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.
LeadBot by Drift - Qualify leads on your website without forms or humans
MTcaptcha - Enterprise Captcha solutions
Google Analytics Lead Generator - Instantly get free leads from Google Analytics
GeeTest CAPTCHA - GeeTest protects your websites, mobile Apps and APIs from bot threats.
Sniply - Sniply is a content marketing tool providing social media conversion.