U.S. team communications enabling platform Slack has raised $4.9 billion in new round of financing that values the company at more than $5 billion, this time led by Japanese holding company Softbank

This seems like another huge investment from a $100 billion fund that is dumping an enormous amount of money in some of the biggest deals in Silicon Valley, this time participating in a $250 million round for the workplace collaboration tool.

The company got some interest from U.S. online shopping major Amazon at a $9 billion price tag.

On April 1, 2016, The Slack raised $200 million at a $3.8 billion post money valuation. The round was led by U.S. venture capital firm Thrive Capital, with participation by peers GGV, Comcast Ventures and Slack’s existing investors, including Accel, Index Ventures and Social Capital.