My newest research:
MetLife - U.S. based, sells life insurance and annuities, stock symbol MET; although it doesn't manufacture items, it does provide jobs in the U.S.
Edison - Edison International, provides electricity and energy in the U.S. - especially Southern California, stock symbol EIX (Burt, I assumed this was the Edison you referred to; if not, let me know.
Heinz - went private in early 2013, is based in Pittsburgh; interesting fact - I found an article that states that Heinz products are made in China; this article also listed several companies that make products in the U.S.; Here's the link:
Kicking Heinz Ketchup to the Curb Mars - privately held, since the recession Mars was building a factory in the U.S., the first in 35 yrs.
Schwans - privately held, U.S. based.