Waste Management joins corporate-backed firm Physic Ventures investing in the US-based recycling incentives company, and sells it its social recycling platform Greenopolis.

Virgin Green, Potomac Energy Fund, Orix Venture Finance and The Pohlad Companies back the US-based water cooler company.

An energy arm of GE and Greenko are collaborating on a $115m project to launch a range of wind energy projects in India.

A long-term strategy that is paying dividends for the US oil major's corporate venturing unit.

Factors in the demise of a promising start-up heavily backed by venture capital firms and US government loans.

The battle to keep it clean means corporate venturing groups from a diverse range of businesses are converging on clean-tech - and finding a receptive audience for their investments.

How to strike deep partnerships in which well-established corporations put skin in the game via research dollars, joint development agreements, channel partnerships for customer acquisition or even equity investments.

The energy company backed by corporate venturing unit Energy Technology Ventures and venture firm Kleiner Perkins raised $26.5m in venture funding between November 2006 and May 2011.