Simon Thompsons former job is included corporation called
https://en.wikipedia.org/wiki/CRH_plc
"is an international group of diversified building materials businesses which manufacture and supply a wide range of products for the construction industry. The company was established and incorporated and is currently domiciled and managed in Ireland where it ranks as the largest Irish company."
"CRH is structured into four activities:
Heavyside materials (including cement, aggregates, concrete)
Heavyside products (such as precast concrete products)
Lightside products (construction accessories, glass and glazing systems, fencing, among others)
Distribution (builders merchant chains such as Bauking in Germany)
The holding company for CRH's American operations is Oldcastle, Inc.

CRH's operating companies include:
Oldcastle APG,
C.R. Laurence Co., Inc.
De Ruwbouw Groep (DRBG)
-Calduran
-Dycore
-Heembeton