I was reading the history of LINX (London Internet Exchange) and was interested in how this organization got started.

https://www.linx.net/

******* London Internet Exchange

LINX is a mutually owned membership association for operators of Internet Protocol networks. We provide a neutral interconnection facility and peering platform, known as an Internet Exchange Point (IXP), and represent the interests of our members on matters of public policy.

* over 295 members (47 new in 2007) * over 600 connected member ports * >120 member-facing 10GigE ports * over 256Gb/sec of peak traffic * 34 new applications for membership during 2008, 51 in 2007

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https://www.linx.net/about/history-of-linx.html

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Back in November 1994, using a donated piece of equipment no bigger than a video recorder and without any legal contracts, five UK-based Internet service providers (ISPs) linked their networks in order to exchange data and avoid paying astronomical transatlantic bandwidth costs.

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LINX remains a company limited by guarantee, and not a charity. The "Memorandum and Articles of Association" makes interesting reading:-

https://www.linx.net/govern/manda.html

Perhaps the ethos of LINX could be a part of the future plans for Wikimedia UK?

Gordo