UK Professional Cartoonists Organisation (the PCO). This is the membership organisation which funds and runs the Bloghorn.

The PCO works with the Pro-Action Campaign to represent UK professional Visual Artists in Business.

Pro-Action Visual Artists In Business at The Bloghorn - for the UK Professional Cartoonists’ Organisation

Other friends:

Cartoonists Club of Great Britain. A social club for cartoonists, pros and not-quite pros.
British Cartoon Archive – at the University of Kent
. Find the history of UK cartoons and cartoonists there.
British Cartoon Museum
. The central London home of things cartoon.
UK Political Cartoon Gallery
. The central London home of things political cartoon.
US National Cartoonists Society
. Some good friends from across the Atlantic.
Federation of Cartoonists Organisations (FECO). Some good friends from across the channel.

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