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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
February 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.

CA January 2005
Count
January 2005
%
December 2004
Count
December 2004
%
Growth
%
Verisign73,36434.6971,92535.04-1.00
Thawte38,21918.0737,35618.20-0.70
Equifax (Geotrust)33,73315.9532,87216.01-0.40
Comodo Limited17,2568.1616,4908.031.57
SomeOrganization3,0891.463,0561.49-1.89
Entrust.net2,9971.422,8581.391.78
The USERTRUST Network2,9951.422,6871.318.19
Snake Oil, Ltd2,2771.082,2881.11-3.41
Unknown2,1991.042,0130.986.03
FreeSSL1,5730.741,3840.6710.32
U.S. Government1,4060.661,3950.68-2.17
Starfield Technologies, Inc.1,3520.641,1130.5417.90
SWsoft, Inc.1,2020.571,1190.554.26
XRamp Security Services Inc7350.355920.2920.51
IPS Certification Authority s.l.6720.326450.311.12
TC TrustCenter for Security in Data Networks GmbH6370.305890.294.97
Plesk, Inc.4560.224710.23-6.03
GlobalSign nv-sa4460.214290.210.91
Deutsche Telekom AG2720.132630.130.38
Ipswitch,Inc.2430.112390.12-1.31
Plesk Inc.2130.102150.10-3.84
Root CA2050.101670.0819.15
ispgateway1930.091860.090.71
DigiCert Inc.1770.081200.0643.16
Baltimore Technologies Japan Co.,Ltd.1750.081760.09-3.49
TDC1350.061420.07-7.72
Kubota Systems Inc.1320.061280.060.09
Thawte Certification1310.061360.07-6.51
GTE Corporation1220.061190.06-0.49
Positive Software1130.051030.056.48
IceWarp Software1130.051150.06-4.63
Your Name Webhosting1060.05950.058.30
Apache HTTP Server1060.051030.05-0.11
Digital Signature Trust Co.1020.05940.055.32
Equifax Secure Inc1000.051030.05-5.77
Akamai970.05930.051.24
Internet Widgits Pty Ltd880.04850.040.49
NetLock Halozatbiztonsagi Kft.870.04850.04-0.66
My Company Ltd860.04830.040.57
XYZ Corporation680.03640.033.13
OCC660.03590.038.58
ICS_TREE620.03570.035.57
Unizeto Sp. z o.o.610.03590.030.35
United Network Communications Co., Ltd.600.03600.03-2.94
Stunnel Developers Ltd570.03530.034.39
Azero570.03560.03-1.21
TAIWAN-CA.COM Inc.520.02520.03-2.94
CsideNet520.02490.023.00
Advanced Extranet Server490.02520.03-8.54
WebMoney Transfer470.02460.02-0.83
RM440.02430.02-0.68
MULTICERT-CA440.02400.026.77
KICA440.02430.02-0.68
CNRS440.02420.021.68
Japan Certification Services, Inc.430.02430.02-2.94
Webmin Software420.02410.02-0.57
Sun Microsystems Inc400.02380.022.17
Stalker Software, Inc.390.02380.02-0.38
SCNC390.02400.02-5.37
Betrusted Japan Co.,Ltd.390.02230.0164.58
Beocity390.02350.028.15
ICP-Brasil360.02330.025.88
Sun Cobalt350.02380.02-10.60
CETI350.02360.02-5.64
NTT Communications Corporation320.02280.0110.93
UniCERT Brasil Certificadora310.01300.010.30
FNMT310.01310.02-2.94
CRU310.01300.010.30
University of Maryland300.01290.010.41
Temp Certificate!300.01290.010.41
NeoNova B.V.300.01290.010.41
DFN-CERT Services GmbH300.01260.0111.99
Audkenni hf.300.01300.01-2.94
University of Helsinki290.01290.01-2.94
Pro Futuro S.A.290.01260.018.26
Massachusetts Institute of Technology290.01270.014.25
domainsofnote.com280.01280.01-2.94
Carnegie Mellon University280.01290.01-6.29
Etisalat270.01290.01-9.63
pair Networks260.01270.01-6.53
cv. Candi Internet260.01260.01-2.94
ORACLE DEMO CA260.01240.015.15
Franke & Partner260.01260.01-2.94
Comodo Japan Inc.260.01230.019.72
CFC260.01250.010.94
PVT a.s.250.01280.01-13.34
Cardiff Schools240.01240.01-2.94
community musician230.01270.01-17.32
Postecom s.p.a.230.01240.01-6.98
Hongkong Post230.01210.016.30
Aaex Corp.230.0100.00N/A
1&1 Internet Limited230.01210.016.30
Your Name220.0100.00N/A
Technische Universitaet Chemnitz220.01230.01-7.16
SuSE Linux Web Server220.01250.01-14.59
E-Telbank Sp. z o.o.220.0100.00N/A
CESNET220.0100.00N/A
Brno University of Technology220.01220.01-2.94
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH220.0100.00N/A
state-institutions210.0100.00N/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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