*By Carlo Versano*
Slack, the popular workplace communication tool, is now valued at more than $7 billion.
The company announced Tuesday it closed a new $427 million funding round, making it one of the most valuable privately held tech start-ups ー and strengthening its position against tech titans like Microsoft, Google, and Cisco, all of which have their own enterprise products competing in the space.
San Francisco-based Slack, which allows members to talk in private chats and group channels, [said in a blog post](https://slackhq.com/slack-raises-series-h-round-of-financing-from-new-investors) it would use the capital investment to grow its business, which now has more than 8 million daily active users and 70,000 organizations paying for access.
The new valuation, up almost 40 percent from the $5.1 billion it was worth last year, makes Slack more valuable than Vice Media, fintech firm Robinhood, and online sports marketplace Fanatics, according to CBInsight's [Global Unicorn Club](https://www.cbinsights.com/research-unicorn-companies).
The funding round was led by General Atlantic and Dragoneer Investment Group and included T. Rowe Price, Wellington Management, Baillie Gifford and Sands Capital. Last year, Slack got a $200 million cash infusion from [Softbank's Vision Fund](https://www.recode.net/2017/9/18/16324754/softbank-slack-investment), the massive venture capital fund that has pumped billions into some of the most high-profile unicorns in Silicon Valley. It's raised more than $1 billion to date.
Tesla reported a surprise increase in sales in the third quarter as the electric car maker likely benefited from a rush by consumers to take advantage of a $7,500 credit before it expired on Sept. 30. The company reported Thursday that sales in the three months through September rose 7% compared to the same period a year ago. The gain follows two quarters of steep declines as people turned off by CEO Elon Musk’s foray into right-wing politics avoided buying his company’s cars and even protested at some dealerships. Sales rose to 497,099 vehicles, compared with 462,890 in the same period last year.
Tom’s Guide Editor-in-Chief Mark Spoonauer breaks down Apple & Amazon's latest product drops—what's hot, what's hype, and what really matters for users.
InnerPlant CEO Shely Aronov reveals how engineered crops like soybeans and corn emit signals when stressed—offering farmers early warnings to boost yields.
Payoneer CEO John Caplan discusses the implications of $100K H1B visa requirements—and how they could reshape tech talent, hiring, and U.S. competitiveness.
Electronic Arts, the video game maker of “Madden NFL,” “The Sims,” and other popular titles, is being acquired and taken private for about $52.5 billion in what could become the largest-ever buyout funded by private-equity firms.
