This list was compiled by me for the purpose of my Cryptography and Network Security Assignment. So, here's the list.
1) Symantec Corporation
Consists of VeriSign, GeoTrust & Thawte. Symantec has the maximum market share in
Certificate issuing. Along with being a root CA it has other products in the area of Network
Security. For normal users it has the Norton Antivirus and Internet security. It has specialised
products for Small and Medium Industries as well as for Large businesses. Symantec is what
it is today because of a lot of acquisitions and partnerships with some of the best known
companies in Network Security domain.
2) Comodo Group, Inc.
Comodo is a privately held group of companies providing computer software and SSL digital
certificates. The Comodo companies offer many free products through their website,
available for public download. Comodo also offers many business products. Most notable of
these being : Comodo Backup, Comodo SSL, Secure Email Pro, Comodo SSL Certificates
3) Go Daddy Group Inc.
Go Daddy is a privately held company that is primarily an internet domain registrar and web
hosting company. Along with this go daddy also provides Website Management & Security.
This involves SSL certificates, Website Security Scanner and Code signing certificates.
GlobalSign is a WebTrust certified certificate authority. It also provides products for Mobile
Authentication, Cloud Security, Secure e commerce and Document Security.
5) Entrust Inc.
provides identity-based security software and services in the areas of public key
infrastructure (PKI), multifactor authentication, Secure Socket Layer certificates, fraud
detection, digital certificates and mobile authentication.
is a company based Israel that has three main activities: StartCom Linux Enterprise (Linux
distribution), StartSSL (Certificate Authority) and MediaHost (Web hosting). StartCom
offers the free (for personal use) Class 1 X.509 SSL certificate "StartSSL Free", which works
for webservers (SSL/TLS) as well as for E-mail encryption (S/MIME). It also offers Class 2
and 3 certificates as well as Extended Validation Certificates.
was a security services company formed as a result of a merger of
the TruSecure and Betrusted security companies. Cybertrust acquired a large stake in Ubizen,
a European security services firm based in Belgium to become one of the largest information
security firms in the world. CyberTrust is now owned by Verizon.
8) DigiCert Inc
is a privately held, US based X.509 SSL certificate provider. As a trusted third party,
DigiCert verifies the authenticity of secure websites on behalf of a web browser for the
purpose of preventing online phishing scams. DigiCert was a founding member of
the CA/Browser Forum, DigiCert assisted in the development of the Extended Validation
Certificate. DigiCert also worked in conjunction with Microsoft to develop and promote the
use of subject alternate names in SSL certificates, for use with Microsoft Exchange Server
9) SECOM Co., Ltd.
is the largest security company in Japan. It has several products like Secom Information
Security, Secom Certifying Agency among others.