The DataStack is a new data architecture to serve the needs of financial authorities to increase and improve volume, variety, and velocity of data available. This allows supervisors and regulators to inform their decision-making process and to implement their mandate more effectively. Initially focused on Nigeria, the long-term outcome of the project will be the development of a portable data stack, a blueprint that the Bill & Melinda Gates Foundation will be able to offer to financial authorities in its focus markets and beyond.