Slack investor Index Ventures backs Slack competitor Quill October 29, 2019 | Uncategorized Sam Altman, Index Ventures back a startup taking on Slack. Comments Related Posts Cendana Capital, which has been backing seed funds for a decade, has $278 million more to invest Jun 30, 2020 Construction #tech #startups are poised to shake up a $1.3-trillion-dollar industry Nov 17, 2020 #uber just streamlined the hell out of its app Nov 2, 2016 T-Mobile and Sprint’s merger deadline was extended — again Apr 29, 2019