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You are viewing an outdated report. The latest version of this report was published on October 1st, 2021

Certificate Authority Market Share Report
January 1st, 2000

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 December 1999
December 1999
November 1999
November 1999
Snake Oil, Ltd3450.572620.4431.22
Esat Net1490.251370.238.38
BusinessNet Danmark1150.191160.19-1.21
CETI s.c.980.16770.1326.83
Corpex Ltd910.15910.15-0.35
BroadBand Communications, Inc.880.1500.00N/A
Media3 Technologies L.L.C.740.12600.1022.91
Netland Internet Services650.11650.11-0.35
PAZ - Editora Multimedia, Lda640.11670.11-4.81
Franke & Partner640.11640.11-0.35
BelSign NV530.09540.09-2.19
Web Hosting520.09590.10-12.17
TAT GmbH520.09540.09-4.04
Onyx Internet520.09520.09-0.35
Equifax Secure Inc480.08340.0640.69
Deutsche Telekom AG400.07130.02206.63
CyberGate Hosting400.07400.07-0.35
Marketing Factory Consulting GmbH390.06380.062.28
DeZines Web Hosting390.06400.07-2.84
DeZines Web Hosting Corporation380.06450.07-15.85
Vest Internett370.06370.06-0.35
MBnet Networking Inc.370.06380.06-2.97
Broadband Communications Inc.370.0600.00N/A
Indra's Net, Inc.350.06340.062.58
Thawte Certification330.05330.05-0.35
Alleanza I.T.B.310.05350.06-11.74
Sparknet S.A.290.05310.05-6.78
For Demo Purposes Only280.05290.05-3.78
University of Florida260.04260.04-0.35
ChilNet S.A.260.04260.04-0.35
ANET St. Louis260.04260.04-0.35
TC TrustCenter for Security in Data Networks GmbH250.04230.048.32
Covalent Technologies, Inc.250.04240.043.81
Kommunikationssysteme ShE GmbH240.04240.04-0.35
Webkeepers Limited230.04250.04-8.32
Superb Internet Corp.220.04220.04-0.35
NothinButNet LLC.220.04240.04-8.65
Domains World Wide220.04120.0282.70
the Internet Outlet210.0300.00N/A
Wantree Internet210.03220.04-4.88
Massachusetts Institute of Technology210.03190.0310.14
Makolab s.c.210.03210.03-0.35
HAL interactive, d.o.o.210.0300.00N/A
Aktiv!NETZ Internet Presentations GmbH200.0300.00N/A
Internet Marketing Services, LLC190.03190.03-0.35
IndyWeb Inc.190.03190.03-0.35
Communique, Inc.190.03230.04-17.68
WebNexus Communications180.03220.04-18.46
U.S. Government180.03180.03-0.35
Netlink, Inc.160.03160.03-0.35
My Company Ltd160.03160.03-0.35
Digital Visions160.03170.03-6.21
CyberGate, Inc.160.03170.03-6.21
Rifin d.o.o.150.02150.02-0.35
Inter Clear Service Ltd150.02240.04-37.72
GlobalSign nv-sa150.02150.02-0.35
ProSalg as140.02150.02-6.99
dgSoft Internet Sevices130.02130.02-0.35
WorldSpice Technologies, Inc.130.02130.02-0.35
University of Economics and BA130.02140.02-7.46
Marketwizz Internet Solutions130.02130.02-0.35
MFM Communication Software, Inc.130.02130.02-0.35
Walrus Internet120.02110.028.71
Sistema S.A120.02130.02-8.01
Internet Solutions120.02120.02-0.35
InterX Technologies120.02120.02-0.35
Fishnet NewMedia120.02120.02-0.35
A+S Systemtechnik120.02120.02-0.35
IPS Seguridad CA110.02120.02-8.65
Dialtone Internet110.0200.00N/A
CLS Internet Services GmbH110.02110.02-0.35
BurstNET Technologies, Inc.110.0200.00N/A
Schell Computersysteme100.0290.0110.73
QDnet ISP100.02100.02-0.35
Powersurge Technologies, Inc.100.02180.03-44.64
Digital Systems100.02100.02-0.35
CompuSource (Pty) Ltd100.02110.02-9.41
Baeurer Informationstechnik100.02100.02-0.35
Virtual Computer Ltd90.0190.01-0.35
Netalia Internet Ltd90.0190.01-0.35
GTE Corporation90.01100.02-10.31
University of Oulu80.0100.00N/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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