Best place to sell my iPhone?

I want to sell my iPhone 5S and want some recommendations on where I should sell it and no I don't want to use eBay or Craigslist so please don't tell me to use them. I don't want to sell to a individual, I want to sell it to a company.

Honestly, I think https://www.upgradeswap.com is the best site because they always seem to pay more than the other big names out there. Their customer service is really good too. If you compare what you'll get for your 5S to Gazelle for example, you'll see that UpgradeSwap consistently pays more.

They offer a way to get paid instantly too.

Hope that helps.

EBay

Best luck.
http://www.gazelle.com/new

http://www.usell.com/

Upgrade Swap… More money, faster payment.