# Brad Lindenberg > Founder of Quadpay Brad co-founded Quadpay which was the first pay in four Buy Now Pay Later fintech in the United States. In just 3 years, he raised $50m in equity and $250m in debt and scaled the business to over $250m in revenue, 250 employees and $4bn transaction volume. In September 2020 Quadpay was acquired by Zip, an ASX listed company for over $1bn in merger consideration. Prior to that, Brad founded CalReply which grew to become the largest mobile calendar API before exiting to Rokt in 2016. Today, Brad spends his time mentoring founders, investing, travelling and enjoying time with his young family. ## Offerings - Video call (15 min): $350.00 ## Example Questions - How did you scale Quadpay so quickly? What was your growth strategy - I am stuck in my business or in my life, and need to talk to someone who has taken a similar path - Co-founder and team challenges ## Links - [Expert profile](/BradLindenberg) - [Avatar](https://media.intro.co/avatars/747967Na5Hefh_.jpg) - [Marketplace](/marketplace)