US-based marketing platform developer Dynamic Signal received $25m in series D funding on Monday from backers including software provider Microsoft’s investment arm, Microsoft Ventures, and mass media company Time Warner.

Private equity firm Akkadian Ventures and venture capital firms Focus Ventures, Trinity Ventures, Venrock and Rembrandt Venture Partners also supplied funds for the round.

Dynamic Signal’s software lets companies handle internal communications and leverage the social connections of employees in order to market products. The platform also integrates with messaging…