Salesforce bought Slack for $ 27.7 billion, more than what was paid for Instagram, WhatsApp or Skype Posted byEntrepreneur en Español December 2, 2020 Leave a comment on Salesforce bought Slack for $ 27.7 billion, more than what was paid for Instagram, WhatsApp or Skype The software company acquired the business organization platform despite the fact that it reported operating losses equivalent to 93% of its revenues.