SoftBank has invested $7m in Altaeros Energies, which is developing floating airborne wind turbines able to generate twice as much energy as tower-based models.

The sovereign wealth fund of Singapore invests in US-based FiscalNote, a company predicting the outcome of legal and regulatory decisions using artificial intelligence.

E-book platform Ridibooks closed its series A round with investments from financial services firm Mirae Asset and conglomerate Doosan.

Marketing firm Blue Focus Communcations has co-led the $8.8m first tranche of a planned $11.6m round for predictive analytics company Blab.

India-based, One97-backed MobiSwipe will close a series A round between $5m and $7m in early 2015.

NTT Docomo was joined by Konica Minolta and Flextronics in the round, which will fund commercialisation of Knightscope's robotic crime prevention system.

The lithium energy storage company plans to expand its operations into new markets using the funding, which was co-led by corporate-backed firm Chrysalix Set.