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	April 2015 Count	April 2015 %	March 2015 Count	March 2015 %	Growth %
GoDaddy.com, Inc.	424,382	19.88	412,794	19.87	0.05
COMODO CA Limited	284,287	13.32	268,757	12.94	2.94
GeoTrust Inc.	224,620	10.52	202,712	9.76	7.83
DigiCert	200,305	9.38	173,488	8.35	12.36
GeoTrust, Inc.	190,580	8.93	222,486	10.71	-16.64
GlobalSign nv-sa	115,951	5.43	109,553	5.27	3.00
Verisign	68,169	3.19	72,917	3.51	-9.02
Gandi	65,427	3.07	63,777	3.07	-0.17
Thawte, Inc.	52,437	2.46	56,404	2.72	-9.53
Unknown	38,946	1.82	38,773	1.87	-2.25
Starfield Technologies, Inc.	38,639	1.81	38,424	1.85	-2.14
Symantec Corporation	31,316	1.47	26,136	1.26	16.60
thawte, Inc.	30,798	1.44	26,869	1.29	11.55
Network Solutions L.L.C.	30,121	1.41	30,026	1.45	-2.38
StartCom Ltd.	28,803	1.35	28,608	1.38	-2.02
Internet2	22,179	1.04	21,746	1.05	-0.75
Entrust, Inc.	22,134	1.04	21,952	1.06	-1.88
TERENA	20,852	0.98	20,464	0.99	-0.84
Verizon Enterprise Solutions	18,098	0.85	16,589	0.80	6.17
Microsoft Corporation	14,886	0.70	14,462	0.70	0.17
Parallels	14,570	0.68	13,985	0.67	1.39
AlphaSSL	14,156	0.66	15,425	0.74	-10.69
Trustwave Holdings, Inc.	11,114	0.52	10,906	0.53	-0.83
Volusion, Inc.	8,628	0.40	8,848	0.43	-5.10
SomeOrganization	7,985	0.37	7,925	0.38	-1.95
Google Inc	7,060	0.33	6,760	0.33	1.63
Unizeto Technologies S.A.	6,849	0.32	6,596	0.32	1.05
Cybertrust Japan Co., Ltd.	4,902	0.23	4,871	0.23	-2.07
GANDI SAS	4,865	0.23	4,944	0.24	-4.24
Equifax (Geotrust)	4,501	0.21	4,861	0.23	-9.89
Comodo Limited	4,392	0.21	4,335	0.21	-1.41
SECOM Trust Systems CO.,LTD.	3,896	0.18	3,932	0.19	-3.58
Cybertrust Inc	3,779	0.18	4,055	0.20	-9.31
none	3,137	0.15	2,935	0.14	4.01
Servision Inc.	3,015	0.14	2,956	0.14	-0.74
QuoVadis Limited	2,962	0.14	2,816	0.14	2.36
Globe Hosting, Inc.	2,797	0.13	2,791	0.13	-2.48
Comodo CA Limited	2,610	0.12	2,709	0.13	-6.24
ispgateway	2,520	0.12	2,450	0.12	0.10
Corporation Service Company	2,175	0.10	1,965	0.09	7.71
Thawte	1,795	0.08	1,853	0.09	-5.73
Government of Korea	1,595	0.07	1,550	0.07	0.14
nazwa.pl S.A.	1,522	0.07	445	0.02	232.84
Root CA	1,522	0.07	1,552	0.07	-4.57
T-Systems International GmbH	1,472	0.07	1,417	0.07	1.09
National Institute of Informatics	1,464	0.07	1,447	0.07	-1.54
GeoTrust Inc	1,456	0.07	1,688	0.08	-16.06
DreamHost	1,433	0.07	1,326	0.06	5.17
CAcert Inc.	1,400	0.07	1,414	0.07	-3.65
U.S. Government	1,398	0.07	1,386	0.07	-1.84
Autistici/Inventati	1,370	0.06	1,355	0.07	-1.61
Trusted Secure Certificate Authority	1,268	0.06	1,367	0.07	-9.73
Intermediate Certificate	1,222	0.06	1,174	0.06	1.29
EUNETIC GmbH	1,127	0.05	1,115	0.05	-1.64
UIC	1,118	0.05	1,114	0.05	-2.34
TAIWAN-CA INC.	1,054	0.05	1,070	0.05	-4.14
AusCERT	947	0.04	999	0.05	-7.75
Register.com	862	0.04	979	0.05	-14.32
NetLock Kft.	800	0.04	813	0.04	-4.24
Internet Widgits Pty Ltd	786	0.04	777	0.04	-1.56
Parallels, Inc.	724	0.03	724	0.03	-2.69
SSL.com	687	0.03	622	0.03	7.48
JSC Regional Network Information Center	663	0.03	693	0.03	-6.90
Trend Micro Inc	660	0.03	630	0.03	1.95
SwissSign AG	659	0.03	629	0.03	1.96
DOMENY.PL Ltd.	655	0.03	660	0.03	-3.42
GlobalSign	625	0.03	636	0.03	-4.37
KPN Corporate Market BV	598	0.03	584	0.03	-0.35
KAGOYA JAPAN Inc.	588	0.03	603	0.03	-5.11
SWsoft, Inc.	582	0.03	610	0.03	-7.15
ICP-Brasil	573	0.03	571	0.03	-2.34
KEYNECTIS	556	0.03	521	0.03	3.85
Snake Oil, Ltd	552	0.03	568	0.03	-5.43
SecureTrust Corporation	546	0.03	592	0.03	-10.25
TBS INTERNET	509	0.02	506	0.02	-2.11
Zimbra Collaboration Server	504	0.02	494	0.02	-0.72
SGssl	483	0.02	486	0.02	-3.29
Firstserver, Inc	466	0.02	467	0.02	-2.89
CrossTrust	431	0.02	432	0.02	-2.91
WoSign CA Limited	414	0.02	322	0.02	25.12
HTTPS Management Certificate for SonicWALL (self-signed)	409	0.02	409	0.02	-2.69
ACCV	405	0.02	387	0.02	1.84
FNMT-RCM	393	0.02	359	0.02	6.53
Alpha	389	0.02	396	0.02	-4.41
Ministere education nationale (MENESR)	384	0.02	368	0.02	1.55
XX	350	0.02	327	0.02	4.16
GAD EG	350	0.02	345	0.02	-1.27
Agencia Catalana de Certificacio (NIF Q-0801176-I)	344	0.02	335	0.02	-0.07
OCC	338	0.02	333	0.02	-1.22
TrustSign Certificadora Digital	336	0.02	334	0.02	-2.10
DOMENY.PL sp. z o.o	322	0.02	0	0.00	N/A
FNMT	290	0.01	323	0.02	-12.63
Vodafone Group	284	0.01	293	0.01	-5.67
WebSupport, s.r.o.	281	0.01	276	0.01	-0.92
INTERWORX LLC	272	0.01	270	0.01	-1.96
DREAMSCAPE NETWORKS FZ-LLC	269	0.01	277	0.01	-5.50
AC Camerfirma SA	259	0.01	253	0.01	-0.38
Pavel&Pavel	251	0.01	250	0.01	-2.30
MyCompany	250	0.01	0	0.00	N/A
Universitaet Stuttgart	248	0.01	243	0.01	-0.68

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.