I put 2.9 million registered offices on a map.
It shows firms with a registered office in the UK, excluding those with a dormant or non-trading status.
If you're wondering about the spike in the North West, it's Warrington.
A solid reason for this eluded me but some fine explanations were given by the LinkedIn community. The most likely turned out to be a large number of umbrella firms used by contractors to major distributors such as Amazon.
This map is almost entirely inspired by Population Mountains created by Matt Daniels at The Pudding. His was a breathtaking piece of work on a global scale - highly recommended viewing.
Making this visualisation
- Companies House monthly update for the company address data
- NSPL postcode lookup to generate approximate lat/lngs for every address