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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
May 1st, 2007

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 April 2007
Count
April 2007
%
March 2007
Count
March 2007
%
Growth
%
Verisign79,18124.0278,80024.44-1.70
Equifax (Geotrust)71,23721.6169,15721.450.77
Thawte44,73613.5744,12713.68-0.82
Comodo Limited27,8798.4626,7988.311.78
Starfield Technologies, Inc.14,8254.5014,9934.65-3.27
Unknown7,8522.387,5892.351.22
DigiCert7,3572.236,8282.125.41
Entrust.net3,9511.204,0791.27-5.24
AddTrust AB3,7811.154,4131.37-16.18
Network Solutions L.L.C.3,7011.123,4141.066.05
GoDaddy.com, Inc.3,5481.082,1030.6565.05
SomeOrganization3,3421.013,3201.03-1.52
SWsoft, Inc.3,0450.923,0340.94-1.82
XRamp Security Services Inc2,2030.672,2990.71-6.26
Snake Oil, Ltd1,9230.581,9180.59-1.92
SECOM Trust.net1,4010.431,1710.3617.04
U.S. Government1,3970.421,3930.43-1.89
IPS Certification Authority s.l.1,2080.371,1460.363.12
Root CA1,1180.341,0450.324.66
TC TrustCenter for Security in Data Networks GmbH1,0160.319780.301.63
GlobalSign nv-sa9500.299420.29-1.34
Comodo CA Limited8040.246190.1927.07
Cybertrust6570.205480.1717.29
Positive Software Corporation5990.186330.20-7.43
Secure Business Services, Inc.5810.184750.1519.66
Earthlink Inc5730.175720.18-2.00
Betrusted Japan Co.,Ltd.4450.145210.16-16.44
ispgateway4070.123960.120.55
T-Systems Enterprise Services GmbH3800.123610.112.98
Betrusted Japan Co., Ltd.3530.112380.0745.10
GTE Corporation3180.103070.101.33
Firstserver, Inc.2680.082660.08-1.43
CAcert Inc.2570.082400.074.76
Comodo Japan Inc.2460.072770.09-13.12
Firstserver, Inc2370.07500.02363.71
OCC2360.072250.072.61
Unizeto Sp. z o.o.2210.072100.072.95
TDC2120.062020.062.67
Akamai Technologies Inc2030.061720.0515.46
StartCom Ltd.1820.061720.053.52
BlueHost.Com1820.061790.06-0.53
ChainedSSL1810.051920.06-7.78
Digi-Sign Limited1770.051700.051.86
NetLock Halozatbiztonsagi Kft.1610.051450.048.62
Plesk, Inc.1600.051590.05-1.56
Trusted Secure Certificate Authority1580.051450.046.60
RegisterFly.com, inc.1500.051320.0411.17
Apache HTTP Server1470.041440.04-0.13
Your Name Webhosting1420.041390.04-0.06
RM1350.041290.042.38
Positive Software1280.041270.04-1.40
p1atin.de1210.04450.01163.05
GlobalSign Inc1200.041060.0310.75
COMODO CA Limited1180.0400.00N/A
NTT Communications Corporation1160.041250.04-9.21
hosting1120.03940.0316.56
Internet Widgits Pty Ltd1080.031050.030.62
ICS_TREE1070.031090.03-3.97
CNRS1040.03990.032.77
TBS INTERNET1020.03800.0224.73
FreeSSL990.031030.03-5.97
Digital Signature Trust Co.970.03960.03-1.15
ICP-Brasil960.03920.032.08
SecureTrust Corporation910.0300.00N/A
Default Web Site890.03860.031.24
Akamai890.031070.03-18.63
Sonera880.03790.028.97
Ipswitch,Inc.880.03920.03-6.42
FNMT870.03810.035.08
CRU810.02850.03-6.77
Plesk Inc.780.02750.021.74
IceWarp Software770.02770.02-2.17
Sun Microsystems Inc710.02680.022.15
MULTICERT-CA710.02700.02-0.77
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH710.02720.02-3.53
My Company Ltd690.02580.0216.38
Thawte Certification680.02700.02-4.97
WebMoney Transfer650.02630.020.94
New Dream Network, LLC.640.02630.02-0.62
Unicert Brasil Certificadora630.02640.02-3.70
United Network Communications Co., Ltd.590.02590.02-2.17
InterWorx590.02540.026.89
XYZ Corporation580.02510.0211.26
Japan Certification Services, Inc.580.02570.02-0.45
Temp Certificate!570.02510.029.34
Wytwornia Telewizyjno-Filmowa "Alfa"560.02470.0116.56
TAIWAN-CA.COM Inc.480.01450.014.35
University of Maryland470.01430.016.93
Linkopings universitet470.01470.01-2.17
WebSpace-Forum, Thomas Wendt460.0100.00N/A
Postecom S.p.A.460.01410.019.76
SuSE Linux Web Server450.01420.014.82
CsideNet440.01460.01-6.42
TAIWAN-CA.COM430.01460.01-8.55
Cisco Systems, Inc.430.01400.015.17
University of Washington420.01410.010.22
Prvni certifikacni autorita a.s.420.01420.01-2.17
IceWarp Ltd.420.01430.01-4.45
Apache Friends420.0100.00N/A
"PositiveSoftwareCorporation"410.0100.00N/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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