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Certisign

Certisign Certificadora Digital S.A. is a Brazilian company based in São Paulo that provides public key infrastructure (PKI) products to financial institutions, governments, and enterprises. Certisign also provides a variety of security and consulting services ranging from digital certificates, authentication, and managed Digital Identity.2 It was founded in 1996.1 It employed 600 people.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1996Founded1

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Certisign Certificadora Digital S.A. is a Brazilian company based in São Paulo that provides public key infrastructure (PKI) products to financial institutions, governments, and enterprises. Certisign also provides a variety of security and consulting services ranging from digital certificates, authentication, and managed Digital Identity.2

The story

In 1995, two Brazilian information technology professionals, Paulo Wollny and Eduardo Rosemberg, founded the company. In 1996, the company established itself as a certificate authority after it received an investment. In 2000 Certisign became the exclusive Brazilian affiliate of VeriSign.

In 2004, Certisign acquired KMS Software, an identity management provider. As at 2009 Certisign had about 1,500,000 certificates in operation, making it the largest CA in Brazil at that time.

From Wikipedia’s article on Certisign, shared under CC BY-SA 4.0.3

Timeline

  1. 1996Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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