Existing investor Microsoft Ventures came back for a round that valued customer engagement platform Outreach at $500m and took its total funding to $125m.

US-based customer engagement software provider Outreach raised $65m on Monday in a series D round that included Microsoft Ventures, the corporate venturing subsidiary of software provider Microsoft.

Venture capital firm Spark Capital led the round, which also featured Sapphire Ventures, DFJ Growth, Four Rivers Group, Mayfield Fund, MHS Capital and Trinity Ventures. It valued the company at about $500m, CEO Manny Medina told Business Insider.

Outreach has developed a software platform that automates and manages interactions between company sales staff…