Congestion in cities is a global problem. There are roughly 4 million vehicles in Bangalore, and the average worker in London spends around 227 hours a year commuting. Using crowdsourced data, Urban Engines is helping cities to become smarter, less congested and more efficient.

Condemned as "immoral and unjust" by the Church of England and sparking outrage for its 5,838% interest rates, payday loan company Wonga doesn't have the cleanest of reputations. New chairman Andy Haste promises to change that by putting the customer first.

How often do you get your hair cut? When was the last time you ate out? Do you subscribe to Netflix? Questions more akin to filling out online dating profiles will soon be asked by mortgage providers across the UK. But is it another case of a step too far for big data?

American Express is synonymous with privilege and luxury – so its latest venture may seem surprising. Its Bluebird Bank helps Americans let down by traditional banking, who may not even have a bank account. What's driving the makers of the Black Card to bank the unbanked?