The calendar optimisation software provider raised $11m in funding from investors including Slack Fund, with Accel and Greylock co-leading the round.

US-based time scheduling software developer Clockwise has received $11m in a series A round that incuded enterprise communication software provider Slack, TechCrunch has reported.

The round was co-led by Accel and Greylock with participation from SV Angel and private investors Michael Ovitz, Ellen Levy, George Hu, Soraya Darabi and Jay Simons. Slack participated through its investment subsidiary, Slack Fund.

Founded in 2016, Clockwise produces learning learning-based software that connects to a user’s work calendar to coordinate multiple schedules. The technology…