 Acin Ltd., a London-based operator of a risk control data network, on Thursday said it closed 24 million in Series B funding with backing from JPMorgan Chase Co., Citigroup Inc. , BNP Paribas , Barclays , and Lloyds Banking Group. Existing investors Notion Capital, Talis Capital and Fitch Ventures, the equity investment arm of Fitch Group, also took part. 