reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
Gigstarter - Gigstarter uses crowd funding to take the pain from arranging events.
hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
Hop - Spike makes working easier and more efficient. Saving you and your team time, sanity, and a lot of headaches.
scr.im - Don't share your email on public sites.
Floship - Floship is an international e-commerce order fulfillment, crowdfunding campaign, and shipping service.