SUMMIT MATERIALS INC CL A COM USD0.01 revenue for the last year amounted to 2.44 B USD, the most of which — 1.59 B USD — came from its highest performing source at the moment, West, the year earlier bringing 1.39 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought SUMMIT MATERIALS INC CL A COM USD0.01 2.62 B USD, and the year before that — 2.41 B USD.