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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
November 1st, 2011

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 October 2011
Count
October 2011
%
September 2011
Count
September 2011
%
Growth
%
GoDaddy.com, Inc.174,57319.39166,87618.912.52
Verisign90,13910.0189,86610.19-1.70
GeoTrust, Inc.84,6319.4078,9828.955.01
Equifax (Geotrust)68,9687.6672,6748.24-7.00
Thawte, Inc.45,9875.1144,3975.031.51
Comodo Limited39,8044.4241,3904.69-5.76
DigiCert35,8243.9834,6283.921.38
GeoTrust Inc.34,5923.8433,6653.820.70
COMODO CA Limited32,7273.6330,1513.426.37
Comodo CA Limited23,7052.6322,9922.611.04
Unknown22,9302.5522,5642.56-0.41
Thawte21,0782.3422,2932.53-7.34
GlobalSign nv-sa19,8642.2119,0152.162.37
Network Solutions L.L.C.19,8502.2019,7942.24-1.72
Starfield Technologies, Inc.16,9001.8816,6471.89-0.51
GlobalSign15,6061.7315,5171.76-1.44
Entrust, Inc.11,8381.3111,6721.32-0.61
TERENA8,2450.928,0000.911.00
SecureTrust Corporation7,2260.807,0850.80-0.05
StartCom Ltd.6,3650.716,0710.692.74
Alpha4,7810.535,2810.60-11.28
SomeOrganization4,6300.514,6670.53-2.78
Parallels4,3300.484,2410.480.05
Akamai Technologies Inc3,9740.443,8650.440.76
Cybertrust Japan Co., Ltd.3,2740.363,2150.36-0.20
Internet23,1090.352,7540.3110.63
SECOM Trust Systems CO.,LTD.2,7210.302,6790.30-0.47
GeoTrust Inc2,4790.282,3600.272.94
CAcert Inc.2,1250.242,0510.231.53
thawte, Inc.2,0970.232,0750.24-0.96
SWsoft, Inc.2,0530.232,1130.24-4.78
AlphaSSL2,0380.231,6650.1919.95
Root CA1,8780.211,8810.21-2.16
Unizeto Technologies S.A.1,8260.201,8110.21-1.19
Servision Inc.1,7650.201,7500.20-1.16
Google Inc1,4820.161,4050.163.37
Volusion, Inc.1,4750.161,1490.1325.80
U.S. Government1,3730.151,3660.15-1.50
TC TrustCenter GmbH1,2610.141,2560.14-1.61
GTE Corporation1,1270.131,0750.122.74
SECOM Trust.net1,1020.121,1320.13-4.60
Cybertrust Inc1,0970.121,0600.121.42
QuoVadis Limited1,0500.121,0140.111.48
Register.com1,0270.111,0870.12-7.41
ispgateway9850.119840.11-1.90
Snake Oil, Ltd9720.119840.11-3.20
ips Certification Authority9230.109290.11-2.63
UIC9180.109110.10-1.25
Trusted Secure Certificate Authority8880.108730.10-0.32
Cybertrust8750.109420.11-8.97
none8530.098170.092.32
GANDI SAS8500.098110.092.71
Sun Microsystems Inc7780.097790.09-2.13
Betrusted Japan Co., Ltd.6610.077020.08-7.73
AusCERT6360.076200.070.53
T-Systems International GmbH6330.075660.069.60
National Institute of Informatics6010.075850.070.68
EUNETIC GmbH5970.075840.070.18
Secure Business Services, Inc.5550.066190.07-12.13
OVH SAS5510.064820.0512.03
Government of Korea5230.065050.061.49
NetLock Halozatbiztonsagi Kft.5180.065080.06-0.07
Parallels, Inc.4920.054800.050.45
Globe Hosting, Inc.4900.054690.052.39
Autistici/Inventati4900.054750.051.09
Firstserver, Inc4440.054510.05-3.52
SYS-CON Media4300.054050.054.05
OCC3790.043710.040.11
FNMT3600.043480.041.38
Apache HTTP Server3540.043550.04-2.28
WTF ALFA3520.043510.04-1.72
TBS INTERNET3430.043440.04-2.29
WebSpace-Forum, Thomas Wendt3300.042610.0323.91
ICP-Brasil3280.043340.04-3.76
Internet Widgits Pty Ltd3250.043300.04-3.49
RBC Hosting Center3230.043040.034.12
Sonera3220.043270.04-3.50
CrossTrust3120.032840.037.66
Zimbra Collaboration Suite2780.032630.033.59
TAIWAN-CA INC.2510.032300.036.95
OptimumSSL CA2470.032360.032.57
SonicWALL, Inc.2450.032500.03-3.96
XX2430.032310.033.09
TDC2350.032390.03-3.64
T-Systems Enterprise Services GmbH2280.032730.03-18.16
TAIWAN-CA.COM Inc.2150.022200.02-4.23
SiteGround LLC.2150.021880.0212.07
Entrust.net2140.022320.03-9.60
Getronics PinkRoccade Nederland B.V.1980.022110.02-8.04
Ministere education nationale (MENESR)1680.021680.02-2.00
Digi-Sign Limited1670.021650.02-0.81
WoSign, Inc.1640.021660.02-3.18
SwissSign AG1600.021500.024.53
Wells Fargo1550.021510.020.59
SGssl1540.021590.02-5.08
Positive Software1540.021600.02-5.68
HTTPS Management Certificate for SonicWALL (self-signed)1520.0200.00N/A
InterWorx1500.021720.02-14.54
My Company Ltd1460.021490.02-3.97
Universitaet Heidelberg1450.021440.02-1.32

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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