For no reason in particular, here’s the first result for every letter of the alphabet:
A couple notes: For a few letters, c and e for example, Google actually returns some math before the result, I left these out. For F, Google actually returns its own Google Finance listing for Ford (with chart) before the first result. For k it returns the Google Finance listing for Kellogs before the Wikipedia link to the letter (same for q, though that one is for Qwest and v for Visa). I think the most impressive branding jobs are probably e for E!, i for iTunes, o for Oprah, t for the Boston train and v for an ABC show that doesn’t even exist yet.