  One of the basic motivations of the KLOE and KLOE-2 collaborations is the
test of fundamental symmetries and the search for phenomena beyond the Standard
Model via the hadronic and leptonic decays of ground-state mesons and via their
production in the fusion of virtual gamma quanta exchanged between colliding
electrons and positrons. This contribution includes brief description of
results of recent analysis of the KLOE data aimed at (i) the search for the
dark matter boson, (ii) determination of the hadronic and light-by-light
contributions to the g-2 muon anomaly and (iii) tests of QCD anomalies.
