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Certificate Authority Market Share Report
November 1st, 2013

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 2013
Count
October 2013
%
September 2013
Count
September 2013
%
Growth
%
GoDaddy.com, Inc.305,52120.44300,97020.59-0.76
GeoTrust, Inc.264,77617.71255,67617.491.24
COMODO CA Limited143,0929.57137,1159.382.02
Verisign94,9886.3593,9966.43-1.21
DigiCert80,7975.4076,6615.253.04
Thawte, Inc.73,2424.9072,1544.94-0.76
GlobalSign nv-sa60,2544.0359,2454.05-0.57
GeoTrust Inc.55,7793.7353,9193.691.13
Unknown36,7832.4636,2552.48-0.81
CAcert Inc.35,9192.4034,4232.362.01
Starfield Technologies, Inc.30,0282.0129,3002.000.19
Network Solutions L.L.C.27,1231.8126,9091.84-1.46
StartCom Ltd.18,7651.2617,9871.231.99
Entrust, Inc.18,5541.2418,1981.25-0.33
AlphaSSL17,9851.2016,9171.163.93
TERENA15,6021.0415,2491.040.03
Internet213,9140.9313,4560.921.09
Equifax (Geotrust)13,4720.9014,9871.03-12.12
Comodo Limited11,8680.7913,6590.93-15.06
Comodo CA Limited10,3650.6910,4880.72-3.38
Cybertrust Inc9,7550.659,5410.65-0.04
Parallels8,9940.608,6340.591.84
Volusion, Inc.7,2170.487,0570.48-0.02
SomeOrganization6,2740.426,0590.411.23
GeoTrust Inc5,7190.386,1750.42-9.46
Trustwave Holdings, Inc.5,4850.375,2340.362.45
SecureTrust Corporation5,0330.345,2080.36-5.52
Cybertrust Japan Co., Ltd.4,2070.284,2140.29-2.40
Unizeto Technologies S.A.4,0740.273,9850.27-0.05
SECOM Trust Systems CO.,LTD.3,7600.253,7130.25-1.00
Google Inc3,6710.253,5310.241.64
thawte, Inc.3,4180.233,3290.230.38
Thawte3,0750.213,3380.23-9.94
GANDI SAS2,6340.182,4980.173.08
Servision Inc.2,4070.162,3700.16-0.71
Root CA1,8530.121,8560.13-2.40
Alpha1,8370.121,8510.13-2.98
GTE Corporation1,8230.121,8020.12-1.10
none1,7550.121,7110.120.28
QuoVadis Limited1,6960.111,6610.11-0.18
ispgateway1,6810.111,6280.110.94
GlobalSign1,6210.111,6500.11-3.96
Globe Hosting, Inc.1,6140.111,5100.104.50
Trusted Secure Certificate Authority1,5080.101,4800.10-0.39
U.S. Government1,4270.101,4590.10-4.38
Register.com1,3250.091,3120.09-1.27
Government of Korea1,2010.081,1250.084.37
T-Systems International GmbH1,1050.071,0790.070.12
National Institute of Informatics1,0840.071,0830.07-2.15
Autistici/Inventati1,0700.071,0450.070.10
UIC1,0460.071,0420.07-1.86
AusCERT1,0380.071,0090.070.57
EUNETIC GmbH9660.069520.07-0.80
SWsoft, Inc.8940.069070.06-3.64
Parallels, Inc.7990.057870.05-0.75
TAIWAN-CA INC.7810.057560.051.00
TC TrustCenter GmbH7210.057430.05-5.13
Snake Oil, Ltd6850.056720.05-0.35
NetLock Kft.6680.046380.042.36
ips Certification Authority6100.046400.04-6.82
Internet Widgits Pty Ltd5380.045290.04-0.57
FNMT5380.045260.04-0.01
ICP-Brasil4720.034630.03-0.34
Firstserver, Inc4700.034770.03-3.67
TBS INTERNET4540.034410.030.64
CrossTrust4460.034440.03-1.80
OCC4350.034230.030.54
SwissSign AG4260.034120.031.08
Trend Micro Inc4160.033880.034.82
Intermediate Certificate3950.033410.0213.24
RBC Hosting Center3800.033260.0213.96
KAGOYA JAPAN Inc.3760.033680.03-0.11
Apache HTTP Server3740.033690.03-0.91
XX3550.023530.02-1.68
OptimumSSL CA3530.023390.021.80
Getronics Nederland BV3520.023480.02-1.11
Zimbra Collaboration Suite3410.023400.02-1.95
DOMENY.PL Ltd.3340.023170.023.01
SGssl3290.023170.021.46
Generalitat Valenciana3190.023150.02-1.00
HTTPS Management Certificate for SonicWALL (self-signed)2860.022800.02-0.14
Ministere education nationale (MENESR)2830.022800.02-1.19
Agencia Catalana de Certificacio (NIF Q-0801176-I)2590.022500.021.28
TrustSign Certificadora Digital2550.022540.02-1.85
SonicWALL, Inc.2420.022400.02-1.42
Dotname Korea Corp.2370.022360.02-1.82
KPN Corporate Market BV2300.022140.015.07
Wells Fargo2190.012140.010.05
DREAMSCAPE NETWORKS FZ-LLC2180.012050.013.96
WebSpace-Forum, Thomas Wendt2150.012170.01-3.14
Vodafone Group2130.012070.010.60
Zimbra Collaboration Server2120.011990.014.15
WoSign eCommerce Services Limited2110.012110.01-2.24
INTERWORX LLC2090.011950.014.78
Positive Software2010.011980.01-0.76
Universitaet Stuttgart1990.011970.01-1.25
OVH SAS1960.011860.013.02
Pavel&Pavel1920.011880.01-0.16
Plesk Inc.1900.0100.00N/A
PVE Cluster Manager CA1800.0100.00N/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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