The Mercury IO card is the corporate card designed for startups and is the top choice to earn rewards, issue employee cards, and analyze detailed transactions. The IO experience is built seamlessly into Mercury’s robust financial platform, along with other features such as business checking, corporate cards, expense management, and seamless payments. Mercury provides uncompromising stability, smoother payments, elevated banking security, and fine‑tuned user controls for its users. Security features also include up to $5M in FDIC insurance on checking and savings deposits. Mercury streamlines financial operations, freeing startups of all sizes to focus on business growth at scale.