Mercury

Mercury is a fintech platform purpose-built to consolidate every aspect of business finance into a single, elegant product — replacing the fragmented mix of legacy bank accounts, separate expense tools, and manual finance workflows that most growing companies rely on. It offers business checking and savings accounts, debit and credit cards, bill pay, invoicing, expense management, and payments — including free domestic wires, same-day ACH, and international transfers in over 40 currencies — all accessible through an intuitive web and mobile interface with no branch visits required. Teams can issue virtual and physical cards to employees with customizable spending limits and merchant-level controls, automate approval workflows and reconciliation, and integrate directly with accounting tools like QuickBooks, Xero, and NetSuite to accelerate month-end close. Mercury is best suited for founders, finance leads, and operators at startups and small-to-mid-sized businesses — particularly those seeking operational efficiency without adding headcount — and it's especially popular among venture-backed companies, with one in three U.S. startups and more than half of Y Combinator cohorts choosing the platform. It directly addresses the opacity and inefficiency of traditional business banking by offering transparent pricing, up to $5 million in FDIC insurance through its partner bank sweep networks, and a customer NPS of 75, more than double the banking industry average.