LONDON — When Hiroki Takeuchi joined McKinsey & Company in 2008, he had a front-row seat to the upheaval in finance.
After the collapse of Lehman Brothers, Mr. Takeuchi, a 26-year-old Oxford graduate, worked with some of the world’s biggest banks trying to figure out how to adjust to new regulations and a changed market. Then he quit.
For Mr. Takeuchi, memories of friends building successful start-ups at college outweighed the lucrative rewards offered by the blue-chip consulting firm. He joined forces with two McKinsey consultants, feverishly writing code out of his parents’ house on a minimal budget to create his own technology start-up.