Nebula, Inc. was a hardware and software company with offices in Mountain View, California, and Seattle, Washington, USA.

Nebula was founded as Fourth Paradigm Development in March 2011 by former NASA Ames Research Center chief technology officer Chris C. Kemp, long-time colleague Devin Carlen, entrepreneur Steve O'Hara, with software engineer Tres Henry, formerly at Amazon Web Services and author of the AWS Console, named as the head of User Experience.

[1] In May 2011, Nebula closed a round of series A investment led by Kleiner Perkins Caufield & Byers and Highland Capital Partners, with participation from Google's first three investors—Andy Bechtolsheim, Ram Shriram, and David Cheriton, as well as other investors.

[3] In the fall of 2012, Nebula closed a $25 million series B investment led by Comcast Ventures and Highland Capital, and Google executive Eric Schmidt’s venture fund Innovation Endeavors became an investor.

[6] On April 1, 2015 the company announced on its website and confirmed on Twitter that it was ceasing operations.