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You are viewing an outdated report. The latest version of this report was published on October 1st, 2020


    
Certificate Authority Market Share Report
May 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 April 2011
Count
April 2011
%
March 2011
Count
March 2011
%
Growth
%
GoDaddy.com, Inc.137,50216.72132,83716.382.03
Equifax (Geotrust)128,54515.63143,02717.64-11.41
Verisign88,76010.7988,97710.97-1.67
Comodo Limited49,3746.0050,9356.28-4.45
GeoTrust, Inc.35,9744.3723,4362.8951.31
Thawte35,5914.3340,1204.95-12.55
Thawte, Inc.31,5823.8427,6693.4112.51
DigiCert29,9463.6427,9533.455.60
GeoTrust Inc.21,9352.6718,4942.2816.91
COMODO CA Limited20,6602.5119,4062.394.94
Unknown20,6072.5120,2732.500.20
Comodo CA Limited19,2242.3418,4842.282.52
Network Solutions L.L.C.18,3042.2318,0802.23-0.21
GlobalSign nv-sa15,9421.9415,6071.930.69
GlobalSign15,0361.8314,6881.810.91
Starfield Technologies, Inc.15,0111.8314,8161.83-0.13
Entrust, Inc.10,5981.2910,3251.271.18
SecureTrust Corporation6,7560.826,6800.82-0.31
TERENA6,6920.816,4260.792.65
Alpha5,6380.694,8270.6015.13
SomeOrganization4,6080.564,5100.560.71
StartCom Ltd.4,4390.543,7620.4616.31
Parallels3,7540.463,6460.451.49
Akamai Technologies Inc3,2440.393,2000.39-0.07
SECOM Trust Systems CO.,LTD.2,5870.312,4970.312.13
Cybertrust Japan Co., Ltd.2,5370.312,2540.2810.95
SWsoft, Inc.2,3410.282,4230.30-4.76
Root CA1,9050.231,9210.24-2.25
thawte, Inc.1,8520.231,8050.221.14
Sun Microsystems Inc1,8430.221,8770.23-3.21
CAcert Inc.1,7630.211,7000.212.23
GeoTrust Inc1,6860.201,5370.198.13
Servision Inc.1,6810.201,6700.21-0.78
Unizeto Technologies S.A.1,5790.191,5210.192.33
Cybertrust1,3600.171,4510.18-7.61
U.S. Government1,3440.161,3560.17-2.30
Betrusted Japan Co., Ltd.1,2740.151,5280.19-17.81
TC TrustCenter GmbH1,2660.151,2600.16-0.96
SECOM Trust.net1,2550.151,2860.16-3.80
Google Inc1,1250.141,0270.137.98
Snake Oil, Ltd1,0880.131,1320.14-5.26
ips Certification Authority9930.121,0030.12-2.41
Register.com9890.129740.120.09
Secure Business Services, Inc.9560.121,0600.13-11.10
Cybertrust Inc9500.129170.112.12
ispgateway9290.119150.110.08
UIC8880.118800.11-0.53
GTE Corporation8710.118660.11-0.86
QuoVadis Limited8680.119570.12-10.59
Trusted Secure Certificate Authority8170.108120.10-0.82
none7150.096880.082.44
Internet27100.093430.04104.04
GANDI SAS6610.086440.081.17
T-Systems Enterprise Services GmbH5820.076570.08-12.68
NetLock Halozatbiztonsagi Kft.5170.065190.06-1.81
AusCERT5080.065060.06-1.04
National Institute of Informatics4980.064340.0513.11
EUNETIC GmbH4700.064600.060.72
Firstserver, Inc4390.054270.051.34
Parallels, Inc.4130.054110.05-0.95
Entrust.net4050.054430.05-9.88
Government of Korea4030.053750.055.93
OVH SAS3840.053730.051.48
OCC3540.043570.04-2.26
Apache HTTP Server3410.043210.044.71
WTF ALFA3400.043360.04-0.25
TBS INTERNET3360.043440.04-3.72
Sonera3240.043360.04-4.95
Globe Hosting, Inc.3210.042830.0311.81
FNMT3210.043120.041.42
Internet Widgits Pty Ltd3110.043070.04-0.14
ICP-Brasil3020.043010.04-1.10
TAIWAN-CA.COM Inc.2860.032950.04-4.43
Autistici/Inventati2670.033300.04-20.25
SYS-CON Media2560.032070.0321.91
Zimbra Collaboration Suite2460.032360.032.75
RBC Hosting Center2460.032340.033.63
TDC2420.032570.03-7.18
SonicWALL, Inc.2400.032370.03-0.18
WebSpace-Forum, Thomas Wendt2350.032390.03-3.08
T-Systems International GmbH2210.031520.0243.32
OptimumSSL CA2000.022090.03-5.67
XX1980.021970.02-0.93
Getronics PinkRoccade Nederland B.V.1930.021890.020.66
Digi-Sign Limited1840.021920.02-5.53
SiteGround LLC.1790.021900.02-7.13
IPS Certification Authority s.l.1760.022030.03-14.54
InterWorx1710.021720.02-2.00
WoSign, Inc.1590.021780.02-11.95
America Online Inc.1570.021590.02-2.67
My Company Ltd1510.021440.023.36
Positive Software1480.021430.022.02
Ministere education nationale (MENESR)1470.021440.020.63
New Dream Network, LLC.1390.021400.02-2.13
Universitaet Heidelberg1380.0200.00N/A
HTTPS Management Certificate for SonicWALL (self-signed)1370.021400.02-3.54
XRamp Security Services Inc1360.021370.02-2.15
Wells Fargo1310.0200.00N/A
TNC1300.021380.02-7.14
TAIWAN-CA INC.1300.0200.00N/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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