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 2012 Count	April 2012 %	March 2012 Count	March 2012 %	Growth %
GoDaddy.com, Inc.	227,055	21.90	217,105	21.40	2.37
GeoTrust, Inc.	126,273	12.18	120,017	11.83	2.99
Verisign	90,828	8.76	91,535	9.02	-2.87
Thawte, Inc.	56,676	5.47	54,815	5.40	1.21
COMODO CA Limited	51,174	4.94	47,280	4.66	5.95
Equifax (Geotrust)	44,329	4.28	49,498	4.88	-12.33
DigiCert	43,437	4.19	41,796	4.12	1.73
GeoTrust Inc.	40,522	3.91	39,414	3.88	0.64
Unknown	28,684	2.77	27,756	2.74	1.16
Comodo CA Limited	28,155	2.72	28,773	2.84	-4.21
Comodo Limited	27,926	2.69	29,152	2.87	-6.23
GlobalSign nv-sa	26,520	2.56	25,235	2.49	2.87
Network Solutions L.L.C.	21,623	2.09	21,290	2.10	-0.58
Starfield Technologies, Inc.	19,258	1.86	18,799	1.85	0.28
GlobalSign	14,518	1.40	14,770	1.46	-3.78
Entrust, Inc.	13,473	1.30	13,241	1.30	-0.40
Thawte	12,575	1.21	13,967	1.38	-11.87
TERENA	9,942	0.96	9,581	0.94	1.58
SecureTrust Corporation	9,062	0.87	8,753	0.86	1.34
StartCom Ltd.	8,502	0.82	8,111	0.80	2.61
AlphaSSL	6,076	0.59	5,149	0.51	15.51
Internet2	5,486	0.53	5,128	0.51	4.72
Parallels	5,241	0.51	5,118	0.50	0.24
SomeOrganization	4,952	0.48	4,899	0.48	-1.05
CAcert Inc.	4,787	0.46	3,999	0.39	17.18
Akamai Technologies Inc	4,775	0.46	4,603	0.45	1.55
Cybertrust Japan Co., Ltd.	3,668	0.35	3,586	0.35	0.13
Volusion, Inc.	3,643	0.35	3,289	0.32	8.42
GeoTrust Inc	3,340	0.32	3,194	0.31	2.36
Alpha	2,867	0.28	3,301	0.33	-14.98
SECOM Trust Systems CO.,LTD.	2,866	0.28	2,864	0.28	-2.04
thawte, Inc.	2,389	0.23	2,347	0.23	-0.36
Unizeto Technologies S.A.	2,195	0.21	2,387	0.24	-9.99
Google Inc	1,960	0.19	1,866	0.18	2.82
Servision Inc.	1,931	0.19	1,895	0.19	-0.25
Root CA	1,851	0.18	1,866	0.18	-2.90
SWsoft, Inc.	1,737	0.17	1,799	0.18	-5.49
GTE Corporation	1,437	0.14	1,356	0.13	3.74
U.S. Government	1,410	0.14	1,400	0.14	-1.41
Cybertrust Inc	1,308	0.13	1,275	0.13	0.42
QuoVadis Limited	1,230	0.12	1,207	0.12	-0.25
TC TrustCenter GmbH	1,215	0.12	1,205	0.12	-1.30
ispgateway	1,133	0.11	1,090	0.11	1.75
Register.com	1,083	0.10	1,067	0.11	-0.64
GANDI SAS	1,078	0.10	1,047	0.10	0.79
Trusted Secure Certificate Authority	1,022	0.10	996	0.10	0.44
none	1,010	0.10	973	0.10	1.61
UIC	952	0.09	945	0.09	-1.39
SECOM Trust.net	934	0.09	975	0.10	-6.23
Snake Oil, Ltd	902	0.09	906	0.09	-2.54
T-Systems International GmbH	848	0.08	819	0.08	1.35
ips Certification Authority	768	0.07	781	0.08	-3.74
Government of Korea	763	0.07	728	0.07	2.59
EUNETIC GmbH	727	0.07	703	0.07	1.23
AusCERT	715	0.07	720	0.07	-2.79
National Institute of Informatics	708	0.07	663	0.07	4.53
Autistici/Inventati	672	0.06	644	0.06	2.14
OVH SAS	652	0.06	593	0.06	7.63
Globe Hosting, Inc.	644	0.06	633	0.06	-0.41
SYS-CON Media	597	0.06	581	0.06	0.58
Parallels, Inc.	591	0.06	567	0.06	2.03
Cybertrust	546	0.05	596	0.06	-10.32
NetLock Halozatbiztonsagi Kft.	492	0.05	512	0.05	-5.94
Firstserver, Inc	457	0.04	449	0.04	-0.37
Betrusted Japan Co., Ltd.	433	0.04	481	0.05	-11.88
FNMT	400	0.04	390	0.04	0.40
OCC	396	0.04	401	0.04	-3.33
CrossTrust	384	0.04	375	0.04	0.24
TAIWAN-CA INC.	378	0.04	356	0.04	3.94
Trustwave Holdings, Inc.	377	0.04	566	0.06	-34.80
Internet Widgits Pty Ltd	374	0.04	374	0.04	-2.11
Secure Business Services, Inc.	373	0.04	403	0.04	-9.40
WTF ALFA	363	0.04	360	0.04	-1.30
ICP-Brasil	355	0.03	344	0.03	1.02
Zimbra Collaboration Suite	352	0.03	333	0.03	3.47
TBS INTERNET	351	0.03	352	0.03	-2.39
RBC Hosting Center	349	0.03	337	0.03	1.37
WebSpace-Forum, Thomas Wendt	327	0.03	479	0.05	-33.17
Apache HTTP Server	325	0.03	313	0.03	1.64
OptimumSSL CA	293	0.03	285	0.03	0.64
Sonera	283	0.03	294	0.03	-5.77
XX	268	0.03	256	0.03	2.48
SonicWALL, Inc.	260	0.03	259	0.03	-1.73
Getronics Nederland BV	246	0.02	236	0.02	2.04
TDC	228	0.02	225	0.02	-0.81
SwissSign AG	228	0.02	218	0.02	2.38
InterWorx	209	0.02	182	0.02	12.41
Ministere education nationale (MENESR)	203	0.02	198	0.02	0.36
Digi-Sign Limited	186	0.02	188	0.02	-3.15
KAGOYA JAPAN Inc.	184	0.02	177	0.02	1.76
SiteGround LLC.	183	0.02	183	0.02	-2.11
TAIWAN-CA.COM Inc.	176	0.02	180	0.02	-4.29
SGssl	176	0.02	164	0.02	5.05
Agencia Catalana de Certificacio (NIF Q-0801176-I)	173	0.02	163	0.02	3.89
Wells Fargo	170	0.02	168	0.02	-0.95
HTTPS Management Certificate for SonicWALL (self-signed)	168	0.02	163	0.02	0.89
Entrust.net	163	0.02	174	0.02	-8.30
My Company Ltd	160	0.02	159	0.02	-1.50
MULTICERT-CA	156	0.02	158	0.02	-3.35
Positive Software	155	0.01	0	0.00	N/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.