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Certificate Authority Market Share Report
August 1st, 2005

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.

ORACLE DEMO CA CA Certificate Historical Market Share Graph

CA July 2005
Count
July 2005
%
June 2005
Count
June 2005
%
Growth
%
Verisign72,40832.5572,39932.79-0.73
Equifax (Geotrust)38,19917.1737,66817.060.65
Thawte37,89517.0437,84317.14-0.61
Comodo Limited19,4788.7619,0098.611.70
Entrust.net3,2771.473,2701.48-0.53
Starfield Technologies, Inc.3,1621.422,9101.327.85
SomeOrganization3,0391.373,0471.38-1.01
The USERTRUST Network3,0241.363,1081.41-3.43
Unknown2,9741.342,8651.303.03
Snake Oil, Ltd2,0450.922,0850.94-2.65
SWsoft, Inc.1,5540.701,5100.682.15
U.S. Government1,3640.611,3550.61-0.09
ChainedSSL1,1340.511,0440.477.81
XRamp Security Services Inc1,0280.469860.453.48
FreeSSL8270.378650.39-5.11
IPS Certification Authority s.l.7160.326990.321.67
TC TrustCenter for Security in Data Networks GmbH7010.326930.310.40
DigiCert Inc.6200.285840.265.37
GlobalSign nv-sa5040.234950.221.06
Root CA3690.173460.165.85
Plesk, Inc.3390.153480.16-3.31
Deutsche Telekom AG2880.132850.130.30
GTE Corporation2600.122610.12-1.13
Ipswitch,Inc.2220.102290.10-3.78
ispgateway2150.102110.101.14
Betrusted Japan Co.,Ltd.1940.091660.0816.00
Your Name Webhosting1570.071510.073.20
TDC1530.071570.07-3.27
Kubota Systems Inc.1500.071460.071.97
Plesk Inc.1410.061600.07-12.53
Apache HTTP Server1400.061260.0610.28
Positive Software1110.051140.05-3.36
Thawte Certification1080.051050.052.09
IceWarp Software1060.051050.050.20
Akamai1050.051020.052.17
Baltimore Technologies Japan Co.,Ltd.1040.051180.05-12.52
Internet Widgits Pty Ltd1030.051060.05-3.55
Digital Signature Trust Co.930.04930.04-0.74
My Company Ltd900.04890.040.37
NetLock Halozatbiztonsagi Kft.880.04920.04-5.06
Unizeto Sp. z o.o.820.04810.040.48
OCC810.04830.04-3.14
Equifax Secure Inc750.03820.04-9.22
Comodo Japan Inc.730.03620.0316.86
Network Solutions L.L.C.700.03310.01124.12
ICS_TREE640.03650.03-2.27
Azero610.03610.03-0.74
CsideNet560.03560.03-0.74
XYZ Corporation540.02540.02-0.74
CNRS520.02500.023.23
WebMoney Transfer500.02510.02-2.69
Stunnel Developers Ltd500.02560.03-11.38
RM500.02520.02-4.56
CRU490.02470.023.48
Japan Certification Services, Inc.480.02470.021.37
Sun Microsystems Inc470.02460.021.41
ICP-Brasil440.02450.02-2.95
NTT Communications Corporation430.02410.024.10
MULTICERT-CA430.02430.02-0.74
SCNC420.02380.029.70
Firstserver, Inc.390.02310.0124.87
Beocity380.02390.02-3.29
Advanced Extranet Server380.02420.02-10.20
UniCERT Brasil Certificadora370.02380.02-3.36
Stalker Software, Inc.360.02370.02-3.43
KICA360.02380.02-5.97
FNMT360.02350.022.09
University of Maryland330.01310.015.66
GlobalSign Inc330.01300.019.18
Etisalat330.01320.012.36
CETI330.01330.01-0.74
DFN-CERT Services GmbH320.01330.01-3.75
IceWarp Ltd.310.01300.012.56
Webmin Software300.01310.01-3.95
Your Name290.01280.012.80
Temp Certificate!290.01310.01-7.15
SuSE Linux Web Server290.01260.0110.71
Carnegie Mellon University290.01270.016.61
CFC290.01280.012.80
Audkenni hf.290.01280.012.80
domainsofnote.com280.01280.01-0.74
cv. Candi Internet280.01290.01-4.17
University of Helsinki280.01280.01-0.74
ORACLE DEMO CA280.01270.012.93
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH280.01280.01-0.74
TAIWAN-CA.COM Inc.270.01320.01-16.25
Sun Cobalt270.01320.01-16.25
NeoNova B.V.270.01270.01-0.74
Hostgator270.01270.01-0.74
Pro Futuro S.A.260.01230.0112.20
Franke & Partner260.01260.01-0.74
Massachusetts Institute of Technology250.01250.01-0.74
ISPAdmin250.01250.01-0.74
CESNET250.01260.01-4.56
Brno University of Technology250.01240.013.39
websitewelcome.com240.01220.018.28
Your Organization230.01250.01-8.69
Trusted Secure Certificate Authority230.0100.00N/A
S1 Corporation230.0100.00N/A
WEBMASTERS.COM220.0100.00N/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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