A number of the companies attending, including Yahoo, Microsoft, and Facebook, are urging Obama to curb surveillance programs after the extent of the information the U.S. collects through their systems was revealed. (Disclosure: CNBC has a content-sharing partnership with Yahoo's finance site.)
Several companies are introducing more encryption technology to shield users' data from government spies and other prying eyes.
CEOs from Netflix, Comcast, LinkedIn, Etsy, and AT&T will also join Tuesday's session. (Disclosure: Comcast is the owner of NBCUniversal, the parent company of CNBC and CNBC.com.)
(Read more: Judge to NSA: No, you cannot collect bulk phone records)
—By The Associated Press