Three Blue healthcare plans partner with venture-backed healthcare technology company Lumeris to buy real time communication network Navinet, backed by GE Equities.

The Japan-based manufacturing company buys US-based optical networking company Nistica.

DBV Technologies, a France-based allergy treatment company, which was the first deal done by Shire Therapeutics' corporate venturing unit, also secures its first portfolio company flotation in Paris.

Marc Samwer, who headed Groupon's international operations and owns part of the company along with his brother Oliver, leaves during a torrid month for the company.

John Woolard, Alstom-backed Brightsource's chief executive, says: "The continued market and economic volatility are not optimal conditions for an IPO."

Envivio, a video delivery system spin-off which postponed its float last year, sets the range of the initial public offering.

Tibco's acquisition of the US-based data security company provides an exit for Germany-based software company SAP's corporate venturing unit.

The 3G and 4G mobile hardware company previously backed by Motorola reportedly eyes a $100m to $150m sale.

Dow Chemical buys the company previously backed by its corporate venturing unit.

The venture capital firm backed by Ofer Holding Group sells its stake in the Israel-based internet tools company, giving it a valuation of $1.3bn.