LinkedIn - we have a main John Carpenter Club Group and professional groups for alumni in the medicallegalfinanceengineeringmilitary and creative industries, political sphere and public sector. You need to join LinkedIn to become a member of any of  these groups.

CLS Alumni Relations is on Twitter. You need to join Twitter to follow them.

The JCC also has a private Facebook Group with more than 950 members, including Old Citizens and former teachers: The John Carpenter Club Facebook Group. You need to join Facebook to follow this group. Other, associated groups include:

Old Citizens Eton Fives Facebook Group

City of London School for Boys - Class of 2010

City of London School for Boys - Class of 2011

City of London School - Class of 2015

City of London School website
City of London School on Wikipedia