Membership of TRICS® has grown steadily from the system's first version in 1989 up to the current day.

When TRICS® 2011(b)v6.8.1 was issued in June 2011, 293 organisations were operating TRICS® licences. Click here to view growth by members

From a small number of consultants and County Councils, TRICS® membership has spread across various types of organisation including local government in Wales, Scotland and the Republic of Ireland. This graph shows the full split of member organisations by type.