Build a bank.

You know how people use banks to borrow, save and manage their finances? Well, big companies need to do the same thing. But while people go to retail banks, big businesses use investment banks. So what’s the difference? Often the best way to understand how something works is to take it apart and put it back together again. So, if you wanted to build the greatest investment bank in the world, where would you start?

Here we are inviting you to assemble the building blocks of the First Imaginary Bank, a mythical financial services institution that, like Citi, is committed to understanding and advancing the financial objectives of clients that include expanding businesses and large-scale investors. First Imaginary is exactly like a real bank, only simpler. It's called First Imaginary Bank.

However, as well as giving you a feel for the basics of business banking, Builder will introduce you to a fundamental truth.