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Certificate Authority Market Share Report
May 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 only uses the issuer Organization Name to uniquely identify the issuing CA.

CA April 1999
April 1999
March 1999
March 1999
Esat Net1540.291490.275.92
BusinessNet Danmark1400.261500.27-4.35
CETI s.c.1190.221200.221.63
SGH Internet Division850.16880.16-1.01
Web Hosting810.15840.15-1.18
BelSign NV780.14800.14-0.08
Netland Internet Services720.13720.132.48
Franke & Partner670.12680.120.97
Onyx Internet660.12680.12-0.53
TAT GmbH610.11620.110.83
DeZines Web Hosting610.11670.12-6.70
Communique, Inc.560.10590.11-2.73
Snake Oil, Ltd510.09410.0727.48
Indra's Net, Inc.440.08450.080.20
Marketing Factory Consulting GmbH430.08460.08-4.20
MBnet Networking Inc.420.08420.082.48
Vest Internett A/S410.08410.072.48
Inter Clear Service Ltd390.07400.07-0.08
Alleanza I.T.B.380.07380.072.48
ANET St. Louis330.06350.06-3.38
Covalent Technologies, Inc.320.06260.0526.13
TC TrustCenter for Security in Data Networks GmbH310.06300.055.90
For Demo Purposes Only280.05290.05-1.05
Webkeepers Limited270.05240.0415.29
ChilNet S.A.270.05270.052.48
Thawte Consulting260.05250.056.58
Superb Internet Corp.260.05250.056.58
Kommunikationsysteme ShE GmbH260.05290.05-8.12
Aktiv!NETZ Internet Presentations GmbH260.05270.05-1.31
Wantree Internet250.05330.06-22.36
Internet Marketing Services, LLC250.05250.052.48
Resource Marketing, Inc.240.04240.042.48
the Internet Outlet230.04180.0330.95
IndyWeb Inc.220.04220.042.48
HAL interactive d.o.o.220.04220.042.48
Cybergate Webhosting220.04140.0361.04
Sistema S.A210.04210.042.48
CompuSource (Pty) Ltd200.04190.037.87
Walrus Internet180.03180.032.48
Storm Internet Services180.0300.00N/A
Netlink, Inc.180.03180.032.48
MFM Communication Software, Inc.170.03160.038.89
Digital Visions170.03170.032.48
dgSoft Internet Sevices160.03180.03-8.91
UUNET Internet Africa160.03160.032.48
Thawte Certification160.0300.00N/A
Rifin d.o.o.160.03160.032.48
IPS Seguridad CA160.03160.032.48
Eunet Ireland160.03160.032.48
CLS Internet Services GmbH160.03110.0249.06
InterX Technologies150.03150.032.48
WorldSpice Technologies, Inc.140.03150.03-4.35
University of Economics and BA140.03150.03-4.35
HTML.COM, LC140.0300.00N/A
Massachusetts Institute of Technology130.0200.00N/A
Marketwizz Internet Solutions130.02130.022.48
Human Interaction snc130.02160.03-16.73
Fishnet NewMedia130.02130.022.48
Clever Computers Inc130.02130.022.48
My Company Ltd120.02140.03-12.16
CertiSign Certificadora Digital Ltda120.02160.03-23.14
Baeurer Informationstechnik120.02120.022.48
A+S Systemtechnik120.02120.022.48
Web Anchor, Inc110.02110.022.48
Tartu University110.02110.022.48
QuakeNet Technologies110.02110.022.48
Canadian Consulting & Online Services Inc.110.02110.022.48
Tver State University100.0200.00N/A
Teksupport Pty Ltd100.02100.022.48
QuikNet Inc.100.02130.02-21.17
Comdesign GmbH - Internet Service Center (TM)100.02110.02-6.84
Administrative Office of the U.S. Courts100.0200.00N/A
AS Matti Byrootehnika100.02100.022.48
WOL Online90.02100.02-7.77
TPD GB Limited90.0200.00N/A
Systemberatung Axel Dunkel GmbH90.0200.00N/A
SPS Productions L.L.C.90.0200.00N/A
QDnet ISP90.0200.00N/A
Nevalink Co., Ltd.90.0200.00N/A
Kiskapu Kft90.0200.00N/A
ITnet sp. z o.o.90.02110.02-16.15

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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