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.
SurveyJS - Feature rich and open source surveys for embedding into websites.
Survey Analytics - Enterprise customer research platform
Survey Anyplace - Easy & Attractive Mobile surveys. Survey Anyplace enables anybody to create a mobile survey for tablets and smartphones. No app install. All devices.
LimeSurvey - LimeSurvey: the Online-Umfrage Tool - Open-Source Suryeys
Invision - Prototyping and collaboration for design teams