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	June 2017 Count	June 2017 %	May 2017 Count	May 2017 %	Growth %
DigiCert	2,623,870	46.88	2,629,025	46.67	0.46
GoDaddy.com, Inc.	678,643	12.13	683,285	12.13	-0.03
COMODO CA Limited	542,752	9.70	557,582	9.90	-2.02
GeoTrust Inc.	417,867	7.47	426,304	7.57	-1.34
GlobalSign nv-sa	263,878	4.71	261,999	4.65	1.38
Let's Encrypt	145,329	2.60	141,207	2.51	3.59
Symantec Corporation	124,627	2.23	126,350	2.24	-0.72
Gandi	95,591	1.71	95,708	1.70	0.53
thawte, Inc.	71,951	1.29	73,130	1.30	-0.97
Starfield Technologies, Inc.	46,020	0.82	47,158	0.84	-1.77
Amazon	40,730	0.73	39,400	0.70	4.05
Unknown	38,661	0.69	38,995	0.69	-0.21
cPanel, Inc.	36,212	0.65	34,113	0.61	6.85
Microsoft Corporation	36,118	0.65	36,051	0.64	0.84
Unizeto Technologies S.A.	35,668	0.64	35,525	0.63	1.06
Internet2	29,405	0.53	29,847	0.53	-0.83
Entrust, Inc.	26,569	0.47	26,624	0.47	0.45
TERENA	25,359	0.45	25,485	0.45	0.16
Google Inc	23,980	0.43	23,984	0.43	0.64
Network Solutions L.L.C.	20,034	0.36	20,492	0.36	-1.59
StartCom Ltd.	19,064	0.34	20,596	0.37	-6.83
Parallels	18,236	0.33	18,761	0.33	-2.16
Trustwave Holdings, Inc.	13,546	0.24	13,878	0.25	-1.75
SomeOrganization	13,098	0.23	13,168	0.23	0.12
none	10,407	0.19	10,468	0.19	0.07
GeoTrust, Inc.	9,316	0.17	10,087	0.18	-7.04
QuoVadis Limited	9,043	0.16	9,104	0.16	-0.02
Cybertrust Japan Co., Ltd.	7,071	0.13	7,046	0.13	1.01
DreamHost	7,020	0.13	7,018	0.12	0.68
Odin	6,781	0.12	6,864	0.12	-0.56
SecureCore	5,453	0.10	5,399	0.10	1.66
home.pl S.A.	4,164	0.07	4,004	0.07	4.68
Internet Widgits Pty Ltd	4,143	0.07	4,152	0.07	0.44
Comodo Limited	3,775	0.07	4,036	0.07	-5.85
Hostpoint GmbH	3,652	0.07	3,668	0.07	0.22
nazwa.pl sp. z o.o.	3,573	0.06	3,614	0.06	-0.49
SSL.com	3,535	0.06	3,589	0.06	-0.86
SECOM Trust Systems CO.,LTD.	3,418	0.06	3,463	0.06	-0.65
ispgateway	3,403	0.06	3,371	0.06	1.61
Plesk	2,856	0.05	2,450	0.04	17.34
Corporation Service Company	2,818	0.05	3,165	0.06	-10.38
CloudFlare, Inc.	2,780	0.05	2,769	0.05	1.06
KDDI Web Communications Inc.	2,655	0.05	2,665	0.05	0.28
Verisign	2,491	0.04	2,716	0.05	-7.68
Thawte, Inc.	2,457	0.04	2,665	0.05	-7.20
Trust Provider B.V.	2,210	0.04	2,223	0.04	0.07
WoSign CA Limited	2,204	0.04	4,664	0.08	-52.43
io.ua	2,112	0.04	2,112	0.04	0.66
National Institute of Informatics	2,097	0.04	2,108	0.04	0.13
Government of Korea	2,014	0.04	2,071	0.04	-2.11
Pizza-Taxi.de GmbH / CA	1,909	0.03	1,909	0.03	0.66
T-Systems International GmbH	1,666	0.03	1,696	0.03	-1.12
Equifax (Geotrust)	1,581	0.03	1,632	0.03	-2.49
TAIWAN-CA	1,497	0.03	1,544	0.03	-2.41
DOMENY.PL sp. z o.o	1,432	0.03	1,486	0.03	-3.00
WebSupport, s.r.o.	1,307	0.02	1,314	0.02	0.12
AlphaSSL	1,241	0.02	1,333	0.02	-6.29
SwissSign AG	1,229	0.02	1,196	0.02	3.43
EUNETIC GmbH	1,201	0.02	1,218	0.02	-0.75
Rede Nacional de Ensino e Pesquisa - RNP	1,184	0.02	1,196	0.02	-0.35
UIC	1,167	0.02	1,169	0.02	0.48
KEYNECTIS	1,163	0.02	1,164	0.02	0.57
Actalis S.p.A./03358520967	1,082	0.02	1,071	0.02	1.69
U.S. Government	1,079	0.02	1,115	0.02	-2.59
NetLock Kft.	1,010	0.02	1,013	0.02	0.36
Volusion, Inc.	920	0.02	988	0.02	-6.27
Default Company Ltd	917	0.02	850	0.02	8.59
Hosting Ukraine LLC	916	0.02	917	0.02	0.55
AC Camerfirma S.A.	857	0.02	822	0.01	4.94
Japan Registry Services Co., Ltd.	838	0.01	784	0.01	7.59
Dreamcommerce S.A.	808	0.01	815	0.01	-0.21
Trend Micro Inc	736	0.01	782	0.01	-5.26
CAcert Inc.	669	0.01	659	0.01	2.18
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	667	0.01	583	0.01	15.16
Globe Hosting, Inc.	662	0.01	663	0.01	0.50
TBS INTERNET	628	0.01	646	0.01	-2.15
FNMT-RCM	622	0.01	632	0.01	-0.94
Intermediate Certificate	591	0.01	612	0.01	-2.80
Zimbra Collaboration Server	587	0.01	594	0.01	-0.53
Buypass AS-983163327	584	0.01	576	0.01	2.05
Verizon Enterprise Solutions	566	0.01	660	0.01	-13.68
Nijimo, Inc.	551	0.01	483	0.01	14.83
WEDOS Internet, a.s.	549	0.01	544	0.01	1.58
Root CA	547	0.01	584	0.01	-5.72
ACCV	527	0.01	522	0.01	1.62
Test Self SSL Company	521	0.01	526	0.01	-0.30
Comodo CA Limited	517	0.01	527	0.01	-1.25
XX	507	0.01	535	0.01	-4.61
ICP-Brasil	503	0.01	512	0.01	-1.11
Thawte	496	0.01	513	0.01	-2.68
Webhosting	474	0.01	471	0.01	1.30
HydrantID (Avalanche Cloud Corporation)	463	0.01	464	0.01	0.44
Apache HTTP Server	434	0.01	437	0.01	-0.03
Parallels, Inc.	393	0.01	407	0.01	-2.81
SWsoft, Inc.	392	0.01	412	0.01	-4.23
AffirmTrust	387	0.01	353	0.01	10.35
Universitaet Stuttgart	363	0.01	367	0.01	-0.44
KPN Corporate Market BV	349	0.01	389	0.01	-9.69
FIDUCIA & GAD IT AG	340	0.01	354	0.01	-3.32
Yandex LLC	338	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.