Qihoo 360 and Mitsui-backed nanosatellite provider Spire has raised an undisclosed amount from Luxembourg Future Fund on its way to a $70m close.

Spire, the US-based nanosatellite producer backed by internet company Qihoo 360 and conglomerate Mitsui, attracted an undisclosed sum yesterday from state-owned investment vehicle Luxembourg Future Fund (LFF).

The funding was provided as part of a $70m series C round set to close later this month. The other investors in the series C round have not yet been revealed.

Founded in 2012 as Nanosatisfi, Spire operates a network of nanosatellites aimed at the maritime, aviation and meteorology sectors. The technology enables…