Giant is the largest manufacturer of bikes in the world.  Making everything from Pro Tour road bikes and World Cup Mountain bikes to kid's bikes and cruisers, Giant brings an incredible bike to the masses (and usually at an incredible price).  In their words: "

It’s true that Giant is the world’s largest producer of high-quality bikes, but we never forget where we came from. We started small. And we were founded on the idea that the best way to inspire passion for cycling is to create the best products, and make them accessible to all riders. That’s what we did back then. That’s what we do today."