes content from major labels and independent distributors worldwide. Headquartered in San Francisco, it launched in 2010 and is available in 51 countries.

TrialPay, Inc. specializes in cross-platform monetization and stabilization solutions, allowing merchants to connect with consumers through targeted promotions. Founded in 2006 and based in Mountain View, California, with an additional office in Berlin, the company offers a payment platform that enables customers to pay for one item by trying or purchasing something from another merchant. This innovative approach is utilized by various businesses, including those in software, games, online services, publishing, retail, and social networking. TrialPay's monetization toolkit, Evergreen, equips developers with the necessary tools to engage customers effectively, driving acquisition, revenue growth, and long-term value. As of March 2015, TrialPay operates as a subsidiary of Visa Inc.

Sonorit is a VoIP company.

Fon is a global WiFi provider that operates through a community WiFi model. It partners with major telecommunications companies and WiFi service providers worldwide, such as BT, Deutsche Telekom, SFR, SoftBank, Telstra, KPN, Proximus, Vodafone, Virgin Media, and The Cloud. These collaborations enable Fon to create a globally connected WiFi network, offering secure, scalable, and flexible carrier-grade WiFi services to its clients and their customers.