Infogrid, an IoT startup which can retrofit an existing building to make it “smart”, has raised $15.5 million. The Series A funding round was led by Northzone, with participation from JLL Spark, Concrete VC, The Venture Collective, Jigsaw VC, an unnamed real estate investment group and an unnamed large international asset owner, although one report speculated that it is Starwood Capital, the property-focused investor. Infogrid’s platform combines IoT sensors with proprietary AI analysis and has had some success re-vamping facilities management (FM) for some of the world’s largest FM providers, such as global banks, supermarkets, restaurant chains and the NHS.