Since the introduction of NONEX PBC many Civil Engineering companies have used it, 

As have many Dimensional Stone Quarries.

Some examples are :- AMEC - Balfour Beatty - Cementation - Kiers - Lilleys - Mowlem - Norwest Holst - Nuttalls - Redrow Construction - Tarmac - Taylor Woodrow - Tilbury Douglas International - Wimpey's - PJ Wall's - John Paul's Construction - Lagan construction. 

Several Demolition Companies. 

And many smaller companies too numerous to mention here.