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Unify Square CEO John Case.

Unify Square has raised an additional $10 million to help fuel growth of its platform that helps clients manage Microsoft communication products like Skype for Business and Microsoft Teams.

The Series C round was led by Primepulse SE, a global investment firm based in Germany. Total funding is now nearly $45 million.

Founded in 2008, Unify Square has developed technology that allows clients to monitor and manage Skype for Business and Microsoft Teams, particularly with enterprise hybrid cloud/on-premise environments. The 145-person company has more than 275 enterprise customers across more than 50 countries.

Bellevue, Wash.-based Unify Square is a longtime partner of Microsoft, where founder and former CEO Sonu Aggarwal once worked on the product roadmap and development for Live Communications Server and Office Communications Server – projects that preceded Lync, or what is now known as Skype for Business.

Aggarawal transitioned to CTO and was replaced last year by John Case, a former corporate vice president of global marketing, product management, and business teams for Office and Office 365 at Microsoft.

In a statement, Case called the new investment “a tipping point for us to propel our growth and make an impact on large enterprises looking to improve end-user productivity.”

Other investors in Unify Square include Microsoft, Bridge Bank, and Stanford University.

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