UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!
Basil Chat - Design feedback via chat
Userbrain - Easy, fast, and affordable user testing for websites and prototypes.
Plerdy - Plerdy is a comprehensive conversation rate optimization software that caters to professional online marketers and agencies, allow them to enhance website performance and increase revenue greatly.
UserBob - Provides affordable remote user testing.
Loops Feedback - Feedback on design ideas in minutes via 110m+ people