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Certificate Authority Market Share Report
June 1st, 2010

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 May 2010
Count
May 2010
%
April 2010
Count
April 2010
%
Growth
%
Equifax (Geotrust)165,61624.84162,79624.92-0.34
GoDaddy.com, Inc.95,57414.3392,45114.151.27
Verisign83,59412.5483,07112.72-1.42
Thawte63,3959.5162,5169.57-0.66
Comodo Limited45,3426.8044,9776.89-1.24
DigiCert17,6882.6516,6382.554.15
Unknown16,0542.4115,5542.381.11
Network Solutions L.L.C.14,2222.1313,8622.120.51
Comodo CA Limited12,2201.8311,9991.84-0.23
GlobalSign11,2971.6911,0051.680.56
COMODO CA Limited11,0751.6610,6121.622.24
GlobalSign nv-sa10,9081.6410,6151.630.67
Starfield Technologies, Inc.10,6531.6010,3491.580.84
Entrust, Inc.5,8900.885,5250.854.44
SecureTrust Corporation5,5090.835,4050.83-0.15
SomeOrganization3,9850.603,9290.60-0.64
TERENA3,5880.543,4310.532.45
Alpha2,8360.432,5040.3810.95
SWsoft, Inc.2,8200.422,8500.44-3.07
Entrust.net2,8150.422,9840.46-7.58
Betrusted Japan Co., Ltd.2,6480.402,6250.40-1.18
Parallels2,4400.372,3410.362.11
Cybertrust2,2150.332,2510.34-3.60
SECOM Trust Systems CO.,LTD.1,9520.291,8970.290.81
Root CA1,8280.271,8200.28-1.60
Akamai Technologies Inc1,8110.271,7350.272.26
StartCom Ltd.1,4680.221,3430.217.08
SECOM Trust.net1,3980.211,3900.21-1.47
Secure Business Services, Inc.1,2650.191,2680.19-2.27
Snake Oil, Ltd1,2550.191,2710.19-3.27
U.S. Government1,2170.181,1670.182.16
Servision Inc.1,1780.181,1410.171.14
CAcert Inc.1,1770.181,1230.172.68
thawte, Inc.1,1070.171,0560.162.70
ips Certification Authority1,0090.159950.15-0.66
Unizeto Technologies S.A.1,0060.159730.151.29
T-Systems Enterprise Services GmbH7720.127610.12-0.62
ispgateway7650.117550.12-0.74
GTE Corporation6950.107010.11-2.87
Google Inc6730.106450.102.22
UIC6530.106390.100.11
Firstserver, Inc.6500.106540.10-2.63
Trusted Secure Certificate Authority6470.106260.101.25
TC TrustCenter GmbH6180.095740.095.47
Register.com5920.095520.085.06
GeoTrust Inc5910.095710.091.40
Cybertrust Inc5460.085330.080.35
QuoVadis Limited4970.074590.076.08
none4520.074290.073.22
NetLock Halozatbiztonsagi Kft.4370.074280.070.02
Firstserver, Inc3970.063950.06-1.54
OCC3520.053520.05-2.04
TC TrustCenter for Security in Data Networks GmbH3360.053570.05-7.80
Sonera3360.053300.05-0.25
IPS Certification Authority s.l.3320.053340.05-2.62
GANDI SAS3170.052920.046.35
National Institute of Informatics3120.052900.045.40
suresupport.com3090.053050.05-0.75
TBS INTERNET2930.042910.04-1.36
TAIWAN-CA.COM Inc.2930.042850.040.71
WTF ALFA2890.042820.040.40
FNMT2790.042750.04-0.61
EUNETIC GmbH2720.042550.044.50
Parallels, Inc.2700.042580.042.52
OVH SAS2570.042400.044.90
TDC2500.042480.04-1.24
Internet Widgits Pty Ltd2490.042490.04-2.04
ICP-Brasil2400.042360.04-0.37
SonicWALL, Inc.2050.032000.030.41
InterWorx2050.031910.035.15
WebSpace-Forum, Thomas Wendt2030.032010.03-1.06
GLOBE HOSTING CERTIFICATION AUTHORITY2030.031790.0311.10
Apache HTTP Server2010.032030.03-3.00
Digi-Sign Limited1980.031980.03-2.04
AusCERT1950.031790.036.72
RBC Hosting Center1850.031730.034.76
America Online Inc.1700.031730.03-3.73
AddTrust AB1670.031700.03-3.76
Positive Software1640.021620.02-0.83
OptimumSSL CA1590.021270.0222.65
Zimbra Collaboration Suite1540.021450.024.05
My Company Ltd1540.021560.02-3.29
RM1530.021540.02-2.67
SiteGround LLC.1470.021390.023.60
TNC1430.021430.02-2.04
Trustwave Holdings, Inc.1410.021400.02-1.34
CNRS1390.021430.02-4.78
Getronics PinkRoccade Nederland B.V.1380.021330.021.65
XRamp Security Services Inc1370.021310.022.45
New Dream Network, LLC.1240.021240.02-2.04
Sun Microsystems Inc1180.021140.021.40
Government of Korea1160.021000.0213.64
MULTICERT-CA1100.021060.021.66
XX1070.021070.02-2.04
Wells Fargo1050.021040.02-1.09
Unizeto Sp. z o.o.1030.021030.02-2.04
Default Web Site1020.021030.02-2.99
DigiNotar B.V.1010.021000.02-1.06
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH1010.021020.02-3.00
WoSign, Inc.1000.011060.02-7.58

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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