Every month Emi Gal provides a round-up of 10 start-up companies which agencies should know about. Emi is the founder & CEO of Brainient, one of the UK’s leading ad-tech start-ups. Headquartered in London, Brainient is backed by some of the most prominent investors in the world including Seedcamp, Arts Alliance, Atlas Venture and 500 startups. You can find Emi on Twitter @emigal.