GoCardless is becoming a leading startup, living and breathing its motto of ‘Recurring payments made simple’. This ventures unifies the world’s Direct Debit networks, simplifying them and opening up access to everyone. Even cooler is the fact that they open-source a good chunk of their code. Since its 2011 start, GoCardless has processed more than a billion dollars for over 12,000 businesses across the UK and Europe. Pretty neat!