After launching in New York City last year, Aereo said it would be expanding to 22 cities in the US this year.

US-based Shape Security has raised $20m in Series B funding led by Venrock and with participation from return backers Google Ventures.

Expedia joined travel expense software provider Concur Technologies and former executives Rich Barton and Erik Blanchford in US-based hotel search engine Room 77's $30.3m series C round.

Northgate Capital, which is majority owned by India-based financial services group Religare Enterprises, backs video marketing company TubeMogul, after deals backing US-based social data company DataSift in November and US-based IT infrastructure company Scale Computing in October.

CMU-backed Medical robotics firm Medrobotics has secured $33.6m in a series D round.

The TPG Biotech-backed hospital safety company raises more capital.

The $200m corporate venturing unit of Baxter International, Baxter Ventures, leads a $38m B round into Naurex, a US-based drug developer which has received technologies from Northwestern University.

Media company Discovery Communications says the investment is one of the "strategic growth opportunities in select investments in the next generation knowledge space."

IDG and Bertelsmann Asia unit reportedly looking to up investment in China-based luxury website Secoo next year.