Toast, a $14 billion vertical SaaS company, has demonstrated significant growth and success in the restaurant technology sector. The company has achieved $1.5 billion in annual recurring revenue (ARR), with 48.4% of this revenue derived from payments. Toast Capital has also originated $1 billion in annualized loans. The company serves 120,000 restaurant locations in the US, marking a 29% year-over-year growth, and holds a 13% market share with 112,000 restaurant clients. Toast's founder emphasizes the importance of speed in their success, highlighting the value of rapid iteration and the ability to pivot quickly.