Founded in 2010 as an online loyalty card service, Punchh has since grown into a marketing platform serving more than 115 restaurant chains, including Pizza Hut and Quiznos. Now it’s raised a $20 million Series B to expand into more retail verticals and increase the use of artificial intelligence and machine learning in its cloud software. The funding was led by Sapphire Ventures, with participation from returning investor Cervin Ventures. Along with its angel and Series A financing, this brings Punchh’s total funding so far to about $31 million.