CertDB

Top issuers

The most active issuers of SSL certificates in the world. Full list of issuers, actual counts of signed certificates.

# Issuer Certificate count
801 PARIS 182
802 Forschungszentrum Juelich GmbH 182
803 Verimatrix 182
804 Nokia 182
805 LG-NAS 181
806 Secteur public developpement durable 180
807 Citadel Server 180
808 Young 180
809 Prive 180
810 07086 180
811 12VPN Personal US 179
812 Universitaet Mannheim 179
813 cn 179
814 LTD 179
815 Tenable Network Security, Inc. 179
816 SomeCity 178
817 NDM Systems 177
818 Vas-Hosting.cz 177
819 Hochschule fuer Technik und Wirtschaft Berlin 177
820 Intersect Australia 177
821 Alert Logic 176
822 Internet 176
823 Maison 176
824 Universitaet Rostock 176
825 Technische Universitaet Hamburg-Harburg 174
826 Mirapoint, Inc. 173
827 Asentria 173
828 The seedbox Company 172
829 RuggedCom.com 172
830 sundray 172
831 ABC 171
832 Promise Technology Inc. 171
833 Schule 170
834 Oce 170
835 Coova.org 170
836 "PositiveSoftwareCorporation" 169
837 NetLock Halozatbiztonsagi Kft. 169
838 ASoft ltd. 169
839 Thecus Technology Corp. 168
840 StartCom CA 168
841 Hochschule Mittweida (FH) - University of Applied Sciences 168
842 National Informatics Centre 167
843 Land Niedersachsen 167
844 Cloud 167
845 KICA 167
846 keine 167
847 Porticor Cloud Security 167
848 local 167
849 Intesa Sanpaolo S.p.A. 167
850 Alt-F 166
851 ICS_TREE 166
852 MAIRIE 166
853 Candelis Inc. 166
854 Ultraseedbox.com 166
855 Some-organisation 166
856 TCS 166
857 Universitaet Kiel 165
858 Syrex Intranets SICS 165
859 UUDynamics USA,Inc. 165
860 Universitaet Osnabrueck 165
861 JAPAN TELECOM CO., LTD. 163
862 YMIRLINK Inc. 163
863 Heinrich-Heine-Universitaet Duesseldorf 162
864 Colt Engine 160
865 System Identity 159
866 Blue Box Group 159
867 km 158
868 TDC 158
869 state-institutions 158
870 Sipura Technology, Inc. 158
871 Nethost CA 157
872 NCTU 157
873 CASA 157
874 MATRIX COMSEC PVT. LTD. 156
875 Technische Universitaet Ilmenau 156
876 HJ 155
877 Stanford University 154
878 MICHELIN 154
879 Fachhochschule Giessen-Friedberg 153
880 Verizon 153
881 Example Org 153
882 British Airways plc 153
883 Freistaat Sachsen 153
884 SAS Institute Inc. 153
885 Ericsson 152
886 Heidelberger Druckmaschinen AG 152
887 Compaq 152
888 arkOS Servers 152
889 T-Mobile 152
890 Sony Computer Entertainment Inc. 151
891 Sangoma 151
892 Control4 150
893 Acano Ltd 150
894 getaCert - www.getacert.com 150
895 CSL Computer Service Langenbach GmbH 150
896 Otto-von-Guericke-Universitaet Magdeburg 150
897 Entensys Corp. 149
898 Net-Inter-Net 149
899 My Large Organization Name 149
900 Yahoo 149
901 Intelerad Medical Systems, Inc. 148
902 VSHosting s.r.o. 148
903 Schweitzer Engineering Laboratories, Inc. 148
904 E-Tuğra EBG Bilişim Teknolojileri ve Hizmetleri A.Ş. 148
905 Micros Systems, Inc. 148
906 GLAXOSMITHKLINE UK LTD 147
907 2N Telecommunications 147
908 The Bunker Secure Hosting Ltd. 146
909 ELKO 146
910 EFI 146
911 MST 146
912 Red Lion Controls, Inc 146
913 Maipu Communication Technology., Ltd. 146
914 Universitaet Oldenburg 145
915 Thuis 145
916 Mimosa Networks, Inc 145
917 145
918 GlaxoSmithKline 144
919 Alcatel 144
920 Numara Software 143
921 Celerra Certificate Authority 143
922 Zone Media 143
923 Solinus, Inc 143
924 jeedom 143
925 Stonesoft 143
926 Siemens Subscriber Networks 142
927 Assisted Support 142
928 SmartSight Networks Inc. 142
929 office 142
930 Universitaet Bayreuth 142
931 MTI Ltd 141
932 Groupe LINAGORA 141
933 aerofs.com 141
934 MINEFI 141
935 Weatherford International 141
936 semantico 141
937 Netika 141
938 STRATO AG 141
939 eSoft, Inc. 141
940 Stunnel Developers 140
941 AS 140
942 The Company 139
943 University of Michigan 139
944 Tenon Intersystems 139
945 Caisse Nationale des Caisses dEpargne et de Prevoyance 139
946 Universitaet Siegen 139
947 WatchMouse 138
948 SEH 138
949 FR 138
950 Awesome Inc 137
951 Bright Computing, Inc. 137
952 Nexus iSR 137
953 CAE 136
954 Compellent Technologies 136
955 OneMedNet 136
956 GeniNetworks 136
957 BPS 136
958 LBS Westdeutsche Landesbausparkasse 135
959 Universitaet Giessen 135
960 VNX Certificate Authority 135
961 HOMESERVER 134
962 Websense, Inc. 134
963 MyOrg 134
964 ipacct.com 133
965 American Power Conversion 133
966 Family 133
967 Otto-Friedrich-Universitaet Bamberg 132
968 Universitaet Kassel 132
969 CONCEPTRONIC 132
970 University of Toronto 132
971 Domotica Labs 131
972 Trustis Limited 131
973 bitOS 131
974 IPdiva Root 131
975 Secure-Netz 130
976 Panasonic Corporation 130
977 thereNow 130
978 Aruba Networks 129
979 Fachhochschule Luebeck 129
980 RG Nets 129
981 ContentKeeper Technologies 129
982 Thales 128
983 FernUniversitaet in Hagen 128
984 Duruan 128
985 BitLeap, LLC 128
986 agentschap Centraal Informatiepunt Beroepen Gezondheidszorg 128
987 Homenet 128
988 Agilex 128
989 Dell Computers Corporation 128
990 Zenon N.S.P. 128
991 survnet.national 128
992 Johannes Gutenberg-Universitaet Mainz 128
993 Certipost s.a./n.v. 128
994 LH.pl Sp. z o.o. 127
995 default 127
996 AA 127
997 GEHRHSD 127
998 Frogtrade 127
999 ITS 127
1000 PRIV 127