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	March 2015 Count	March 2015 %	February 2015 Count	February 2015 %	Growth %
GoDaddy.com, Inc.	412,794	19.87	399,643	19.62	1.28
COMODO CA Limited	268,757	12.94	259,420	12.74	1.59
GeoTrust, Inc.	222,486	10.71	233,376	11.46	-6.52
GeoTrust Inc.	202,712	9.76	189,617	9.31	4.83
DigiCert	173,488	8.35	171,210	8.41	-0.64
GlobalSign nv-sa	109,553	5.27	104,413	5.13	2.88
Verisign	72,917	3.51	75,656	3.71	-5.49
Gandi	63,777	3.07	62,517	3.07	0.03
Thawte, Inc.	56,404	2.72	58,637	2.88	-5.68
Unknown	38,773	1.87	39,828	1.96	-4.54
Starfield Technologies, Inc.	38,424	1.85	38,067	1.87	-1.02
Network Solutions L.L.C.	30,026	1.45	29,917	1.47	-1.59
StartCom Ltd.	28,608	1.38	28,327	1.39	-0.97
thawte, Inc.	26,869	1.29	22,989	1.13	14.61
Symantec Corporation	26,136	1.26	22,430	1.10	14.26
Entrust, Inc.	21,952	1.06	21,477	1.05	0.23
Internet2	21,746	1.05	21,255	1.04	0.32
TERENA	20,464	0.99	20,096	0.99	-0.15
Verizon Enterprise Solutions	16,589	0.80	15,881	0.78	2.43
AlphaSSL	15,425	0.74	16,300	0.80	-7.21
Microsoft Corporation	14,462	0.70	12,545	0.62	13.04
Parallels	13,985	0.67	13,629	0.67	0.62
Trustwave Holdings, Inc.	10,906	0.53	10,655	0.52	0.37
Volusion, Inc.	8,848	0.43	8,778	0.43	-1.16
SomeOrganization	7,925	0.38	7,761	0.38	0.13
Google Inc	6,760	0.33	6,507	0.32	1.87
Unizeto Technologies S.A.	6,596	0.32	6,464	0.32	0.06
GANDI SAS	4,944	0.24	4,893	0.24	-0.92
Cybertrust Japan Co., Ltd.	4,871	0.23	4,819	0.24	-0.88
Equifax (Geotrust)	4,861	0.23	4,987	0.24	-4.42
Comodo Limited	4,335	0.21	4,547	0.22	-6.51
Cybertrust Inc	4,055	0.20	4,337	0.21	-8.32
SECOM Trust Systems CO.,LTD.	3,932	0.19	3,922	0.19	-1.69
Servision Inc.	2,956	0.14	2,929	0.14	-1.04
none	2,935	0.14	2,857	0.14	0.73
QuoVadis Limited	2,816	0.14	2,679	0.13	3.07
Globe Hosting, Inc.	2,791	0.13	2,779	0.14	-1.52
Comodo CA Limited	2,709	0.13	2,798	0.14	-5.06
ispgateway	2,450	0.12	2,406	0.12	-0.15
Corporation Service Company	1,965	0.09	1,869	0.09	3.09
Thawte	1,853	0.09	2,181	0.11	-16.69
GeoTrust Inc	1,688	0.08	1,855	0.09	-10.77
Root CA	1,552	0.07	1,536	0.08	-0.92
Government of Korea	1,550	0.07	1,551	0.08	-2.01
National Institute of Informatics	1,447	0.07	1,421	0.07	-0.15
T-Systems International GmbH	1,417	0.07	1,395	0.07	-0.40
CAcert Inc.	1,414	0.07	1,445	0.07	-4.05
U.S. Government	1,386	0.07	1,373	0.07	-1.01
Trusted Secure Certificate Authority	1,367	0.07	1,396	0.07	-3.98
Autistici/Inventati	1,355	0.07	1,342	0.07	-0.99
DreamHost	1,326	0.06	1,241	0.06	4.77
Intermediate Certificate	1,174	0.06	1,143	0.06	0.72
EUNETIC GmbH	1,115	0.05	1,103	0.05	-0.88
UIC	1,114	0.05	1,104	0.05	-1.05
TAIWAN-CA INC.	1,070	0.05	1,053	0.05	-0.36
AusCERT	999	0.05	1,043	0.05	-6.08
Register.com	979	0.05	1,047	0.05	-8.31
NetLock Kft.	813	0.04	811	0.04	-1.70
Internet Widgits Pty Ltd	777	0.04	751	0.04	1.45
Parallels, Inc.	724	0.03	723	0.04	-1.81
JSC Regional Network Information Center	693	0.03	667	0.03	1.88
DOMENY.PL Ltd.	660	0.03	669	0.03	-3.26
GlobalSign	636	0.03	645	0.03	-3.31
Trend Micro Inc	630	0.03	609	0.03	1.44
SwissSign AG	629	0.03	605	0.03	1.95
SSL.com	622	0.03	584	0.03	4.44
SWsoft, Inc.	610	0.03	614	0.03	-2.58
KAGOYA JAPAN Inc.	603	0.03	611	0.03	-3.23
SecureTrust Corporation	592	0.03	643	0.03	-9.72
KPN Corporate Market BV	584	0.03	574	0.03	-0.23
ICP-Brasil	571	0.03	559	0.03	0.16
Snake Oil, Ltd	568	0.03	565	0.03	-1.42
KEYNECTIS	521	0.03	492	0.02	3.84
TBS INTERNET	506	0.02	496	0.02	0.03
Zimbra Collaboration Server	494	0.02	483	0.02	0.29
SGssl	486	0.02	493	0.02	-3.33
Firstserver, Inc	467	0.02	472	0.02	-2.98
nazwa.pl S.A.	445	0.02	377	0.02	15.74
CrossTrust	432	0.02	436	0.02	-2.84
HTTPS Management Certificate for SonicWALL (self-signed)	409	0.02	391	0.02	2.57
Alpha	396	0.02	408	0.02	-4.83
ACCV	387	0.02	379	0.02	0.13
Ministere education nationale (MENESR)	368	0.02	372	0.02	-3.00
FNMT-RCM	359	0.02	318	0.02	10.70
GAD EG	345	0.02	337	0.02	0.39
Agencia Catalana de Certificacio (NIF Q-0801176-I)	335	0.02	329	0.02	-0.15
TrustSign Certificadora Digital	334	0.02	349	0.02	-6.16
OCC	333	0.02	339	0.02	-3.68
XX	327	0.02	315	0.02	1.79
FNMT	323	0.02	382	0.02	-17.09
WoSign CA Limited	322	0.02	286	0.01	10.40
Vodafone Group	293	0.01	285	0.01	0.81
DREAMSCAPE NETWORKS FZ-LLC	277	0.01	283	0.01	-4.02
WebSupport, s.r.o.	276	0.01	265	0.01	2.13
INTERWORX LLC	270	0.01	216	0.01	22.57
AC Camerfirma SA	253	0.01	229	0.01	8.33
Pavel&Pavel	250	0.01	247	0.01	-0.75
Apache HTTP Server	250	0.01	236	0.01	3.87
Universitaet Stuttgart	243	0.01	0	0.00	N/A
Zimbra Collaboration Suite	235	0.01	238	0.01	-3.18

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.