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You are viewing an outdated report. The latest version of this report was published on April 1st, 2024


    
Certificate Authority Market Share Report
January 1st, 2003

Report Description
This report, much like our original certs and CAs report, focuses on issuers of SSL enabling certificates found on web servers. Unlike our original report, however, this report has a couple of key differences to it:

  • Reports on top 100 CAs. The original report only paid attention to the major CAs at the time the report was produced. This report lists the top 100 CAs for the month. You will find here many self-signing organizations such as universities, telecommunications firms, etc.
  • Uses issuer name as identifier. Our original report only counted a certificate towards an organization if we were able to prove, by virtue of verifying the key, that the organization in question actually signed the certificate. This had a notable problem with it - we don't always have the public key of the CA. In at least one case, a CA doesn't make their public key available unless you sign a license agreement.

    This report doesn't have that problem, since it only uses the issuer Organization Name to uniquely identify the issuing CA.

media3 CA Certificate Historical Market Share Graph

CA December 2002
Count
December 2002
%
November 2002
Count
November 2002
%
Growth
%
Verisign40,15338.7139,59638.91-0.53
Thawte30,56529.4630,10429.58-0.41
Equifax (Geotrust)8,7488.438,2098.074.53
Equifax Secure Inc4,9314.755,2065.12-7.09
Unknown2,2812.202,1882.152.26
Snake Oil, Ltd1,8301.761,8111.78-0.88
SomeOrganization1,1301.091,1311.11-2.00
Entrust.net1,0331.001,0181.00-0.46
U.S. Government7740.757400.732.60
Comodo Limited7340.716000.5920.00
Plesk Inc.6240.606230.61-1.75
TC TrustCenter for Security in Data Networks GmbH2050.201960.192.59
The USERTRUST Network1880.181670.1610.43
GlobalSign nv-sa1350.131260.125.10
Internet Widgits Pty Ltd1210.121240.12-4.28
GTE Corporation1100.111130.11-4.51
Thawte Certification1090.111030.103.80
Ipswitch,Inc.1000.10870.0912.75
Deutsche Telekom AG920.09920.09-1.91
Kubota Systems Inc.880.08840.082.76
Advanced Extranet Server800.08800.08-1.91
Plesk, Inc.680.07660.061.06
ispgateway650.06620.062.84
*.ceti.pl590.06590.06-1.91
CyberTrust Japan, Inc.510.05480.054.22
Esat Net500.05490.050.09
Ensim Corporation480.05460.052.36
zNET Internet Services380.04380.04-1.91
PKI Partner AB360.03340.033.86
Ring d.o.o.350.03340.030.98
NeoNova B.V.350.03340.030.98
University of Florida330.03340.03-4.79
TAIWAN-CA.COM Inc.330.03340.03-4.79
SCNC330.03320.031.16
Webmin Software290.03280.031.59
Franke & Partner290.03290.03-1.91
Beocity290.03250.0213.78
media3270.03320.03-17.24
Onyx Internet270.03260.031.86
BSG250.02270.03-9.18
HJ.NET240.02280.03-15.92
Advantagecom Networks, Inc.220.02230.02-6.17
Massachusetts Institute of Technology210.02220.02-6.37
Indra's Net, Inc.210.02210.02-1.91
FreeSSL210.02130.0158.45
Tele Danmark200.02200.02-1.91
Stargate.Net, Inc.200.02200.02-1.91
Stalker Software, Inc.200.02190.023.25
DeZines Web Hosting200.02200.02-1.91
Web Hosting190.02190.02-1.91
University of Maryland190.02180.023.54
NetLock Halozatbiztonsagi Kft.190.02180.023.54
Idonex AB190.02200.02-6.81
Your Organization180.02220.02-19.74
WebMoney Transfer180.02230.02-23.23
Logacont AG180.02190.02-7.07
IceWarp Software180.02150.0117.71
HAL interactive, d.o.o.180.02180.02-1.91
XAO Inc.170.02160.024.22
Unizeto Sp. z o.o.170.02200.02-16.62
NIH170.02170.02-1.91
KICA170.02150.0111.17
UUNET UK160.02210.02-25.26
Linux Test Server160.02160.02-1.91
Carnegie Mellon University160.02120.0130.79
University of Helsinki150.01150.01-1.91
Sun Microsystems Inc150.01140.015.10
IPS Seguridad CA150.01150.01-1.91
Technische Universitaet Chemnitz140.01140.01-1.91
SOGO KEIBI HOSHO CO.LTD140.01130.015.64
PVT a.s.140.01140.01-1.91
Radio Data Group Inc130.0100.00N/A
USMC120.01120.01-1.91
Superb Internet Corp.120.01120.01-1.91
International Business Machines Corporation120.01110.017.01
INFN120.0100.00N/A
DeZines Web Hosting Corporation120.01120.01-1.91
XYZ Corporation110.01100.017.90
University of Wisconsin - Stevens Point (UWSP)110.01110.01-1.91
Kasetsart University110.01110.01-1.91
KMD110.0100.00N/A
IPrimus USA110.01110.01-1.91
Estore Corp110.01110.01-1.91
comDesign100.0190.018.99
University of Waterloo100.01100.01-1.91
Logical Net Corp100.0190.018.99
Inter Clear Service Ltd100.01100.01-1.91
CNRS100.01110.01-10.83
Uppsala universitet90.0190.01-1.91
Tampere University of Technology90.0190.01-1.91
Swiss-Web GmbH90.0190.01-1.91
ServeLinux Networks, Inc.90.0100.00N/A
Nebraska On-Ramp90.01110.01-19.74
Internet Gold90.0100.00N/A
Frank's Radio90.0100.00N/A
Etisalat90.0100.00N/A
Associazione Investici90.0190.01-1.91
Apache HTTP Server90.0190.01-1.91
A&S Systemtechnik90.0190.01-1.91
ViaPVT a.s.80.0180.01-1.91

Note: Readers are cautioned that the Growth percentages are based on a CA's market share penetration rather than the absolute number of certificates we detected. Thus, it is possible for the number of certificates to increase, while the growth is actually a negative value.



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