Jasper Wireless has quietly become a force in the internet of things, brokering and managing many of the connectivity agreements – including AT&T’s increasing number of connected car partnerships – that link appliances, gadgets and vehicles to mobile networks. On Wednesday, Jasper announced it has raised a $50 million round led by the government of Singapore’s investment arm Temasek Holdings, and according to the Wall Street Journal, the funding raises its valuation to $1 billion.