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You are viewing an outdated report. The latest version of this report was published on October 1st, 2020


    
Certificate Authority Market Share Report
September 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.

CA August 2003
Count
August 2003
%
July 2003
Count
July 2003
%
Growth
%
Verisign62,49442.5259,59042.230.68
Thawte33,14522.5532,52823.05-2.18
Equifax (Geotrust)19,18613.0518,61513.19-1.05
Comodo Limited5,7883.945,2813.745.22
Snake Oil, Ltd2,1441.462,1211.50-2.96
SomeOrganization1,8471.261,7611.250.69
Entrust.net1,7081.161,6701.18-1.81
U.S. Government1,0600.729360.668.72
The USERTRUST Network5910.405840.41-2.85
IPS Certification Authority s.l.5120.355210.37-5.66
Plesk, Inc.5040.344630.334.50
Plesk Inc.4650.324540.32-1.67
Unknown3630.253230.237.89
FreeSSL3240.222880.208.00
TC TrustCenter for Security in Data Networks GmbH3140.213000.210.48
Equifax Secure Inc2520.172660.19-9.05
GlobalSign nv-sa2490.172340.172.16
Ipswitch,Inc.1930.131710.128.35
GTE Corporation1800.121680.122.86
Deutsche Telekom AG1470.101480.10-4.65
Thawte Certification1370.091300.091.17
ispgateway1080.071030.070.66
Kubota Systems Inc.1020.07740.0532.33
Advanced Extranet Server780.05780.06-4.00
Internet Widgits Pty Ltd770.05790.06-6.43
Digital Signature Trust Co.590.04580.04-2.34
PKI Partner AB540.04510.041.65
CETI530.04530.04-4.00
SOGO KEIBI HOSHO CO.LTD520.04460.038.52
NetLock Halozatbiztonsagi Kft.490.03390.0320.62
Baltimore Technologies Japan Co.,Ltd.480.03420.039.72
TAIWAN-CA.COM Inc.440.03400.035.60
CyberTrust Japan, Inc.440.03460.03-8.17
Ensim Corporation400.03390.03-1.54
Beocity400.03400.03-4.00
community musician390.03390.03-4.00
XYZ Corporation390.03330.0213.46
Unizeto Sp. z o.o.380.03350.024.23
Deutsches Forschungsnetz380.03380.03-4.00
University of Florida370.03370.03-4.00
Tele Danmark350.02290.0215.86
Positive Software350.02460.03-26.95
Webmin Software340.02340.02-4.00
WebMoney Transfer340.02340.02-4.00
NeoNova B.V.340.02350.02-6.74
SCNC320.02330.02-6.91
IceWarp Software320.02280.029.72
Franke & Partner290.02290.02-4.00
KICA270.02250.023.68
Your Organization250.02250.02-4.00
Stalker Software, Inc.250.02270.02-11.11
HJ.NET250.02230.024.35
Onyx Internet240.02240.02-4.00
University of Maryland230.02210.015.15
Advantagecom Networks, Inc.230.02230.02-4.00
OCC220.01140.0150.86
Massachusetts Institute of Technology220.01190.0111.16
KMD210.01180.0112.00
CNRS210.01130.0155.08
cv. Candi Internet200.01170.0112.94
Temp Certificate!200.01200.01-4.00
Sun Microsystems Inc200.01210.01-8.57
Rutgers University200.01200.01-4.00
ROOT200.01210.01-8.57
media3190.01180.011.34
Stargate.Net, Inc.190.01190.01-4.00
University of Helsinki180.01170.011.65
ICS_TREE180.01160.018.00
ICP-Brasil180.01160.018.00
DeZines Web Hosting180.01180.01-4.00
CsideNet180.0100.00N/A
Apache HTTP Server180.01140.0123.43
Technische Universitaet Chemnitz170.01170.01-4.00
NIH170.01180.01-9.33
HAL interactive, d.o.o.170.01170.01-4.00
Web Hosting160.01160.01-4.00
University of Waterloo160.0100.00N/A
PVT a.s.160.01140.019.72
Logacont AG160.01140.019.72
UUNET UK150.01150.01-4.00
UNESP150.01150.01-4.00
Sun Cobalt150.01140.012.86
ServeLinux Networks, Inc.150.01130.0110.77
Root CA150.0100.00N/A
Register4less150.01150.01-4.00
My Company Ltd150.01120.0120.00
INFN150.01140.012.86
FNMT150.01140.012.86
Carnegie Mellon University150.01150.01-4.00
BSG150.01170.01-15.29
Aaex Corp.150.01160.01-10.00
The Chinese University of Hong Kong140.0100.00N/A
Postecom s.p.a.140.01120.0112.00
Akamai140.0100.00N/A
kundenserver.de130.01110.0113.46
University of Wisconsin - Stevens Point (UWSP)130.0100.00N/A
Universitaet Karlsruhe130.0100.00N/A
UniCERT Brasil130.01130.01-4.00
ORACLE DEMO CA130.0100.00N/A
MULTICERT-CA130.01140.01-10.86

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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