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	September 2011 Count	September 2011 %	August 2011 Count	August 2011 %	Growth %
GoDaddy.com, Inc.	166,876	18.91	156,416	17.84	6.00
Verisign	89,866	10.19	88,829	10.13	0.52
GeoTrust, Inc.	78,982	8.95	68,809	7.85	14.05
Equifax (Geotrust)	72,674	8.24	96,981	11.06	-25.54
Thawte, Inc.	44,397	5.03	42,540	4.85	3.70
Comodo Limited	41,390	4.69	43,428	4.95	-5.30
DigiCert	34,628	3.92	33,645	3.84	2.26
GeoTrust Inc.	33,665	3.82	31,762	3.62	5.31
COMODO CA Limited	30,151	3.42	27,450	3.13	9.13
Comodo CA Limited	22,992	2.61	22,067	2.52	3.52
Unknown	22,564	2.56	22,053	2.52	1.66
Thawte	22,293	2.53	24,162	2.76	-8.33
Network Solutions L.L.C.	19,794	2.24	19,471	2.22	1.01
GlobalSign nv-sa	19,015	2.16	18,250	2.08	3.52
Starfield Technologies, Inc.	16,647	1.89	16,322	1.86	1.34
GlobalSign	15,517	1.76	15,613	1.78	-1.25
Entrust, Inc.	11,672	1.32	11,486	1.31	0.97
TERENA	8,000	0.91	7,653	0.87	3.86
SecureTrust Corporation	7,085	0.80	6,961	0.79	1.13
StartCom Ltd.	6,071	0.69	5,709	0.65	5.66
Alpha	5,281	0.60	5,587	0.64	-6.08
SomeOrganization	4,667	0.53	4,637	0.53	0.00
Parallels	4,241	0.48	4,125	0.47	2.15
Akamai Technologies Inc	3,865	0.44	3,744	0.43	2.57
Cybertrust Japan Co., Ltd.	3,215	0.36	3,108	0.35	2.78
Internet2	2,754	0.31	2,197	0.25	24.55
SECOM Trust Systems CO.,LTD.	2,679	0.30	2,647	0.30	0.56
GeoTrust Inc	2,360	0.27	2,217	0.25	5.77
SWsoft, Inc.	2,113	0.24	2,181	0.25	-3.74
thawte, Inc.	2,075	0.24	2,030	0.23	1.56
CAcert Inc.	2,051	0.23	2,004	0.23	1.69
Root CA	1,881	0.21	1,875	0.21	-0.32
Unizeto Technologies S.A.	1,811	0.21	1,741	0.20	3.35
Servision Inc.	1,750	0.20	1,738	0.20	0.04
AlphaSSL	1,665	0.19	1,095	0.12	51.08
Google Inc	1,405	0.16	1,348	0.15	3.56
U.S. Government	1,366	0.15	1,371	0.16	-1.00
TC TrustCenter GmbH	1,256	0.14	1,255	0.14	-0.56
Volusion, Inc.	1,149	0.13	840	0.10	35.91
SECOM Trust.net	1,132	0.13	1,146	0.13	-1.86
Register.com	1,087	0.12	1,073	0.12	0.65
GTE Corporation	1,075	0.12	1,042	0.12	2.50
Cybertrust Inc	1,060	0.12	1,037	0.12	1.56
QuoVadis Limited	1,014	0.11	993	0.11	1.46
ispgateway	984	0.11	984	0.11	-0.64
Snake Oil, Ltd	984	0.11	1,023	0.12	-4.43
Cybertrust	942	0.11	1,034	0.12	-9.48
ips Certification Authority	929	0.11	945	0.11	-2.32
UIC	911	0.10	908	0.10	-0.31
Trusted Secure Certificate Authority	873	0.10	919	0.10	-5.62
none	817	0.09	784	0.09	3.54
GANDI SAS	811	0.09	785	0.09	2.65
Sun Microsystems Inc	779	0.09	1,844	0.21	-58.03
Betrusted Japan Co., Ltd.	702	0.08	790	0.09	-11.71
AusCERT	620	0.07	616	0.07	0.00
Secure Business Services, Inc.	619	0.07	736	0.08	-16.44
National Institute of Informatics	585	0.07	555	0.06	4.73
EUNETIC GmbH	584	0.07	575	0.07	0.91
T-Systems International GmbH	566	0.06	492	0.06	14.30
NetLock Halozatbiztonsagi Kft.	508	0.06	502	0.06	0.55
Government of Korea	505	0.06	472	0.05	6.30
OVH SAS	482	0.05	468	0.05	2.33
Parallels, Inc.	480	0.05	472	0.05	1.04
Autistici/Inventati	475	0.05	450	0.05	4.88
Globe Hosting, Inc.	469	0.05	446	0.05	4.48
Firstserver, Inc	451	0.05	439	0.05	2.07
SYS-CON Media	405	0.05	382	0.04	5.34
OCC	371	0.04	364	0.04	1.27
Apache HTTP Server	355	0.04	363	0.04	-2.83
WTF ALFA	351	0.04	350	0.04	-0.36
FNMT	348	0.04	340	0.04	1.70
TBS INTERNET	344	0.04	340	0.04	0.53
ICP-Brasil	334	0.04	323	0.04	2.74
Internet Widgits Pty Ltd	330	0.04	334	0.04	-1.83
Sonera	327	0.04	335	0.04	-3.01
RBC Hosting Center	304	0.03	294	0.03	2.74
CrossTrust	284	0.03	249	0.03	13.32
T-Systems Enterprise Services GmbH	273	0.03	340	0.04	-20.22
Zimbra Collaboration Suite	263	0.03	252	0.03	3.70
WebSpace-Forum, Thomas Wendt	261	0.03	248	0.03	4.57
SonicWALL, Inc.	250	0.03	248	0.03	0.16
TDC	239	0.03	242	0.03	-1.87
OptimumSSL CA	236	0.03	228	0.03	2.84
Entrust.net	232	0.03	268	0.03	-13.99
XX	231	0.03	232	0.03	-1.07
TAIWAN-CA INC.	230	0.03	211	0.02	8.30
TAIWAN-CA.COM Inc.	220	0.02	228	0.03	-4.13
Getronics PinkRoccade Nederland B.V.	211	0.02	200	0.02	4.82
SiteGround LLC.	188	0.02	178	0.02	4.94
InterWorx	172	0.02	157	0.02	8.85
Ministere education nationale (MENESR)	168	0.02	156	0.02	7.00
WoSign, Inc.	166	0.02	165	0.02	-0.04
Digi-Sign Limited	165	0.02	173	0.02	-5.24
Positive Software	160	0.02	160	0.02	-0.64
SGssl	159	0.02	155	0.02	1.92
Wells Fargo	151	0.02	148	0.02	1.37
SwissSign AG	150	0.02	0	0.00	N/A
My Company Ltd	149	0.02	150	0.02	-1.30
IPS Certification Authority s.l.	145	0.02	159	0.02	-9.39
Universitaet Heidelberg	144	0.02	144	0.02	-0.64

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.