Canadian engineering firm Stantec Inc. has agreed to purchase MWH Global, a water resources infrastructure company based in Colorado, for $793-million in cash.

Stantec said the acquisition of MWH, which has 6,800 employees worldwide, would make it a global leader in water resources infrastructure, increasing its presence in Britain, Australia, New Zealand, South and Central America, Europe and the Middle East. “MWH brings a global presence and reputation in water infrastructure that will…