Atom Finance Celebrates $28M Series B  Crowdfund Insider. : Consumer software platform Atom Finance this week announced a $28 million Series B funding round led by the SoftBank Latin America Fund with participation from existing investors General Catalyst and Base Partners. The funding will be directed to partnership and subscriber growth, staffing, and opening an office in Miami, Florida. “We created Atom to provide unparalleled access to institutional investing resources and tools, filling the white space between overpriced, clunky institutional platforms and antiquated websites tailored to retail investors.