Brex provides corporate credit cards for startups that offer no personal liability, interest free payments, and instant approvals. It has raised over $500 million in funding since being founded in 2017 and is now valued at $2.6 billion. Brex also recently launched Brex Cash, which allows startups to earn returns on deposited funds. The company generates revenue through transaction fees and plans to continue its rapid growth trajectory with a Series D funding round in 2020.