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.
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
MTcaptcha - Enterprise Captcha solutions
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
GeeTest CAPTCHA - GeeTest protects your websites, mobile Apps and APIs from bot threats.
Marketo - Marketo's powerful marketing automation software helps marketers master the art & science of digital marketing to engage customers and prospects.