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 2015 Count	September 2015 %	August 2015 Count	August 2015 %	Growth %
GoDaddy.com, Inc.	495,275	20.79	480,615	20.66	0.64
GeoTrust Inc.	344,955	14.48	320,055	13.76	5.26
COMODO CA Limited	335,313	14.07	322,589	13.86	1.51
DigiCert	245,301	10.30	234,570	10.08	2.13
GlobalSign nv-sa	133,518	5.60	127,495	5.48	2.28
GeoTrust, Inc.	88,984	3.74	108,630	4.67	-20.00
Gandi	74,117	3.11	72,175	3.10	0.29
Symantec Corporation	62,874	2.64	57,678	2.48	6.46
thawte, Inc.	52,830	2.22	48,694	2.09	5.96
Starfield Technologies, Inc.	39,071	1.64	38,277	1.65	-0.31
Verisign	37,846	1.59	42,872	1.84	-13.79
StartCom Ltd.	32,005	1.34	31,120	1.34	0.44
Unknown	31,984	1.34	41,178	1.77	-24.14
Thawte, Inc.	29,868	1.25	34,135	1.47	-14.55
Unizeto Technologies S.A.	29,614	1.24	29,112	1.25	-0.65
Microsoft Corporation	27,376	1.15	16,919	0.73	58.02
Internet2	24,667	1.04	23,828	1.02	1.10
Network Solutions L.L.C.	24,157	1.01	26,969	1.16	-12.52
Entrust, Inc.	23,418	0.98	23,044	0.99	-0.75
Verizon Enterprise Solutions	23,096	0.97	23,302	1.00	-3.20
TERENA	22,091	0.93	21,914	0.94	-1.55
Parallels	16,507	0.69	16,066	0.69	0.34
Trustwave Holdings, Inc.	12,116	0.51	11,822	0.51	0.09
AlphaSSL	9,424	0.40	10,490	0.45	-12.26
SomeOrganization	9,113	0.38	8,658	0.37	2.79
Google Inc	8,434	0.35	8,100	0.35	1.69
Volusion, Inc.	6,261	0.26	6,916	0.30	-11.59
Cybertrust Japan Co., Ltd.	5,126	0.22	5,117	0.22	-2.17
QuoVadis Limited	4,466	0.19	4,053	0.17	7.61
Comodo Limited	4,207	0.18	4,244	0.18	-3.19
GANDI SAS	3,928	0.16	4,244	0.18	-9.61
none	3,893	0.16	3,728	0.16	1.98
SECOM Trust Systems CO.,LTD.	3,887	0.16	3,890	0.17	-2.41
WoSign CA Limited	3,597	0.15	1,086	0.05	223.47
Equifax (Geotrust)	3,072	0.13	3,386	0.15	-11.40
Corporation Service Company	2,975	0.12	2,818	0.12	3.10
ispgateway	2,744	0.12	2,687	0.12	-0.27
Servision Inc.	2,523	0.11	2,687	0.12	-8.30
Globe Hosting, Inc.	2,501	0.10	2,811	0.12	-13.11
DreamHost	1,861	0.08	1,804	0.08	0.75
nazwa.pl S.A.	1,809	0.08	1,848	0.08	-4.40
Government of Korea	1,785	0.07	1,744	0.07	-0.04
National Institute of Informatics	1,603	0.07	1,550	0.07	1.00
Thawte	1,569	0.07	1,609	0.07	-4.77
T-Systems International GmbH	1,568	0.07	1,537	0.07	-0.37
Comodo CA Limited	1,499	0.06	1,586	0.07	-7.70
Autistici/Inventati	1,454	0.06	1,438	0.06	-1.25
Root CA	1,443	0.06	1,446	0.06	-2.54
CAcert Inc.	1,435	0.06	1,430	0.06	-2.00
Intermediate Certificate	1,425	0.06	1,376	0.06	1.14
U.S. Government	1,383	0.06	1,368	0.06	-1.27
UIC	1,141	0.05	1,137	0.05	-1.99
EUNETIC GmbH	1,141	0.05	1,140	0.05	-2.25
SSL.com	972	0.04	881	0.04	7.75
Internet Widgits Pty Ltd	912	0.04	853	0.04	4.42
TAIWAN-CA INC.	870	0.04	927	0.04	-8.34
NetLock Kft.	814	0.03	844	0.04	-5.81
DOMENY.PL sp. z o.o	798	0.03	678	0.03	14.95
SwissSign AG	776	0.03	752	0.03	0.78
Trend Micro Inc	742	0.03	723	0.03	0.23
Trusted Secure Certificate Authority	708	0.03	819	0.04	-15.57
Parallels, Inc.	690	0.03	696	0.03	-3.18
KEYNECTIS	685	0.03	680	0.03	-1.62
KDDI Web Communications Inc.	671	0.03	472	0.02	38.84
KPN Corporate Market BV	668	0.03	654	0.03	-0.25
ICP-Brasil	620	0.03	610	0.03	-0.74
AusCERT	607	0.03	643	0.03	-7.81
Cybertrust Inc	593	0.02	652	0.03	-11.18
GeoTrust Inc	592	0.02	735	0.03	-21.34
Zimbra Collaboration Server	584	0.02	557	0.02	2.40
Register.com	574	0.02	621	0.03	-9.73
SWsoft, Inc.	556	0.02	549	0.02	-1.09
TBS INTERNET	530	0.02	512	0.02	1.09
Snake Oil, Ltd	509	0.02	518	0.02	-4.04
KAGOYA JAPAN Inc.	507	0.02	543	0.02	-8.81
FNMT-RCM	499	0.02	485	0.02	0.48
HTTPS Management Certificate for SonicWALL (self-signed)	464	0.02	456	0.02	-0.63
Rede Nacional de Ensino e Pesquisa - RNP	457	0.02	370	0.02	20.63
ACCV	457	0.02	451	0.02	-1.04
Firstserver, Inc	454	0.02	456	0.02	-2.77
DOMENY.PL Ltd.	453	0.02	524	0.02	-15.57
SGssl	444	0.02	468	0.02	-7.35
GlobalSign	435	0.02	520	0.02	-18.30
TAIWAN-CA	428	0.02	343	0.01	21.86
CrossTrust	407	0.02	411	0.02	-3.29
JSC Regional Network Information Center	381	0.02	457	0.02	-18.58
GAD EG	379	0.02	376	0.02	-1.56
Agencia Catalana de Certificacio (NIF Q-0801176-I)	370	0.02	364	0.02	-0.73
XX	359	0.02	371	0.02	-5.50
TurnKey Linux	356	0.01	343	0.01	1.36
WebSupport, s.r.o.	342	0.01	333	0.01	0.30
OCC	336	0.01	339	0.01	-3.20
Dreamcommerce S.A.	323	0.01	316	0.01	-0.18
Ministere education nationale (MENESR)	309	0.01	308	0.01	-2.02
SecureTrust Corporation	302	0.01	346	0.01	-14.76
Universitaet Stuttgart	277	0.01	268	0.01	0.94
MyCompany	264	0.01	0	0.00	N/A
AC Camerfirma SA	264	0.01	273	0.01	-5.56
Pavel&Pavel	258	0.01	255	0.01	-1.19
Alpha	247	0.01	265	0.01	-8.97

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.