How can I find a list of US-based or US-backed corporations doing business in Oaxaca, Mexico? Something like the Directory of American Businesses in Mexico would be a good jumping off point, but I don't have access to it. The American Mexico Chamber of Commerce has a broad listing of American companies doing work in Mexico, but it is not specific to Oaxaca and would require quite a bit more digging to match this.

I should be able to find the banks doing business in Mexico, and specifically in Oaxaca, but could use a hand to find leads on corporations doing other types of work in Oaxaca -- for example, mining, agri-business, weapon suppliers/manufacturers to federal or state forces, fisheries, apparel/clothing manufacturing or assembly, the 'maquiladora industry', etc etc.

Pls help me find US companies with ties to Oaxaca.