What companies use child labor?

I keep reading stuff like "half way around the world children are uneducated and malnourished but work long hours sewing soccer and other things Americans like to buy" WHAT?!? That's awful! I can't imagine wasting my childhood and education doing things that machines or low-paid adults should be doing! I want to do something about it but the part where it says " things that westerners like to buy" i am just curious; What companies do this? I'm not going to buy things from there anymore.