Distribution of galaxies around giant radio galaxies studied in this paper. All of the 1.4 GHz radio maps were taken from NVSS survey. The red plus symbols denote the neighbouring galaxies within the radius of 5 Mpc from GRGs host, for which spectroscopic redshifts were available and have Δz ⩽ 0.003. The host of GRGs are marked as red pluses inside the red boxes. With the black crosses we indicate the galaxies with available spectroscopic redshifts but with low signal to noise ratio – this are not used to our studies. The blue boxes denote galaxies that are five magnitudes fainter than the host galaxy of GRG with Δz_phot ⩽ 0.02. In each map we plot the circles of 0.5 Mpc, 1 Mpc and 5 Mpc radius around GRGs host.