An interesting piece, with a number of players I just heard of.
In KDNuggets: By Thuy T. Pham, U. of Sydney.
.... We detail the list of top 50 companies in Artificial Intelligence according to CBInsights. This list was KDnuggets most popular tweet recently, but the tweet only had the image and no company names or details. Here we list companies by category and in the order of high to low equity funding in each group. Company overview (e.g., headquarters location and total equity funding raised) is based on information as it have appeared on crunchbase.com (as of 8 March 2017). .... "