Laird said it would pay $1, with potential cash earn-out payments based on a multiple of 0.4 times revenue over a four-year period from 2014 up to a maximum of $60m if $150m in revenue is achieved.

The money will be used to begin manufacturing the company's QuantumFilm image sensors, which are currently being evaluated by phone manufacturers ahead of shipping devices in the second quarter of next year.

As well as raising an undisclosed amount in series C funding, US-based Green Plug has also appointed Kevin Jones to the position of chief scientist.

NSN said it would continue to support the M2M activities of Cumulocity.

Matterport, a Y Combinator startup that has created technology that can do a 3D scan of building interiors, has raised $4m.

Earlier in the month, Nest hired Tom vonReichbauer as its chief financial officer from electric car maker Tesla.