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
1001 GEHRHSD 127
1002 Generalitat Valenciana 126
1003 Aaron's Certificate Authority 126
1004 CPoint Corporation 126
1005 IdenTrust LLC. 125
1006 Redwood Software Nederland BV 125
1007 FortiVoice 125
1008 ScienceLogic, Inc. 124
1009 2Wire Inc 123
1010 SAIC 123
1011 UNICAMP 123
1012 user-PC 123
1013 Farmington Municipal Schools 123
1014 france telecom 122
1015 Lloyds TSB Bank plc 122
1016 Non-Governmental 122
1017 Allianz Group 121
1018 Purdue University 121
1019 Internap Network Services Corporation 121
1020 Packet Design 121
1021 digitalSTROM.org 121
1022 Westermo Teleindustri AB 121
1023 ROOT 121
1024 Bibliotheksservice-Zentrum Baden-Wuerttemberg 120
1025 Unilever 120
1026 Gouv 120
1027 HKUST 120
1028 ANCE 120
1029 Cooper Industries 120
1030 University of Oslo 120
1031 VoloAccess VA125 120
1032 GAD EG 120
1033 Leadsec Ltd. 120
1034 HTTPS Management Certificate for ADTRAN (self-signed) 120
1035 Nimsoft 120
1036 CNNIC SSL 119
1037 Hochschule Heilbronn 119
1038 Noction 119
1039 Serveradmin.pl s.c. 118
1040 Actalis S.p.A. 118
1041 Kubota Systems Inc. 118
1042 Unipay Root CA 118
1043 Some Organization 117
1044 Noname 116
1045 Flynn 116
1046 Ubersmith 116
1047 IceWarp Limited 116
1048 Synology 115
1049 Imprivata 115
1050 Prvni certifikacni autorita a.s. 115
1051 Universitaet Marburg 115
1052 WEB 115
1053 KPN 115
1054 zzz 114
1055 Dovecot mail server 114
1056 YunoHost 114
1057 NEC Corporation 113
1058 undefined organisation 113
1059 TC TrustCenter for Security in Data Networks GmbH 113
1060 Türkiye Bilimsel ve Teknolojik Araştırma Kurumu - TÜBİTAK 113
1061 T-Systems 113
1062 gocept gmbh & co. kg 113
1063 VISA 113
1064 Fachhochschule Koeln 113
1065 University of Leicester 113
1066 Se.Co.Ges. 112
1067 XXX 112
1068 Acme Co 112
1069 Martin-Luther-Universitaet Halle-Wittenberg 112
1070 Fcovoip 112
1071 Funkwerk IP Appliances GmbH 111
1072 RETIRED 111
1073 TrendMicro 111
1074 Guoheng United Ltd. 111
1075 NGO 110
1076 Firmaprofesional S.A. 110
1077 Camera di Commercio 110
1078 CIRCUTOR S.A. 110
1079 Pantheon Systems, Inc. 109
1080 Hochschule Osnabrueck 109
1081 IND Consulting 109
1082 AudioCodes 109
1083 Die Schweizerische Post 109
1084 BIT 109
1085 .masterhost 109
1086 Fuji Xerox 108
1087 CSC 108
1088 Moxa Networking Co., Ltd. 108
1089 Massachusetts Institute of Technology 108
1090 General Mills 108
1091 Deutscher Bundestag 108
1092 Apache Software Foundation 107
1093 vps.server.com 107
1094 Bosch Security Systems Pte Ltd 107
1095 Some Company, Inc. 107
1096 BlowUp Imaging 106
1097 Emerson Process Management 106
1098 your organisation 106
1099 Axentraserver Default Certificate 863B4AB 106
1100 MULTICERT-CA 106
1101 W-ibeda High Tech 106
1102 SofaWare 106
1103 NTT 106
1104 Swisscom IT Services AG 106
1105 HK 106
1106 dockergenerated 106
1107 Intuit 105
1108 Osvaldo Fantini & Cía. SRL 105
1109 S2 Security Corporation CA 105
1110 IT Watchdogs, Inc. 105
1111 There Corporation 105
1112 "Mobile Payment Systems LLC" 104
1113 NAMCO BANDAI Games Inc. 104
1114 Yamato System Development Co., Ltd. 104
1115 IdenTrust Inc. 103
1116 MasterCard Worldwide 103
1117 Universitaet Greifswald 103
1118 University of Minnesota 103
1119 VIVOTEK Inc. 103
1120 The BOX4SEED Company 102
1121 Posto Pinheiro 102
1122 NI Consulting Co.,LTD 102
1123 StarLeaf 102
1124 TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Kasım 2005 101
1125 Avira GmbH 101
1126 Intradyn 101
1127 HotLink Corp 101
1128 CA Technologies, Inc. 101
1129 Lumeta Corporation 101
1130 QCM, s.r.o. 100
1131 THINline interactive s.r.o. 100
1132 Coop 100
1133 Calaos 100
1134 TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. 100
1135 ESG de Electronische Signatuur B.V. 100
1136 Forget About IT Ltd. 100
1137 BIGLOBE Inc. 99
1138 80 Code Consulting LLC 99
1139 National Instruments 99
1140 MultiMed 99
1141 Zentera Systems Inc 99
1142 SNCF 99
1143 MyHome 99
1144 Digital Cheetah 99
1145 CFCA Operation CA2 99
1146 Nessus Users United 99
1147 unset 99
1148 Anchor Systems Pty Ltd 98
1149 arvato systems GmbH 98
1150 Matrix 98
1151 Familie 97
1152 North Carolina State University 97
1153 Salt Stack 97
1154 SchoolAdmin 97
1155 LAB 97
1156 Citypassenger 97
1157 trgergfg 97
1158 OPENLANE, Inc. 97
1159 SHECA 97
1160 Mchost 97
1161 Yealink Network Technology Co.,Ltd. 97
1162 ARUMOVISTAR 97
1163 ITSO 96
1164 VoloAccess VA122V 96
1165 1 96
1166 HLCSD 96
1167 RBC 96
1168 AT&T 96
1169 NBox Inc 96
1170 Blue Coat SG8100 Series 96
1171 Bundesanstalt fuer Landwirtschaft und Ernaehrung (BLE) 96
1172 Bergische Universitaet Wuppertal 96
1173 Kibana 95
1174 FIREEYE 95
1175 GTE Corporation 95
1176 INFORMATION REQUESTED PER BEST E 95
1177 Aleric Technology Inc 95
1178 No Company 95
1179 PaperG 94
1180 POP.PL 94
1181 ADP 94
1182 TOTAL 94
1183 Debian 94
1184 TipSec Inc. 94
1185 Juniper Networks 94
1186 NetentSec 94
1187 Soft Logic 93
1188 AirTight Networks 93
1189 iii 93
1190 InsideSales.com 93
1191 Comcast 93
1192 Place Holder 93
1193 Inera AB 93
1194 captif 93
1195 Samsung Electronics 92
1196 Department of Education and Training 92
1197 Sonus Networks Corporation 92
1198 LG 92
1199 FancyFon 92
1200 EPM Inc. 92