The UK legal entity was originally incorporated as ETH DEV Ltd at Companies House, Cardiff, by Gavin Wood, Jeff Wilcke and Vitalik Buterin.
It was formed on 7th August 2014 as a private limited company and converted into a Community Interest Company (CIC) on 18th December 2014. Wikipedia defines CICs as:
A community interest company (CIC, pronounced "see-eye-see", or colloquially, "kick") is a form of social enterprise in the United Kingdom intended "for people wishing to establish businesses which trade with a social purpose…, or to carry on other activities for the benefit of the community"
This incorporation occurred just under a month after the incorporation of the Stiftung Ethereum on 14th July 2014, with the intention of the ETHDEV entities providing contracted services to the Foundation for development of the protocol. The EthSuisse for-profit was being quickly decommissioned at this stage, as the project switched definitively to a non-profit model after the "Red Wedding" on 7th June 2014.
All information on the legal entity is publicly available from Companies House, an executive agency of the British Government, here under ETH DEV C.I.C. (company number 09165464) from free.
Here's a summary, arranged by epoch:
Stiftung Ethereum and ETHDEV (July 2014 to February 2015)
- 7th Aug 2014 - Gavin Wood, Vitalik Buterin and Jeff Wilcke found ETH DEV Ltd as a private limited company, with one ordinary share each.
- 1st Sep 2014 - Vitalik Buterin and Jeff Wilcke are terminated as directors, transferring their ordinary shares to Gavin Wood on 19th Sep 2014 and 15th Sep 2014 respectively.
- 1st Oct 2014 - Aeron Buchanan appointed as a director.
- 25th Oct 2014 - Vitalik Buterin and Jeff Wilcke are readded as directors. Gavin Wood retains all three ordinary shares.
- 18th Dec 2014 - Company is converted from a private limited company into a CIC and is renamed as ETH DEV C.I.C.
The Interregnum (March 2015 to June 2015)
- 24 Mar 2015 - Aeron Buchanan is terminated as secretary with Kelley Becker appointed to that role the same day.
- 20th Apr 2015 - Gavin Wood transfers the three ordinary shares to the Stiftung Ethereum.
The Ming Dynasty (July 2015 to January 2018)
- 3th Sep 2015 - Gavin Wood is terminated as a director.
- 12th Aug 2016 - Kelley Becker and Jeff Wilcke are terminated as secretary and director respectively, with Frithjof Weinert being appointed as a director.
- 7th Jun 2017 - Frithjof Weinert is terminated as a director, with Ming Chan replacing him.
The Infinite Garden (February 2018 onwards)
- 19th Jan 2018 - Ming Chan is terminated as a director
- 7th Feb 2018 - Patrick Storchenegger is appointed as a director
- 19th Dec 2018 - Application to strike the company off the register
- 26th Mar 2019 - Company disolved via voluntary strike-off