Chain builds cryptographic ledger systems to make financial services smarter, more secure, and more connected. Previous customers included market leaders like Visa, Nasdaq, and Citigroup as well as start-ups building novel financial products. The company raised $44M from Khosla Ventures, RRE Ventures, Thrive Capital, and strategic partners including Visa, Nasdaq, Citi, Capital One, Fiserv, and Orange.