The Companies we Keep: Graphing the UK Corporate Ownership register

I was recently part of a team of volunteer data scientists from DataKind UK who helped the NGO Global Witness to analyse the UK corporate ownership register. The results have been published in a variety of places.

Blog: How we mined the world’s first open data register of company control | Global Witness

Full report: The Companies We Keep | Global Witness

pyData London talk: Searching for Shady Patterns: Shining a light on UK corporate ownership - Adam Hill - YouTube


Hey Adam - thanks for sharing. I'm a big fan of your work on this!

I'd love to chat with you sometime about the deduplication problem you mention, as this comes up a lot.

I played around with this dataset at NICAR last year (as well as property ownership): Leila Haddou from the Times is looking at similar data using Neo4j as well.

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Thanks for submitting!

I’ve added a tag that allows your blog to be displayed on the community home page!

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Great work. Here in Belgium we have leading a similar effort. @William_Lyon we really should start looking into doing this at a European level.

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Hi @Cadarn,

Great work. In Italy, we have built some solutions for this kind of problems (using Neo4j since 2012).

You can find more on


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