List of Certification Authorities

• Comodo
• IdenTrust
• Symantec
• GoDaddyGlobalSign (https://www.globalsign.com
• DigiCert (https://www.digicert.com
• Certum (http://www.certum.eu
• Entrust (https://www.entrustdatacard.com
• StartCom (https://www.startcomca.com
• thwate (https://www.thawte.com
• Verisign (https://www.verisign.com
• RapidSSL (https://www.rapidssl.com
• Escrow (https://www.escrow.com

Among the most popular there is Comodo, IdenTrust, Symantec and GoDaddy.