Smaller parties emerged during the 1970s and the 1980s, and they frequently became part of various coalitions. The PDP had been a component of the UCD, but it re-established its separate identity in 1982, joining with the AP for the October 1982 electoral campaign and forming part of the CP during the June 1986 elections. The PL, founded in 1977, also allied with the CP in 1986. The centrist Democratic Reformist Party (Partido Reformista Democratico--PRD), established in 1984, stressed decentralization and greater independence for local party leaders. A new radical right-wing party also emerged in 1984, the Spanish Integration Committees (Juntas Espanolas de Integracion). Founded by former Franco ministers, the party presented an updated version of the Falangism of the Franco regime. Another extreme right-wing party, the National Front (Frente Nacional-- FN), was formed in October 1986. On the left, the radical Progressive Federation (Federacion Progresista--FP) called for greater decentralization and for a neutralist foreign policy.

Special interest groups also established political organizations. The Spanish Green Party (Partido Verde Espanol-- PVE) convened its first party congress in February 1985. The group focused on wide-ranging environmentalist concerns, and it opposed NATO membership for Spain. There was also a Feminist Party (Partido Feminista--PF) that focused primarily on education.

Data as of December 1988