ALMA continuum images of the sample of 31 discs with inner dust cavities (‘transition discs’) for which we find a significant proper motion anomaly (|Δμ|/σ_|Δμ| ≥3) indicative of the presence of companions. Assuming one companion dominates the proper motion anomaly (Sect. 2), the solid cyan line indicates the 50th percentile of the companion location (the cyan coloured areas are the 10th and 90th percentiles) as derived in Sect. 3.1 (see Figs. 2 and A.2, exception is GG Tau, whose companion could not be modelled). Bottom-right corner: Image of the Sun, for reference, as it is predicted to look at 1 Myr (Bergez-Casalou et al. 2022) with Jupiter’s orbit in cyan. The ALMA synthesised beams are included at the bottom left of each panel. Non-detections can be seen in Fig. A.1.