Sectigo (past Comodo) is the world's number 1 commercial CA, with over 100,000,000 digital certificates issued in over 150 countries. The vendor provides different validation levels, warranties and additional features.
GeoTrust is one of the most trusted web security brands in the world. With a laser-sharp focus on business-class encryption solutions, GeoTrust is an ideal fit for any company or organization looking to secure its websites while staying within its budget.
Thawte has been building an unrivaled reputation of trust and reliability for over 17 years by being the first Certificate Authority to sell SSL certificates internationally and by remaining exclusively-focused on digital certificates to continue helping businesses gain an edge in consumer confidence. Best choice for developers.