LiquidPlanner is a platform-independent, online project management system which features range estimates (e.g. 3–5 days) to express the uncertainty in project schedules. The firm was founded in 2006 and launched their first beta release to the public in 2008. This collaborative software is accessible via modern web browsers and mobile applications for iPhone, iPad, and Android operating system-based devices. LiquidPlanner was founded by Charles Seybold and Jason Carlson in 2006. LiquidPlanner launched a public beta at the DEMO 08 conference. In November 2017, Todd Humphrey became CEO of the company, replacing Liz Pearce. LiquidPlanner is privately held. It was the first recipient of capital from the Seattle-based Alliance of Angels seed fund in June 2009.
