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Certificate Authority Market Share Report
August 1st, 1999

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 July 1999
July 1999
June 1999
June 1999
Snake Oil, Ltd1760.34940.1895.10
Esat Net1470.291500.282.12
Web Hosting1400.271190.2222.59
BusinessNet Danmark1330.261370.261.16
CETI s.c.1140.22800.1548.49
BelSign NV740.14750.142.81
SGH Internet Division650.13690.13-1.84
Franke & Partner650.13650.124.20
TAT GmbH590.12610.110.79
Onyx Internet590.12620.12-0.84
DeZines Web Hosting520.10540.100.34
Corpex Ltd490.1000.00N/A
Marketing Factory Consulting GmbH420.08420.084.20
MBnet Networking Inc.410.08310.0637.82
Indra's Net, Inc.370.07400.08-3.61
Alleanza I.T.B.360.07380.07-1.28
Inter Clear Service Ltd320.06390.07-14.50
ANET St. Louis310.06310.064.20
Pointe Communications Corporation290.06320.06-5.57
For Demo Purposes Only290.06290.054.20
Webkeepers Limited270.05270.054.20
Cybergate Webhosting270.05290.05-2.98
University of Florida260.0500.00N/A
Communique, Inc.260.05290.05-6.58
Aktiv!NETZ Internet Presentations GmbH250.05250.054.20
NothinButNet LLC.240.0500.00N/A
Covalent Technologies, Inc.240.05310.06-19.33
TC TrustCenter for Security in Data Networks GmbH230.04230.044.20
Kommunikationsysteme ShE GmbH230.04240.05-0.14
HAL interactive d.o.o.220.04220.044.20
the Internet Outlet210.04190.0415.17
IndyWeb Inc.210.04210.044.20
Superb Internet Corp.190.04200.04-1.01
Sistema S.A190.0400.00N/A
Powersurge Technologies, Inc.190.04190.044.20
Thawte Consulting180.04140.0333.97
Netland Internet Services170.03700.13-74.69
My Company Ltd170.03180.03-1.59
Rifin d.o.o.160.03160.034.20
Netlink, Inc.160.03160.034.20
MFM Communication Software, Inc.160.03160.034.20
Eunet Ireland160.03160.034.20
UUNET Internet Africa150.03160.03-2.31
dgSoft Internet Sevices140.03160.03-8.82
WorldSpice Technologies, Inc.140.03140.034.20
University of Economics and BA140.03140.034.20
InterX Technologies140.03150.03-2.74
IPS Seguridad CA140.03130.0212.22
Walrus Internet130.03150.03-9.69
Massachusetts Institute of Technology130.03150.03-9.69
Marketwizz Internet Solutions130.03130.024.20
Internet Solutions130.03140.03-3.24
IP Ltd130.03130.024.20
GTE Corporation130.03120.0212.89
CompuSource (Pty) Ltd130.03140.03-3.24
CertiSign Certificadora Digital Ltda130.03120.0212.89
CLS Internet Services GmbH130.03130.024.20
A+S Systemtechnik120.02120.024.20
Uni Regensburg110.0290.0227.36
Tartu University110.02110.024.20
Fishnet NewMedia110.02120.02-4.48
Web Anchor, Inc100.02100.024.20
Tver State University100.02100.024.20
QDnet ISP100.0290.0215.78
OPTIMUS-Pro Sp. z o.o.100.02100.024.20
ITnet sp. z o.o.100.0200.00N/A
Digital Systems100.02100.024.20
Canadian Consulting & Online Services Inc.100.02110.02-5.27
Baeurer Informationstechnik100.02110.02-5.27
Administrative Office of the U.S. Courts100.02100.024.20
AS Matti Byrootehnika100.02100.024.20
Virtual Computer Ltd90.0290.024.20
QuakeNet Technologies90.0290.024.20
PAZ - Editora Multimedia, Lda90.02400.08-76.55
Human Interaction snc90.02130.02-27.86
Deutsche Telekom AG90.0200.00N/A
Xtended Internet80.0200.00N/A
Verio Northeast CA80.0200.00N/A
VANZ Management GmbH80.0200.00N/A
University of Oulu80.0200.00N/A
U.S. Government80.0200.00N/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.

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