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 doesn't verify the signatures of the certificates it finds, it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA	September 2016 Count	September 2016 %	August 2016 Count	August 2016 %	Growth %
GoDaddy.com, Inc.	595,412	20.17	587,073	20.32	-0.75
COMODO CA Limited	479,874	16.25	472,126	16.34	-0.54
GeoTrust Inc.	390,884	13.24	385,088	13.33	-0.67
DigiCert	328,218	11.12	322,877	11.17	-0.52
GlobalSign nv-sa	208,582	7.06	202,062	6.99	1.01
Symantec Corporation	189,700	6.42	172,184	5.96	7.81
Gandi	88,458	3.00	87,335	3.02	-0.89
thawte, Inc.	71,330	2.42	72,139	2.50	-3.24
Starfield Technologies, Inc.	41,960	1.42	41,357	1.43	-0.72
Let's Encrypt	39,420	1.34	33,859	1.17	13.93
Microsoft Corporation	33,044	1.12	32,096	1.11	0.75
StartCom Ltd.	33,036	1.12	32,919	1.14	-1.80
Unizeto Technologies S.A.	32,796	1.11	32,442	1.12	-1.08
Unknown	28,765	0.97	27,700	0.96	1.62
Internet2	27,857	0.94	27,675	0.96	-1.50
Entrust, Inc.	25,377	0.86	25,209	0.87	-1.49
TERENA	23,275	0.79	23,116	0.80	-1.47
Verizon Enterprise Solutions	23,070	0.78	23,627	0.82	-4.45
Network Solutions L.L.C.	21,841	0.74	21,923	0.76	-2.51
GeoTrust, Inc.	21,819	0.74	24,338	0.84	-12.27
Parallels	17,487	0.59	17,474	0.60	-2.07
Amazon	13,292	0.45	11,070	0.38	17.50
Trustwave Holdings, Inc.	12,554	0.43	12,474	0.43	-1.52
Google Inc	12,504	0.42	11,791	0.41	3.77
SomeOrganization	12,045	0.41	11,922	0.41	-1.13
Verisign	8,302	0.28	9,327	0.32	-12.90
QuoVadis Limited	7,860	0.27	7,648	0.26	0.57
cPanel, Inc.	6,924	0.23	6,020	0.21	12.55
none	6,386	0.22	6,037	0.21	3.51
Thawte, Inc.	6,218	0.21	7,065	0.24	-13.88
WoSign CA Limited	5,896	0.20	5,648	0.20	2.15
Cybertrust Japan Co., Ltd.	5,886	0.20	5,782	0.20	-0.38
AlphaSSL	4,398	0.15	4,473	0.15	-3.78
Comodo Limited	4,063	0.14	4,069	0.14	-2.29
DreamHost	3,993	0.14	3,765	0.13	3.78
SECOM Trust Systems CO.,LTD.	3,632	0.12	3,641	0.13	-2.39
Odin	3,386	0.11	3,020	0.10	9.72
ispgateway	3,144	0.11	3,104	0.11	-0.88
SecureCore	2,866	0.10	2,731	0.09	2.69
Corporation Service Company	2,857	0.10	2,776	0.10	0.71
nazwa.pl sp. z o.o.	2,324	0.08	2,205	0.08	3.14
KDDI Web Communications Inc.	2,301	0.08	2,275	0.08	-1.03
Internet Widgits Pty Ltd	2,030	0.07	1,774	0.06	11.98
Equifax (Geotrust)	1,971	0.07	2,021	0.07	-4.56
Volusion, Inc.	1,945	0.07	2,069	0.07	-8.01
Government of Korea	1,936	0.07	1,895	0.07	-0.03
National Institute of Informatics	1,929	0.07	1,870	0.06	0.94
T-Systems International GmbH	1,755	0.06	1,770	0.06	-2.97
Hostpoint GmbH	1,501	0.05	1,327	0.05	10.69
SSL.com	1,478	0.05	1,394	0.05	3.75
Intermediate Certificate	1,234	0.04	1,304	0.05	-7.40
U.S. Government	1,231	0.04	1,236	0.04	-2.54
DOMENY.PL sp. z o.o	1,196	0.04	1,131	0.04	3.48
EUNETIC GmbH	1,192	0.04	1,174	0.04	-0.64
TAIWAN-CA	1,135	0.04	1,115	0.04	-0.39
Trust Provider B.V.	1,082	0.04	1,014	0.04	4.42
home.pl S.A.	1,030	0.03	293	0.01	244.00
GANDI SAS	977	0.03	1,133	0.04	-15.62
Trend Micro Inc	928	0.03	923	0.03	-1.61
Rede Nacional de Ensino e Pesquisa - RNP	909	0.03	837	0.03	6.27
SwissSign AG	907	0.03	898	0.03	-1.16
NetLock Kft.	907	0.03	886	0.03	0.18
CAcert Inc.	890	0.03	920	0.03	-5.33
Root CA	875	0.03	909	0.03	-5.80
KEYNECTIS	864	0.03	843	0.03	0.29
Comodo CA Limited	856	0.03	891	0.03	-5.99
Globe Hosting, Inc.	681	0.02	689	0.02	-3.28
Pizza-Taxi.de GmbH / CA	660	0.02	502	0.02	28.66
Thawte	647	0.02	661	0.02	-4.22
Zimbra Collaboration Server	625	0.02	645	0.02	-5.18
FNMT-RCM	617	0.02	613	0.02	-1.51
WebSupport, s.r.o.	605	0.02	582	0.02	1.72
TBS INTERNET	600	0.02	599	0.02	-1.98
KPN Corporate Market BV	581	0.02	593	0.02	-4.12
ICP-Brasil	571	0.02	570	0.02	-1.97
Dreamcommerce S.A.	555	0.02	526	0.02	3.25
Actalis S.p.A./03358520967	549	0.02	534	0.02	0.61
Parallels, Inc.	511	0.02	538	0.02	-7.05
ACCV	489	0.02	493	0.02	-2.94
SWsoft, Inc.	462	0.02	448	0.02	0.91
Buypass AS-983163327	403	0.01	374	0.01	5.44
XX	400	0.01	384	0.01	1.93
Firstserver, Inc	376	0.01	387	0.01	-4.93
Snake Oil, Ltd	372	0.01	378	0.01	-3.70
FIDUCIA & GAD IT AG	360	0.01	352	0.01	0.08
CrossTrust	350	0.01	353	0.01	-2.98
Universitaet Stuttgart	328	0.01	323	0.01	-0.63
AC Camerfirma S.A.	317	0.01	315	0.01	-1.52
Default Company Ltd	311	0.01	342	0.01	-11.01
TAIWAN-CA INC.	301	0.01	325	0.01	-9.37
Yandex LLC	294	0.01	301	0.01	-4.42
Apache HTTP Server	294	0.01	299	0.01	-3.78
Dell Inc.	276	0.01	270	0.01	0.03
QuoVadis Trustlink BV	270	0.01	262	0.01	0.84
Site Blindado S.A.	267	0.01	261	0.01	0.11
OVH	261	0.01	255	0.01	0.16
Pavel&Pavel	258	0.01	258	0.01	-2.14
HydrantID (Avalanche Cloud Corporation)	258	0.01	252	0.01	0.19
Karlsruhe Institute of Technology	257	0.01	0	0.00	N/A
Hosting Ukraine LLC	257	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.