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You are viewing an outdated report. The latest version of this report was published on January 1st, 2021


    
Certificate Authority Market Share Report
November 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 October 2003
Count
October 2003
%
September 2003
Count
September 2003
%
Growth
%
Verisign67,12442.3464,98942.47-0.30
Thawte33,70621.2633,27521.74-2.22
Equifax (Geotrust)21,26113.4120,26213.241.29
Comodo Limited7,4114.676,6664.367.32
Snake Oil, Ltd2,1811.382,1781.42-3.34
SomeOrganization2,0461.291,9811.29-0.30
Entrust.net1,8641.181,7991.180.02
U.S. Government1,1680.741,1000.722.50
The USERTRUST Network6410.406130.400.94
Plesk, Inc.5790.375360.354.27
IPS Certification Authority s.l.5320.345380.35-4.55
Unknown5240.334740.316.71
FreeSSL4580.294140.276.79
Plesk Inc.4440.284620.30-7.23
TC TrustCenter for Security in Data Networks GmbH3780.243360.228.60
GlobalSign nv-sa2770.172710.18-1.33
Ipswitch,Inc.2240.141930.1312.04
Equifax Secure Inc2140.132280.15-9.40
GTE Corporation1950.121840.122.30
Deutsche Telekom AG1860.121520.1018.12
Thawte Certification1460.091410.09-0.05
ispgateway1150.071130.07-1.76
Kubota Systems Inc.1010.061000.07-2.50
Advanced Extranet Server890.06840.052.28
Baltimore Technologies Japan Co.,Ltd.870.05630.0433.30
Digital Signature Trust Co.710.04620.0410.54
Internet Widgits Pty Ltd700.04720.05-6.15
SWsoft, Inc.590.04270.02110.94
NetLock Halozatbiztonsagi Kft.570.04550.040.04
CETI520.03500.030.39
SOGO KEIBI HOSHO CO.LTD470.03480.03-5.48
XYZ Corporation460.03390.0313.86
PKI Partner AB460.03550.04-19.27
Positive Software430.03400.033.77
IceWarp Software430.03380.029.23
TAIWAN-CA.COM Inc.420.03440.03-7.86
Webmin Software410.03390.031.48
Beocity400.03400.03-3.47
community musician390.02390.03-3.47
Unizeto Sp. z o.o.390.02350.027.56
University of Florida370.02370.02-3.47
Tele Danmark360.02360.02-3.47
SCNC360.02350.02-0.71
WebMoney Transfer350.02350.02-3.47
Deutsches Forschungsnetz350.02360.02-6.15
NeoNova B.V.340.02350.02-6.23
Ensim Corporation330.02390.03-18.32
Stalker Software, Inc.290.02270.023.68
KICA290.02290.02-3.47
Front Range Internet, Inc.290.0200.00N/A
Franke & Partner290.02290.02-3.47
Your Organization280.02270.020.11
cv. Candi Internet250.02220.019.69
University of Maryland250.02240.020.55
Root CA250.02210.0114.92
OCC250.02230.024.92
Massachusetts Institute of Technology250.02260.02-7.18
CNRS250.02230.024.92
ICS_TREE240.02230.020.73
HJ.NET240.02250.02-7.33
Temp Certificate!220.01220.01-3.47
Sun Microsystems Inc210.01210.01-3.47
ROOT210.01200.011.36
CsideNet210.01180.0112.62
Advantagecom Networks, Inc.210.01220.01-7.86
University of Helsinki200.01180.017.26
PVT a.s.200.01210.01-8.07
Onyx Internet200.01240.02-19.56
FAS200.01200.01-3.47
CyberTrust Japan, Inc.200.01380.02-49.19
Apache HTTP Server200.01210.01-8.07
Akamai200.01150.0128.71
1&1 Internet Limited200.01150.0128.71
Technische Universitaet Chemnitz190.01170.017.89
TDC190.0100.00N/A
Sun Cobalt190.0100.00N/A
Stargate.Net, Inc.190.01190.01-3.47
INFN190.01160.0114.63
BSG190.01180.011.89
media3180.01190.01-8.55
ICP-Brasil180.01170.012.21
Logacont AG170.01160.012.56
KMD170.01210.01-21.86
Japan Certification Services, Inc.170.0100.00N/A
HAL interactive, d.o.o.170.01170.01-3.47
FNMT170.01160.012.56
DeZines Web Hosting170.01180.01-8.83
Carnegie Mellon University170.01170.01-3.47
Aaex Corp.170.01160.012.56
Web Hosting160.01160.01-3.47
Usermin Webserver160.01150.012.97
University of Waterloo160.01180.01-14.19
UNESP160.01150.012.97
Webmin Webserver150.01170.01-14.83
UUNET UK150.01150.01-3.47
The Chinese University of Hong Kong150.01140.013.43
SCANDTRUST AB150.0100.00N/A
Postecom s.p.a.150.01140.013.43
MULTICERT-CA150.0100.00N/A
Etisalat150.0100.00N/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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