Pros
Large firm with access to project opportunities worldwide if you are in the right division. Decent health benefits. For environmental scientists in the large business unit catering to provate industry, most seem somewhat happy with sole source work.
Cons
This firm is pretty much a large holding company. They buy companies at a rapid rate and don't integrate them well. There is not an overarching system to link people and service offerings, there is no communication between business units, morale is low, and everything is about the bottom line. Upper management is completely disconnected. The Water Division is what once was Malcolm Pirnie, but the culture is completely different from what Pirnie once was and the Pirnie people are leaving at an alarming rate.