Slack raises Series H round of financing from new investors

Dragoneer and General Atlantic lead $427 million investment round

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Today we’re happy to share that Slack will add an additional $427 million of investment at a post-money valuation of more than $7.1 billion. This Series H equity round is in addition to the $841 million previously raised. The lead investors are Dragoneer Investment Group and General Atlantic, joined by funds and accounts advised by T. Rowe Price Associates, Inc. and funds advised by Wellington Management, and Baillie Gifford and Sands Capital, as well as existing investors.

The way people work is changing, and we are committed to delivering the best product and experience for our customers in this new era. We pursued this additional investment to give us even more resources and flexibility to better serve our customers, evolve our business, and take advantage of the massive opportunity in front of us. Even with our rapid growth in just four years—we now have more than 8 million Daily Active Users (DAUs) and more than 70,000 paid teams—there is still enormous potential to change the way that people and organizations collaborate and work together.

Our mission is to make people’s working lives simpler, more pleasant, and more productive, and we are grateful for the support along the way. Thank you to our customers, partners and employees for making our growth and momentum possible.

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About Slack

Slack has transformed business communication. It's the leading channel-based messaging platform, used by millions to align their teams, unify their systems, and drive their businesses forward. Only Slack offers a secure, enterprise-grade environment that can scale with the largest companies in the world. It is a new layer of the business technology stack where people can work together more effectively, connect all their other software tools and services, and find the information they need to do their best work. Slack is where work happens.