Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Survey Analytics - Enterprise customer research platform
Google Forms - Simple web forms from Google.
Survey Anyplace - Easy & Attractive Mobile surveys. Survey Anyplace enables anybody to create a mobile survey for tablets and smartphones. No app install. All devices.
Zoho Survey - Capture feedback and turn it into actionable insight.
SurveyJS - Feature rich and open source surveys for embedding into websites.