Crowdfunding platforms in USA
From sources across the web

en.wikipedia.org
Indiegogo

www.kickstarter.com
Kickstarter

zh.wikipedia.org
GoFundMe

commons.wikimedia.org
Patreon
Fundable LLC

mobile.twitter.com
SeedInvest

commons.wikimedia.org
Wefunder
Fundable

www.equidam.com
Crowdcube

fundrazr.com
FundRazr

en.wikipedia.org
Fundly

www.science2society.eu
RocketHub

theveganreview.com
Seedrs

en.wikipedia.org
Crowdrise

microventures.com
MicroVentures

circleup.com
CircleUp

experiment.com
Experiment

en.wikipedia.org
Funding Circle
Gogetfunding

www.prnewswire.com
Classy

commons.wikimedia.org
Crowd Supply
Startsomegood

blog.mightycause.com
Mightycause

www.ulule.com
Ulule