Bertelsmann, Recruit and Cox have contributed to a series C round for the online education platform Udacity to launch its nanodegrees programme and expand geographically.

Comcast and Amex-backed digital marketing technology provider Radius took its overall funding to almost $74m.

Digital media company Kin has closed a $12m series C round led by Corus Entertainment, with which it has formed a strategic partnership to launch a Canadian subsidiary.

Qualcomm is among the investors in a round raised by TouchPal, which has developed a keyboard app for use with smartphones, that totalled more than $20m.

Network protection company ESentire has raised $12.7m in a series C funding round featuring Cisco Investments and has now received almost $20m in total.

Content delivery network Fastly, which is used by websites including Twitter and The Guardian, has raised $40m in a round including IDG Ventures and O'Reilly AlphaTech Ventures.

The second-hand car auction platform, which has a string of corporate investors, has raised $260m in a round backed by Tiger Global Management and Warburg Pincus.

The Google-backed ride sharing company will use the latest funding to expand geographically across the US.

Car rental service Yongche, which is backed by Qualcomm and Ctrip, has raised an undisclosed amount in series C funding from investors including Baidu and GIC.