Digital certificates are available for Apache-SSL

• Thawte Consulting, at http://www.thawte.com/html/RETAIL/ssl/index.html
• CertiSign Certificadora Digital Ltda., at http://www.certisign.com.br
• IKS GmbH, at http://www.iks-jena.de/produkte/ca/
• BelSign NV/SA, at http://www.belsign.be
• Verisign, Inc. at http://www.verisign.com/products-services/security-services/ssl/index.html
• TC TrustCenter (Germany) at http://www.trustcenter.de/tc-server
• Deutsches Forschungsnetz at http://www.pca.dfn.de/dfnpca/certify/ssl/
• Entrust.net Ltd. at http://www.entrust.net/products/index.htm
• Equifax Inc. at http://www.equifaxsecure.com/ebusinessid/
• GlobalSign NV/SA at http://www.GlobalSign.net
• NetLock Kft. (Hungary) at http://www.netlock.net
• Certplus SA (France) at http://www.certplus.com
• GeoTrust Inc. (USA) at http://www.freessl.com
• register.com (USA) at http://commercelock.register.com
• lanechange.net (Canada) at http://www.lanechange.net/#server certs
• KPN Telecom (The Netherlands) at http://certificaat.kpn.com/
• Tier Networking (USA) at http://www.tier-networking.com/sslcerts/
• ipsCA (Spain) at http://certs.ipsca.com/FreeCertsForApacheSSL/
• CAcert (Australia) at http://www.cacert.org/
• Comodo CA (USA/UK) at http://www.instantssl.com/
• Xolphin (Netherlands) at http://www.sslcertificaten.nl/
• usertrust (USA) at http://www.usertrust.com/
• Networking4All (Netherlands) at http://www.ssl-beveiligd.nl/
• Microsec Kft. (Hungary) at http://www.e-szigno.hu/
• DigiCert Inc. (USA) at http://www.digicert.com