Alongside Nokia Growth Capital in the series D round were venture capital firms, including Northgate Capital.

Reinet Investments, a Luxembourg-listed investment vehicle formed in 2008 out of luxury goods maker Reinet, and venture capital (VC) firm NanoDimension (the first deal from its second fund) co-led the D round.

The Japan-based information technology solutions provider owned by Japan-based company Nippon Steel, backs the Ireland-based transaction management software company alongside firms like Balderton Capital

Kaiser Permanente Ventures is joined leading the series D round by venture firm Redmile Group.

The Swiss-based healthcare company backs the US-based medical device company's series D alongside venture firms including Abingworth and the CIA's In-Q-Tel.

WPP is joined backing the US-based television and video analytics company by venture firms Hummer Winblad Venture Partners, Leapfrog Ventures, and Palomar Ventures.

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.