Monterrey is the most heavily unionized city in Mexico, with the possible exception of Mexico City. More than 60% of the total workforce in the manufacturing sector is unionized. Apparently, many of the workers in the domestic industrial workforce are members of the so called "white unions," or unions not affiliated with one of the national confederations of workers. White unions tend to be less demanding of management and seldom strike. The major national unions, CTM and CROC, are active. Unions will not adversely affect a new start-up, but management should be aware and prepared for them from the onset.

Local government in Monterrey is controlled by the ruling PRI party and their ties to the unions in the region are legendary. Monterrey's business community is especially globally-oriented, and this tends to enhance political support and co-operation with the commercial sector.

The State of Nuevo Leon is actively promoting other areas of the state, outside of Monterrey. The congestion of this industrial city coupled with the lack of infrastructure and diversity in other regions will result in some resistance to new business locating in Monterrey.

Union pressure is a political reality in Monterrey, and should be expected in any new start-up operation.