Microsoft Root Certificate Program Members
Updated February 2005
Microsoft® maintains a list of trusted third-party commercial certificate authorities to enable secure and usable e-commerce for Microsoft® Windows® users. These certificate authorities validate the identity and entitlement of an applicant, and as an output of this process, issue the applicant a digital certificate.
Digital certificates can be used to prove the identity of a remote person or resource, since not all certificate authorities follow the same operational practices. Microsoft uses an independent third-party audit (WebTrust for Certificate Authorities) along with other technical requirements to ensure our customers are have access to trustworthy CAs.
For information on Microsoft Root Certificate Program requirements, see the Microsoft TechNet Web site.
| Member | Secure E-mail | Server Authentication | Client Authentication | Code Signing | Time Stamping |
|---|---|---|---|---|---|
| AOL (https://www.aol.com) | Yes | Yes | Yes | Yes | Yes |
| A-Trust (https://www.a-trust.at) | Yes | Yes | Yes | Yes | Yes |
| Arge Daten (https://www.signatur.rtr.at/de/providers/providers/argedaten.html) | No | Yes | No | No | No |
| AS Sertifitseerimiskeskuse (https://www.sk.ee) | Yes | Yes | Yes | No | No |
| Asociacion Nacional del Notariado Mexicano (https://www.notariadomexicano.org.mx) | Yes | Yes | No | No | No |
| Austria Telekom-Control Commission (https://www.signatur.rtr.at) | Yes | Yes | Yes | No | No |
| Autoridade Certificadora Raiz Brasileira (https://www.icpbrasil.gov.br) | Yes | Yes | Yes | No | No |
| Autoridad de Certificacion Firmaprofesional | Yes | Yes | Yes | Yes | Yes |
| Baltimore (https://www.baltimore.com) | Yes | Yes | Yes | Yes | No |
| Belgacom E-Trust (https://www.e-trust.be) | Yes | Yes | Yes | Yes | Yes |
| CC Signet (https://www.signet.pl) | Yes | Yes | Yes | Yes | Yes |
| CAMERFIRMA (https://www.camerfirma.com) | Yes | Yes | Yes | Yes | Yes |
| Certicámara S.A. (https://www.certicamara.com/) | Yes | Yes | Yes | No | No |
| Certisign (https://www.certisign.com.br/) | Yes | Yes | No | No | No |
| CertPlus (https://www.certplus.com) | Yes | Yes | Yes | Yes | No |
| Colegio de Registradores | Yes | Yes | Yes | No | No |
| Comodo Group (https://www.comodogroup.com/) | Yes | Yes | Yes | Yes | Yes |
| ComSign (https://www.ComSign.co.il) | Yes | Yes | Yes | Yes | Yes |
| Correo | No | Yes | No | No | No |
| Deutsche Telekom (https://www.telekom.de) | Yes | Yes | No | No | No |
| DST (https://www.digsigtrust.com/) | Yes | Yes | No | No | No |
| Entrust (https://www.entrust.com/certificate_services/index.htm) | Yes | Yes | Yes | Yes | Yes |
| eSign (https://www.esign.com.au/) | Yes | No | Yes | No | Yes |
| EUnet International (https://www.eunet.fi/) | Yes | Yes | No | No | No |
| FESTE (https://www.feste.org/) | Yes | Yes | No | No | Yes |
| First Data Digital Certificates (https://www.firstdata.com/index.jsp) | Yes | No | Yes | Yes | Yes |
| FNMT (https://www.ceres.fnmt.es/) | Yes | Yes | No | No | No |
| Gatekeeper Root CA (https://www.agimo.gov.au/infrastructure/gatekeeper) | Yes | No | Yes | No | Yes |
| GeoTrust (https://www.geotrust.com) | Yes | Yes | Yes | Yes | Yes |
| GlobalSign (https://www.globalsign.com/) | Yes | Yes | Yes | Yes | Yes |
| GoDaddy (https://www.godaddy.com) | Yes | Yes | Yes | Yes | No |
| Hongkong Post (https://www.hongkongpost.gov.hk/product/cps/ecert/index.html)) | Yes | Yes | Yes | No | Yes |
| IPS SERVIDORES (https://www.ips.es/) | Yes | Yes | Yes | No | No |
| KMD (https://www.kmd-ca.dk) | Yes | No | Yes | No | Yes |
| NetLock (https://www.netlock.hu/) | Yes | No | Yes | No | No |
| Post.Trust (https://www.post.trust.ie/) | Yes | Yes | Yes | No | Yes |
| PTT Post (https://www.ptt-post.nl) | Yes | Yes | No | No | No |
| Quovadis (https://www.quovadis.bm/) | Yes | Yes | Yes | Yes | Yes |
| RSA (https://www.rsasecurity.com/) | Yes | Yes | Yes | Yes | Yes |
| Saunalahden Serveri (https://www.saunalahti.fi/) | No | Yes | No | No | No |
| SECOM Trust.net (https://www.secomtrust.net) | Yes | Yes | Yes | Yes | Yes |
| SecureNet (https://www.securenetasia.com/) | Yes | Yes | Yes | No | No |
| SecureSign (https://www2.jcsinc.co.jp) | No | Yes | No | No | No |
| Serasa (https://www.serasa.com/) | Yes | Yes | Yes | Yes | Yes |
| SIA (https://ca.sia.it/) | No | Yes | No | No | No |
| Sonera (https://www.sonera.com/) | Yes | Yes | Yes | Yes | Yes |
| Spanish Property & Commerce Registry (https://www.registradores.org)) | Yes | Yes | Yes | No | No |
| TC TrustCenter (https://www.trustcenter.de/) | Yes | Yes | No | No | No |
| TDC (https://www.tdc.dk) | Yes | Yes | Yes | Yes | Yes |
| Thawte (https://www.thawte.com/) | Yes | Yes | Yes | Yes | Yes |
| Trustis Limited (https://www.trustis.com) | Yes | Yes | Yes | No | No |
| TW Government Root Certification Authority | Yes | Yes | Yes | Yes | Yes |
| Unizeto Certum (https://www.certum.pl) | Yes | Yes | Yes | Yes | Yes |
| UserTRUST (https://www.usertrust.com/) | Yes | Yes | No | Yes | No |
| ValiCert (https://www.valicert.com/) | Yes | Yes | No | No | No |
| Verisign (https://www.verisign.com/) | Yes | Yes | Yes | Yes | Yes |
| Visa | Yes | Yes | Yes | No | No |
| Wells Fargo Root Certificate Authority (https://www.wellsfargo.com/certpolicy) | Yes | Yes | Yes | No | No |
| XRamp (https://www.xramp.com) | Yes | Yes | Yes | Yes | Yes |