As Plaid has expanded its fintech services, so, too, has it grown its customer base. Plaid got its start as a company that connects consumer bank accounts to financial applications but has since been gradually expanding its offerings to also include lending, identity verification, credit reporting, anti-fraud and payments. The 11-year-old company was almost acquired by Visa for $5 billion before antitrust regulators shut that deal down. Plaid went on to raise funding at a $13.4 billion valuation...