Editing Workers' Commissions (section)

===Former affiliates===
{| class="wikitable sortable"
! Union !! Abbreviation !! Founded !! Left !! Reason not affiliated !! Membership (1981)<ref name="meer">{{cite book |last1=van der Meer |first1=Marc |title=Trade Union Development in Spain: Past Legacies and Current Trends |url=http://www.mzes.uni-mannheim.de/publications/wp/wp1-18.pdf |access-date=17 February 2022 |date=1997 |publisher=Mannheimer Zentrum für Europäische Sozialforschung |location=Mannheim}}</ref> !! Membership (1994)<ref name="meer" />
|-
| [[Federation of Agriculture]] || FECAMPO || 1977 || 2000 || Merged into FEAGRA || 15,689 || 17,899
|-
| [[Federation of Agrifood]] || FEAGRA || 2000 || 2016 || Merged into FI || ''N/A'' || ''N/A''
|-
| [[Federation of Banking and Savings]] || FEBA || 1976 || 1997 || Merged into COMFIA || 7,868 || 31,863
|-
| [[Federation of Communication and Transport]] || FCT || 1997 || 2009 || Merged into FSC || ''N/A'' || ''N/A''
|-
| [[Federation of Construction and Woodworkers]] || FECOMA || 1984 || 2014 || Merged into FCS || ''N/A'' || 44,581
|-
| Federation of Energy || || || 1998 || Merged into FM || 6,057 || 8,754
|-
| [[Federation of Financial and Administrative Services]] || COMFIA || 1997 || 2014 || Merged into Servicios || ''N/A'' || ''N/A''
|-
| [[Federation of Food Processing]] || FAYT || 1977 || 2000 || Merged into FEAGRA || 21,511 || 31,625
|-
| [[Federation of Metal]] || || 1976 || 1993 || Merged into FM || 103,161 || ''N/A''
|-
| [[Federation of Metalworkers and Miners]] || FM || 1993 || 2014 || Merged into FI || ''N/A'' || 124,020
|-
| [[Federation of Paper, Graphic Arts, Communications and Entertainment]] || FESPACE || 1994 || 1997 || Merged into FCT || ''N/A'' || 13,903
|-
| [[Federation of Private Services]] || FSP || 1984 || 2014 || Merged into FCS || ''N/A'' || 31,681
|-
| [[Federation of Public Administration Employees]] || FSAP || 1977 || 2009 || Merged into FSC || 5,444 || 63,519
|-
| Federation of the Sea || || || 1987 || Merged into FETCOMAR || ''N/A'' || ''N/A''
|-
| [[Federation of Textile, Leather, Chemical and Allied Industries]] || FITEQA || 1994 || 2014 || Merged into FI || ''N/A'' || 51,053
|-
| Federation of Transport and Communications || FTC || 1978 || 1987 || Merged into FETCOMAR || 36,092 || ''N/A''
|-
| [[Federation of Transport, Communication and Sea]] || FETCOMAR || 1987 || 1997 || Merged into FCT || ''N/A'' || 74,361
|-
| Federation of the Unemployed || || || || || 1,778 || 10,574
|-
| [[National Federation of Chemicals]] || || 1977 || 1994 || Merged into FITEQA || 19,913 || ''N/A''
|-
| [[National Federation of Commerce]] || || 1978 || 1996 || Merged into FECOHT || 8,655 || 19,769
|-
| National Federation of Construction || || 1977 || 1984 || Merged into FECOMA || 43,745 || ''N/A''
|-
| National Federation of Entertainment || || 1977 || 1994 || Merged into FESPACE || 917 || ''N/A''
|-
| National Federation of Graphic Arts || || 1977 || 1994 || Merged into FESPACE || 9,357 || ''N/A''
|-
| [[National Federation of Hotel and Tourism Workers]] || FEHT || 1978 || 1996 || Merged into FECOHT || 9,320 || 23,196
|-
| National Federation of Insurance || FES || 1977 || 1997 || Merged into COMFIA || 1,129 || 2,913
|-
| National Federation of Leather || || || 1984 || || 9,111 || ''N/A''
|-
| [[National Federation of Mining]] || || 1976 || 1993 || Merged into FM || 15,118 || ''N/A''
|-
| National Federation of Textiles || || || 1984 || || 17,646 || ''N/A''
|-
| [[National Federation of Textiles and Leather]] || || 1984 || 1994 || Merged into FITEQA || ''N/A'' || ''N/A''
|-
| [[National Federation of Trade, Hotels and Tourism]] || FECOHT || 1996 || 2014 || Merged into Servicios || ''N/A'' || ''N/A''
|-
| National Federation of Wood || || || 1984 || Merged into FECOMA || 14,451 || ''N/A''
|}