The company will invest the proceeds to advance its vision: to enable consumers with limited access to financial services to invest, save, and build wealth by unlocking the power of their paychecks.

The Series B round was co-led by Mercato Partners and Greylock, with participation from Core Innovation Capital, Portage, and ATX Venture Partners. The funding follows a Series A round of $22 million announced in October 2021.

Atomic is the market leading provider of payroll APIs, trusted by 12 of the largest fintech firms, including digital-first neobanks, alternative lenders, and digital brokerages, as well as over 70 financial institutions and partners. Atomic's payroll integrations provide the infrastructure to connect consumers to their financial data for verification of income and employment, automating set-up and updating of direct deposits, repaying financial obligations from their paycheck, optimizing tax withholdings, and accessing earned but unpaid wages.