Slack Technologies, a corporate messaging and collaboration software startup, has received inquiries about a potential takeover from technology companies including Amazon, Bloomberg reported on Thursday.
A deal could value the company at at least $9 billion, Bloomberg reported citing people with knowledge of the matter.
Slack is a platform where employees can send messages, collaborate, organize and share files. The technology also integrates with a wide variety of business software—such as Salesforce.com (CRM) and Skype from Microsoft (MSFT)—so employees can do all their work within Slack.
San Francisco-based Slack has raised more than $500 million from venture capitalists and was valued at $3.8 billion at its last private financing round a year ago.
Both, Amazon (AMZN) and Slack were not immediately available to comment outside of regular U.S. business hours.