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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
March 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 February 2003
Count
February 2003
%
January 2003
Count
January 2003
%
Growth
%
Verisign43,92038.2741,79938.34-0.18
Thawte31,38827.3531,15028.57-4.27
Equifax (Geotrust)13,31511.6010,5649.6919.74
Unknown3,7213.243,0182.7717.13
Equifax Secure Inc2,2311.943,9993.67-47.00
Snake Oil, Ltd1,9301.681,8761.72-2.27
Comodo Limited1,6061.401,0840.9940.75
SomeOrganization1,3261.161,2541.150.45
Entrust.net1,0290.901,0530.97-7.17
U.S. Government9200.808710.800.34
Plesk Inc.6590.576660.61-6.00
The USERTRUST Network3090.272180.2034.66
TC TrustCenter for Security in Data Networks GmbH2120.182050.19-1.76
GlobalSign nv-sa1680.151430.1311.61
Plesk, Inc.1430.121040.1030.62
GTE Corporation1290.111310.12-6.45
Thawte Certification1240.111130.104.25
Ipswitch,Inc.1240.111060.1011.13
Advanced Extranet Server990.09880.086.87
Kubota Systems Inc.970.08900.082.39
Deutsche Telekom AG970.08940.09-1.97
Internet Widgits Pty Ltd860.071270.12-35.67
ispgateway840.07710.0712.39
*.ceti.pl590.05590.05-5.00
CyberTrust Japan, Inc.570.05580.05-6.64
Esat Net480.04490.04-6.94
PKI Partner AB470.04440.041.48
Ensim Corporation470.04450.04-0.78
FreeSSL420.04310.0328.71
zNET Internet Services400.03380.03-0.00
Beocity380.03310.0316.45
University of Florida350.03340.03-2.21
TAIWAN-CA.COM Inc.350.03330.030.76
NeoNova B.V.350.03350.03-5.00
SCNC340.03340.03-5.00
Webmin Software310.03310.03-5.00
Ring d.o.o.310.03330.03-10.76
media3300.03210.0235.71
WebMoney Transfer290.03240.0214.79
Franke & Partner290.03290.03-5.00
Unizeto Sp. z o.o.270.02220.0216.59
MDM iNet, LLC270.02270.02-5.00
Onyx Internet260.02270.02-8.52
HJ.NET260.02260.02-5.00
NetLock Halozatbiztonsagi Kft.250.02200.0218.75
Tele Danmark240.02200.0214.00
IPS Seguridad CA240.02120.0190.00
Advantagecom Networks, Inc.240.02210.028.57
Massachusetts Institute of Technology230.02210.024.05
BSG230.02240.02-8.96
Stalker Software, Inc.220.02200.024.50
SOGO KEIBI HOSHO CO.LTD210.02170.0217.35
Your Organization200.02190.02-0.00
University of Maryland200.02200.02-5.00
KICA200.02210.02-9.52
IceWarp Software200.02200.02-5.00
DeZines Web Hosting200.02200.02-5.00
XYZ Corporation190.02150.0120.33
Stargate.Net, Inc.190.02190.02-5.00
Rutgers University190.0200.00N/A
XAO Inc.180.02170.020.59
Web Hosting180.02190.02-10.00
UUNET UK180.02210.02-18.57
Carnegie Mellon University180.02150.0114.00
Sofia Kallin170.01170.02-5.00
Logacont AG170.01180.02-10.28
Linux Test Server170.01160.010.94
Indra's Net, Inc.170.01180.02-10.28
HAL interactive, d.o.o.170.01170.02-5.00
University of Helsinki160.01150.011.33
NIH160.01170.02-10.59
University of Waterloo140.01120.0110.83
Technische Universitaet Chemnitz140.01150.01-11.33
Sun Microsystems Inc140.01140.01-5.00
ServeLinux Networks, Inc.140.01100.0133.00
HDE140.0100.00N/A
Positive Software130.0100.00N/A
PVT a.s.130.01130.01-5.00
Kasetsart University130.01130.01-5.00
Etisalat130.01120.012.92
Baltimore Technologies Japan Co.,Ltd.130.0100.00N/A
Radio Data Group Inc120.01130.01-12.31
Postecom s.p.a.120.0100.00N/A
DeZines Web Hosting Corporation120.01120.01-5.00
Apache HTTP Server120.0100.00N/A
Aaex Corp.120.01110.013.64
University of Wisconsin - Stevens Point (UWSP)110.01100.014.50
Temp Certificate!110.0190.0116.11
Superb Internet Corp.110.01120.01-12.92
MakoLab110.01120.01-12.92
KMD110.01110.01-5.00
IPrimus USA110.01120.01-12.92
Estore Corp110.01110.01-5.00
Dummy certificate110.0100.00N/A
CNRS110.01110.01-5.00
comDesign100.01100.01-5.00
USMC100.0190.015.55
Logical Net Corp100.01100.01-5.00
Inter Clear Service Ltd100.01100.01-5.00
INFN100.01100.01-5.00

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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