The company also raised $2m in debt.

Alongside Google Ventures in the A round were venture capital firms New Enterprise Associates, Sierra Ventures, Crosslink Capital, SoftTech VC and Step Partners.

US-based CreativeLive has raised $8m in series A financing from Google Ventures, CrunchFund and Creative Artists Agency.

In February last year, venture capital firm RezVen Partners led the $4.4m A round in StyleHaul.

In August 2011, Innovid raised $9.5m in its B round from T-Venture, Sequoia Capital and Genesis Partners.

In January, Axel Springer said it had also bought a 49% stake in Germany-based conference provider Hy! Berlin.

Angel investor Dirk Wieland has also acquired 25.1%.

News provider Startup Dating said FreakOut founder Yuzuru Honda previously launched a content-matching ad platform called Brainer, which he sold to Yahoo Japan in 2008.

Samba Ads was founded in 2012 as a spin-off to online video platform Samba Tech.