Flyp.me - Flyp.me the instant accountless exchange. No registration. Private & Secure.
Poloniex - US-based cryptocurrency exchange with maximum security
SwapSpace - SwapSpace is a cryptocurrency aggregator exchanger.
ShapeShift - Buy cryptocurrency instantly without the need of an account.
ALFAcashier - ALFAcashier.com was founded in May 2012 as an electronic currency exchange service.
Godex - All key features in one cryptocurrency exchange.