Sherwin-Williams Co., PPG Industries, Inc.; Grow Group, Valspar Corp., Glidden Co. (a subsidiary of Great Britain's ICI Paints), and Benjamin Moore and Co. are the biggest.
I would say Anheuser-Busch InBev NV. (You may know it by it's old name Interbrew) It's even the largest brewery in the world.
Toyota company produced the most cars in the world. Second is GM or Volkswagen but not sure.
Their primary business, as said in the name, is producing automobile tires and related rubber goods.
I would probably say that Hershey's makes the most money for Halloween candy.