Simulmedia has now raised about $32.5m in total.

Verizon and salesforce.com backed iOS push technology developers Urban Airship concludes $25m Series D round. The round was led by August Capital with contributions from others. The funds will be used to expand the workforce for accelerated product development.

In our series of interviews with leading innovation and venture developers, Andrew Gaule, founder of the Corven Corporate Venturing Network, talks to David Roth, managing partner, Innovestment Partners and Get Stirred Up

Last year, units in the sector sealed substantial exits, including UK-based media communications company WPP (also see our profile), US-based advertising company Interpublic, and education company Knowledge Universe, which was co-founded by Michael Milken. See the second paragraph for our most influential ranking.

DLA Piper, Bell Mason Group, Global Corporate Venturing and Silicon Valley Bank join a non-exclusive initiative to offer complimentary services.

Alongside Comcast Ventures in the C round were venture capital firms and angel investor David Sacks.