  The systematic program of heterotic line bundle model building has resulted
in a wealth of standard-like models (SLM) for particle physics. In this paper,
we continue this work in the setting of generalised Complete Intersection
Calabi Yau (gCICY) manifolds. Using the gCICYs constructed in Ref. [1], we
identify two geometries that, when combined with line bundle sums, are directly
suitable for heterotic GUT models. We then show that these gCICYs admit freely
acting $\mathbb{Z}_2$ symmetry groups, and are thus amenable to Wilson line
breaking of the GUT gauge group to that of the standard model. We proceed to a
systematic scan over line bundle sums over these geometries, that result in 99
and 33 SLMs, respectively. For the first class of models, our results may be
compared to line bundle models on homotopically equivalent Complete
Intersection Calabi Yau manifolds. This shows that the number of realistic
configurations is of the same order of magnitude.
