Section 20(1) of the Industrial Relations Act, 1990 provides that within one month after 31st December each year a trade union which is the holder of a negotiation licence shall send to the Minister a statement of the number of its members on the 31st December. Details of the trade unions membership numbers as at 31st December 2018 are in the following table.
Union
|
Membership at 31st December 2018
|
Association of Higher Civil and Public Servants (AHCPS)
|
3,200
|
Association of Secondary Teachers of Ireland (ASTI)
|
16,849
|
Forsa
(The Civil Public and Services Union (CPSU), Public Service Executive Union (PSEU) and the Irish Municipal, Public and Civil Trade Union (IMPACT) merged on 1 January 2018 to form Forsa).
|
79,570
|
Irish Federation of University Teachers (IFUT)
|
2,469
|
Irish Medical Organisation (IMO)
|
5,601
|
Irish Nurses and Midwifes’ Organisation (INMO)
|
42,232
|
Irish National Teachers Organisation (INTO)
|
38,545
|
Medical Laboratories Staff Association (MLSA)
|
1,565
|
Prison Officers Association (POA)
|
3,024
|
Operative Plasterers and Allied Trades Society of Ireland (OPATSI)
|
916
|
Services, Industrial, Professional and Technical Union (SIPTU).
|
202,787
|
Connect
The Technical Engineering and Electrical Union (TEEU) merged with UCATT on 1 January 2017 to form Connect.
|
39,000
|
Teachers’ Union of Ireland (TUI)
|
18,352
|
UNITE
|
21,440
|
Veterinary Officers’ Association (VOA)
|
266
|
Veterinary Ireland (VI)
|
1,134
|