2680 physicists (of which 891 are students) 859 engineers 281 technicians 182 institutes 42 countries

The details

The CMS collaboration has

• Around 4300 active people (physicists, engineers, technical, administrative, students, etc.) [ latest details & plots ]

Of these members there are about:

• 1740 PhD physicists (1490 men, 250 women) [ latest details & plots ]
• 845 physics doctoral students (685 men, 160 women) [ latest details & plots ]
• 790 engineers (700 men, 90 women) [ latest details & plots ]
• 690 undergraduates (550 men, 140 women) [ latest details & plots ]

(the above categories are, by definition, non-overlapping)

A typical CMS physics paper will be signed by the PhD physicists and a significant
fraction of the doctoral students meaning it will typically have about 2100 signatories.