JK&B Capital is a venture capital firm in Chicago that is focused in the software, IT and communications markets. Founded 1996 in Chicago, Illinois, United States by David Kronfeld and George Spencer, this private equity and venture capital firm invests in debt financing, Series C, Series B, and Series F. It usually funds early and late stage ventures. Its portfolio companies include EarlySense, Pharma Two B, and Sage Intacct. As of January 2020, the company had 31 exits and 104 investments. The company has over $1.1 billion of capital under management.