Fidelity Growth Partners Europe (FGPE), backed by mutual fund manager Fidelity's balance sheet, led the round, and was joined by return backers, venture capital furms Index Ventures and Greylock Partners.

In a regulatory filing earlier this month, Vidyo said it had raised a further $2m from one investor on top of the $97m raised in total by September last year.

Investors in D extension include Siemens Venture Capital and Fidelity Biosciences.

Mitralign, a US-based heart treatment company, raises its fourth round of funding, in a deal led by Forbion Capital Partners, which spun off from Dutch-based bank ABN Amro.

Pelamis is looking to raise strategic financing by the end of the summer.

US-based electric vehicle charging company raises the funds with backing from corporate venturing units of Siemens, Hartford and Toyota.

SAP's corporate venturing unit, Toshiba and Juniper Networks are reportedly joined backing the company by GE Asset Management.

Evernote raises the funds and also buys Penultimate, a handwriting app, which is the fourth biggest selling application for the iPad since Apple began selling them.

The US-based celebrity endorsement company raises the funds with backing from Germany-based advertising company Ad Pepper Media, after reporting a 70% rise in gross billings in 2011.

The US-based rechargeable battery company wins backing from Applied Ventures and In-Q-Tel, as well as DE Shaw Ventures and Generation Investment Management among others.