In 2005, the LSP entered the "Harmony Centre" coalition, which won 17 seats in the 2006 election.
centre | Centre Georges Pompidou | Rogers Centre | Barbican Centre | city centre | Sydney Entertainment Centre | Southbank Centre | National Exhibition Centre | Union of Christian and Centre Democrats | Harmony | Crystal Palace National Sports Centre | Queensland Tennis Centre | Harmony Korine | Capital Centre | Bhabha Atomic Research Centre | Air Canada Centre | Adelaide city centre | New Harmony, Indiana | National Arts Centre | harmony | Centre (ice hockey) | Centre College | Battersea Arts Centre | International Development Research Centre | Centre national de la recherche scientifique | Centre for Fine Arts, Brussels | Centre | Lakeside Shopping Centre | Banff Centre | Baltic Centre for Contemporary Art |
Association of political parties 'Harmony Centre' (Politisko partiju apvienība 'Saskaņas Centrs'): formed by the Social Democratic Party "Harmony", Socialist Party of Latvia and the Daugavpils City Party