Grace Beauty-backed advertising optimisation platform GraphScience has been acquired by adtech company Centro for an undisclosed sum.

The semiconductor companies have exited digital power technology producer Powervation, which had raised $40m, in a $70m acquisition by Rohm.

Limerick spin-out Powervation, which raised $37m from investors including Intel Capital and Semtech, has been acquired by Rohm.

Smartphone manufacturer Blackberry has agreed to acquire mass notification service AtHoc, which had raised about $8m in capital, providing an exit to Intel Capital.

The online events platform, which counts DLA Piper and Grace Beauty among its investors, has closed a round that boosted its overall funding to $17m.

Hewlett-Packard is set to exit cybersecurity company Adallom, which had raised almost $50m in total, in a $320m acquisition by Microsoft.

Bosch, SanDisk and Xiaomi all exited motion sensor provider Pebbles Interfaces through an acquisition by virtual reality developer Oculus VR.

Google-backed residential solar marketplace Clean Power Finance is set to merge with solar finance provider Kilowatt Financial to form a new clean energy financier.

Personal loan marketplace ApnaPaisa has been acquired by loan provider Andromeda for an undisclosed sum in a stock and cash deal that allowed Intel to exit.