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.
MetaSurvey - MetaSurvey provides light and high engagement surveys for e-commerce.
SurveyJS - Feature rich and open source surveys for embedding into websites.
OpenStartup.dev - A collection of open startups
Votee - Easy, reliable, and cost effective market research
Waves Insights - Consumer Insights SDK for Messaging Platforms