[4] Envisaging a better software, he quit working at GMW, got a bank loan so that he could purchase a workstation, and began two years of development.

[4][6] Ingram says he came close to an acquisition agreement with Autodesk in 1987 but the deal collapsed following the Black Monday financial crash.

[11] Ingram wrote a book,[12] Understanding BIM: The past, present and future, published by Routledge in 2020.

It shows his work and innovations in BIM in areas including architecture,[14] civil and structural engineering,[15] electrical and mechanical services,[16] construction management[17] and retail.

[19] Much of the material for his early innovations is archived in the Victoria and Albert Museum in London[20] including the first architectural animation of a real street scene from 1976.