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 2015 Count	October 2015 %	September 2015 Count	September 2015 %	Growth %
GoDaddy.com, Inc.	507,342	20.99	495,275	20.79	0.99
COMODO CA Limited	358,360	14.83	335,313	14.07	5.36
GeoTrust Inc.	356,226	14.74	344,955	14.48	1.81
DigiCert	250,448	10.36	245,301	10.30	0.65
GlobalSign nv-sa	128,503	5.32	133,518	5.60	-5.12
GeoTrust, Inc.	75,661	3.13	88,984	3.74	-16.17
Gandi	75,551	3.13	74,117	3.11	0.49
Symantec Corporation	67,037	2.77	62,874	2.64	5.11
thawte, Inc.	55,673	2.30	52,830	2.22	3.89
Starfield Technologies, Inc.	39,638	1.64	39,071	1.64	0.02
Verisign	33,627	1.39	37,846	1.59	-12.40
StartCom Ltd.	32,344	1.34	32,005	1.34	-0.37
Unknown	31,108	1.29	31,984	1.34	-4.11
Unizeto Technologies S.A.	30,076	1.24	29,614	1.24	0.12
Microsoft Corporation	27,743	1.15	27,376	1.15	-0.09
Thawte, Inc.	26,130	1.08	29,868	1.25	-13.75
Internet2	24,735	1.02	24,667	1.04	-1.14
Verizon Enterprise Solutions	23,680	0.98	23,096	0.97	1.08
Entrust, Inc.	23,653	0.98	23,418	0.98	-0.43
Network Solutions L.L.C.	23,620	0.98	24,157	1.01	-3.61
TERENA	22,476	0.93	22,091	0.93	0.30
Parallels	16,808	0.70	16,507	0.69	0.38
Trustwave Holdings, Inc.	12,243	0.51	12,116	0.51	-0.38
SomeOrganization	9,179	0.38	9,113	0.38	-0.70
Google Inc	8,628	0.36	8,434	0.35	0.85
AlphaSSL	8,403	0.35	9,424	0.40	-12.10
Volusion, Inc.	5,671	0.23	6,261	0.26	-10.70
Cybertrust Japan Co., Ltd.	5,196	0.22	5,126	0.22	-0.07
QuoVadis Limited	4,725	0.20	4,466	0.19	4.30
Comodo Limited	4,192	0.17	4,207	0.18	-1.77
none	4,047	0.17	3,893	0.16	2.49
SECOM Trust Systems CO.,LTD.	3,760	0.16	3,887	0.16	-4.64
WoSign CA Limited	3,730	0.15	3,597	0.15	2.23
GANDI SAS	3,707	0.15	3,928	0.16	-6.96
Corporation Service Company	3,057	0.13	2,975	0.12	1.30
Equifax (Geotrust)	2,935	0.12	3,072	0.13	-5.81
ispgateway	2,772	0.11	2,744	0.12	-0.41
Globe Hosting, Inc.	2,441	0.10	2,501	0.10	-3.78
Servision Inc.	2,387	0.10	2,523	0.11	-6.73
nazwa.pl S.A.	1,997	0.08	1,809	0.08	8.83
DreamHost	1,958	0.08	1,861	0.08	3.72
Government of Korea	1,817	0.08	1,785	0.07	0.35
National Institute of Informatics	1,655	0.07	1,603	0.07	1.78
T-Systems International GmbH	1,566	0.06	1,568	0.07	-1.54
Intermediate Certificate	1,472	0.06	1,425	0.06	1.84
Autistici/Inventati	1,465	0.06	1,454	0.06	-0.67
Root CA	1,446	0.06	1,443	0.06	-1.21
Comodo CA Limited	1,442	0.06	1,499	0.06	-5.16
CAcert Inc.	1,419	0.06	1,435	0.06	-2.51
U.S. Government	1,366	0.06	1,383	0.06	-2.63
UIC	1,142	0.05	1,141	0.05	-1.33
EUNETIC GmbH	1,142	0.05	1,141	0.05	-1.33
SSL.com	1,017	0.04	972	0.04	3.15
Thawte	1,008	0.04	1,569	0.07	-36.66
Internet Widgits Pty Ltd	923	0.04	912	0.04	-0.23
DOMENY.PL sp. z o.o	860	0.04	798	0.03	6.25
KDDI Web Communications Inc.	851	0.04	671	0.03	25.03
SwissSign AG	817	0.03	776	0.03	3.79
TAIWAN-CA INC.	810	0.03	870	0.04	-8.21
NetLock Kft.	794	0.03	814	0.03	-3.84
Trend Micro Inc	778	0.03	742	0.03	3.37
KEYNECTIS	702	0.03	685	0.03	1.03
KPN Corporate Market BV	678	0.03	668	0.03	0.06
Parallels, Inc.	671	0.03	690	0.03	-4.13
Trusted Secure Certificate Authority	646	0.03	708	0.03	-10.05
ICP-Brasil	634	0.03	620	0.03	0.81
Zimbra Collaboration Server	598	0.02	584	0.02	0.95
SWsoft, Inc.	538	0.02	556	0.02	-4.61
TBS INTERNET	522	0.02	530	0.02	-2.90
Register.com	519	0.02	574	0.02	-10.86
Cybertrust Inc	517	0.02	593	0.02	-14.05
FNMT-RCM	514	0.02	499	0.02	1.55
AusCERT	510	0.02	607	0.03	-17.17
Rede Nacional de Ensino e Pesquisa - RNP	503	0.02	457	0.02	8.51
TAIWAN-CA	498	0.02	428	0.02	14.71
SecureCore	492	0.02	0	0.00	N/A
Snake Oil, Ltd	484	0.02	509	0.02	-6.26
GeoTrust Inc	483	0.02	592	0.02	-19.57
HTTPS Management Certificate for SonicWALL (self-signed)	482	0.02	464	0.02	2.41
KAGOYA JAPAN Inc.	475	0.02	507	0.02	-7.64
ACCV	464	0.02	457	0.02	0.10
Firstserver, Inc	445	0.02	454	0.02	-3.37
DOMENY.PL Ltd.	418	0.02	453	0.02	-9.03
SGssl	404	0.02	444	0.02	-10.30
CrossTrust	401	0.02	407	0.02	-2.87
GAD EG	383	0.02	379	0.02	-0.37
GlobalSign	378	0.02	435	0.02	-14.33
Agencia Catalana de Certificacio (NIF Q-0801176-I)	372	0.02	370	0.02	-0.88
XX	363	0.02	359	0.02	-0.32
JSC Regional Network Information Center	357	0.01	381	0.02	-7.62
WebSupport, s.r.o.	351	0.01	342	0.01	1.18
TurnKey Linux	349	0.01	356	0.01	-3.35
Dreamcommerce S.A.	340	0.01	323	0.01	3.77
OCC	297	0.01	336	0.01	-12.86
Universitaet Stuttgart	282	0.01	277	0.01	0.37
SecureTrust Corporation	276	0.01	302	0.01	-9.90
Ministere education nationale (MENESR)	273	0.01	309	0.01	-12.90
MyCompany	272	0.01	264	0.01	1.57
Pavel&Pavel	258	0.01	258	0.01	-1.41
AC Camerfirma SA	257	0.01	264	0.01	-4.03

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.