There is a third row of three units here (not just the single one shown accupied by X-on).
According to the sign outside they are occupied by:
19 - The Woodbridge Vets.
20 - Volker Fitzpatrick.
22 - X-On.
25 - Oftec.
26 - Stalsen.
(They do appear to be larger units than 10 - 18 but I didn't look closely).