The party was formally established on 20 February 2018 in Bucharest Corina Crețu, European Commissioner for Regional Policy, announced on 17 January 2019 that she would be a candidate in the European Parliament election on behalf of PRO Romania.

[18] Four days later, senator and former Minister of National Defence Adrian Țuțuianu announced that he joined the party,[19] becoming the first senator to join PRO Romania.

[23] However, its MEPs sit in the Progressive Alliance of Socialists and Democrats (PES) and not in the Renew Europe group.

[24] Nevertheless, on 26 January 2021, the executive bureau of PRO Romania met to stop the merger procedure between the party and ALDE, thereby formally ceasing the union between the two parties.

[26] Since its establishment, many high-profile former members of PSD or ALDE[27] have joined PRO Romania, including: Notes: 1 The MPs were elected on PSD's and ALDE's lists.