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Slack

Slack

Slack

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01 Apr 2016
$200,000,000
Unknown

Slack raises $200 million at $3.8 billion valuation

ZDNet
+7
16 Apr 2015
$160,000,000
Venture capital (Series E)

Used Daily By 750K Workers, Slack Raises $160M, Valuing Collaboration Startup At $2.8B

TechCrunch
+5
31 Oct 2014
$120,000,000
Venture capital (Series D)

Slack Communication Hub Raises $120 Million

Re/code
+3
22 Mar 2010
Seed fund
01 Jan 2009
$1,500,000
Seed fund
Rob Solomon, Bradley Horowitz, Marc Andreessen, +2

Watching the birth of Flickr co-founder's gaming start-up

CNET