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You are viewing an outdated report.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
September 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.

XYZ Corporation CA Certificate Historical Market Share Graph

CA August 2005
Count
August 2005
%
July 2005
Count
July 2005
%
Growth
%
Verisign71,95932.4472,40832.55-0.36
Equifax (Geotrust)38,86217.5238,19917.172.00
Thawte35,94516.2037,89517.04-4.90
Comodo Limited19,7918.9219,4788.761.87
Starfield Technologies, Inc.3,5401.603,1621.4212.25
Entrust.net3,3511.513,2771.472.53
Unknown3,0831.392,9741.343.94
SomeOrganization2,9851.353,0391.37-1.52
The USERTRUST Network2,8601.293,0241.36-5.17
Snake Oil, Ltd2,0270.912,0450.92-0.62
SWsoft, Inc.1,5810.711,5540.702.01
U.S. Government1,3570.611,3640.61-0.25
ChainedSSL1,2370.561,1340.519.37
XRamp Security Services Inc1,0780.491,0280.465.14
DigiCert Inc.7280.336200.2817.73
TC TrustCenter for Security in Data Networks GmbH7070.327010.321.12
FreeSSL7010.328270.37-15.01
IPS Certification Authority s.l.6990.327160.32-2.12
GlobalSign nv-sa5030.235040.230.06
Root CA3920.183690.176.51
Plesk, Inc.3330.153390.15-1.51
Deutsche Telekom AG2960.132880.133.05
GTE Corporation2630.122600.121.42
Betrusted Japan Co.,Ltd.2320.101940.0919.90
ispgateway2170.102150.101.20
Ipswitch,Inc.2030.092220.10-8.32
Network Solutions L.L.C.1960.09700.03180.74
Your Name Webhosting1630.071570.074.10
TDC1510.071530.07-1.05
Kubota Systems Inc.1460.071500.07-2.41
Plesk Inc.1400.061410.06-0.45
Apache HTTP Server1330.061400.06-4.75
Akamai1130.051050.057.90
Positive Software1120.051110.051.17
Internet Widgits Pty Ltd1120.051030.059.02
IceWarp Software1010.051060.05-4.47
Thawte Certification980.041080.05-9.02
Digital Signature Trust Co.910.04930.04-1.89
NetLock Halozatbiztonsagi Kft.890.04880.041.40
Unizeto Sp. z o.o.880.04820.047.60
Baltimore Technologies Japan Co.,Ltd.850.041040.05-18.05
OCC830.04810.042.74
Comodo Japan Inc.820.04730.0312.62
Equifax Secure Inc710.03750.03-5.08
ICS_TREE680.03640.036.53
Azero610.03610.030.26
United Network Communications Co., Ltd.590.0300.00N/A
XYZ Corporation570.03540.025.83
CsideNet560.03560.030.26
CNRS560.03520.027.98
Stunnel Developers Ltd510.02500.022.27
RM510.02500.022.27
ICP-Brasil510.02440.0216.21
Sun Microsystems Inc490.02470.024.53
Japan Certification Services, Inc.490.02480.022.35
CRU490.02490.020.26
WebMoney Transfer480.02500.02-3.75
MULTICERT-CA450.02430.024.93
My Company Ltd420.02900.04-53.21
SCNC410.02420.02-2.12
NTT Communications Corporation410.02430.02-4.40
Firstserver, Inc.410.02390.025.41
UniCERT Brasil Certificadora400.02370.028.39
GlobalSign Inc380.02330.0115.46
Beocity380.02380.020.26
Stalker Software, Inc.370.02360.023.05
Advanced Extranet Server370.02380.02-2.37
FNMT360.02360.020.26
University of Maryland330.01330.010.26
Etisalat330.01330.010.26
CETI330.01330.010.26
IceWarp Ltd.320.01310.013.50
DFN-CERT Services GmbH320.01320.010.26
Webmin Software310.01300.013.61
Temp Certificate!310.01290.017.18
Hostgator300.01270.0111.40
SuSE Linux Web Server290.01290.010.26
Carnegie Mellon University290.01290.010.26
CFC290.01290.010.26
Audkenni hf.290.01290.010.26
domainsofnote.com280.01280.010.26
cv. Candi Internet280.01280.010.26
Your Name280.01290.01-3.19
University of Helsinki280.01280.010.26
Trusted Secure Certificate Authority280.01230.0122.06
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH280.01280.010.26
TAIWAN-CA.COM Inc.270.01270.010.26
Pro Futuro S.A.270.01260.014.12
Sun Cobalt260.01270.01-3.45
NeoNova B.V.260.01270.01-3.45
Massachusetts Institute of Technology260.01250.014.27
Franke & Partner260.01260.010.26
StartCom Ltd.250.0100.00N/A
Brno University of Technology250.01250.010.26
Positive Software Corporation240.0100.00N/A
state-institutions230.0100.00N/A
Prvni certifikacni autorita a.s.230.0100.00N/A
ORACLE DEMO CA230.01280.01-17.64
IT Bureau of Hainan Province230.0100.00N/A
ISPAdmin230.01250.01-7.76

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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