Some of the biggest names (and pocketbooks) in the food industry are campaigning against genetically modifed organism labeling, but they’re not the only ones putting up a fight. These 10 corporations believe that customers have a right to know if they’re consuming GMOs. In this year's midterm elections, voters in two states have the chance to enact legislation that would increase transparency: If passed, Colorado's Proposition 105 and Oregon's Measure 92 would both require GMO labeling for food and beverage products sold in those states.

Just as consumers know how many calories they are consuming, companies that support GMO labeling argue that they have the right to know what's in their food and drink. Although the science does not support the contention that ingredients such as genetically modified corn or soy pose a health risk, there are other concerns—over pesticide use and the corporate control of seeds—bolstering the pro-labeling argument.

Similar ballot measures in California and Washington state have failed, but the legislature in Vermont passed the first stand-alone labeling law earlier this year.

Here are 10 companies that have donated money toward the pro-labeling campaigns in Colorado and Oregon.