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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
August 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 doesn't verify the signatures of the certificates it finds, it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA July 2003
Count
July 2003
%
June 2003
Count
June 2003
%
Growth
%
Verisign59,59042.2349,37542.96-1.70
Thawte32,52823.0527,88524.26-4.99
Equifax (Geotrust)18,61513.1916,12814.03-5.99
Comodo Limited5,2813.743,3822.9427.19
Snake Oil, Ltd2,1211.501,8601.62-7.12
SomeOrganization1,7611.251,3261.158.17
Entrust.net1,6701.186370.55113.54
U.S. Government9360.668430.73-9.56
The USERTRUST Network5840.414530.395.01
IPS Certification Authority s.l.5210.3700.00N/A
Plesk, Inc.4630.333150.2719.72
Plesk Inc.4540.324430.39-16.53
Unknown3230.232280.2015.39
TC TrustCenter for Security in Data Networks GmbH3000.212360.213.54
FreeSSL2880.201500.1356.39
Equifax Secure Inc2660.192600.23-16.67
GlobalSign nv-sa2340.171760.158.29
Ipswitch,Inc.1710.121300.117.14
GTE Corporation1680.121250.119.47
Deutsche Telekom AG1480.101220.11-1.19
Thawte Certification1300.091170.10-9.50
ispgateway1030.07920.08-8.81
Internet Widgits Pty Ltd790.06610.055.49
Advanced Extranet Server780.06720.06-11.76
Kubota Systems Inc.740.05920.08-34.48
Digital Signature Trust Co.580.0400.00N/A
CETI530.0400.00N/A
PKI Partner AB510.04430.04-3.39
SOGO KEIBI HOSHO CO.LTD460.03290.0329.20
Positive Software460.03360.034.08
CyberTrust Japan, Inc.460.03290.0329.20
Baltimore Technologies Japan Co.,Ltd.420.03250.0236.84
TAIWAN-CA.COM Inc.400.03220.0248.09
Beocity400.03380.03-14.26
community musician390.03390.03-18.55
NetLock Halozatbiztonsagi Kft.390.03350.03-9.24
Ensim Corporation390.03360.03-11.76
Deutsches Forschungsnetz380.0300.00N/A
University of Florida370.03340.03-11.36
Unizeto Sp. z o.o.350.02240.0218.78
NeoNova B.V.350.02210.0235.75
Webmin Software340.02300.03-7.69
WebMoney Transfer340.02110.01151.76
XYZ Corporation330.02300.03-10.40
SCNC330.02310.03-13.29
Tele Danmark290.02260.02-9.15
Franke & Partner290.02290.03-18.55
IceWarp Software280.02190.0220.03
Stalker Software, Inc.270.02160.0137.45
Cologroup260.0200.00N/A
Your Organization250.02150.0135.75
KICA250.02200.021.81
Onyx Internet240.02190.022.89
HJ.NET230.0200.00N/A
Advantagecom Networks, Inc.230.02220.02-14.85
University of Maryland210.01210.02-18.55
Sun Microsystems Inc210.01180.02-4.97
ROOT210.01210.02-18.55
Temp Certificate!200.01190.02-14.26
Rutgers University200.0100.00N/A
Stargate.Net, Inc.190.01170.01-8.97
Massachusetts Institute of Technology190.01190.02-18.55
media3180.01250.02-41.35
NIH180.01150.01-2.26
KMD180.01110.0133.28
DeZines Web Hosting180.01190.02-22.84
cv. Candi Internet170.0100.00N/A
University of Helsinki170.01150.01-7.69
Technische Universitaet Chemnitz170.01130.016.51
HAL interactive, d.o.o.170.01170.01-18.55
BSG170.01170.01-18.55
Web Hosting160.01160.01-18.55
ICS_TREE160.01120.018.60
ICP-Brasil160.01110.0118.48
Aaex Corp.160.0100.00N/A
UUNET UK150.01150.01-18.55
UNESP150.0100.00N/A
Register4less150.01130.01-6.02
Carnegie Mellon University150.01140.01-12.73
Sun Cobalt140.01130.01-12.28
PVT a.s.140.0190.0126.70
OCC140.01170.01-32.92
MULTICERT-CA140.0100.00N/A
Logacont AG140.01140.01-18.55
Linux Test Server140.0100.00N/A
INFN140.01100.0114.03
HDE140.01140.01-18.55
FNMT140.01130.01-12.28
Apache HTTP Server140.01160.01-28.73
UniCERT Brasil130.0100.00N/A
ServeLinux Networks, Inc.130.01100.015.89
CNRS130.01170.01-37.71
zNET Internet Services120.01110.01-11.14
XX120.0190.018.60
University of Bristol120.0100.00N/A
Radio Data Group Inc120.0100.00N/A
Postecom s.p.a.120.01120.01-18.55
My Company Ltd120.0100.00N/A
Etisalat120.01110.01-11.14
kundenserver.de110.0100.00N/A

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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