Venture capital (VC) firms Longitude Capital, Acadia Woods Partners, Artiman Ventures, investment bank JP Morgan, and Bright Capital, the corporate venturing unit of Russia-based industrial conglomerate Ru-Com Group, participated in the CardioDx round as new investors.

Last month, in a regulatory filing, JumpTap said it had raised $20m but the repeat investors in the latest $25m round include ad services group WPP.

Corporate venturing units backed 94 deals, 8.1% of the total venture capital market, between 2007 and 2010, using information from data provider Dow Jones.

SingTel Innov8, the corporate venturing unit of Singapore-based phone operator SingTel Group, backs US-based network equipment maker Capella Intelligent Subsystems.

Alstom invested $75m in BrightSource's E round, in addition to $55m committed last year as part of a $176m D round.

According to a regulatory filing, $122m has come from 36 investors after advice from Advanced Equities, compared to last month's update when $89.6m had been raised from 28 investors against a targeted $100m round.

News provider VentureWire said venture capital firm Longitude Capital was leading CardioDx's series E round (which it said was raising $40m).

SmartSynch, an electricity equipment company, raises $25.7m from 26 investors in an interim close as part of a planned $33.4m round.

According to a regulatory filing, the $89.6m for BrightSource has so far come from 28 investors after advice from Advanced Equities.

Barry Williams, chairman of the Management Dynamics since 2004, said the E round of between $25m and $30m would come ahead of its planned flotation.